Examples of stabilised pavement layers, Civil Engineering

Assignment Help:

Examples of Stabilised pavement layers:

Examples

  • Sand-clay mixture
  • Sand-gravel mixture
  • Soil-aggregate mixture
  • Soil-soft aggregate mixtures

(b)       Chemical stabilisation by addition of additives like lime, cement, lime and flyash, bituminous materials, etc.

Lime stabilisation is suited for clayey soil, the lime reacting with the minerals and developing cementitious gels. The quantity of lime varies from 2 to 10 percent by weight.

Cement stabilisation is suited for silty and sandy soils. The cement content varies from 3-15 per cent by weight.

Lime-flyash stabilisation is based on the fact that lime reacts with silica in the flyash and produces cementitious gels.

Bituminous materials are used for stabilizing fine sand. Sand-bitumen has been tried successfully on desert roads in India.

Generally, stabilised soils are used for improving the sub-grade and for sub-bases. Soil stabilised layers are also used as a base course for low-volume rural roads.


Related Discussions:- Examples of stabilised pavement layers

List the significant engineering classification system, How do you distingu...

How do you distinguish among clay and silt in the field? State the purpose of identification and categorization of soils. List any three significant engineering classification syst

Water retaining structure, Question Why do BS8007 specify permissible c...

Question Why do BS8007 specify permissible crack width of water retaining structure as 0.2mm for severe, extremely severe exposure? Answer For break width less than

Air pollution, chlorosis in plants is caused by

chlorosis in plants is caused by

Discuss about the term - end zone, Discuss about the term - End Zone It...

Discuss about the term - End Zone It is the length of a post-tensioned concrete member, at the end, which is required to get a distribution of prestress over the whole of the c

Importance of geotextiles and sand in reclamation works, Question What ...

Question What is main importance of geotextiles and sand in reclamation works? Answer For geotextiles used in recovery, they serve mainly subsequent two purposes

Modes of transport, Modes of Transport Various Modes of Transport ...

Modes of Transport Various Modes of Transport There are several modes of transport which can be developed by a country. In every country, the principal modes exist ar

Wrecked trusses and types of damages, Evaluation of various reports regardi...

Evaluation of various reports regarding the effects of earthquake on spatial trusses Types of damages According to the different types of damages, wrecked trusses can be d

State the volume change from the plastic limit, The plastic limit and liqui...

The plastic limit and liquid limit of a soil are 33% and 45% respectively. The percentage volume change from the liquid limit to the dry state is 36% of the dry volume. Likewise, t

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