摘要
Abstract
With a view to such characteristics of Harbin-Dalian Passenger Dedicated Line TJ-2 project in Tiding area, Liaoning Province as unstable quality of natural river sand, big difference in gradation dominated by medium and coarse sand of fineness modulus 2. 8 ~ 3. 3 , grain grade in zone I and II , the supervision unit takes such supervision activities as sampling test, witness testing, checking concrete material composition list, on-site supervision wilh respect to material source investigating and sampling, mixing ratio test, mixing plant raw material inspection, concrete mixing monitoring, which has not only guaranteed the quality of the sand to make high performance concrete, and also lower the cost by using the sand from nearby around the construction site.关键词
哈大客运专线/高性能混凝土/砂/质量/监控Key words
Harbin-Dalian Passenger Dedicated Line/ High performance concrete/ Sand/ Quality/ Supervision分类
交通工程
