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ID: 23578
Precast Concrete: The Architect's Solution
 
Description:  By the end of this course you will understand:
o The many above and below ground applications for precast concrete
o Cost benefits of precast concrete
o Design options and finishes for architectural applications
o The manufacturing process of precast concrete
+ More

Learn the basics on manufactured concrete during this introductory course developed specifically for architects. Attendees will explore the various benefits of precast concrete – aesthetics, durability, versatility, cost-savings and more – from the perspective of the architect, owner and contractor. An overview of the precast manufacturing process sets the stage in this course for a discussion on common architectural uses, including special finishes, colors and more. AIA members who complete this course will receive 2 Learning Units (LUs).


See some of the many solutions that make precast concrete the obvious choice for your next project. Visit our Precast Solutions Library

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+ Precast Concrete: The Architect's Solution
By the end of this course you will understand:
o The many above and below ground applications for precast concrete
o Cost benefits of precast concrete
o Design options and finishes for architectural applications
o The manufacturing process of precast concrete


Learn the basics on manufactured concrete during this introductory course developed specifically for architects. Attendees will explore the various benefits of precast concrete – aesthetics, durability, versatility, cost-savings and more – from the perspective of the architect, owner and contractor. An overview of the precast manufacturing process sets the stage in this course for a discussion on common architectural uses, including special finishes, colors and more. AIA members who complete this course will receive 1.5 Learning Units (LUs).

Speaker:

Chapters
1. (00:00:01)  Precast Concrete: The Architects' Solution
2. (00:02:16)  Outline
3. (00:03:02)  Introduction (1)
4. (00:03:46)  Introduction (2)
5. (00:04:49)  Above Ground Applications
6. (00:06:09)  Buildings - Commercial
7. (00:06:42)  Buildings - Residential (1)
8. (00:08:06)  Buildings - Residential (2)
9. (00:08:24)  Buildings Floor and Roof
10. (00:08:42)  Buildings - Trim
11. (00:09:08)  Buildings Modular
12. (00:09:43)  Buildings Structural Elements (1)
13. (00:10:03)  Buildings Structural Elements (2)
14. (00:10:40)  Site Amenities & Accessories (1)
15. (00:10:54)  Site Amenities & Accessories (2)
16. (00:11:19)  Sound Walls
17. (00:11:36)  Retaining Walls
18. (00:12:00)  Bridges (1)
19. (00:12:24)  Bridges (2)
20. (00:13:32)  Traffic Barriers
21. (00:13:44)  Security Barriers
22. (00:14:11)  Road Repair
23. (00:14:34)  Fencing
24. (00:14:55)  Underground Applications
25. (00:15:09)  Water & Wastewater
26. (00:15:27)  Stormwater
27. (00:15:40)  Sanitary
28. (00:15:56)  Utilities
29. (00:16:14)  Manufacturing
30. (00:17:55)  Manufacturing - Forms
31. (00:20:15)  Forms - Wood (1)
32. (00:21:20)  Forms - Wood (2)
33. (00:21:49)  Forms - Metal (1)
34. (00:21:59)  Forms - Metal (2)
35. (00:22:22)  Forms
36. (00:24:01)  Types of Concrete (1)
37. (00:27:38)  Types of Concrete - SCC (1)
38. (00:30:20)  Types of Concrete - SCC (2)
39. (00:31:22)  Types of Concrete (2)
40. (00:33:07)  Manufacturing - Materials (1)
41. (00:35:08)  Manufacturing - Materials (2)
42. (00:40:58)  Manufacturing Mix Design (1)
43. (00:41:52)  Manufacturing Mix Design (2)
44. (00:43:16)  Hardened Properties
45. (00:43:28)  Appearance
46. (00:44:22)  Strength
47. (00:44:34)  Durability
48. (00:45:34)  Moisture Penetration
49. (00:46:00)  Abrasion Resistance
50. (00:46:24)  Dimensional Stability
51. (00:47:37)  What Effects Concrete
52. (00:48:43)  Stripping/Form Removal
53. (00:50:35)  Curing
54. (00:51:58)  Storage and Shipping (1)
55. (00:52:01)  Storage and Shipping (2)
56. (00:52:17)  Storage and Shipping (3)
57. (00:52:28)  Storage and Shipping (4)
58. (00:53:52)  Benefits to Architects
59. (00:54:53)  Design
60. (00:55:59)  Aesthetic Versatility (1)
61. (00:56:51)  Aesthetic Versatility (2)
62. (00:57:39)  Aesthetic Versatility (3)
63. (00:57:50)  As-Cast
64. (00:58:58)  Abrasive Blast / Acid Etch
65. (01:02:17)  Exposed Aggregate (1)
66. (01:03:20)  Exposed Aggregate (2)
67. (01:03:48)  Polished Finish
68. (01:04:24)  Veneer (1)
69. (01:08:01)  Veneer (2)
70. (01:09:13)  Cast Stone
71. (01:10:16)  Formliners
72. (01:11:18)  Quality Control
73. (01:13:15)  Superior Strength
74. (01:13:50)  Green and LEED
75. (01:14:38)  Saves Time and Money (1)
76. (01:15:24)  Benefits to Owner
77. (01:15:42)  Durability/Extended Service (1)
78. (01:16:32)  Durability/Extended Service (2)
79. (01:16:56)  Low Maintenance (1)
80. (01:17:57)  Low Maintenance (2)
81. (01:18:57)  Fire Resistant
82. (01:19:35)  Noise Deadening
83. (01:19:55)  Thermal Benefits
84. (01:20:30)  Security
85. (01:21:23)  Speed of Construction (1)
86. (01:22:00)  Speed of Construction (2)
87. (01:22:28)  Speed of Construction (3)
88. (01:22:34)  Saves Time and Money (2)
89. (01:22:53)  Benefits to Contractor
90. (01:23:22)  Low Site Impact
91. (01:24:11)  Low Site
92. (01:24:47)  Reduced Weather Impact (1)
93. (01:25:11)  Reduced Weather Impact (2)
94. (01:25:20)  Speed of Enclosure
95. (01:25:58)  Saves Time and Money (3)
96. (01:26:16)  Design and Use (1)
97. (01:27:27)  Design and Use Design & Cost (1)
98. (01:28:32)  Design and Use Design & Cost (2)
99. (01:31:04)  Design and Use Total Precast (1)
100. (01:31:15)  Design and Use Total Precast (2)
101. (01:31:19)  Design and Use Total Precast (3)
102. (01:32:35)  Design and Use Mock Ups
103. (01:35:18)  Design and Use Colors
104. (01:39:04)  Design and Use Piece Design (1)
105. (01:41:45)  Design and Use Piece Design (2)
106. (01:42:50)  Design and Use Piece Design (3)
107. (01:43:23)  Design and Use (2)
108. (01:44:05)  Summary
109. (01:45:18)  Everybody Wins
Slides
1. (00:00:01)  Precast Concrete: The  -  Precast Concrete: The Architects Solution  
2. (00:00:01)  Precast Concrete: The  -  Precast Concrete: The Architects Solution  
3. (00:02:16)  Outline  -  Outline Introduction Manufacturing Process of Precast Benefits to Architects Benefits to Owners Benefits to Contractors Design and Use Summary   Brief overview of the course
4. (00:03:02)  Introduction  -  Introduction Precast Concrete concrete cast elsewhere than its final position (ACI)   Is tilt up precast? Examples: Simulated stone veneer
5. (00:03:25)  Outline  -  Outline Introduction Manufacturing Process of Precast Benefits to Architects Benefits to Owners Benefits to Contractors Design and Use Summary   Brief overview of the course
