Buffalo Wild Wings
Buffalo Wild Wings
Buffalo Wild Wings
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<strong>Buffalo</strong> <strong>Wild</strong> <strong>Wings</strong><br />
2.07 CONCRETE MIX DESIGN<br />
A. Prepare design mixtures for each type and strength of concrete, proportioned on the basis of<br />
laboratory trial mixture or field test data, or both, according to ACI 301.<br />
1. Use a qualified independent testing agency for preparing and reporting proposed mixture<br />
designs based on laboratory trial mixtures.<br />
2. Take care in developing mix designs to minimize curling and effects of casting directly on<br />
vapor retarder.<br />
3. Develop concrete mix designs for slabs on grade to minimize curling and other effects<br />
resulting from casting directly on vapor retarder sheet.<br />
B. Proportioning Normal Weight Concrete: Comply with ACI 211.1 recommendations.<br />
C. Admixtures: Add acceptable admixtures as recommended in ACI 211.1 and at rates<br />
recommended by manufacturer.<br />
D. Concrete Mix Properties:<br />
1. Structural Concrete:<br />
a. 28 day compressive strength: 3000 psi.<br />
b. Maximum aggregate size: 3/4 inch.<br />
c. Maximum slump: 3-5 inches.<br />
d. Maximum water/cement ratio: 0.5.<br />
2. Interior slab on grade:<br />
a. 28 day compressive strength: 4000 psi.<br />
b. Maximum aggregate size: 3/4 inch.<br />
c. Maximum slump: 3-5 inches.<br />
d. Maximum water/cement ratio: 0.5.<br />
3. Exterior concrete exposed to freeze-thaw cycles:<br />
a. 28 day compressive strength: 4000 psi.<br />
b. Maximum aggregate size: 3/4 inch.<br />
c. Maximum slump: 3-5 inches.<br />
d. Maximum water/cement ratio: 0.55.<br />
e. Entrained Air Content: 6±1%.<br />
4. Masonry Grout:<br />
a. 28 day compressive strength: 3000 psi.<br />
b. Maximum aggregate size: 3/8 inch.<br />
c. Maximum slump: 8-10 inches.<br />
2.08 MIXING<br />
A. Ready-Mixed Concrete: Measure, batch, mix, and deliver concrete according to<br />
ASTM C 94/C 94M, and furnish batch ticket information.<br />
B. Project Site Mixing: Measure, batch and mix in drum type batch mixer, according to ASTM C<br />
685. Mix each batch not less than 1-1/2 minutes and not more than 5 minutes.<br />
PART 3 EXECUTION<br />
3.01 EXAMINATION<br />
A. Verify lines, levels, and dimensions before proceeding with work of this section.<br />
3.02 PREPARATION<br />
A. Formwork: Comply with requirements of ACI 301. Design and fabricate forms to support all<br />
applied loads until concrete is cured, and for easy removal without damage to concrete.<br />
B. Verify that forms are clean and free of rust before applying release agent.<br />
C. Coordinate placement of embedded items with erection of concrete formwork and placement of<br />
form accessories.<br />
04-27-11 CAST-IN-PLACE CONCRETE<br />
03300 -4