Performance Evaluation of Asphalt Mixtures with Gasifier Slag as Fine Aggregate

MA Khatri; DF Martinez; FM Bayomy; JA Salter; WT Tang

doi:10.1520/STP19856S

SYMPOSIA PAPER Published: 01 January 1993

STP19856S

Performance Evaluation of Asphalt Mixtures with Gasifier Slag as Fine Aggregate

Source

This study investigates the chemical, physical, and mechanical properties of gasifier slag produced through the coal gasification process. The study focuses on the use of gasifier slag as a full or partial replacement for crushed fine aggregate and/or sand in hot-mix asphalt concrete. Performance of these newly developed slag-asphalt (Slagphalt) mixtures is evaluated in comparison with Control mixes, i.e., conventional mixes without slag. The low cost of slag makes it a viable alternative as a substitute for natural sand. The angularity and relatively narrow particle size distribution of the slag will be attractive in some regions.

Author Information

Khatri, MA

Southwestern Laboratories, Houston, Texas

Martinez, DF

Southwestern Laboratories, Houston, Texas

Bayomy, FM

University of Idaho, Moscow, Idaho

Salter, JA

Shell Development Company, Houston, Texas

Tang, WT

Shell Development Company, Houston, Texas

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Details

Developed by Committee: D04

Pages: 276–292

DOI: 10.1520/STP19856S

ISBN-EB: 978-0-8031-5245-8

ISBN-13: 978-0-8031-1881-2

Performance Evaluation of Asphalt Mixtures with Gasifier Slag as Fine Aggregate

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