Effect of CG Artificial Weathering on Highway Properties

The purpose of this study is to understand the effect of coal gangue(CG) weathering on CG highway properties. Three kinds of CG originating from Wuhai, Xuejiawan and Dongsheng areas in China and a common road aggregate as a comparison were sampled to test their stabilities, consistence, free expansibility and unconfined compressive strength under the artificial physical weathering and chemical weathering conditions as a road construction material in lab respectively. The results showed that the stabilities of Wuhai CG were higher than that in others after the physical weathering and chemical weathering. The highway properties such as consistence, free expansibility and unconfined compressive strength of weathered Xuejiawan CG(X-CG) and Dongsheng CG(D-CG) could not meet the road's demands, while the Wuhai CG(W-CG) and road aggregate were content with the road's requirement.

• Record URL:
  https://doi.org/10.1061/9780784412435.043
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784412435
• Supplemental Notes:
  • © 2012 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Li, Weisheng
  • Zhang, Yan
• Conference:
  • International Conference On Civil Engineering And Urban Planning 2012
  • Location: Yantai , China
  • Date: 2012-8-12 to 2012-8-20
• Publication Date: 2012-7

Language

• English

Media Info

• Media Type: Digital/other
• Pagination: pp 239-242
• Monograph Title: Civil Engineering and Urban Planning 2012

Subject/Index Terms

• TRT Terms: Asphalt pavements; Mechanical properties; Pavement performance; Properties of materials; Weathering
• Uncontrolled Terms: Coal gangue
• Geographic Terms: China
• Subject Areas: Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01502525
• Record Type: Publication
• ISBN: 9780784412435
• Files: TRIS, ASCE
• Created Date: Nov 12 2013 2:32PM