Materials for Civil and Construction Engineers (4th Edition)
4th Edition
ISBN: 9780134320533
Author: Michael S. Mamlouk, John P. Zaniewski
Publisher: PEARSON
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Chapter 8, Problem 8.5QP
a)
To determine
The gross area compressive strength.
b)
To determine
The net area compressive strength.
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A half-block concrete masonry unit is subjected to compression until failure.The outside dimensions of the specimen are 190 mm X 190 mm X 190 mm.The cross section is a hollow square with a wall thickness of 38 mm. The loadis applied perpendicular to the hollow cross section and the maximum loadis 296 kN.a. Determine the gross area compressive strength.b. Determine the net area compressive strength.
A half-block concrete masonry unit is subjected to compression until failure.The outside dimensions of the specimen are 190 mm * 190 mm * 190 mm.The cross section is a hollow square with a wall thickness of 38 mm. The loadis applied perpendicular to the hollow cross section and the maximum loadis 296 kN.a. Determine the gross area compressive strength.b. Determine the net area compressive strength.
A hollow concrete masonry unit has an actual gross dimension of 150mm x 200mm x 400mm (width x height x length). The net volume is 10,000,000 mm3. Calculate;
the gross area compressive
the net area compressive strength
Chapter 8 Solutions
Materials for Civil and Construction Engineers (4th Edition)
Ch. 8 - Prob. 8.1QPCh. 8 - Prob. 8.2QPCh. 8 - Prob. 8.3QPCh. 8 - Prob. 8.4QPCh. 8 - Prob. 8.5QPCh. 8 - Prob. 8.6QPCh. 8 - Prob. 8.7QPCh. 8 - Prob. 8.8QPCh. 8 - Prob. 8.9QPCh. 8 - Prob. 8.10QP
Ch. 8 - Prob. 8.11QPCh. 8 - A portion of a medium-weight concrete masonry unit...Ch. 8 - A portion of a concrete masonry unit was tested...Ch. 8 - A concrete masonry unit was tested according to...Ch. 8 - Prob. 8.15QPCh. 8 - Prob. 8.16QPCh. 8 - A severe weathering clay brick was tested for...Ch. 8 - Prob. 8.18QPCh. 8 - What is the grout? What is the grout used for?Ch. 8 - Prob. 8.20QP
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- A half-block concrete masonry unit is tested for compressive strength. The outside dimensions of the specimen are 7.5 in × 7.5 in × 7.5 in. The cross section is a hollow square with a wall thickness of 1 inch. The load is applied perpendicular to the hollow cross section and the maximum load is 51 kips. Determine the gross area compressive strength. Determine the net area compressive strength.arrow_forwardWhat is the value of the Whitney stress block parameter, β1, for 6000 psi concrete?arrow_forwardEstimate the modulus of elasticity and the shear modulus of a concrete specimen with a dry density of 150 pcf (2400 kg/m3) and compressive strength of 4500 psi (31MPa) using Poisson’s ratio, ? =0.18.arrow_forward
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