摘 要本文采用了硅酸盐水泥来制作标准的硅酸盐水泥试件，研究了养护条件以及硅灰掺量对于硅酸盐水泥水化性能以及微观产物的影响。在此基础上，研究了低温情况下硅灰对于硅酸盐水泥性能的影响。以及硅灰对于硅酸盐水泥水化产物和力学性能的影响。研究结果表明：硅灰掺量的提高可以明显提高普通硅酸盐水泥早期抗压、抗折强度，改善普通硅酸盐水泥耐久性及耐水性能。当硅灰掺量为 8%时，普通硅酸盐水泥抗压强度可以达到最大值。水化结果表明，养护机制可以明显的影响普通硅酸盐水泥水化产物含量，低温养护状态下的普通硅酸盐水泥水化产物变化较大，进而影响普通硅酸盐水泥的抗压、抗折强度。关键词：硅酸盐水泥；水化性能；低温；硅灰AbstractIn this paper, ordinary portland cement was used to make standard portland cement specimens. The effects of curing conditions and silica fume content on hydration properties and microscopic products of portland cement were studied. On the basis of this, the effect of silica fume on the properties of portland cement at low temperature was studied. And the effect of silica fume on hydration products and mechanical properties of portland cement. Results show that, The increase of silica fume content can obviously promote the early compressive and flexural strength of ordinary portland cement and improve the durability and water resistance Iof ordinary portland cement. When the content of silica fume is 8 %, the compressive strength of ordinary portland cement can reach the maximum. The hydration results show that the curing mechanism can obviously affect the content of hydration products of ordinary portland cement. the hydration products of ordinary portland cement change greatly under low temperature curing, thus affecting the compressive strength and flexural strength of ordinary portland cement. Key words: portland cement; Hydration performance; Low temperature; Silica fumeII目 录摘 要....................