6. (00:03:46)  Introduction  -  Introduction Architectural Precast - Precast concrete that will remain visible when in its final position, thereby contributing to the aesthetics of the structure or site. Structural Precast - Precast concrete that supports or transfers loads other than its own weight (e.g. floor roof loads).   Explain each and the term structural-architectural precast concrete
7. (00:04:10)  Introduction  -  Introduction Precast Concrete concrete cast elsewhere than its final position (ACI)   Is tilt up precast? Examples: Simulated stone veneer
8. (00:04:49)  Above Ground Applications  -  Above Ground Applications Buildings and structures Site amenities/accessories Retaining sound walls Bridges Traffic and security barriers Road repairs Fencing   This is only a partial list 1. Offices, retail centers, schools, hospitals, prisons, apartments, houses 2. Tables, signs, rails, trash receptacles 3. MSEs, retaining walls, noise barriers 4. Short span, long span, segmental 5. Median and construction barriers, security applications 6. Precast slabs set into place, flowable grout used to level 7. Look like wood, no rot or painting, much stronger
9. (00:04:56)  Introduction  -  Introduction Architectural Precast - Precast concrete that will remain visible when in its final position, thereby contributing to the aesthetics of the structure or site. Structural Precast - Precast concrete that supports or transfers loads other than its own weight (e.g. floor roof loads).   Explain each and the term structural-architectural precast concrete
10. (00:05:57)  Above Ground Applications  -  Above Ground Applications Buildings and structures Site amenities/accessories Retaining sound walls Bridges Traffic and security barriers Road repairs Fencing   This is only a partial list 1. Offices, retail centers, schools, hospitals, prisons, apartments, houses 2. Tables, signs, rails, trash receptacles 3. MSEs, retaining walls, noise barriers 4. Short span, long span, segmental 5. Median and construction barriers, security applications 6. Precast slabs set into place, flowable grout used to level 7. Look like wood, no rot or painting, much stronger
11. (00:06:09)  Buildings - Commercial  -  Buildings - Commercial   Office building in Indiana Fa ade is made of precast spandrels with column covers used to make window bays. Note the use of cast in lentils, sills and banding
12. (00:06:42)  Buildings - Residential  -  Buildings - Residential Foundations Walls   Precast foundations are growing in popularity for residential and light commercial use. The thin wall design lends itself to other building applications including high rise and complete home building Explain some of the benefits, R-value, ready to finish, reduced weight
13. (00:07:19)  Buildings - Commercial  -  Buildings - Commercial   Office building in Indiana Fa ade is made of precast spandrels with column covers used to make window bays. Note the use of cast in lentils, sills and banding
14. (00:07:51)  Buildings - Residential  -  Buildings - Residential Foundations Walls   Precast foundations are growing in popularity for residential and light commercial use. The thin wall design lends itself to other building applications including high rise and complete home building Explain some of the benefits, R-value, ready to finish, reduced weight
15. (00:08:06)  Buildings - Residential  -  Buildings - Residential   Precast foundations are growing in popularity for residential and light commercial use. The thin wall design lends itself to other building applications including high rise and complete home building Explain some of the benefits, R-value, ready to finish, reduced weight
16. (00:08:24)  Buildings Floor and Roof  -  Buildings Floor and Roof   Precast hollow core and mini T planks are used for flooring and roofing applications
17. (00:08:42)  Buildings - Trim  -  Buildings - Trim   Precast is often used as trim such as sills, lentils, column caps, ornamental pieces, but of course, could have been used for the entire building.
18. (00:09:08)  Buildings Modular  -  Buildings Modular   These precast telecommunication buildings are ready to go. They can come complete with doors, HVAC, electrical connections, etc. Note precast roof on right.
19. (00:09:13)  Buildings - Residential  -  Buildings - Residential   Precast foundations are growing in popularity for residential and light commercial use. The thin wall design lends itself to other building applications including high rise and complete home building Explain some of the benefits, R-value, ready to finish, reduced weight
20. (00:09:32)  Buildings Floor and Roof  -  Buildings Floor and Roof   Precast hollow core and mini T planks are used for flooring and roofing applications
21. (00:09:43)  Buildings Structural Elements  -  Buildings Structural Elements   Examples or structural elements include double Ts, load bearing spandrel panels, columns, etc. This parking garage is great example
22. (00:09:49)  Buildings - Trim  -  Buildings - Trim   Precast is often used as trim such as sills, lentils, column caps, ornamental pieces, but of course, could have been used for the entire building.
23. (00:10:03)  Buildings Structural Elements  -  Buildings Structural Elements   Better picture of Double Ts loading onto spandrels and interior light wall, which allows more natural light into the garage and helps to eliminates dark spaces
24. (00:10:15)  Buildings Modular  -  Buildings Modular   These precast telecommunication buildings are ready to go. They can come complete with doors, HVAC, electrical connections, etc. Note precast roof on right.
25. (00:10:40)  Site Amenities & Accessories  -  Site Amenities Accessories   Rail systems, signs, coping, column caps, etc.
26. (00:10:50)  Buildings Structural Elements  -  Buildings Structural Elements   Examples or structural elements include double Ts, load bearing spandrel panels, columns, etc. This parking garage is great example
27. (00:10:54)  Site Amenities &  -  Site Amenities Accessories   Tables, benches, trash receptacles, precast site amenities are hard to steal and they don t blow away
28. (00:11:10)  Buildings Structural Elements  -  Buildings Structural Elements   Better picture of Double Ts loading onto spandrels and interior light wall, which allows more natural light into the garage and helps to eliminates dark spaces
29. (00:11:19)  Sound Walls  -  Sound Walls   Many states and new developments are requiring sound walls or noise barriers
30. (00:11:36)  Retaining Walls  -  Retaining Walls   One example of a Mechanically Stabilized Earth (MSE) retaining wall.
31. (00:11:47)  Site Amenities & Accessories  -  Site Amenities Accessories   Rail systems, signs, coping, column caps, etc.
