Soil compaction, Civil Engineering

Assignment Help:

Soil Compaction:

Soils used in road construction need to be thoroughly rolled and compacted. Compaction of soil is needed for the following reasons.

(a) A well compacted soil does not undergo settlement under traffic,

(b) a well compacted soil has greater strength and thus a pavement constructed on such layers requires less thickness, and

(c) a well compacted soil is less susceptible to changes in moisture content, and thus the volumetric changes like swelling and shrinkage are minimised.

The density to which a soil can be compacted depends upon :

(a) the type of the soil

(b) the moisture content

(c) the compactive effort

Soils like clay can be compacted to a lower density than soils like sand and gravel.

The amount of moisture in a soil influences the density to which it can be compacted. It has been found that for a given soil and a given compactive effort there is one moisture content, called the optimum moisture content (OMC) at which the maximum dry density (MDD) is obtained. This is shown in Figure.

246_Soil Compaction.png

Figure: Moisture-Density Relationship


Related Discussions:- Soil compaction

Analyse the state of stress at the critical section, Analyse the state of s...

Analyse the state of stress at the critical section: A prismatic bar of circular section with 80 mm diameter is subjected to bending moment of 5 kN-m and a torque of 7 kN-m. A

Main function of followers in driven h-piles, Question What is main fun...

Question What is main function of followers in driven H-piles ? Answer A follower is an extension between pile head and hammers which transfers blow to pile in which

Cantilever beam, can i use lockfix to making cantilever beam

can i use lockfix to making cantilever beam

Explain the bernoulli energy equation, Explain the Bernoulli Energy Equatio...

Explain the Bernoulli Energy Equation Accounts for the fluid energy at any point in a fluid flow system. Units are in ft. Developed for energy without friction. The total energ

Wrecked trusses and types of damages, Evaluation of various reports regardi...

Evaluation of various reports regarding the effects of earthquake on spatial trusses Types of damages According to the different types of damages, wrecked trusses can be d

Designing of access ramps for drainage channels, Question Designing of ...

Question Designing of access ramps for drainage channels, why must direction of access ramps is sloping down on the way to downstream ? Answer In designing of access

Fluids, FLUID substance which deforms continuously when subjected to a shea...

FLUID substance which deforms continuously when subjected to a shear stress  LIQUID no fixed shape deforms under gravity to container shape virtually incompressible = const

Compression members, Compression Members: Compression members in steel...

Compression Members: Compression members in steel need special care in design. Steel possesses high strength in tension/compression; hence the sections are generally small com

Geotechnical engineering, Explain coulomb''s wedge theory-definition and de...

Explain coulomb''s wedge theory-definition and derivation

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd