Principles of Foundation Engineering (MindTap Course List)
9th Edition
ISBN: 9781337705028
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 5, Problem 5.1P
To determine
Show that the compactive energy in method C is
Expert Solution & Answer
Explanation of Solution
Given information:
The mold volume (V) is
Mass of the hammer (m) 4.54 kg.
The hammer drop height (h) is 457.2 mm.
The number of layers of compaction (N) is 5.
The number of blows per layer is 56.
Calculation:
Determine the energy per blow.
Determine the total energy imparted to the soil in the mold.
Determine the energy per unit volume.
Therefore, the compactive energy in method C is
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
The nominal compactive effort (NCE) used for standard proctor test is
600 kJ/m3
300 kJ/m3
6000 kJ/m3
1000 kJ/m3
Following is the result of 8 trials of a standard proctor test. Determine the optimum water content and maximum dry unit weight.Determine also the amount of energy expended in the compaction of one of the trialsassuming that the test done is standard proctor test.
1. Draw the compaction curve using the following given data from a standard Proctor test.
2. From the compaction curve you drawn, determine the Optimum Moisture Content and the Maximum Dry Unit Weight.
Chapter 5 Solutions
Principles of Foundation Engineering (MindTap Course List)
Knowledge Booster
Learn more about
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
- The three most important factors that affect compaction are: a) Project Budget b) Construction Schedule C) Compactive Effort d) Material Gradiation e) Moisture contentarrow_forwardThe results of a standard Proctor test are given in the following table. Determine the maximum dry unit weight of compaction and the optimum moisture content. Also determine the moisture content required to achieve 95% of γd(max). Calculate and plot the 80% and 100% saturation lines.arrow_forwardThe results of a standard Proctor test are given in the following table. Determine the maximum dry unit weight of compaction and the optimum moisture content. Also determine the moisture content required to achieve 90% of ꙋd (max).arrow_forward
- Enlist all the equipment used for compaction of subgrade, base and sub-base along with their efficiencies and also explain how will we check the compaction of base and sub-base layer at site?arrow_forwardIf the soil in the field is initially at a degree of saturation of 53 percent, and is wetted until it reachesS = 80 percent. How math the swilling in the field will be. ?arrow_forwardFor a granular soil, the following are given:●● Gs = 2.6●● Liquid limit on the fraction passing No. 40 sieve 5 20●● Percent retained on No. 4 sieve 5 20 Using Eqs. (5.4) and (5.5) attached , estimate the maximum dry density of compaction and the optimum moisture content based on the modified Proctor test.arrow_forward
- A Soils laboratory technician carries out a standard Proctor test on an SP-type soil and observes, at low water content, a decrease in unit weight with increase in water content.Why does this occur? Plot the compaction curve you expect to be derived from this test. How should the technician proceed, and with what aim?arrow_forwardA Soils laboratory technician carries out a standard Proctor test on an SP-type soil and observes, at low water content, a decrease in unit weight with increase in water content. Why does this occur? Plot the compaction curve you expect to be derived from this test. How should the technician proceed, and with what aim?arrow_forwardA settling basin is designed based on a surface overflow rate that can achieve a removal efficiency of 80% for silt particles with a representative diameter of 0.10 mm. What removal efficiency could the basin achieve approximately when treating silt particles of 0.05 mm in diameter?arrow_forward
- How does the dry unit weight, differ from the unit weight ? Why is the Proctor method of assessing soil compaction based on the dry unit weight and not the unit weight?arrow_forwardHow would you check that the design compaction is achieved in the field?arrow_forwardA sample o f soi l compacte d accordin g t o a standar d Proctor test ha s a unit weight of 130.9 lb/ft 3 at 100 % compaction and at optimum water content o f 14% . What is the dryunit weight? If the voids become fille d with water what would be the saturated unit weight?Assume Gs = 2.67.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Foundation Engineering (MindTap Cou...Civil EngineeringISBN:9781337705028Author:Braja M. Das, Nagaratnam SivakuganPublisher:Cengage LearningFundamentals of Geotechnical Engineering (MindTap...Civil EngineeringISBN:9781305635180Author:Braja M. Das, Nagaratnam SivakuganPublisher:Cengage Learning
Principles of Foundation Engineering (MindTap Cou...
Civil Engineering
ISBN:9781337705028
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Cengage Learning
Fundamentals of Geotechnical Engineering (MindTap...
Civil Engineering
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Cengage Learning