32. (00:12:00)  Bridges  -  Bridges   All precast bridge system, MSE retaining walls for the abutments, precast columns and railing systems, precast girders for the bridge
33. (00:12:01)  Site Amenities &  -  Site Amenities Accessories   Tables, benches, trash receptacles, precast site amenities are hard to steal and they don t blow away
34. (00:12:24)  Bridges  -  Bridges   Long span bridges using precast prestressed girders Explain prestressing, and the difference between post- and pre-tensioning
35. (00:12:25)  Sound Walls  -  Sound Walls   Many states and new developments are requiring sound walls or noise barriers
36. (00:12:41)  Retaining Walls  -  Retaining Walls   One example of a Mechanically Stabilized Earth (MSE) retaining wall.
37. (00:13:06)  Bridges  -  Bridges   All precast bridge system, MSE retaining walls for the abutments, precast columns and railing systems, precast girders for the bridge
38. (00:13:30)  Bridges  -  Bridges   Long span bridges using precast prestressed girders Explain prestressing, and the difference between post- and pre-tensioning
39. (00:13:32)  Traffic Barriers  -  Traffic Barriers   Traffic and construction barriers
40. (00:13:44)  Security Barriers  -  Security Barriers   Barriers used for security by the White House, note the planters as well. They can be secured into a footing and used as an attractive yet functional barrier.
41. (00:14:11)  Road Repair  -  Road Repair   Road repairs need to be done quickly, precast systems can have a road open in hours, panels are set and flowable grout is used to level it.
42. (00:14:34)  Fencing  -  Fencing   Precast fences can look like wood, without the rot and painting
43. (00:14:36)  Traffic Barriers  -  Traffic Barriers   Traffic and construction barriers
44. (00:14:49)  Security Barriers  -  Security Barriers   Barriers used for security by the White House, note the planters as well. They can be secured into a footing and used as an attractive yet functional barrier.
45. (00:14:55)  Underground Applications  -  Underground Applications Water and wastewater Stormwater Sanitary Utilities   Precast is not just above ground, but below ground as well.
46. (00:15:09)  Water &  -  Water Wastewater   Precast septic tanks don t leak, float up or crush.
47. (00:15:15)  Road Repair  -  Road Repair   Road repairs need to be done quickly, precast systems can have a road open in hours, panels are set and flowable grout is used to level it.
48. (00:15:27)  Stormwater  -  Stormwater   Stormwater separator which removes solids from stormwater flow, preventing them from entering into rivers, streams, lakes, etc.
49. (00:15:39)  Fencing  -  Fencing   Precast fences can look like wood, without the rot and painting
50. (00:15:40)  Sanitary  -  Sanitary   Precast manholes
51. (00:15:56)  Utilities  -  Utilities   Precast utility vaults are used to provide junction boxes, accessibility for repair and line replacement, etc. Vaults can come with racks installed to save time in the field
52. (00:15:59)  Underground Applications  -  Underground Applications Water and wastewater Stormwater Sanitary Utilities   Precast is not just above ground, but below ground as well.
53. (00:16:14)  Water &  -  Water Wastewater   Precast septic tanks don t leak, float up or crush.
54. (00:16:14)  Manufacturing  -  Manufacturing Forms Types of Concrete Materials Mix Design Properties Stripping Curing Storage and Shipping   List different components and stages in manufacturing
55. (00:16:31)  Stormwater  -  Stormwater   Stormwater separator which removes solids from stormwater flow, preventing them from entering into rivers, streams, lakes, etc.
56. (00:16:45)  Sanitary  -  Sanitary   Precast manholes
57. (00:17:00)  Utilities  -  Utilities   Precast utility vaults are used to provide junction boxes, accessibility for repair and line replacement, etc. Vaults can come with racks installed to save time in the field
58. (00:17:18)  Manufacturing  -  Manufacturing Forms Types of Concrete Materials Mix Design Properties Stripping Curing Storage and Shipping   List different components and stages in manufacturing
59. (00:17:55)  Manufacturing - Forms  -  Manufacturing - Forms Wood most common for architectural, good details, limited number of uses per form Metal Most common for underground, durable, reusable for years Fiberglass great detail and finish, expensive Formliners resin, elastomeric, plastic, wood, steel, plaster   1. Wood forms require skilled labor to build, but allow for customization. Typically good for 20-30 uses based on design and care 2. Metal forms are more common with underground repetitive products such as manholes, and pipe. Very expensive upfront, but can last for years 3. Formliners can be used to simulate almost any finish or design.
60. (00:18:58)  Manufacturing - Forms  -  Manufacturing - Forms Wood most common for architectural, good details, limited number of uses per form Metal Most common for underground, durable, reusable for years Fiberglass great detail and finish, expensive Formliners resin, elastomeric, plastic, wood, steel, plaster   1. Wood forms require skilled labor to build, but allow for customization. Typically good for 20-30 uses based on design and care 2. Metal forms are more common with underground repetitive products such as manholes, and pipe. Very expensive upfront, but can last for years 3. Formliners can be used to simulate almost any finish or design.
61. (00:20:15)  Forms - Wood  -  Forms - Wood   Wood forms, most panels are cast face down.
62. (00:21:17)  Forms - Wood  -  Forms - Wood   Wood forms, most panels are cast face down.
63. (00:21:20)  Forms - Wood  -  Forms - Wood   Workers raking a backer mix. Explain face and backer mixes.
64. (00:21:49)  Forms - Metal  -  Forms - Metal   A large steel form used for making containment tanks
65. (00:21:59)  Forms - Metal  -  Forms - Metal  
66. (00:22:22)  Forms  -  Forms What to watch for: Forms require drafts and chamfers for ease of removal Proper form preparation, seal joints Proper cleaning and maintenance   1.Drafts are slopes on surfaces that make stripping the form easier. Should incorporate a draft minimum 1:12 (1 inch in 1 foot). Delicate units or units with many opening should have this increased to as much as 1:6. 2. Chamfers reduce chipping and injury 3. Prevent form leaks during casting 4. Any defect in the form will show up in the concrete surface
67. (00:22:22)  Forms - Wood  -  Forms - Wood   Workers raking a backer mix. Explain face and backer mixes.
