Development of Environmentally Sustainable Pavement Mix

Tien-Fang Fwa ； Chin-Chong Yoong ； Than-Nyunt Than ； Soo-Loi See

《International Journal of Pavement Research and Technology》 6卷4期 (2013/07) Pp. 440-446

https://doi.org/10.6135/ijprt.org.tw/2013.6(4).440

並列摘要

Sustainable road construction is now one of the major interests of highway authorities. In this study, recycled material (steel slag aggregates) was used to replace granite aggregates in the construction of a porous pavement surface course. Besides using recycled aggregates, the asphalt mixture was designed to achieve improved environmental sustainability performance by providing enhanced wet-pavement skid resistance and visibility of road markings in wet weather conditions, and reduced tyre-pavement noise. Two new asphalt mix types using steel slag aggregate of different gradations (i.e. maximum aggregate size of 13.2 mm and 16 mm) were tested in the laboratory and the performance monitored on the site. From the results obtained from field monitoring tests, it was observed that the new asphalt mixes provided sufficient drainage of water, displayed comparable wet-pavement skid resistance and better reduction in tyre-pavement noise as compared with the other types of asphalt mix currently used in Singapore.

並列關鍵字

Porous mix ； Skid resistance and permeability ； Steel slag aggregates ； Tyre-pavement noise

參考文獻

Wang, G. and Thompson, M. (2011). Slag Use in Highway Construction - the Philosophy and Technology of its Utilization, International Journal of Pavement Research and Technology, 4(2), pp. 97–103.

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Rail & Engineering Groups, Land Transport Authority, Singapore (2010). Materials & Workmanship Specification for Civil & Structural Works, Singapore.