Abstract: 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.  

Key words: Three Gorges Project, stone sands of Gushuling, concrete;mechanical property test