Design Environment Pavement slab, Baguio City (severe cold climate) Required design strength = 3000 psi Slab thickness = 12 in. Statistical data indicate a standard deviation of compressive strength of 250 psi is expected (more than 30 samples). Only air entrainer is allowed. Available Materials: Air entrainer: Manufacture specification is 0.15 fl oz/1% air/100 lb cement. Coarse aggregate: 2 in. nominal maximum size, crushed stone Bulk oven-dry specific gravity = 2.573 Absorption = 0.1% Oven-dry rodded density = 120 pcf Moisture content = 1% Fine aggregate: Natural sand Bulk oven-dry specific gravity = 2.54 Absorption = 0.2% Moisture Content = 3.67% Fineness modulus = 2.68 Find the following requirements: Required Compressive Strength Water-Cement Ratio Coarse Aggregate Requirement Check Aggregate Size Air Content (Use Maximum) Slump (Use Maximum) Water Content Cement Requirement Admixture Fine Aggregate Requirement Final Batch Quantities (Adjusted Summary
Design Environment
Pavement slab, Baguio City (severe cold climate)
Required design strength = 3000 psi
Slab thickness = 12 in.
Statistical data indicate a standard deviation of compressive strength of
250 psi is expected (more than 30 samples).
Only air entrainer is allowed.
Available Materials:
Air entrainer: Manufacture specification is 0.15 fl oz/1% air/100 lb cement.
Coarse aggregate: 2 in. nominal maximum size, crushed stone
Bulk oven-dry specific gravity = 2.573
Absorption = 0.1%
Oven-dry rodded density = 120 pcf
Moisture content = 1%
Fine aggregate: Natural sand
Bulk oven-dry specific gravity = 2.54
Absorption = 0.2%
Moisture Content = 3.67%
Fineness modulus = 2.68
Find the following requirements:
Required Compressive Strength
Water-Cement Ratio
Coarse Aggregate Requirement
Check Aggregate Size
Air Content (Use Maximum)
Slump (Use Maximum)
Water Content
Cement Requirement
Admixture
Fine Aggregate Requirement
Final Batch Quantities (Adjusted Summary
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