68. (00:22:51)  Forms - Metal  -  Forms - Metal   A large steel form used for making containment tanks
69. (00:23:01)  Forms - Metal  -  Forms - Metal  
70. (00:23:35)  Forms  -  Forms What to watch for: Forms require drafts and chamfers for ease of removal Proper form preparation, seal joints Proper cleaning and maintenance   1.Drafts are slopes on surfaces that make stripping the form easier. Should incorporate a draft minimum 1:12 (1 inch in 1 foot). Delicate units or units with many opening should have this increased to as much as 1:6. 2. Chamfers reduce chipping and injury 3. Prevent form leaks during casting 4. Any defect in the form will show up in the concrete surface
71. (00:24:01)  Types of Concrete  -  Types of Concrete What is Concrete? Different types: Conventional wet-cast Dry-cast Lightweight High-performance Self-Consolidating Concrete (SCC) Architectural   Concrete is a composite material made up of a binder and aggregates. Wet cast excess water for convenience of placing, w/cm ratios in excess of 0.4, slumps in excess of 4 inches, ready mixed concrete Dry-cast minimal amount of water added, granular form, must be vibrated or tamped into place, thicksotropic Lightweight used for weight reduction, improved insulation and fire resisting properties SCC must be flowable (zero energy), passing ability and does not segregate, explain benefits Note: typical architect, engineer will set performance spec and precaster will perform the mix design Arch face mix vs. back up mix, different design to achieve color and texture
72. (00:25:02)  Types of Concrete  -  Types of Concrete What is Concrete? Different types: Conventional wet-cast Dry-cast Lightweight High-performance Self-Consolidating Concrete (SCC) Architectural   Concrete is a composite material made up of a binder and aggregates. Wet cast excess water for convenience of placing, w/cm ratios in excess of 0.4, slumps in excess of 4 inches, ready mixed concrete Dry-cast minimal amount of water added, granular form, must be vibrated or tamped into place, thicksotropic Lightweight used for weight reduction, improved insulation and fire resisting properties SCC must be flowable (zero energy), passing ability and does not segregate, explain benefits Note: typical architect, engineer will set performance spec and precaster will perform the mix design Arch face mix vs. back up mix, different design to achieve color and texture
73. (00:27:38)  Types of Concrete - SCC  -  Types of Concrete - SCC   SCC measured in slump flow or spread
74. (00:28:37)  Types of Concrete - SCC  -  Types of Concrete - SCC   SCC measured in slump flow or spread
75. (00:30:20)  Types of Concrete - SCC  -  Types of Concrete - SCC   SCC can fill a form from one end, no vibration or screeding needed
76. (00:31:17)  Types of Concrete - SCC  -  Types of Concrete - SCC   SCC can fill a form from one end, no vibration or screeding needed
77. (00:31:22)  Types of Concrete  -  Types of Concrete Architectural Face mix Minimum thickness after consolidation one-inch or 1.5 x max. agg. size Similar thermal and shrinkage coefficients Similar w/cm ratios and proportions   Should use similar face and back-up mixes to avoid wrapping or bowing
78. (00:32:19)  Types of Concrete  -  Types of Concrete Architectural Face mix Minimum thickness after consolidation one-inch or 1.5 x max. agg. size Similar thermal and shrinkage coefficients Similar w/cm ratios and proportions   Should use similar face and back-up mixes to avoid wrapping or bowing
79. (00:33:07)  Manufacturing - Materials  -  Manufacturing - Materials Coarse and fine aggregate (stone and sand) 60-70% by volume, 70-85% by mass Properly Graded Gap Graded Note: natural materials will vary   Explain: difference between stone and sand = passing a number 4 sieve Requirements of aggregate: sound, clean and no organic impurities Explain gradation - Gap graded for face mixes, reduces wash out and increases uniformity
80. (00:34:04)  Manufacturing - Materials  -  Manufacturing - Materials Coarse and fine aggregate (stone and sand) 60-70% by volume, 70-85% by mass Properly Graded Gap Graded Note: natural materials will vary   Explain: difference between stone and sand = passing a number 4 sieve Requirements of aggregate: sound, clean and no organic impurities Explain gradation - Gap graded for face mixes, reduces wash out and increases uniformity
81. (00:35:08)  Manufacturing - Materials  -  Manufacturing - Materials Cement Grey - color may vary White - more stable for colors Water - must be potable or meet ASTM C 1602 Admixtures Air   Five types of cement, list Grey common, ok for deep exposures White better for color, light to medium exposures SCMs Metakaolin, silica fume Water if not potable, must be tested no organics or solids, Cl- List common admixtures and benefits Explain air entrainment, entrapped air
82. (00:36:04)  Manufacturing - Materials  -  Manufacturing - Materials Cement Grey - color may vary White - more stable for colors Water - must be potable or meet ASTM C 1602 Admixtures Air   Five types of cement, list Grey common, ok for deep exposures White better for color, light to medium exposures SCMs Metakaolin, silica fume Water if not potable, must be tested no organics or solids, Cl- List common admixtures and benefits Explain air entrainment, entrapped air
83. (00:40:58)  Manufacturing Mix Design  -  Manufacturing Mix Design Water-cementitious ratio, lower the better (0.40 0.45)   Explain w/cm by mass
84. (00:41:51)  Manufacturing Mix Design  -  Manufacturing Mix Design Water-cementitious ratio, lower the better (0.40 0.45)   Explain w/cm by mass
85. (00:41:52)  Manufacturing Mix Design  -  Manufacturing Mix Design Water-cementitious ratio by volume   Explain w/cm by volume.
86. (00:42:44)  Manufacturing Mix Design  -  Manufacturing Mix Design Water-cementitious ratio by volume   Explain w/cm by volume.
87. (00:43:16)  Hardened Properties  -  Hardened Properties Appearance Strength Durability Moisture penetration Abrasion resistance Dimensional stability   List hardened properties
88. (00:43:28)  Appearance  -  Appearance Precast concrete can be made in many: Shapes or designs Colors Textures Finishes Combinations of the above *Repeatable due to quality control   Made into what ever can be formed Almost any color or shade A variety of textures will discuss in more detail Finish includes texture, color and general look of the product Combinations require reveals or demarcations, some form of separation from one finish to the next. Guideline: depth 1.5 x agg. size, width in nominal increments generally larger than the depth to ease stripping.
89. (00:44:08)  Hardened Properties  -  Hardened Properties Appearance Strength Durability Moisture penetration Abrasion resistance Dimensional stability   List hardened properties
90. (00:44:19)  Appearance  -  Appearance Precast concrete can be made in many: Shapes or designs Colors Textures Finishes Combinations of the above *Repeatable due to quality control   Made into what ever can be formed Almost any color or shade A variety of textures will discuss in more detail Finish includes texture, color and general look of the product Combinations require reveals or demarcations, some form of separation from one finish to the next. Guideline: depth 1.5 x agg. size, width in nominal increments generally larger than the depth to ease stripping.
