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Evaluation of HMA with coal gangue coarse aggregate

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Coal gangue is the waste of coal mining. It is discharged and stacked all around the mine and the dust pollution has become a public hazard. This paper commits an investigation on the asphalt mixture which takes advantage of coal gangue as coarse aggregate. The physical-mechanical performances of coal gangue aggregate are presented and the result indicates that coal gangue aggregate can meet the specifications except the content of the Flat and Elongate particles (F&E content). By controlling the rational content of F&E in the mixture, different types of asphalt mixes with different percentage of coal gangue coarse aggregate are tested and the overall performance of asphalt mixture is investigated. The result testifies that the asphalt mixture containing coal gangue has the equivalent performance with limestone mixture. It is observed that the coal gangue used as coarse aggregate can guarantee the properties of HMA. Thus the HMA can be used in asphalt pavement.

Original languageEnglish
Title of host publicationAdvances in Mechanical Design
Pages209-215
Number of pages7
DOIs
StatePublished - 2011
Externally publishedYes
Event2nd International Conference on Manufacturing Science and Engineering, ICMSE 2011 - Guilin, China
Duration: 9 Apr 201111 Apr 2011

Publication series

NameAdvanced Materials Research
Volume199-200
ISSN (Print)1022-6680

Conference

Conference2nd International Conference on Manufacturing Science and Engineering, ICMSE 2011
Country/TerritoryChina
CityGuilin
Period9/04/1111/04/11

Keywords

  • Asphalt mixture
  • Coal gangue
  • Mix design
  • Pavement performance

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