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

Need Answer, EXPLAIN THE STRUCTURE OF EXOGENEOUS TREE WITH DIAGRAM ?

EXPLAIN THE STRUCTURE OF EXOGENEOUS TREE WITH DIAGRAM ?

What is rapid sand filter, Q. What is Rapid Sand Filter? A Rapid Sand F...

Q. What is Rapid Sand Filter? A Rapid Sand Filter is a water treatment plant that includes provision for pre treating the water by coagulation and sedimentation for settlement

Classification of timber based on availability:, Classification Based on Av...

Classification Based on Availability: Forest departments categorized timbers based on the availability as X=Most common. 1415 m 3 or more per year Y=Common. 355 m 3 to 1415

Corrosion protection of lifting anchors in precast concrete, Q. Corrosion p...

Q. Corrosion protection of lifting anchors in precast concrete? Corrosion of lifting anchors in precast concrete units has to be prevented since the corroded lifting units caus

Storm water drainage - Road drainage and maintenance, Storm Water Drainage:...

Storm Water Drainage: In city streets, the disposal of rain water has to be done through a system of underground storm water drains. The water is collected at the roadside ke

Poly tetra fluoro ethylene, Question Why Poly tetra fluoro ethylene (PTFE...

Question Why Poly tetra fluoro ethylene (PTFE) is usually used in sliding bearings? Answer The choice of sliding surface of bearings is of very important importance since slid

Define electrical tool for underwater inspection of bridge, Define Electric...

Define Electrical tool for underwater inspection of bridge? Electrical equipment like Rebar Scanner for scanning of rebars; underwater sonic and ultrasonic equipment for observ

Seive analysis, what is sieve analysis? expalin its procedure.

what is sieve analysis? expalin its procedure.

Concrete mix design for Volumetric site mix, Please advise what is the prop...

Please advise what is the proportion of mix to achieve 45N/sq. mm compressive strength with 370Kg.SR cement per cubic meter and 35N/Sq.mm strength with OPC cement 330 kg per cubic

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