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

Machanics, write a short on vector representation of force(addition and sub...

write a short on vector representation of force(addition and substraction )

What do you mean by plain elastomeric pads, Q. What do you mean by Plain el...

Q. What do you mean by Plain elastomeric pads? Plain pads are used for light or moderate loadings. Plain pads have a tendency to bulge under heavy loadings. In order to reduce

Differences between open shield and closed shield, Q. Differences between o...

Q. Differences between open shield and closed shield? Open shield type TBM refers to those providing lateral support only. They can be further classified into single shield and

Determine the statements about unit area or borrow pit, Determine the State...

Determine the Statements about Unit Area or Borrow Pit? Ans: I.  Sometimes called Average Depth II. Works well for volumes for building sites and surface mines III. Needs

Chapter 9, define of window pivoted

define of window pivoted

Define the predominant factor in atmospheric corrosion, Define the Predomin...

Define the Predominant factor in atmospheric corrosion? The predominant factor in atmospheric corrosion in areas located above splash zone is moisture as there is an excess ava

Calculate the uniformly distributed load, Given: pretensioned rectangula...

Given: pretensioned rectangular beam b=6" h=20" f'c=4000psi f'ci=3000psi fti=.165ksi fts=.38ksi fci=1.8ksi fcs=1.8ksi R=0.80 Required: (a)Pi and e to maximize Md+

Survey, how can find forebearing

how can find forebearing

Purpose of the gap in the road on this bridge, What is the purpose of the g...

What is the purpose of the gap in the road on this bridge? Ans) Purpose of the gap in the road is to permit the road to expand and contract with temperature alters without causi

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