Soil compaction, Civil Engineering

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

Posted Date: 1/22/2013 2:49:06 AM | Location : United States







Related Discussions:- Soil compaction, Assignment Help, Ask Question on Soil compaction, Get Answer, Expert's Help, Soil compaction Discussions

Write discussion on Soil compaction
Your posts are moderated
Related Questions
how it different from hot mix asphalt . is it changes any performance compared to hot mix asphalt

Specific Gravity & Water Absorption of Fine Aggregate

pert disadvantages of software support, datacollection , interpretation of results issues

Maximum shear stress - state of stress: Consider the state of stress. (a) According to principal stress theory the equivalent stress for this case is simply σ 1 , i.e. 300

Q. Purpose of tar in bituminous materials? Tar is usually incorporated in bituminous materials due to the below reasons: (i)  Blending of tar with bitumen possesses better b

introduction of levelling

draw the shear force and bending moments of a beam

can u help with assignment and how much per assignment

Define Fathometer with the odolite - Sounding/Sensing Devices? The horizontal scale problem in use of Fathometer can be solved by using equipment, which combines a Fathometer w

how to calculate distance for radial contour