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

Return period for design situations, Question While design life will it...

Question While design life will it be same as return period for design situations ? Answer Design life means least duration a structure is accepted to last. Longe

Construction management, pert disadvantages of software support, datacolle...

pert disadvantages of software support, datacollection , interpretation of results issues

Determine the magnetic declination at a place, Example : Determine th...

Example : Determine the declination at a place, if at noon the magnetic bearing to the sun is (a) 358° (b) 185° Solution: (a) Referring to given figure (a) since the ma

Explain the erosion and sedimentation, Explain the Erosion and Sedimentatio...

Explain the Erosion and Sedimentation Erosion: Removal of soil or other channel material caused by the rapid movement of water over the channel surface. The removed material

Why is the statue of liberty made of copper, Copper is a very durable mater...

Copper is a very durable material when exposed to weather and is soft enough that it can be simply molded to curved shapes like those in the Statue of Liberty. It is also tradition

Centroid, how tofind centroid of cercular arc

how tofind centroid of cercular arc

Trigo, a pilot entering a bay on course

a pilot entering a bay on course

State the short term effects of concrete, State the Short Term Effects of c...

State the Short Term Effects of concrete These are various types of effects produced, nearly instantaneously, due to the application of external loads on structures. An example

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