1.1 RELATED DOCUMENTS

Provisions established within the General and Supplementary Conditions of the Contract, Division 1 - General Requirements, and the Drawings are collectively applicable to this Section.

1.2 SECTION INCLUDES

A.   Special requirements for PolishedCrete polished Concrete Process, [PolishedCrete, 4179 Business Center Drive, Fremont, California 94566. (800) 351-6020].  PolishedCrete installation by Bay Area Concretes, Inc. (510-651-6020).

B.   Special requirements for integrally colored, polished and architectural cast-in-place concrete, as installed by Bay Area Concretes, Inc., 4179 Business Center Drive, Fremont, CA 94538.  (510-651-6020) Attention Michael Price

C.   Integral coloration Color Tech – E, as provided by QC Construction Products, Madera, CA.  Contact QC Manufacturers Representative George Lee @ 925-439-0879.

1.3 RELATED SECTIONS

A.    Section 03100 - Concrete Formwork.

B.  Section 03200 - Concrete Reinforcement.

C.  Section 03300 - Cast-in-place Concrete.

1.4 SUBMITTALS

A.      Submit under provisions of Section 01300.

B.      Indicate formwork shop drawings, including pertinent dimensions, materials, and arrangement of joints, reinforcing, and ties.

C.      Samples:

1.      Submit two (2) 12-inch by 12-inch by 1-inch-thick samples showing required PolishedCrete finish using integral colored design mix proposed for finished work.

2.   Sample will be approved for appearance, color, and texture.

D.      Forward two (2) copies of design mixes and cylinder break certifications for each type of concrete to Architect for review at least ten (10) days prior to need.

1.5 FIELD SAMPLES

A.      Prepare field samples under provisions of Section 01300 and coordinate with Section 03300. Locate where directed.

B.   36" x 36" x 4” thickness Size panel to indicate special treatment and finish required.

C.   Use specified QC integrally colored concrete in utilizing minimum concrete order size of 3 yards. This will help with color quality control.

D.      Obtain acceptance of surface finish.

E.      Maintain sample panel exposed to view for duration of concrete work. Remove when directed.

1.6 QUALITY ASSURANCE

A.      Perform work in accordance with ACI 301, 303, 304, 305, 306, and 309.

B.      Obtain materials from same source throughout job.

C.      Batch plant shall be able to show a minimum of five (5) years experience in batching concrete. If required, plant shall furnish a list of similar sized jobs or special condition jobs performed during the last two (2) years.

1.7 REGULATORY REQUIREMENTS

Conform to applicable building code.

1.8 TESTS

Testing, monitoring, and analysis of concrete will be performed under provisions of Section 01400 [if any].

1.9 COORDINATION

A.      Notify appropriate trades of concrete pour and polishing schedules to allow adequate time for installation of complementary trade work.

B.      From material supplier, obtain anchor bolts / other steel items to be cast into concrete.

C.       With appropriate trades, coordinate size and location of mechanical equipment concrete pads.

1.10 DELIVERY, STORAGE AND HANDLING

A.      Deliver, store and handle materials in accordance with the requirements of Section 01610 and 01600.

B.   Mix and deliver concrete to project ready-mixed in accordance with ASTM C94.

C.      Schedule delivery so that continuity of any pour will not be interrupted for over 30 minutes.

2.1 CONCRETE MATERIALS

A.      Cement:

1.      ASTM Cl50, Type I or III (as determined by project conditions), grey color.

2.   Use only one brand, type and source of cement for entire Project.

B.      Aggregate:

1.      General:

a.      Provide fine and coarse aggregate for each type finish from one source for entire Project.

b.       Provide fine and coarse aggregate of color range and gradation to match approved samples.

2.      Fine aggregate: ASTM C33.

a.       Manufactured sands from coarse aggregate or dust-free, silt-free, salt-free natural sand.

b.       Restrict deleterious reactive materials with alkalis in cement per ASTM C33.

3.      Coarse aggregate:

a.      Normal weight aggregate: ASTM C33.

b.       Lightweight aggregate: ASTM C330.

c.      [Provide special mix, gradation, and color[s] as follows:]

C.      Water: clean, fresh and potable.

D.      Admixtures:

1.      Only use admixtures, which have been tested and accepted in, mix designs.

2.   Air Entrainment: ASTM C260.

E.      Integral Coloring Admixture:

1.   Integral Color by QC Construction Products, synthetic oxide pigment, meeting ASTM C979, [C494], ISO 9002, one (1) bag per yard in [specify color].  [Color to match Architect's sample.  Color to be selected by architect/owner from manufacturer's available standard and custom colors]. Not to exceed QC Construction Products pricing group [specify pricing group].

2.   Calcium chloride and admixtures containing chloride ions or other salts are not permitted.

2.2 CONCRETE POLISHING MATERIALS

A.      Polishing / Hardening / Densifier agent: PolishedCrete HG-Densifier, no known equal. [Available through PolishedCrete, 4179 Business Center Dr. Fremont, CA 94538 (800) 351-6020], as installed by Bay Area Concretes, Inc. 510-651-6020.

B.       Finish / Stain Resist agent: PolishedGuard, no known equal. [Available through PolishedCrete, 4179 Business Center Dr. Fremont, CA 94538 (800) 351-6020], as installed by Bay Area Concretes, Inc. 510-651-6020.

C.      Diamond Pads: #30, #60, #120, #220, #400, #800, #1500, as conditions dictate, or equal. [Available through PolishedCrete, 4179 Business Center Dr. Fremont, CA 94538 (800) 351-6020], as installed by Bay Area Concretes, Inc. 510-651-6020.