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

Calculate the resultant hydrostatic force, Five 1m diameter, 2m high cylind...

Five 1m diameter, 2m high cylindrical drums filled with earth are placed upright and side-by-side in a straight line across a 5m wide creek to form a simple dam completely blocking

Calculate the energy loss in the piping system, The head (energy) loss in t...

The head (energy) loss in the piping system between points 1 and 7 is the most nearly. Solution: 3 ft. The difference between point 1 and point 7 = 10 ƒt - 7 ƒt = 3 ƒt

What are the uses of groynes, They stop, or slow down erosion, and stop lon...

They stop, or slow down erosion, and stop long shore drift. This, though, can have bad knock-on effects somewhere near.

Main dissimilarity among cement plaster and cement render, Question Wha...

Question What is main dissimilarity among cement plaster , cement render and cement screed ? Under what state each of above can be used? Answer Purpose of plaster

Advantages of casings for mini-piles, Question Advantages of casings ...

Question Advantages of casings for mini-piles ? Answer Left-in casings for mini-piles have next advantages as follows- (i) recover resistance to corrosion of ma

Remedial measures for problems in turbid water - absorption, Define Remedia...

Define Remedial measures for Problems in Turbid Water - Absorption? The process of absorption of light can be overcome by using higher powered lighting, or by using more light

Explain the categories of air pollution, Explain the Categories of Air Poll...

Explain the Categories of Air Pollution 1. Ambient Air Pollution Out door environment o Involves complex array of sources and pollutants, meteorological transport of th

Explain brake and electrical horsepower, Explain Brake and Electrical Horse...

Explain Brake and Electrical Horsepower Brake horsepower (bhp) = whp/pump efficiency Electrical or motor horsepower (ehp) or (mhp) = bhp/motor efficiency Friction of heat

Roads construction in marshy land, precaution to be taken for roads constru...

precaution to be taken for roads construction in marshy land

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