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Title:

Evaluation of Lightweight Aggregates in Chip Seal

Accession Number:

01336709

Record Type:

Component

Abstract:

Chip seal, also known as seal coat, is widely used as a low-cost, thin surface treatment in preventive maintenance of asphalt pavements. Loosening of aggregate particles from chip-sealed pavement and associated windshield damage of vehicle is a common problem. Thus Kansas Department of Transportation uses lightweight aggregates as cover materials for chip seals. Although this has decreased wind shield damage problems, extensive chip loss on seal-coated pavements in the state has been reported. In this project, lightweight aggregates were studied in the laboratory to determine the effect of moisture content and electrical charge on chip loss. Results indicate that retention of aggregated depends upon the prevailing charges of aggregate and emulsion particles. Moisture condition of the aggregates does not have any effect on chip loss. A new sweep test machine has been developed to assess chip loss and it was found to be better than the sweep test recommended by the American Society for Testing and Materials (ASTM).

Monograph Accession #:

01329018

Report/Paper Numbers:

11-2636

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Islam, Md Shahidul
Hossain, Mustaque

Pagination:

17p

Publication Date:

2011

Conference:

Transportation Research Board 90th Annual Meeting

Location: Washington DC, United States
Date: 2011-1-23 to 2011-1-27
Sponsors: Transportation Research Board

Media Type:

DVD

Features:

Figures; Photos; References (16) ; Tables (2)

Uncontrolled Terms:

Damage prevention

Geographic Terms:

Kansas

Subject Areas:

Highways; Materials; I36: Aggregates

Source Data:

Transportation Research Board Annual Meeting 2011 Paper #11-2636

Files:

TRIS, TRB

Created Date:

Feb 17 2011 6:14PM