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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Textbook Question
Chapter 7, Problem 7.16QP
What do we mean by curing concrete? What will happen if concrete is not cured?
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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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- ii. What is the curing process? Why do we cure the concrete?arrow_forwardWhy we need to know the Properties of Fine Aggregate and how it is important for concretearrow_forwardBriefly explain the carbonation process of concrete. Being a structural engineer, how you can reduce the rate of carbonation in concrete.arrow_forward
- What are the factors that affect the performance of concrete water tanks materials?arrow_forwardConcretearrow_forwardYou see the concrete looks dry as it is being placed as a slab. a) If you decide to spray some water on the surface before the concrete has set, what could happen to the concrete in terms of strength and any potential abnormalities/distresses? b) You decide to instead wait for the concrete to set, and then you decide spray water on the surface. What could happen to the concrete in terms of strength, shrinkage, density, and any potential distresses?arrow_forward
- 4 Chemically speaking, how does concrete/cement react with water, its chemical composition, etc.? How do the different additives in concrete work, such as retarders, plasticizers and accelerators?arrow_forwardWhat is the carbonization of concrete? How does thecarbonization of concrete influence the properties ofconcrete?arrow_forwardIn the context of concrete structures, what is shrinkage? How does it occur? Discuss the factors affecting the magnitude of shrinkage? Discuss the consequences of shrinkage in concrete structures and discuss the measures an engineer may take to minimize the effects due to shrinkage.arrow_forward
- Explain the reactions and results between raw materials in kilns in cement production.arrow_forward86. In civil engineering, what are the different types of concrete admixtures used?arrow_forward1. Concrete is the most commonly used construction material in the world. However,despite its success, this material is not environmentally friendly. Most of this problemcomes from the cement used in concrete.a) How does cement cause this problem?b) How can we address this issue without replacing concrete with otherconstruction materials?c) What do you think concretes of the future will be made of?arrow_forward
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What is Concrete?; Author: Practical Engineering;https://www.youtube.com/watch?v=UOHURuAf5iY;License: Standard Youtube License