91. (00:44:22)  Strength  -  Strength Maximum stress concrete can withstand before failure Concrete is good in compression, but weak in tension   Review briefly stress vs. force Reinforcement required when concrete is in tension
92. (00:44:34)  Durability  -  Durability A product s ability to survive in its exposure environment for its intended service life. Ability to resist internal and external attack Corrosion of reinforcement Freeze/Thaw resistance ASR   Explain corrosion, freeze/thaw, ASR, DEF, sulfate attack Discuss service life
93. (00:45:13)  Strength  -  Strength Maximum stress concrete can withstand before failure Concrete is good in compression, but weak in tension   Review briefly stress vs. force Reinforcement required when concrete is in tension
94. (00:45:24)  Durability  -  Durability A product s ability to survive in its exposure environment for its intended service life. Ability to resist internal and external attack Corrosion of reinforcement Freeze/Thaw resistance ASR   Explain corrosion, freeze/thaw, ASR, DEF, sulfate attack Discuss service life
95. (00:45:34)  Moisture Penetration  -  Moisture Penetration Porosity - a ratio of the total voids in a mass to the total mass itself Permeability is a measure of the flow of a liquid or a gas through a substance Water resistant reduces wetting, but permits passage of moisture under hydrostatic pressure Water proof impervious to water in either liquid or vapor state   discuss
96. (00:46:00)  Abrasion Resistance  -  Abrasion Resistance Ability to resist damage caused by rubbing Important for: Floors Hydraulic Structures Bridges Parking Garages   discuss
97. (00:46:24)  Dimensional Stability  -  Dimensional Stability Concrete experiences volumetric change due to: Temperature Moisture Chemical External forces   Temp. expansion and contraction, differentials led to curling Moist drying shrinkage Chemical ASR, DEF, autogenous shrinkage External forces - creep
98. (00:46:25)  Moisture Penetration  -  Moisture Penetration Porosity - a ratio of the total voids in a mass to the total mass itself Permeability is a measure of the flow of a liquid or a gas through a substance Water resistant reduces wetting, but permits passage of moisture under hydrostatic pressure Water proof impervious to water in either liquid or vapor state   discuss
99. (00:46:51)  Abrasion Resistance  -  Abrasion Resistance Ability to resist damage caused by rubbing Important for: Floors Hydraulic Structures Bridges Parking Garages   discuss
100. (00:47:15)  Dimensional Stability  -  Dimensional Stability Concrete experiences volumetric change due to: Temperature Moisture Chemical External forces   Temp. expansion and contraction, differentials led to curling Moist drying shrinkage Chemical ASR, DEF, autogenous shrinkage External forces - creep
101. (00:47:37)  What Effects Concrete s  -  What Effects Concrete s Hardened Properties? Water-Cementitious ratio Quality materials and mix design Good production practices Proper curing procedures *All of which you get with precast concrete. These are more difficult to ensure in field conditions.   Discuss note bad design cannot be fixed with good workmanship and practices.
102. (00:48:27)  What Effects Concrete s  -  What Effects Concrete s Hardened Properties? Water-Cementitious ratio Quality materials and mix design Good production practices Proper curing procedures *All of which you get with precast concrete. These are more difficult to ensure in field conditions.   Discuss note bad design cannot be fixed with good workmanship and practices.
103. (00:48:43)  Stripping/Form Removal  -  Stripping/Form Removal Must have appropriate stripping strength Forms must be removed properly and completely Always lift pieces level and as designed   Tested by companion cylinders, non destructive tests Ex. Windsor probe, rebound hammer
104. (00:49:32)  Stripping/Form Removal  -  Stripping/Form Removal Must have appropriate stripping strength Forms must be removed properly and completely Always lift pieces level and as designed   Tested by companion cylinders, non destructive tests Ex. Windsor probe, rebound hammer
105. (00:50:35)  Curing  -  Curing Why cure? Proper curing temps, procedures Concrete is the only material that gains strength over time Curing affects color Curing affects strength Why precast is cured better than concrete cast on site   Concrete needs moisture to continuously hydrate and get stronger Standard 73 degrees, 100% relative humidity Early drying tends to lighten concrete Strength increases with additional curing Cured in a controlled environment relative to the field
106. (00:51:24)  Curing  -  Curing Why cure? Proper curing temps, procedures Concrete is the only material that gains strength over time Curing affects color Curing affects strength Why precast is cured better than concrete cast on site   Concrete needs moisture to continuously hydrate and get stronger Standard 73 degrees, 100% relative humidity Early drying tends to lighten concrete Strength increases with additional curing Cured in a controlled environment relative to the field
107. (00:51:58)  Storage and Shipping  -  Storage and Shipping Storage yards Shipping time Erection of products   Wight limits, typically 20 tons Height limits, typically 12- 13.5 Length, typically 45 long Other special permits Larger pieces = more sq. erected per hour= less cost
108. (00:52:01)  Storage and Shipping  -  Storage and Shipping   Properly and safely stacked
109. (00:52:17)  Storage &  -  Storage Shipping   Proper bearing
110. (00:52:28)  Storage and Shipping  -  Storage and Shipping   Designs must be able to be shipped, use protection for chains or straps Keep bearing off of exposed areas (may leave marks note curing or staining). Plastic bubble pads work well.
111. (00:52:46)  Storage and Shipping  -  Storage and Shipping Storage yards Shipping time Erection of products   Wight limits, typically 20 tons Height limits, typically 12- 13.5 Length, typically 45 long Other special permits Larger pieces = more sq. erected per hour= less cost
112. (00:52:49)  Storage and Shipping  -  Storage and Shipping   Properly and safely stacked
113. (00:53:05)  Storage &  -  Storage Shipping   Proper bearing
114. (00:53:15)  Storage and Shipping  -  Storage and Shipping   Designs must be able to be shipped, use protection for chains or straps Keep bearing off of exposed areas (may leave marks note curing or staining). Plastic bubble pads work well.
115. (00:53:52)  Benefits to Architects  -  Benefits to Architects Design flexibility Aesthetic versatility Quality control Superior strength Green - sustainability Readily available Saves time and money  
116. (00:54:39)  Benefits to Architects  -  Benefits to Architects Design flexibility Aesthetic versatility Quality control Superior strength Green - sustainability Readily available Saves time and money  
117. (00:54:53)  Design  -  Design Flexibility Concrete can be made into any shape that can be formed Modular High level of detail Finishes are able to simulate almost any material   Compare to building a large radius out of granite or natural stone Repetitiveness saves money Ex of materials limestone, granite, brick, wood, terra cotta, stone, almost anything
118. (00:55:39)  Design  -  Design Flexibility Concrete can be made into any shape that can be formed Modular High level of detail Finishes are able to simulate almost any material   Compare to building a large radius out of granite or natural stone Repetitiveness saves money Ex of materials limestone, granite, brick, wood, terra cotta, stone, almost anything
119. (00:55:59)  Aesthetic Versatility  -  Aesthetic Versatility Wide variety of colors  
120. (00:56:45)  Aesthetic Versatility  -  Aesthetic Versatility Wide variety of colors  
121. (00:56:51)  Aesthetic Versatility  -  Aesthetic Versatility Exposures: None skin, paste only as cast Light matrix predominant (Acid, AB) Medium 50/50 matrix and course aggregate (Acid, AB) Deep coarse aggregate predominant (AB, EA)   Paste cement and water Matrix sand and paste
122. (00:57:37)  Aesthetic Versatility  -  Aesthetic Versatility Exposures: None skin, paste only as cast Light matrix predominant (Acid, AB) Medium 50/50 matrix and course aggregate (Acid, AB) Deep coarse aggregate predominant (AB, EA)   Paste cement and water Matrix sand and paste
123. (00:57:39)  Aesthetic Versatility  -  Aesthetic Versatility Wide variety textures and finishes: As cast- form finish Abrasive blast Acid etched Exposed aggregate surface retarder Grinding/tooling Veneers Cast stone Formliners  
124. (00:57:50)  As-Cast  -  As-Cast   As cast- form finish -Smooth -Typically has imperfections, hard to match colors panel to panel -Less expensive, should use demarcations, sculpturing, to break up flatness. -Typically does not weather well Steiner Studios, NY
125. (00:58:24)  Aesthetic Versatility  -  Aesthetic Versatility Wide variety textures and finishes: As cast- form finish Abrasive blast Acid etched Exposed aggregate surface retarder Grinding/tooling Veneers Cast stone Formliners  
126. (00:58:34)  As-Cast  -  As-Cast   As cast- form finish -Smooth -Typically has imperfections, hard to match colors panel to panel -Less expensive, should use demarcations, sculpturing, to break up flatness. -Typically does not weather well Steiner Studios, NY
127. (00:58:58)  Abrasive Blast / Acid Etch  -  Abrasive Blast / Acid Etch   Top abrasive blast, deep finish, - good for color matching, hiding imperfections, good weathering characteristics. Abrasive blasting typically mats or dulls the color Bottom acid etch, medium finish, note same mix, sand and cement more predominant. Usually adds a sparkle to the sand.
