SECTION 03360
INTEGRALLY COLORED CONCRETE
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PART 1 GENERAL
1.1
1.2
1.3
SECTION INCLUDES
A.
Requirements for Integrally Colored Concrete.
B.
Integrally colored concrete slabs-on-grade.
C.
Integrally colored concrete sidewalks.
D.
Integrally colored concrete driveways.
E.
Integrally colored concrete patios.
F.
Integrally colored concrete roads.
G.
Integrally colored concrete parking lots.
H.
Curing of integrally colored concrete.
RELATED SECTIONS
A.
Section 02751 - Portland Cement Concrete Paving.
B.
Section 03300 - Cast-in-place Concrete.
C.
Section 03330 - Architectural Concrete.
D.
Section 03365 - Exposed Aggregate Concrete.
E.
Section 07900 - Joint Sealers: Colored sealants for Joints.
REFERENCES
A.
ACI 301 "Specification for Structural Concrete for Buildings".
B.
ACI 302.IR "Guide for Concrete Floor and Slab Construction".
C.
ACI 303.1 "Standard Specification for Cast-In-Place Architectural Concrete".
D.
ACI 304 "Recommended Practice for Measuring, Mixing, Transporting and Placing of
Concrete."
E.
ACI 305R - Recommended Practice for Hot Weather Concreting.
F.
ACI 306R - Recommended Practice for Cold Weather Concreting.
03360-1
1.4
1.5
G.
ASTM C 309 - Standard Specification for Liquid Membrane-Forming Compounds for Curing
Concrete; American Concrete Institute.
H.
ASTM C 494 - Standard Specification for Chemical Admixtures for Concrete.
I.
ASTM C 979 - Standard Specification for Pigments for Integrally Colored Concrete.
J.
ASSHTO M194 - Chemical Admixtures.
K.
NRMCA CIP 5 - Plastic Shrinkage Cracking.
SUBMITTALS
A.
Submit under provisions of Section 01300.
B.
Manufacturer's data sheets on each product specified, including:
1.
Preparation instructions and recommendations.
2.
Storage and handling requirements and recommendations.
3.
Installation methods.
C.
Design Mixes: For each type of integrally colored concrete.
D.
Samples for Concrete Color Selection: Manufacturer's color chart or sample chip set;
indicating color additive number and dosage rate. Submittals are for general verification of
color and may vary somewhat from concrete finished in field.
E.
Samples of Form Facing Materials:Coordinate submittal with materials specified in Section
_____.
F.
Qualification Data: For firms indicated in "Quality Assurance" Article, including list of
completed projects.
QUALITY ASSURANCE
A.
Manufacturer Qualifications: Manufacturer with 10 years experience in the production of all
products specified in this section.
B.
Installer Qualifications: An installer with 5 years experience with work of similar scope and
quality.
C.
Provide all materials from the same source.
D.
Comply with the requirements of ACI 301.
E.
Mock-Up: Provide a mock-up for evaluation of consistent color and visual appearance of
colored concrete.
1.
Coordinate mock-up requirements with mock-ups specified in other sections; same
mock-up may be used for more than one purpose.
2.
Construct at least one month before start of colored concrete work, using materials
and methods to be used in actual work.
3.
Locate mock-ups on site in areas designated by Architect. Mock up shall be:
a.
Full size.
b.
10 feet by 10 feet (3 m by 3 m).
c.
4 feet by 4 feet (1.2 m by 1.2 m).
d.
_____________.
4.
Retain samples of all materials used in each mock-up for comparison purposes.
5.
Mock-up may remain and be utilized in the work.
6.
Remove mock-up when no longer required for comparison with finished work.
03360-2
F.
1.6
1.7
Preconstruction Conference: Conduct a review of procedures required to produce specified
results.
DELIVERY, STORAGE, AND HANDLING
A.
Comply with manufacturer's instructions.
B.
Deliver to site or batch plant in original, unopened packaging. Store in dry conditions.
PROJECT CONDITIONS
A.
Environmental Requirements:
1.
Schedule placement to minimize exposure to wind and hot sun before materials are
applied.
2.
Avoid placing concrete if rain, snow, or frost is forecast within 24-hours. Protect fresh
concrete from moisture and freezing.
3.
Comply with practices described in ACI 305R and ACI 306R.
