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Title:

Laboratory Investigation of Characteristics of Coir Powder-Modified Stone Matrix Asphalt

Accession Number:

01628576

Record Type:

Component

Abstract:

Roads in Kerala, India, get damaged due to high traffic density, heavy loads and the torrential rain during the Monsoon season. Therefore various steps must be taken to increase the service life and strength of bituminous pavements. Through modification the binder became ideal for a given climate and performs very well at low and high temperature. Stone Matrix Asphalt (SMA) has already proven its superiority over conventional bituminous concrete in various countries through the addition of fibers and asphalt mixtures improved the performance of pavements. In Kerala coir fibers are cheap and locally available. The performance of asphalt by the addition of natural materials is expected to reduce the ever increasing need for asphalt as a road construction material. In this paper an attempt has been made to study the performance of coir powder (coconut fibre powder) modified bitumen. Coir powder of varying percentages by weight of binder, that is 0.2%, 0.4%, 0.6%, 0.8%, 1.0%, and 1.2%, was added to the base binder. The maximum percentage increase in stability value and maximum percentage decrease in flow value were observed for 0.6% coir powder modified mixes. There were an 8.58% increase in stability and a 19.63% decrease in flow value. So the 0.6% coir powder modified mix having 6.7% optimum bitumen content was used for further performance evaluation tests. Performance tests were conducted on control and modified mixes and the better performance was shown by the modified SMA mix.

Supplemental Notes:

This paper was sponsored by TRB committee AFK30 Standing Committee on Non-Binder Components of Asphalt Mixtures. Alternate title: Laboratory Investigation on the Characteristics of Coir Powder Modified Stone Matrix Asphalt.

Monograph Accession #:

01618707

Report/Paper Numbers:

17-03014

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

T, Sreelatha
Koshy, Bino I
Sukumaran, Sumitha

Pagination:

15p

Publication Date:

2017

Conference:

Transportation Research Board 96th Annual Meeting

Location: Washington DC, United States
Date: 2017-1-8 to 2017-1-12
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Geographic Terms:

Kerala (India)

Subject Areas:

Highways; Materials; Pavements

Source Data:

Transportation Research Board Annual Meeting 2017 Paper #17-03014

Files:

TRIS, TRB, ATRI

Created Date:

Dec 8 2016 11:08AM