EBK MATERIALS FOR CIVIL AND CONSTRUCTIO
4th Edition
ISBN: 8220102719569
Author: ZANIEWSKI
Publisher: PEARSON
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Textbook Question
Chapter 7, Problem 7.9QP
Design the concrete mix according to the following conditions:
Design Environment
Pavement slab, Bozeman, Montana (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 = 2.8%
Oven-dry rodded density = 120 pcf
Moisture content = 1%
Fine aggregate: Natural sand
Bulk oven-dry specific gravity = 2.540, absorption = 3.4%
Moisture content = 4.5%
Fineness modulus = 2.68
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Chapter 7 Solutions
EBK MATERIALS FOR CIVIL AND CONSTRUCTIO
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