B.
Plant-Mixed Concrete: Schedule delivery of concrete to provide consistent mix times from
batching until discharge. Maintain batch records for each batch.
C.
Concrete Paving: Schedule placement to minimize exposure to wind and hot sun before
curing materials are applied.
D.
Formed Concrete: Schedule work to minimize differences in placements and curing
conditions. Apply curing compound as soon as forms are stripped.
E.
Tilt-Up Concrete: Schedule work to minimize differences in time that panels remain on
casting slab to minimize differences in curing conditions. Apply curing compound to panels
as soon as they are put into place.
PART 2 PRODUCTS
2.1
2.2
MANUFACTURERS
A.
Acceptable Manufacturer: L. M. Scofield Company, which is located at: 4155 Scofield Rd.;
Douglasville, GA 30134; Toll Free Tel: 800-800-9900; Tel: 770-920-6000; Fax: 770-9206066; Email:request info (info@scofield.com); Web:www.scofield.com
B.
Substitutions: Not permitted.
C.
Requests for substitutions will be considered in accordance with provisions of Section
01600.
CONCRETE MIX DESIGN
A.
Minimum Cement Content: 5 sacks per cubic yard of concrete.
B.
Slump of concrete shall be consistent throughout Project at 4 inches or less. At no time shall
slump exceed 5 inches. If super plasticizers are allowed, slump shall not exceed 8-inches.
C.
Do not add calcium chloride to mix as it causes mottling and surface discoloration.
D.
Supplemental admixtures shall not be used unless approved by manufacturer.
E.
Do not add water to the mix in the field.
F.
Add colored admixture to the mix according to manufacturer's written instructions in
premeasured bags, not by weight of cement content.
03360-3
2.3
2.4
MATERIALS
A.
Colored Admixture for Integrally Colored Concrete: CHROMIX P Admixture and CHROMIX
ML.
1.
Description: Colored, water-reducing admixture with lime proof and UV resistant
coloring agents. Contains no calcium chloride.
2.
Conformance: ACI 303.1, ASTM C979, ASTM C494, and AASHTO M194.
B.
Antiquing Release Agent: Lithochrome Antiquing Release; Ready to use, dry-shake
hardener for freshly placed concrete hardscapes or floors.
C.
LITHOTEX Pavecrafters imprinting tools
D.
Curing Compound for Integrally Colored Concrete: Complying with ASTM C 309 and of
same manufacturer as colored admixture.
1.
Exterior Integrally Colored Concrete: Lithochrome Colorwax.
2.
Interior Integrally Colored Concrete: Colorcure Concrete Sealer.
E.
Curing and Sealing Compound for Integrally Colored Concrete: Complying with ASTM C 309
and of same manufacturer as colored admixture.
1.
Component 1: Cureseal-W.
a.
Finish: Semi-gloss.
b.
Finish: Gloss.
2.
Component 2: Cureseal-S.
a.
Finish: Gloss.
b.
Finish: Matte.
COLORS, FlNlSHES AND PATTERNS
A.
Concrete Color:
1.
Cement: gray.
2.
Cement: white.
3.
Sand: locally available natural sand.
4.
Sand: manufactured white sand.
5.
Sand: To match sample provided.
6.
Aggregate: Concrete producer's standard aggregate complying with specifications.
B.
Stamp/Imprinting Pattern:
1.
As selected from Scofield LITHOTEX Pavecrafters pattern sheets.
C.
Powder Antiquing Release Agent:
1.
As selected from manufacturer's standard colors.
D.
Curing Compound: Color to match colored concrete.
E.
Texture: Uniform, slip resistant surface.
1.
Finish: Broomed.
2.
Finish: Swirl.
3.
Finish: Sandblasted.
4.
Finish: __________.
F.
CHROMIX Integral Color:
1.
Color: 0288 Autumn Beige
2.
Color: 1010 Brownstone
3.
Color: 1014 Canyon Tan
4.
Color: 1015 Etruscan Tile
5.
