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 7, Problem 7.34QP
To determine
The maximum load that can be applied to the given column.
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A short plain concrete column with dimensions of 300 mm * 300 mm *900 mm is to be constructed. If the compressive strength of the concrete is34.5 MPa, what is the maximum load that can be applied to this column usinga factor of safety of 1.2?
A short plain concrete column with dimensions of 300 mm X300
mm X 900 mm is to be constructed. If the compressive strength of
the concrete is
34.5 MPa, what is the maximum load that can be applied to this
column using
a factor of safety of 1.2?
A short plain concrete column with dimensions of 12 in. x 12 in. x 36 in. is to be constructed. If the compressive strength of the concrete is 5000 psi, what is the maximum load that can be applied to this column using a factor of safety of 1.2?
Chapter 7 Solutions
Materials for Civil and Construction Engineers (4th Edition)
Ch. 7 - The design engineer specifies a concrete strength...Ch. 7 - A project specifies a concrete strength of 24.1...Ch. 7 - A project specifies a concrete strength of at...Ch. 7 - What is your recommendation for the maximum size...Ch. 7 - A concrete mix with a 3-in. slump, w/c ratio of...Ch. 7 - Prob. 7.6QPCh. 7 - You are working on a concrete mix design that...Ch. 7 - Design the concrete mix according to the following...Ch. 7 - Design the concrete mix according to the following...Ch. 7 - The design of a concrete mix requires 1173 kg/m3...
Ch. 7 - Prob. 7.11QPCh. 7 - Prob. 7.12QPCh. 7 - Students in the materials lab mixed concrete with...Ch. 7 - Students in the materials lab mixed concrete with...Ch. 7 - Why is it necessary to measure the air content of...Ch. 7 - What do we mean by curing concrete? What will...Ch. 7 - Discuss five different methods of concrete curing.Ch. 7 - Draw a graph showing the typical relation between...Ch. 7 - Why is extra water harmful to fresh concrete, but...Ch. 7 - Discuss the change in volume of concrete at early...Ch. 7 - Discuss the creep response of concrete structures....Ch. 7 - Prob. 7.22QPCh. 7 - On one graph, draw a sketch showing the typical...Ch. 7 - Using Figure 7.34, a. Determine the ultimate...Ch. 7 - Three concrete mixes with the same ingredients,...Ch. 7 - Three concrete mixes with the same ingredients,...Ch. 7 - Three 100 mm 200 mm concrete cylinders with water...Ch. 7 - Students in the materials class prepared three 4 ...Ch. 7 - Three 150 mm 300 mm concrete cylinders with water...Ch. 7 - Three 6 in. 12 in. concrete cylinders with water...Ch. 7 - A normal-weight concrete has an average...Ch. 7 - Discuss the significance of the compressive...Ch. 7 - What is the standard size of PCC specimens to be...Ch. 7 - Prob. 7.34QPCh. 7 - What is the purpose of performing the flexure test...Ch. 7 - What are the advantages of using a third-point...Ch. 7 - Consider a standard flexural strength specimen of...Ch. 7 - To evaluate the effect of a certain admixture on...Ch. 7 - To evaluate the effect of a certain admixture on...Ch. 7 - Prob. 7.40QPCh. 7 - Prob. 7.41QPCh. 7 - A normal-weight concrete has an average...Ch. 7 - Three batches of concrete were prepared using the...Ch. 7 - Three batches of concrete were prepared using the...Ch. 7 - Prob. 7.45QPCh. 7 - Prob. 7.46QPCh. 7 - Discuss two nondestructive tests to be performed...Ch. 7 - Discuss the concept of concrete maturity meters.Ch. 7 - Discuss four alternatives that increase the use...Ch. 7 - What is self-consolidating concrete? How are its...Ch. 7 - Prob. 7.51QPCh. 7 - Two 6 in. 12 in. concrete cylinders with randomly...Ch. 7 - Discuss the concept of high-performance concrete....Ch. 7 - Comparing PCC with mild steel, answer the...Ch. 7 - Prob. 7.55QP
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- A short plain concrete column with dimensions of 300 mm X300 mm X 900 mm is to be constructed. If the compressive strength of the concrete is34.5 MPa, what is the maximum load that can be applied to this column usinga factor of safety of 1.2?arrow_forwardA short plain concrete column with dimensions of 12 in. * 12 in. * 36 in. is to be constructed. If the compressive strength of the concrete is 5000 psi, what is the maximum load that can be applied to this column using a factor of safety of 1.2?arrow_forwardthe last part is where I'm having trouble..arrow_forward
- Estimate the modulus of elasticity for concrete with a density of 120 lb/ft3 and a 28-day maximum compressive strength of 3500 psi.arrow_forwardWrite the parameters that affect the compressive strength of concrete.arrow_forwardA concrete cylinder (6 x 12 in.), cured according to ASTM C 511 (100% RH and 23 °C) and tested at an age of 28 days in compression according to ASTM C 39 with a load rate of 30 psi/sec, fails at a load of 98,342 lb. The unit weight of the concrete is 145 lb/ft3. What is the compressive strength of the concrete cylinder in lb/in2? Round to the nearest whole number and do not include units when entering your answer.arrow_forward
- What is the value of β1 if the compressive strength of concrete is 34 MPa? Round of your answer to two decimal places.arrow_forwardDiscuss the different types of concrete. a. Plain concrete vs reinforced concrete b. Fiber-reinforced concrete c. High-strength concrete d. Green concretearrow_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_forward
- Solution please.arrow_forwardThe design engineer specifies a concrete strength of 5500 psi. Determine the required average compressive strength for:a. a new plant where s is unknownb. a plant where s = 500 psi for 22 test resultsc. a plant with extensive history of producing concrete with s = 400 psid. a plant with extensive history of producing concrete with s = 600 psiarrow_forwardWrite discussion about Compressive strength of cube and Cylinder concrete specimens.arrow_forward
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