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What types of materials are used to build roads?

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تم إضافة السؤال من قبل Ksenija Kancelak , Construction Project Manager , City of Koprivnica, Koprivnica (Croatia)
تاريخ النشر: 2016/06/17
md mofajjul hossain
من قبل md mofajjul hossain , Highway Site Engineer , Gayatri Project Pvt Ltd

Material is used in road is GSB,WMM,DBM,Bitumen concrete, Etc

Hrvoje Kancelak
من قبل Hrvoje Kancelak , Certificated Traffic Engineer , Office of independent engineer

In generally:

 

Asphalt

Concrete

Gravel

Muhammad Farooq
من قبل Muhammad Farooq , QA-QC MANAGER , AL Bawani contracting co.

In embankment generally A1, A2, A4 and A3( In confined area) maerial is used

Sub grade or Road Foundation: It is mostly processed material and follow the project spec requirement. A1-a and A1-b is used generally and with minCBR value set by according to local material requirements.

Sub base: process material and meet the project spec requirements

Aggregate Base course: Generally size range from2 inch to1inch depeneding the design. Its blended material to follow the spec requirement.

asphalt aggregate base course: depened on road design to use or not. asphalt is binding material.Generally for heavy load is used. Desing by marchal or superpave method

Weaing course or top course: designed by marshal or super pave. asphalt of different grade or viscosity is used.

Material is used in road is stone, sand, clay, silt,asphalt, concrete etc

 

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Thanks  Ksenija Kancelak for invitation, and sorry the question is not related to my field, hope the experts of this field will answer.

 

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