Porous asphalt mixture with 100% recycled concrete aggregate

Recycling of construction debris in Singapore is an important practice given the large amount generated annually. In order to maximise the rate of recycled concrete aggregate (RCA) generated from construction debris, porous asphalt mixture (PAM) made of 100% RCA was studied in both mechanical and functional aspects. Altogether, three designs of PAMs were evaluated, namely (a) PAM–RCA mixture comprising 100% RCA, (b) PAM–RCA–TAFPACK-Super (TPS) mixture comprising 100% RCA with enhanced asphalt binder, and (c) PAM–granite mixture comprising 100% granite, with PAM–granite mixture serving as the control. A series of laboratory tests were conducted, namely the draindown test, Cantabro test, Marshall test, permeability test, and aging test. The results showed that PAM made of 100% RCA (PAM–RCA mixture) can offer the basic drainage function and possesses potential for low-strength application, i.e. pedestrian/cyclist pathways. Meanwhile, PAM made of 100% RCA and modified by specific additive TPS (PAM–RCA–TPS mixture) can adequately fulfill the Marshall criteria of Singapore's Land Transport Authority Standard stipulated for normal roads, indicating its potential usage in normal highway application. The results suggest the feasible application of 100% RCA in PAM.

• Record URL:
  • https://doi.org/10.1080/14680629.2013.837839
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14680629
• Supplemental Notes:
  • Abstract reprinted with permission from Taylor & Francis.
• Authors:
  • Chen, Meng Jia
  • Wong, Yiik Diew
• Publication Date: 2013-12

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 921-932
• Serial:
  • Road Materials and Pavement Design
  • Volume: 14
  • Issue Number: 4
  • Publisher: Taylor & Francis
  • ISSN: 1468-0629
  • EISSN: 2164-7402
  • Serial URL: http://www.tandfonline.com/loi/trmp20

Subject/Index Terms

• TRT Terms: Asphalt additives; Asphalt mixtures; Concrete aggregates; Laboratory tests; Marshall test; Porous materials; Recycled materials
• Uncontrolled Terms: Draindown test; Low strength concrete
• Geographic Terms: Singapore
• Subject Areas: Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials; I32: Concrete; I36: Aggregates;

Filing Info

• Accession Number: 01502360
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 23 2013 11:06AM