128. (00:59:43)  Abrasive Blast / Acid Etch  -  Abrasive Blast / Acid Etch   Top abrasive blast, deep finish, - good for color matching, hiding imperfections, good weathering characteristics. Abrasive blasting typically mats or dulls the color Bottom acid etch, medium finish, note same mix, sand and cement more predominant. Usually adds a sparkle to the sand.
129. (01:02:17)  Exposed Aggregate  -  Exposed Aggregate   Exposed aggregate by surface retarder. -Describe surface retarders -Panel to panel color matching good, due to color coming from the stone predominately. -Avoid blends of aggregates if possible. -Used often to simulate granite, can apply a wet look sealer for a greater sheen. -Gap-graded aggregates
130. (01:02:59)  Exposed Aggregate  -  Exposed Aggregate   Exposed aggregate by surface retarder. -Describe surface retarders -Panel to panel color matching good, due to color coming from the stone predominately. -Avoid blends of aggregates if possible. -Used often to simulate granite, can apply a wet look sealer for a greater sheen. -Gap-graded aggregates
131. (01:03:20)  Exposed Aggregate  -  Exposed Aggregate   Example
132. (01:03:48)  Polished Finish  -  Polished Finish   Grinding and polishing Expensive and labor intensive
133. (01:04:02)  Exposed Aggregate  -  Exposed Aggregate   Example
134. (01:04:24)  Veneer  -  Veneer   Precast can imbed or be veneered with other materials such as clay products, stone, granite, etc. Bond breaker required when thermal expansion is different (e.g. granite, limestone)
135. (01:04:30)  Polished Finish  -  Polished Finish   Grinding and polishing Expensive and labor intensive
136. (01:05:04)  Veneer  -  Veneer   Precast can imbed or be veneered with other materials such as clay products, stone, granite, etc. Bond breaker required when thermal expansion is different (e.g. granite, limestone)
137. (01:08:01)  Veneer  -  Veneer   Precast can also be used as the veneer. Los Angles City Hall common area used 9 x 9 precast pavers designed to simulate terra cotta. These were mortar set over a reinforced concrete slab
138. (01:08:42)  Veneer  -  Veneer   Precast can also be used as the veneer. Los Angles City Hall common area used 9 x 9 precast pavers designed to simulate terra cotta. These were mortar set over a reinforced concrete slab
139. (01:09:13)  Cast Stone  -  Cast Stone   Cast stone wet cast or dry cast Dry cast no air or bugholes, tamped into the form Both typically acid washed
140. (01:09:54)  Cast Stone  -  Cast Stone   Cast stone wet cast or dry cast Dry cast no air or bugholes, tamped into the form Both typically acid washed
141. (01:10:16)  Formliners  -  Formliners   Can be made from many materials, can make precast look like anything
142. (01:10:55)  Formliners  -  Formliners   Can be made from many materials, can make precast look like anything
143. (01:11:18)  Quality Control  -  Quality Control Controlled and monitored environment Shelter from weather Consistent quality materials trained labor Quality control personnel Documentation of production for each piece Certified plants   Precast plants offer Temperature controlled No rain, wind, snow Field labor is different from location-to-location and maybe from day-to-day Precast plants have trained personnel whose job is to focus on quality Much better documentation of production, typically none in the field NPCA, PCI
144. (01:11:56)  Quality Control  -  Quality Control Controlled and monitored environment Shelter from weather Consistent quality materials trained labor Quality control personnel Documentation of production for each piece Certified plants   Precast plants offer Temperature controlled No rain, wind, snow Field labor is different from location-to-location and maybe from day-to-day Precast plants have trained personnel whose job is to focus on quality Much better documentation of production, typically none in the field NPCA, PCI
145. (01:13:15)  Superior Strength  -  Superior Strength Precast concrete has superior strength over many other cladding materials such as: EIFS, masonry, metals, wood, glass, etc. Precast concrete can be multipurpose i.e. used as a primary structural material, shear walls, etc.  
146. (01:13:50)  Green and LEED  -  Green and LEED Precast concrete can relate directly to four LEED credits and a total of eight points Site credit 6 Stormwater management Site credit 7 Heat Island reduction Materials Resources credit 4 Recycled content Material Resources credit 5 Regional Materials   Reducing runoff with permeable precast pavers Light reflective precast Use of SCMs Most jobs are within 500 miles of a precaster
147. (01:13:54)  Superior Strength  -  Superior Strength Precast concrete has superior strength over many other cladding materials such as: EIFS, masonry, metals, wood, glass, etc. Precast concrete can be multipurpose i.e. used as a primary structural material, shear walls, etc.  
148. (01:14:29)  Green and LEED  -  Green and LEED Precast concrete can relate directly to four LEED credits and a total of eight points Site credit 6 Stormwater management Site credit 7 Heat Island reduction Materials Resources credit 4 Recycled content Material Resources credit 5 Regional Materials   Reducing runoff with permeable precast pavers Light reflective precast Use of SCMs Most jobs are within 500 miles of a precaster
149. (01:14:38)  Saves Time and Money  -  Saves Time and Money Speed of Erection Rapid enclosure High level of detail Able to duplicate almost any material Excellent to match older materials or existing architecture   -Other trades can start faster -good for renovation, restoration, additions, etc.
150. (01:15:16)  Saves Time and Money  -  Saves Time and Money Speed of Erection Rapid enclosure High level of detail Able to duplicate almost any material Excellent to match older materials or existing architecture   -Other trades can start faster -good for renovation, restoration, additions, etc.
