BuyFindarrow_forward

Principles of Geotechnical Enginee...

9th Edition
Braja M. Das + 1 other
ISBN: 9781305970939

Solutions

Chapter
Section
BuyFindarrow_forward

Principles of Geotechnical Enginee...

9th Edition
Braja M. Das + 1 other
ISBN: 9781305970939
Textbook Problem

Calculate the zero-air-void unit weights (lb/ft3) for a soil with Gs = 2.66 at moisture contents of 7, 11, 15, 19, and 23%.

To determine

Find the zero–air–void unit weights for a soil at different moisture contents.

Explanation

Given information:

The specific gravity of soil Gs is 2.66.

The various water contents of the soil (w) are 7 %, 11 %, 15 %, 19 %, and 23 %.

Calculation:

Determine zero–air–void unit weight for a soil at 7 % moisture content using the relation.

γzav=Gsγw1+Gsw

Here, γw is the unit weight of water.

Substitute 2.66 for Gs, 62.4lb/ft3 for γw, and 7 % for w.

γzav=2.66×62.41+2.66×7100=139.9lb/ft3

Therefore, the zero–air–void unit weight for a soil at 7 % moisture content is 139.9lb/ft3_.

Determine zero–air–void unit weight for a soil at 11 % moisture content using the relation.

γzav=Gsγw1+Gsw

Substitute 2.66 for Gs, 62.4lb/ft3 for γw, and 11 % for w.

γzav=2.66×62.41+2.66×11100=128.4lb/ft3

Therefore, the zero–air–void unit weight for a soil at 11 % moisture content is 128.4lb/ft3_.

Determine zero–air–void unit weight for a soil at 15 % moisture content using the relation.

γzav=Gsγw1+Gsw

Substitute 2.66 for Gs, 62.4lb/ft3 for γw, and 15 % for w

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Engineering Solutions

Find more solutions based on key concepts

Show solutions add

Determine the spring constant for Example 8.1 if the system is to oscillate with a natural frequency of 5 Hz.

Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)

What is US-CERT and what does it do?

Fundamentals of Information Systems

Give an example of each of the three types of relationships.

Database Systems: Design, Implementation, & Management

What is an apprenticeship?

Precision Machining Technology (MindTap Course List)

Do you think this attack was the result of a virus or a worm? Explain your answer.

Principles of Information Security (MindTap Course List)

What determines the exact temperature of the shielded metal welding arc?

Welding: Principles and Applications (MindTap Course List)

Define the term, cloud storage. Describe the types of services offered by cloud storage providers.

Enhanced Discovering Computers 2017 (Shelly Cashman Series) (MindTap Course List)