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

State the modulus of elasticity of concrete, State the Modulus of Elasticit...

State the Modulus of Elasticity of Concrete The Young's modulus of elasticity of concrete is primarily influenced by the elastic properties of the aggregate and to a lesser ex

Marked., who invented the first LA abrasion test machine

who invented the first LA abrasion test machine

Brigdes, infomation about differnt brigdes

infomation about differnt brigdes

Calculate the ultimate bearing capacity of the footing, A continuous footin...

A continuous footing of width 2.5 m rests 1.5 m below the ground surface in clay. The unconfined compressive strength of the clay is 150 kN/m 2 . Measure the ultimate bearing ca

Use plain dumb-bell type and center-bulb sort, Question While selection...

Question While selection of waterstop, shall engineers use plain dumb-bell type , center-bulb sort ? Answer Plain dumb-bell kind is used for joint site where sm

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