A Cold Recycling Technique for Foamed Bitumen Mix
LING Tian qing,HE Lianga and MA Yub
DOI:10.11835/j.issn.1674-4764.2009.01.028
Received ,Revised , Accepted , Available online July 01, 2015
Volume ,2009,Pages 141-146
- Abstract
Based on the latest research, we introduce asphalt foaming principles and their characteristics and analyze the influencing factors from macro and micro perspectives. The methods of designing foamed bitumen mixture, the optimum mixing water content, the influence of curing conditions, laboratory testing methods, mechanical characteristics, and the influencing factors of foamed bitumen mixture are discussed. We outline some new asphalt foaming technologies used in warm mix asphalt. Viewpoints regarding the development of foamed bitumen are put forward by analyzing the design and the evaluation methods of foamed bitumen mixture, the development and the selection of asphalt foaming additive, the improvement of the manufacture techniques of foamed asphalt, and the technology of modified asphalt foaming.