Strength Characteristics of Pavement Materials
For design purposes, it is required that the various pavement materials are assigned strength parameters suitable to the design method employed for the purpose. The general strength values evaluated are:
1. California Bearing Ratio (CBR) value
The strength values so obtained for the materials tested are of relative significance and do not provide an absolute measure. There are design methods which employ the CBR strength values of materials used in diffeerent pavement layers
2. Elastic modulii
Depending upon the design methods, the elastic modlii of different pavement materials are evaluated. Mainly, plate bearing test is employed for this purpose. Further modulus of elasticity or modulus of deformation of highway materials may be determined from triaxial compression test.
The elastic modulii of the following are determined by plate bearing tests:
1. Subgrade modulus
2. Elastic modulii of base course and sub base course materials
Highway and Transport Engineering
and this section is about Highway Design
(refference : Khanna, S.K., Justo, C.E.G., Highway Engineering, 3th edition, Nem Chand & Bros Roorkee (U.P.), 1976.)
The elastic modulii of the following are determined by plate bearing tests:
1. Subgrade modulus
2. Elastic modulii of base course and sub base course materials
Highway and Transport Engineering
and this section is about Highway Design
(refference : Khanna, S.K., Justo, C.E.G., Highway Engineering, 3th edition, Nem Chand & Bros Roorkee (U.P.), 1976.)
Title Post: Strength Characteristics of Pavement Materials
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