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

Perform a personal skills audit, Perform a Personal Skills Audit Your ...

Perform a Personal Skills Audit Your employer wishes you to become an effective and confident self-directed employee. With this in mind they have set you some tasks. These wil

Design volume of the aeration basin - sewer construction, Design volume of ...

Design volume of the aeration basin - sewer construction: Problem: What is the design volume of the aeration basin? Solution Assuming that 30% of the plant influe

Concrete structural members tensile stresses, Concrete structural members t...

Concrete structural members tensile stresses In concrete structural members tensile stresses act in a longitudinal direction. This is why, stretched tendons (hereafter, called

Physics, about lenses & mirrors for assignment

about lenses & mirrors for assignment

Dam details, how to prepare a project of final year

how to prepare a project of final year

Concrete pavement - thickness, Concrete Pavement: Thickness T...

Concrete Pavement: Thickness The thickness of concrete pavements is determined from the stresses induced due to loads and temperature. The thickness adopted is genera

Explain hardness - water softening, Explain Hardness - Water Softening ...

Explain Hardness - Water Softening 1) Hardness is used to characterize a water that does not lather well, causes a scum in the bath tub and leaves hard, white, crusty deposits

Disparity between working stress and limit state approach, Question Wha...

Question What is key disparity between working stress approach and limit state approach ? Answer Working stress approach, service loads are used in whole plan and st

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