151. (01:15:24)  Benefits to Owner  -  Benefits to Owner Durability/extended service life Low maintenance - life cycle costs Fire resistant non combustible - passive resistance Noise deadening Thermal benefits Security Speed of construction quicker occupancy Reduced construction costs  
152. (01:15:42)  Durability/Extended Service Life  -  Durability/Extended Service Life 100 year service life is possible   Lowers insurance costs Lower life cycle costs Increases public safety and welfare
153. (01:16:00)  Benefits to Owner  -  Benefits to Owner Durability/extended service life Low maintenance - life cycle costs Fire resistant non combustible - passive resistance Noise deadening Thermal benefits Security Speed of construction quicker occupancy Reduced construction costs  
154. (01:16:19)  Durability/Extended Service Life  -  Durability/Extended Service Life 100 year service life is possible   Lowers insurance costs Lower life cycle costs Increases public safety and welfare
155. (01:16:32)  Durability/Extended Service  -  Durability/Extended Service Life Low permeability/porosity High strength Resistance to storms, hurricanes, UV, rot, mold, pests   Lowers insurance costs Lower life cycle costs Increases public safety and welfare
156. (01:16:56)  Low Maintenance  -  Low Maintenance No painting No warping No rusting No breakage No moisture infiltration or mold Reduced joints   Reduce life cycle costs
157. (01:17:07)  Durability/Extended Service  -  Durability/Extended Service Life Low permeability/porosity High strength Resistance to storms, hurricanes, UV, rot, mold, pests   Lowers insurance costs Lower life cycle costs Increases public safety and welfare
158. (01:17:31)  Low Maintenance  -  Low Maintenance No painting No warping No rusting No breakage No moisture infiltration or mold Reduced joints   Reduce life cycle costs
159. (01:17:57)  Low Maintenance  -  Low Maintenance   Reduce life cycle costs
160. (01:18:34)  Low Maintenance  -  Low Maintenance   Reduce life cycle costs
161. (01:18:54)  Fire Resistant  -  Fire Resistant Non-combustible Reduces insurance Saves lives Fire ratings easily achieved  
162. (01:18:56)  Low Maintenance  -  Low Maintenance No painting No warping No rusting No breakage No moisture infiltration or mold Reduced joints   Reduce life cycle costs
163. (01:18:57)  Fire Resistant  -  Fire Resistant Non-combustible Reduces insurance Saves lives Fire ratings easily achieved  
164. (01:19:27)  Fire Resistant  -  Fire Resistant Non-combustible Reduces insurance Saves lives Fire ratings easily achieved  
165. (01:19:35)  Noise Deadening  -  Noise Deadening Reduces sound transmission from both outside and inside sources Concrete is a good sound insulator  
166. (01:19:55)  Thermal Benefits  -  Thermal Benefits Reduced air infiltration Reduced utility costs Acts as thermal mass  
167. (01:20:11)  Noise Deadening  -  Noise Deadening Reduces sound transmission from both outside and inside sources Concrete is a good sound insulator  
168. (01:20:30)  Thermal Benefits  -  Thermal Benefits Reduced air infiltration Reduced utility costs Acts as thermal mass  
169. (01:20:30)  Security  -  Security Extremely difficult to break into Pest entry no vermin, termites Terrorist threats Hard to steal  
170. (01:21:06)  Security  -  Security Extremely difficult to break into Pest entry no vermin, termites Terrorist threats Hard to steal  
171. (01:21:23)  Speed of Construction  -  Speed of Construction Reduce building enclosure time and overall construction time Quicker Occupancy = making money faster  
172. (01:21:58)  Speed of Construction  -  Speed of Construction Reduce building enclosure time and overall construction time Quicker Occupancy = making money faster  
173. (01:22:00)  Speed of Construction  -  Speed of Construction   Modular systems can really provide benefit and speed. These units included the windows and insulation. They were cast while the contractor built the foundation on site.
174. (01:22:28)  Speed of Construction  -  Speed of Construction   Grace Wilday Junior High School, Roselle, New Jersey 21 classroom addition, over 21,000 s.f. completed over summer vacation in approximately 2 months.
175. (01:22:33)  Speed of Construction  -  Speed of Construction   Modular systems can really provide benefit and speed. These units included the windows and insulation. They were cast while the contractor built the foundation on site.
176. (01:22:34)  Saves Time and Money  -  Saves Time and Money Can reduce overall project costs Precast can be less expensive than traditional materials Less site labor reduces costs  
177. (01:22:53)  Benefits to Contractor  -  Benefits to Contractor Low site impact Reduced weather dependency Speed of enclosure Saves time and money  
178. (01:23:01)  Speed of Construction  -  Speed of Construction   Grace Wilday Junior High School, Roselle, New Jersey 21 classroom addition, over 21,000 s.f. completed over summer vacation in approximately 2 months.
179. (01:23:08)  Saves Time and Money  -  Saves Time and Money Can reduce overall project costs Precast can be less expensive than traditional materials Less site labor reduces costs  
180. (01:23:22)  Low Site Impact  -  Low Site Impact Site Impact a combination of storage space required, site access and duration of that access, limitations on other trades during that access Precast can be delivered to the site as needed Other trades can start sooner  
181. (01:23:26)  Benefits to Contractor  -  Benefits to Contractor Low site impact Reduced weather dependency Speed of enclosure Saves time and money  
182. (01:23:54)  Low Site Impact  -  Low Site Impact Site Impact a combination of storage space required, site access and duration of that access, limitations on other trades during that access Precast can be delivered to the site as needed Other trades can start sooner  
183. (01:24:11)  Low Site  -  Low Site Impact  
184. (01:24:43)  Low Site  -  Low Site Impact  
185. (01:24:47)  Reduced Weather Impact  -  Reduced Weather Impact Precast can be erected in all temperatures and in most conditions  
186. (01:25:11)  Reduced Weather Impact  -  Reduced Weather Impact Site weather conditions do not effect the manufacturing process Rain only helps curing  
187. (01:25:19)  Reduced Weather Impact  -  Reduced Weather Impact Precast can be erected in all temperatures and in most conditions  
188. (01:25:20)  Speed of Enclosure  -  Speed of Enclosure Buildings can be erected and dried-in faster than conventional construction  
189. (01:25:44)  Reduced Weather Impact  -  Reduced Weather Impact Site weather conditions do not effect the manufacturing process Rain only helps curing  
190. (01:25:52)  Speed of Enclosure  -  Speed of Enclosure Buildings can be erected and dried-in faster than conventional construction  
191. (01:25:58)  Saves Time and Money  -  Saves Time and Money Precast products can be made while the excavation and foundations are being performed on site.  
192. (01:26:16)  Design and Use  -  Design and Use Design cost reduction Total precast construction Mock-ups and samples Colors and finishes Piece design and componentizing When not to use precast  
193. (01:26:31)  Saves Time and Money  -  Saves Time and Money Precast products can be made while the excavation and foundations are being performed on site.  
