Experimental Study of Waste Tire Rubber,Wood-Plastic Particles and Shale Ceramsite on the Performance of Self-Compacting Concrete  

作　　者：Lei Tian Liuchao Qiu Jingjun Li Yongsen Yang 

机构地区：[1]College of Water Resources&Civil Engineering,China Agricultural University,Beijing,100083,China

出　　处：《Journal of Renewable Materials》2020年第2期153-170,共18页可再生材料杂志（英文）

基　　金：the financial support from the National Natural Science Foundation of China,grant number 11772351;Double Shield TBM Material Optimization and Supporting Technology Research-TBM Segment Rapid Support Scientific Research Project[contract NO:PM2017/D02];the National Key R&D Program of China(No.2018YFC0406604).

摘　　要：In recent decades,the utilization of waste tires,plastic and artificial shale ceramsite as alternative fine aggregate to make self-compacting concrete(SCC)has been recognized as an eco-friendly and sustainable method to manufacture renewable construction materials.In this study,three kinds of recycled aggregates:recycled tire rubber particles,wood-plastic particles,artificial shale ceramsite were used to replace the sand by different volume(5%,10%,20%and 30%),and their effects on the fresh and hardened properties of SCC were investigated.The slump flow and V-funnel tests were conducted to evaluate the fresh properties of modified-SCC mixtures.The hardened properties include 3,7 and 28-day compressive strengths,axial compressive strength,static elastic modulus,and compressive stress-strain behavior at 28 days.The test results showed that the incorporation of these three kinds of alternative aggregates had a negative impact on the fresh properties of SCC.Besides,the 28-day compressive strength and axial compressive strength decreased with the increase of rubber and wood-plastic particles content.In this experiment,all the three kinds of recycled aggregates can improve the ductility and deformability of SCC,and the most excellent performance comes from SCC with recycled rubber particles.

关 键 词：Self-compacting concrete recycled aggregates lightweight aggregates waste management 

分 类 号：TG1[金属学及工艺—金属学]