摘要：The unique environment of Qinghai,which includes low temperatures and large temperature differences,has posed serious challenges to quality control for concrete.The geological features of the hinterland of the inland plateau include large temperature differences between day and night,frequent snow storms,thin air,anoxic dryness,and large areas of permafrost.Through investigations of concrete quality problems in bridges in Tongtianhe,Huang-Qinggou and other areas in the plateau hinterland,this article studies the influences of factors such as raw material selection,blending ratio optimization,and shrinkage and creep control on controlling the construction quality,enhancing the structural performance,and improving the construction techniques,adaptability,and feasibility of the concrete.
关键词：Low temperature;Large temperature difference;Raw materials;Blending ratio;Shrinkage and creep.