194. (01:26:48)  Design and Use  -  Design and Use Design cost reduction Total precast construction Mock-ups and samples Colors and finishes Piece design and componentizing When not to use precast  
195. (01:27:27)  Design and Use Design & Cost  -  Design and Use Design Cost Reduction Start with the overall geometry of the structure, not the panel Use repetition Master mold concept, forms are expensive, allow enough time not to need extra molds  
196. (01:27:59)  Design and Use Design & Cost  -  Design and Use Design Cost Reduction Start with the overall geometry of the structure, not the panel Use repetition Master mold concept, forms are expensive, allow enough time not to need extra molds  
197. (01:28:32)  Design and Use Design & Cost  -  Design and Use Design Cost Reduction Big pieces are better then small ones reduce handling and erection time Multiple finishes can increase cost Must be constructible Consider site conditions Involve precaster early in the process initial design phase  
198. (01:29:03)  Design and Use Design & Cost  -  Design and Use Design Cost Reduction Big pieces are better then small ones reduce handling and erection time Multiple finishes can increase cost Must be constructible Consider site conditions Involve precaster early in the process initial design phase  
199. (01:31:04)  Design and Use Total Precast  -  Design and Use Total Precast Construction   Total precast construction for maximum savings and speed
200. (01:31:15)  Design and Use Total Precast  -  Design and Use Total Precast Construction   Grace Wilday Junior High School, Roselle, New Jersey 21 classroom addition, over 21,000 s.f. completed over summer vacation in approximately 2 months.
201. (01:31:19)  Design and Use Total Precast  -  Design and Use Total Precast Construction   Melrose apartments, 3-story, 3 family units, they completed 30 units in 15 months with only 6 men, this was six months early. Approximate cost was $72/s.f.
202. (01:31:33)  Design and Use Total Precast  -  Design and Use Total Precast Construction   Total precast construction for maximum savings and speed
203. (01:31:45)  Design and Use Total Precast  -  Design and Use Total Precast Construction   Grace Wilday Junior High School, Roselle, New Jersey 21 classroom addition, over 21,000 s.f. completed over summer vacation in approximately 2 months.
204. (01:31:50)  Design and Use Total Precast  -  Design and Use Total Precast Construction   Melrose apartments, 3-story, 3 family units, they completed 30 units in 15 months with only 6 men, this was six months early. Approximate cost was $72/s.f.
205. (01:32:35)  Design and Use Mock Ups  -  Design and Use Mock Ups Build a full scale mock up of a typical section on the site Build mock ups early in the project View in sun, shade, wet, dry Use for variation control and acceptance Establish patching and repair procedures Evaluate the effects of weathering May help identify other construction issues   Mock ups are worth the investment. Have the precaster use regular production techniques. Develop patching and repair techniques. Can use this as a guide in the plant to check acceptability
206. (01:33:04)  Design and Use Mock Ups  -  Design and Use Mock Ups Build a full scale mock up of a typical section on the site Build mock ups early in the project View in sun, shade, wet, dry Use for variation control and acceptance Establish patching and repair procedures Evaluate the effects of weathering May help identify other construction issues   Mock ups are worth the investment. Have the precaster use regular production techniques. Develop patching and repair techniques. Can use this as a guide in the plant to check acceptability
207. (01:35:18)  Design and Use Colors and  -  Design and Use Colors and Finishes Visual characteristics are usually determined by the architect How color is achieved Recommendations: Match paste, sand and stone Use white cement or blends Use slightly darker matrix with deep exposures Rounded aggregates help with weathering and uniformity   Here are thing to consider when selecting a finish: For improved color consistency 1. Match sand, stone and cement when ever possible, 2. White cement will also provide better color consistency 3. Use deeper aggregate exposures. These will also weather better over time.
208. (01:35:46)  Design and Use Colors and  -  Design and Use Colors and Finishes Visual characteristics are usually determined by the architect How color is achieved Recommendations: Match paste, sand and stone Use white cement or blends Use slightly darker matrix with deep exposures Rounded aggregates help with weathering and uniformity   Here are thing to consider when selecting a finish: For improved color consistency 1. Match sand, stone and cement when ever possible, 2. White cement will also provide better color consistency 3. Use deeper aggregate exposures. These will also weather better over time.
209. (01:39:04)  Design and Use Piece Design &  -  Design and Use Piece Design Componentizing Size geometry by engineer, precaster Open and closed piece design Returns   - Open shapes are more fragile and dependant on site tolerances - Explain difference in exposure of returns, keep to 12 or use a composite casting technique
210. (01:39:31)  Design and Use Piece Design &  -  Design and Use Piece Design Componentizing Size geometry by engineer, precaster Open and closed piece design Returns   - Open shapes are more fragile and dependant on site tolerances - Explain difference in exposure of returns, keep to 12 or use a composite casting technique
211. (01:41:45)  Design and Use Piece Design &  -  Design and Use Piece Design Componentizing Stress concentrations, handling Joints and corners   - Use rounded intersections to reduce stress - Explain quirks
212. (01:42:11)  Design and Use Piece Design &  -  Design and Use Piece Design Componentizing Stress concentrations, handling Joints and corners   - Use rounded intersections to reduce stress - Explain quirks
213. (01:42:50)  Design and Use Piece Design &  -  Design and Use Piece Design Componentizing Larger pieces are better Repetition of pieces = reduces costs Involve the precaster early in the design process Consider constructability and shipping Tolerances  
214. (01:43:15)  Design and Use Piece Design &  -  Design and Use Piece Design Componentizing Larger pieces are better Repetition of pieces = reduces costs Involve the precaster early in the design process Consider constructability and shipping Tolerances  
215. (01:43:23)  Design and Use  -  Design and Use When not to use precast Mass pours or when monolithic pours are required i.e. dams, nuclear reactors Slabs on ground  
216. (01:43:48)  Design and Use  -  Design and Use When not to use precast Mass pours or when monolithic pours are required i.e. dams, nuclear reactors Slabs on ground  
217. (01:44:05)  Summary  -  Summary Precast Concrete: Offers a virtually endless array of colors, finishes and textures Can allow you to be creative in design Can reduce construction times, delays and project costs Is extremely durable 100 year service life Reduces overall life-cycle costs Is produced in a quality controlled environment Can qualify for LEED credits  
218. (01:44:30)  Summary  -  Summary Precast Concrete: Offers a virtually endless array of colors, finishes and textures Can allow you to be creative in design Can reduce construction times, delays and project costs Is extremely durable 100 year service life Reduces overall life-cycle costs Is produced in a quality controlled environment Can qualify for LEED credits  
219. (01:45:18)  Everybody Wins  -  Everybody Wins with Precast Concrete! Thank You!  
220. (01:45:44)  Everybody Wins  -  Everybody Wins with Precast Concrete! Thank You!