Attachment_1_-_Specifications.pdf
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- Concrete & Aggregate Delivery BPA
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- FA4654-19-T-0002
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Concrete and Gravel Delivery
CONCRETE MIX DESIGN
Contractor-Furnished Mix Design
ACI 211.1, ACI 301, and ACI 318 ACI 304.2R except as otherwise specified. Indicate the compressive strength (f'c) of the concrete for each portion of the structure(s) as specified below.
Slab-on-Grade
Proportion normal-weight concrete mixture as follows:
a. Minimum Compressive Strength: 4000 psi at 28 days.
b. Maximum Water-Cementitious Materials Ratio: 0.45 .
c. Slump Limit: 4 inches or less.
d. Air Content: 5.5 percent, plus or minus 1.5 percent at point of delivery for 1-1/2 inch nominal maximum aggregate size.
e. Air Content: 6 percent, plus or minus 1.5 percent at point of delivery for 3/4 inch nominal maximum aggregate size.
f. Air Content: Do not allow air content of trowel-finished floors to exceed 3 percent.
APPENDIX D — INDOT COURSE AGGREGATE
SIZE SPECIFICATIONS
Sieve Sizes
Coarse Aggregate Sizes (Percent Passing)
Coarse Graded Dense Graded
2 5 8 9 11 12 431 91 531 731
4 in.
(100 mm)
3½ in.
(90 mm)
2½ in.
(63 mm)
2 in.
(50 mm)
80-100
1½ in.
(37.5 mm)
100 100 100
1 in.
(25 mm) 0-25 85-98 100 70-90 100 80-100 100
¾ in.
(19 mm)
0-10 60-85 75-95 100 50-70 70-90 90-100
½ in.
(12.5 mm) 0-7 30-60 40-70 60-85 100 100 35-50 55-80 60-90
3/8 in.
(9.5 mm) 15-45 20-50 30-60 75-95 95-100
No. 4 (4.75 mm) 0-15 0-15 0-15 10-30 50-80 20-40 35-60 35-60
No. 8 (2.36 mm)
0-10 0-10 0-10 0-10 0-35 15-35 25-50
No. 30 (600 �m) 0-4 5-20 12-30 12-30
No. 200 (75 �m)2 0-6 5-10 5-12
Notes:
1 The liquid limit shall not exceed 25 (35 if slag) and the plasticity index shall not exceed 5. The liquid limit shall be determined in accordance with AASHTO T 89 and the plasticity index in accordance with AASHTO T 90.
2 Includes the total amount passing the No. 200 (75 micrometers) sieve as determined by AASHTO T 11 and T 27.
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| Attachment 1 - Specifications |
| gradation |
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