混凝土路面抢修中水泥基修补材料的研制  

Properties of Fast Cement Pavement Patching Material

作　　者：赵晶[1] 罗颖[1] 

机构地区：[1]大连交通大学土木与安全工程学院,辽宁大连116028

出　　处：《大连交通大学学报》2014年第A01期90-93,共4页Journal of Dalian Jiaotong University

摘　　要：通过研究水泥修补材料来实现水泥路面的快凝快硬,达到及早开放交通和节省时间的目的.研究主要通过两种不同特种水泥与普通硅酸盐水泥进行混合配比,通过实验研究砂浆配合比、水泥凝结时间、及砂浆的粘结强度,来解决道路修补中承载力及路面新旧接口处粘结问题.通过研究发现高铝水泥的最佳掺量范围在22%,硫铝酸盐水泥的最佳掺量范围在17%,早期强度最高可达到20MPa以上.掺入高铝水泥后水泥终凝时间为40min,硫铝酸盐水泥终凝时间为80min,这些结果均满足早期快速修补路面的要求.To achieve faster coagulation and fast hardening for the purpose of early traffic opening and time sav- ing. The mixing ratio of two different special cements was studied, ordinary portland cement and the mortar mix, cement setting time, and the bond strength of the mortar are explored to solve the bearing capacity of roads and road repair old interface stick knot problem. The erperiment results show that the best content of a- lumina cement is 22%, optimum dosage of sulfur cement is 17%, and the highest early strength can reach 20MPa or more. After the incorporation of alumina cement, the final setting time is 40 min, and final setting time for sulfur cement is 80 min, these results are quick fixes to meet the requirements of quick mending of the road.

关 键 词：早期强度 硫铝酸盐水泥 高铝水泥 抗压强度 凝结时间 粘结强度 

分 类 号：U414[交通运输工程—道路与铁道工程] U416.216