直接用三峡工程古树岭石屑砂拌制的大坝混凝土,其性能比用下岸溪花岗岩人工砂拌制的混凝土差。棒磨和脱云母后的石屑砂在与下岸溪人工砂掺配使用时,对混凝土性能的影响仍然是显著的。经现有工艺处理后的石屑砂仍不能以较大的比例用于配制三峡主体工程的混凝土,石屑砂对混凝土性能的影响机理需进一步研究。

Through sampling test,it is demonstrated that the properties of concrete prepared with stone sands of Gushuling are worse than those with artificial sands of Xiaanxi.Concrete mixed with Xiaanxi granite artificial sands and stonesands of Gushuling by rolling mill and micaeliminated still possesses obvious negative effect on its properties,so it means that the stonesands handled with nowaday technology can't be used in TGP's main structure concrete with a greater proportion.The meachanism of effect of stonesands of Gushuling on properties of concrete needs to be further studied.