RAP掺量和水灰比对再生水泥混凝土力学性能的影响研究  

Effect of RAP Content and Water-Cement Ratio on Mechanical Properties of Recycled Cement Concrete

作　　者：王江龙 WANG Jianglong(Shanxi Zhenxing Highway Supervision Co.,Ltd.,Taiyuan,Shanxi 030012,China)

机构地区：[1]山西振兴公路监理有限公司,山西太原030012

出　　处：《山西交通科技》2023年第6期13-15,28,共4页Shanxi Science & Technology of Transportation

基　　金：山西交通控股集团有限公司科技项目(20-JKKJ-53,19-JKKJ-68);山西省交通运输厅科技项目(2020-1-8,2020-1-9)。

摘　　要：研究了沥青路面回收料(RAP)掺量和水灰比(Rw/c)对沥青路面回收料再生水泥混凝土抗压强度、劈裂强度和抗折强度等力学性能的影响,分析了RAP-RCC的破坏机理。结果表明:掺入RAP会降低再生水泥混凝土的抗压强度、劈裂强度和抗折强度等力学性能,且RAP掺量越大力学性能下降越显著;拉压比和折压比均随着RAP掺量的增大而小幅增大,RAP的掺入对混凝土的韧性有所提升。This paper studied the effects of the content of the reclaimed asphalt pavement(RAP)and the water-cement ratio(Rw/c)on the mechanical properties such as compressive strength,splitting strength,and flexural strength of the recycled cement concrete with RAP(RAP-RCC),and analyzed the failure mechanism of RAP-RCC.The results showed that adding RAP would decrease the mechanical properties of the recycled cement concrete,and the more the RAP content,the more the mechanical properties decreased.The tensile-compression ratio and flexural-compression ratio increased slightly with the increase of RAP content,indicating that adding the RAP would slightly improve the toughness of concrete.

关 键 词：再生水泥混凝土 沥青路面回收料 掺量 水灰比 

分 类 号：U414.18[交通运输工程—道路与铁道工程]