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

Show the stresses during pile driving, Q. Show the Stresses during pile dri...

Q. Show the Stresses during pile driving? Stresses during pile driving In pile driving operation, proper selection of piling hammers is necessary to prevent the damage of

Fundamental of physics, state and prove Heisenberg uncertainity principle?

state and prove Heisenberg uncertainity principle?

Explain the soil texture and soil structure, (a) Explain the 'Soil Texture'...

(a) Explain the 'Soil Texture' and 'Soil structure'. What are the various terms used to explain the above properties of the soil? (b) A clay sample having natural moisture conte

Heat and work, How to prove that heat and work are the path functions?

How to prove that heat and work are the path functions?

Formation of pedestrian level winds around buildings, Q. Formation of pedes...

Q. Formation of pedestrian level winds around buildings? When a building blocks the wind blowing across it, part of the wind will escape over the top of the building. Some will

Temporary repairs to rail fracture, Q. Temporary Repairs to rail fracture? ...

Q. Temporary Repairs to rail fracture? If a welding party is not readily available, the fracture shall be repaired by using a cut-rail (not less than 4 meter long) and clamped/

Determine the loss in post-tensioned members, Determine the Loss in post-te...

Determine the Loss in post-tensioned members This loss occurs only in post-tensioned members. There always exists a certain amount of friction in the jacking and anchoring syst

Explain the swell factor of soil, Explain the Swell Factor of Soil A so...

Explain the Swell Factor of Soil A soil's swell factor represents the fact that the volume of soil placed by nature in the ground is not the same as the volume of the same mass

Calculate equivalent uniform annual cost for the excavator, Calculate Equiv...

Calculate Equivalent Uniform Annual Cost for the Excavator An earthwork contractor is considering the purchase of a new excavator.  Based on 10% interest, the equivalent unifor

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