闽南地区大量使用的花岗岩机制砂及其石粉与目前国内研究较多的石灰石粉的性能差异较大。本文通过胶砂及混凝土试验,研究硅质石粉在胶凝活性、强度、抗氯离子渗透等方面对混凝土性能的影响。结果表明,适当地使用硅质石粉可以一定程度地提高混凝土的耐久性。 The large amount of granite mechanism sand and stone powder used in southern Fujian have a great difference from the limestone powder currently studied in China. In this paper, through the test of mortar and concrete, the influence of siliceous stone powder on the properties of concrete in the aspects of gelling activity, strength, resistance to chloride ion penetration and so on was studied. The results show that the appropriate use of siliceous stone can improve the durability of concrete to some extent.