EBK MATERIALS FOR CIVIL AND CONSTRUCTIO
EBK MATERIALS FOR CIVIL AND CONSTRUCTIO
4th Edition
ISBN: 8220102719569
Author: ZANIEWSKI
Publisher: PEARSON
Question
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Chapter 5, Problem 5.1QP
To determine

The three mineralogical or geological classifications and the formation of rocks.

Expert Solution & Answer
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Explanation of Solution

Natural aggregates result from the breakdown of large rock masses. Summarize the three basic types of rocks as below.

  • Igneous rocks
  • Sedimentary rocks
  • Metamorphic rocks

Explain the formation of rocks as below.

Igneous rocks:

The igneous rocks are produced as a result of volcanic action thr ough hardening or crystallizing molten material, namely magma. The magma cools with the expoure to air or water present within the earth’s crust. The extrusive igneous rocks forms over the surface and intrusive igneous rocks are formed with cooling beneath the ground surface. The extrusive rocks cool faster than the intrusive rocks.

Sedimentary rocks:

These rocks are based on the deposited mass of material with the help of wind, water, glaciers or direct transport of materials. It is formed from the deposits of disintegrated existing rocks or inorganic remains of marine animals. The particles bind together by natural cementing.

Metamorphic rocks:

The igneous or sedimentary rocks are formed though the process of disintegration inside the Earth’s crust with the exposiure to some form of heat and pressure. It will produce a grain structure of a metamorphic rock.

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Chapter 5 Solutions

EBK MATERIALS FOR CIVIL AND CONSTRUCTIO

Ch. 5 - Calculate the percent voids between aggregate...Ch. 5 - Calculate the percent voids between aggregate...Ch. 5 - Coarse aggregate is placed in a rigid bucket and...Ch. 5 - The following laboratory tests are performed on...Ch. 5 - Students in the materials lab performed the...Ch. 5 - The specific gravity and absorption test (ASTM...Ch. 5 - Prob. 5.18QPCh. 5 - Calculate the sieve analysis shown in Table P5.19...Ch. 5 - Calculate the sieve analysis shown in Table P5.20,...Ch. 5 - A sieve analysis test was performed on a sample of...Ch. 5 - A sieve analysis test was performed on a sample of...Ch. 5 - Draw a graph to show the cumulative percent...Ch. 5 - Referring to Table 5.6, plot the specification...Ch. 5 - Referring to the aggregate gradations A, B, and C...Ch. 5 - Table P5.26 shows the grain size distributions of...Ch. 5 - Table P5.27 shows the grain size distributions of...Ch. 5 - Three aggregates are to be mixed together in the...Ch. 5 - Table P5.29 shows the grain size distribution for...Ch. 5 - Laboratory specific gravity and absorption tests...Ch. 5 - Table P5.31 shows the grain size distribution for...Ch. 5 - Prob. 5.32QPCh. 5 - Laboratory specific gravity and absorption tests...Ch. 5 - Prob. 5.34QPCh. 5 - Define the fineness modulus of aggregate. What is...Ch. 5 - Calculate the fineness modulus of aggregate A in...Ch. 5 - Calculate the fineness modulus of aggregate B in...Ch. 5 - A portland cement concrete mix requires mixing...Ch. 5 - Discuss the effect of the amount of material...Ch. 5 - Aggregates from three sources having the...Ch. 5 - Aggregates from three sources having the...Ch. 5 - A contractor is considering using three stockpiles...Ch. 5 - Prob. 5.43QPCh. 5 - What are the typical deleterious substances in...Ch. 5 - Review ASTM D75 and summarize the following: a....
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