Concrete is required for a foundation located below ground where no substantial freezing and thawing occur. The 28-day compressive strength should be 4,000 lb./in2. The slump should be 2in. and the maximum aggregate size should not exceed ¾ in. The properties of the materials are as follows: Cement : Type I, specific gravity = 3.15 Coarse Aggregate: Bulk specific gravity (SSD) = 2.82; absorption capacity = 3%; dry-rodded unit weight = 125 lb./ft.3; surface moisture = 1%, Moisture content = 4% Fine Aggregate: Bulk specific gravity (SSD) = 2.60; absorption capacity = 1.3%; fineness modulus = 2.70; surface moisture = 2% Moisture content = 3.3% 3. The total estimated batch weight in Ib/ft^3? 4. What is the estimated batch weight of cement in 1b/yd^3? 5. What is the estimated batch weight of wet coarse aggregates in Ib/yd^3?
Concrete is required for a foundation located below ground where no substantial freezing and thawing occur. The 28-day compressive strength should be 4,000 lb./in2. The slump should be 2in. and the maximum aggregate size should not exceed ¾ in.
The properties of the materials are as follows:
Cement : Type I, specific gravity = 3.15
Coarse Aggregate: Bulk specific gravity (SSD) = 2.82;
absorption capacity = 3%; dry-rodded unit weight = 125 lb./ft.3;
surface moisture = 1%, Moisture content = 4%
Fine Aggregate: Bulk specific gravity (SSD) = 2.60; absorption
capacity = 1.3%; fineness modulus = 2.70; surface moisture = 2%
Moisture content = 3.3%
3. The total estimated batch weight in Ib/ft^3?
4. What is the estimated batch weight of cement in 1b/yd^3?
5. What is the estimated batch weight of wet coarse aggregates in Ib/yd^3?
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