Location

Chicago, Illinois

Date

02 May 2013, 4:00 pm - 6:00 pm

Abstract

Use of geosynthetics for flexible pavements founded on expansive soil subgrade is one of feasible and economic solution to minimize the undulation and required pavement thickness. In this present investigation the effect of inclusion of the geosynthetic reinforcement on California Bearing Ratio (CBR) value of a two layered soil system with black cotton soil at bottom and granular soil at top as a buffer layer, with different thickness configuration and geotextiles of different physical and mechanical properties was studied by laboratory and field California bearing ratio tests. Thickness of flexible pavement over the two layer soil system of different thickness configurations was estimated for unreinforced and reinforced two layered soil system by the method suggested by United States Army Corps of Engineers and Indian Road Congress. The reduction (%) in the thickness of pavement due to inclusion of geotextiles has been observed in the investigation. The reduction in thickness of pavement can be achieved up to 53.53% depending upon the thickness configuration and the type of the geotextile used. The results have shown that the field CBR tests can yield the results in conformity with the values obtained in the laboratory test.

Department(s)

Civil, Architectural and Environmental Engineering

Meeting Name

7th Conference of the International Conference on Case Histories in Geotechnical Engineering

Publisher

Missouri University of Science and Technology

Document Version

Final Version

Rights

© 2013 Missouri University of Science and Technology, All rights reserved.

Creative Commons Licensing

Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Investigation on Geosynthetic Reinforced Two Layered Soil System

Chicago, Illinois

Use of geosynthetics for flexible pavements founded on expansive soil subgrade is one of feasible and economic solution to minimize the undulation and required pavement thickness. In this present investigation the effect of inclusion of the geosynthetic reinforcement on California Bearing Ratio (CBR) value of a two layered soil system with black cotton soil at bottom and granular soil at top as a buffer layer, with different thickness configuration and geotextiles of different physical and mechanical properties was studied by laboratory and field California bearing ratio tests. Thickness of flexible pavement over the two layer soil system of different thickness configurations was estimated for unreinforced and reinforced two layered soil system by the method suggested by United States Army Corps of Engineers and Indian Road Congress. The reduction (%) in the thickness of pavement due to inclusion of geotextiles has been observed in the investigation. The reduction in thickness of pavement can be achieved up to 53.53% depending upon the thickness configuration and the type of the geotextile used. The results have shown that the field CBR tests can yield the results in conformity with the values obtained in the laboratory test.