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Paper
Title

Correlation between Deflection and Unevenness Index for Evaluation of Flexible Pavements

Year: 1393
COI: JR_IJTE-2-4_012
Language: EnglishView: 263

Authors

Shabana Thabassum - Associate Professor, Department of Civil Engineering, St. Martin’s Engineering College, JNTU, Hyderabad, India.

Abstract:

Evaluating existing flexible pavement condition is a pre-requisite to choose improvement technique that has to be adopted to enhance its quality. To evaluate existing pavements, non-destructive testing methods are desirable. Benkelman Beam and 5th Wheel Bump Integrator are used to conduct non-destructive tests like deflection androughness surveys on the existing pavement of 4 lane divided carriageway of Nandigama – Ibrahimpatnam section ofNH-9 in the state of Andhra Pradesh (India). In this paper, an attempt has been made to develop and validate linear andlogarithmic models between deflection and unevenness index for pavement under study and the correlation betweenthese two parameters. The section selected for model validation is Naidupet – Sullurpet section of NH-5 in the state ofAndhra Pradesh. It is found that validated unevenness index (UI) values from the model are 90% similar with the UIvalues obtained from roughness survey at second location. Conducting deflection and roughness surveys cost around. 2,00,000 per Km and is time consuming. The objective of the study is to develop a relation between deflection andunevenness index, such that, if one parameter is known, the second parameter can be calculated and hence, the survey time and cost can be minimized.

Keywords:

Paper COI Code

This Paper COI Code is JR_IJTE-2-4_012. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/406439/

How to Cite to This Paper:

If you want to refer to this Paper in your research work, you can simply use the following phrase in the resources section:
Thabassum, Shabana,1393,Correlation between Deflection and Unevenness Index for Evaluation of Flexible Pavements,https://civilica.com/doc/406439

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