Study on performance of unsaturated polyester resin concrete with marble tailings
Resin concrete was prepared by using unsaturated polyester resin(UPR)and marble tailings as the main raw materials.The effects of the content of UPR(7.7％、9.1％、9.6％、10.0％) and mtailigs powder∶mtailings sand(0∶1.0,0.3∶1.0,0.6∶1.0,0.8∶1.0,1.0∶1.0)on the properties of resin concrete were studied,and the micro mechanism analysis was conducted.The results show that with the decrease of the content of UPR,the compressive strength and bending strength of the sample decrease.Under the condition of the UPR content of 7.7％,as the content of tailings powder increases(i.e.the content of tailings sand decreases),the compressive strength and bending strength of the sample first increase and then decrease,and the optimal mtailings powder∶mtailing sand is 0.6∶1.0.Reasonable adjustment of the mtailings powder∶mtailing sand can effectively improve the thermal conductivity rate of resin concrete during the curing process,improve the microstructure,and will not affect the chemical structure and crystallization properties of the cured products,resulting in significant environmental and economic benefits.
万方数据
维普
