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

Designing sewer pipes, Question While designing sewer pipes , why vitr...

Question While designing sewer pipes , why vitrified clay pipes commonly is used for pipe size less than 600mm still as precast concrete pipes with PVC lining is used for pipe

Simple stresses and strains, Simple stresses and strains: In this simp...

Simple stresses and strains: In this simple stresses and strains you have learnt the concepts of stress, strain, elastic modulus and the primary concepts in application to ana

Non destructive inspection steel/cast iron substructure, Explain the Non De...

Explain the Non Destructive Inspection Steel/Cast Iron Substructures Some of the structural defects in steel structures may not be visible during visual inspection. In that eve

Physical tests on cement, Physical Tests on Cement (a) Soundness Test: ...

Physical Tests on Cement (a) Soundness Test: by sieve analysis, it is conducted. 100 gms of cement is taken and sieved throughout IS sieve No. 9 for fifteen minutes. Residue on

Emulsified asphalts or cutback asphalts, Question Have to emulsified a...

Question Have to emulsified asphalts or cutback asphalts be selected as staple coat in bituminous road works? Answer Emulsified asphalt is a postponement of asphalt

Determine the size of the standpipe which should be used, A sample in a var...

A sample in a variable head permeameter is 8 cm in diameter and 10 cm high. The permeability of the sample is estimated to be 10 × 10 -4 cm/s. If it is desired that the head in th

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