Color: 1017 Barcelona Brown
03360-4
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
Color: 1019 Bridgeport Beige
Color: 1078 Chicory Spice
Color: 1266 Cool Gray
Color: 1589 Durango Brown
Color: 1677 Eldorado Tan
Color: 1734 English Rose
Color: 1906 Fennel Green
Color: 1967 Fiesta Red
Color: 3172 Moonlight Gray
Color: 3237 Musky Mulberry
Color: 3292 Navajo Red
Color: 3410 Nutmeg Brown
Color: 3987 Porcelain Gray
Color: 4302 Roman Tile
Color: 4662 Santa Fe Tile
Color: 4821 Shady Red
Color: 4959 Smoky Plum
Color: 5059 Sorrento Red
Color: 5130 Spring Beige
Color: 5178 Stetson Buff
Color: 5234 Summer Beige
Color: 5238 Sunbaked Clay
Color: 5265 Surrey Beige
Color: 5402 Taos Taupe
Color: 5460 Timberline Tan
Color: 6063 Winter Beige
Color: 6213 Golden Maize
Color: C-11 Desert Sand
Color: C-12 Mesa Beige
Color: C-13 Tawny Pink
Color: C-14 French Gray
Color: C-15 Coachella Sand
Color: C-20 Limestone
Color: C-21 Adobe Tan
Color: C-22 Coral Red
Color: C-24 Charcoal
Color: C-25 Sombrero Buff
Color: C-26 Antique Cork
Color: C-27 Westwood Brown
Color: C-29 Dusty Mauve
Color: C-31 Shadow Slate
Color: C-32 Quarry Red
Color: C-34 Dark Gray
PART 3 EXECUTION
3.1
3.2
EXAMINATION
A.
Do not begin installation until substrates have been properly prepared.
B.
If substrate preparation is the responsibility of another installer, notify Architect of
unsatisfactory preparation before proceeding.
PREPARATION
A.
Clean surfaces thoroughly prior to installation.
03360-5
3.3
3.4
3.5
B.
Prepare surfaces using the methods recommended by the manufacturer for achieving the
best result for the substrate under the project conditions.
C.
Protect adjacent surfaces with plastic sheeting during color hardener application.
CONCRETE FINISH
A.
Sandblasted Finish: Allow concrete to cure to sufficient strength that it will not be damaged
by blasting but not less than seven days. Provide surface to match originally approved
mockup.
B.
Broomed: Pull broom across freshly floated or troweled concrete to produce required texture.
Do not dampen brooms. Provide surface to match originally approved mockup. Texture shall
be:
1.
Fine texture.
2.
Medium texture.
3.
Coarse texture.
4.
Provide in straight lines perpendicular to main line of traffic.
5.
Provide in wavy lines perpendicular to main line of traffic.
C.
Swirl: Float concrete. Work float flat on surface using pressure in swirling manner to produce
series of uniform arcs and twists. Provide surface to match originally approved mockup.
1.
Use aluminum or magnesium float to produce medium texture.
2.
Use wood float to provide coarse texture.
D.
Trowel: Surface shall be uniformly troweled so that it will not be slippery. Do not over-trowel
or burnish the surface.
E.
Rock Salt: Float, trowel, or broom concrete and sprinkle salt on concrete and press into
surface leaving only tops of salt grains exposed. After 24 hours, wash salt away with water
and brush. Allow surface and impressions to dry before applying curing compound.
F.
Sandblast: Allow concrete to cure to sufficient strength so that it will not be damaged by
blasting but not less than seven days. Use sandblasting to remove cement mortar from
surface and expose aggregate to match originally approved mockup.
G.
Exposed Aggregate: Finish concrete and apply chemical surface retarder according to
manufacturer's written instructions. Wash surface to match originally approved mockup.
CURING COMPOUND APPLICATION
A.
Integrally Colored Concrete: Apply compound for integrally colored concrete according to
manufacturer's instructions using manufacturer's recommended application techniques.
Apply compound at consistent time for each pour to maintain close color consistency.
B.
Curing compound to be the same color as the colored concrete and supplied by same
manufacturer of the colored admixture.
C.
Precautions must be taken in hot weather to prevent plastic cracking resulting from
excessively rapid drying at surface as described in CIP 5Plastic Shrinkage Cracking
published by the National Ready Mixed Concrete Association.
D.
Do not cover concrete with plastic sheeting.
PROTECTION
A.
Protect installed products until completion of project.
03360-6
B.
Touch-up, repair or replace damaged products before Substantial Completion.
END OF SECTION
03360-7