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 8.3QP
To determine
The shape of the concrete masonry, the compressive strength of the concrete masonry, and check for compressive strength against ASTM requirement.
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A concrete masonry unit is tested for compressive
strength and produces the following
results:
Failure load = 120 kips
Gross area = 130 in 2
Gross volume = 960 in 3
Net volume = 447 in 3
a) is this unit categorized as solid or hollow?
b) what is the compressive strength?
c) does the compressive strength satisfy the ASTM
requirements for load bearing units?
What is the permissible tensile strength of concrete , M150 ?
A concrete masonry unit is tested for compressive strength and produces thefollowing results:Failure load = 120,000 lbGross area = 130 in2Gross volume = 960 in3Net volume = 447 in3Is the unit categorized as solid or hollow? Why? What is the compressivestrength? Does the compressive strength satisfy the ASTM requirements forload bearing units shown in Table 8.2?
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- A concrete masonry unit is tested for compressive strength and produces the following results: Failure load = 120,000 lb Gross area = 130 sq.in Gross volume 960 cu. in Net volume = 447 cu.in Is the unit categorized as solid or hollow? Why? What is the compressive strength? Does the compressive strength satisfy the ASTM requirements for load bearing units shown? ... TABLE 8.2 Strength Requirements of Load Bearing and Non-Load- Bearing Concrete Masonry Units (Reprinted, with permission, from ASTM C90, Table 3 and C129, Table 2, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428) Minimum Compressive Strength Based on Net Area MPa (psi) Туре Average of Three Units Individual Units Load bearing 13.1 (1900) 11.7 (1700) Non-load-bearing 4.1 (600) 3.5 (500)arrow_forwardChapter 13 Question: What is the elasticity of concrete for a normal weight mix (unit weight equal to 150 pcf) with a compressive strength of 5,000 psi? O 3.644 ksi O 4.074 ksi 4,287 ksi O 3.976 ksi O 3,834 ksiarrow_forward10arrow_forward
- Write three aggregate properties that affect compressive strength of concrete.arrow_forwardA concrete masonry unit is tested for compressive strength and produces thefollowing results:Failure load = 726 kNGross area = 0.081 m2Gross volume = 0.015 m3Net volume = 0.007 m3Is the unit categorized as solid or hollow? Why? What is the compressivestrength? Does the compressive strength satisfy the ASTM requirements forload bearing units shown in Table 8.2?arrow_forwardA concrete masonry unit is tested for compressive strength and produces thefollowing results:Failure load = 726 kNGross area = 0.081 m2Gross volume = 0.015 m3Net volume = 0.007 m3Is the unit categorized as solid or hollow? Why? What is the compressivestrength? Does the compressive strength satisfy the ASTM requirements forload bearing units shown in Table 8.2?arrow_forward
- Write the parameters that affect the compressive strength of concrete.arrow_forwardA concrete masonry unit is tested for compressive strength and produces thefollowing results:Failure load = 726 kNGross area = 0.081 m2Gross volume = 0.015 m3Net volume = 0.007 m3Is the unit categorized as solid or hollow? Why? What is the compressivestrength? Does the compressive strength satisfy the ASTM requirements forload bearing units shown in Table 8.2?arrow_forwardEstimate the modulus of elasticity for concrete with a density of 120 lb/ft3 and a 28-day maximum compressive strength of 3500 psi.arrow_forward
- How is unit weight of concrete affected by its aggregates?arrow_forwardGive the relationship between the compressive, tensile and flexural stress of concrete in terms of percentage of strength.arrow_forwardDefine the importance of Selecting an appropriate value for the compressive strength, f'c , of concrete ?arrow_forward
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