%A Lei ZHANG,Ming XIAO,Lei WANG,Xinzhuang CUI,Lianyong SUN,Dan HUANG,Junwei SU %T Experimental study on compaction properties of tire derived aggregate-weathered rock material mixtures %0 Journal Article %D 2018 %J Journal of Shandong University(Engineering Science) %R 10.6040/j.issn.1672-3961.0.2017.487 %P 118-123 %V 48 %N 5 %U {http://gxbwk.njournal.sdu.edu.cn/CN/abstract/article_1753.shtml} %8 2018-10-01 %X

To promote the usage of scrap tires in civil engineering, the 0~60%content of tire derived aggregates by weight were mixed with widely distributed and low price weathered rock materials, and the compaction properties of tire derived aggregate-weathered rock material mixtures were studied based on heavy compaction tests performed by the large size compaction equipment. The experimental results showed that the compaction curves of mixtures were obviously different from that of pure weathered rock materials. As the content of tire derived aggregates increased, the maximum dry density of mixtures effectively decreased and the optimum water content of mixtures reduced. Tire derived aggregate-weathered rock material mixtures could be used as the lightweight backfill with good properties. According to the results of laboratory tests, the maximum dry density and optimum moisture content of mixtures were 1.865 g/cm3 and 6.25% when the TDA content was 20%, and the maximum dry density and the optimum moisture content of mixtures were 1.600 g/cm3 and 4.90% when the TDA content was 40%. Compaction parameters of mixtures could be proposed for design based on laboratory test results.