摘要
本文通过Ｘ－Ｒａｙ衍射、扫描电镜等方法研究了不同ＮａＯＨ掺量的灰砂硅酸盐砼的宏观性能和水化相。结果表明，ＮａＯＨ的加入明显提高了灰砂硅酸盐砼的碱度，但对灰砂硅酸盐的抗压强度影响不大；结果还表明，ＮａＯＨ的加入促进了灰砂硅酸盐砼中低碱水化硅酸钙的生成，抑制了高碱水化硅酸钙的生成。
In.this paper,the macro properties and hydration phases of lime-sand silicate concrete which NaOH of various contents are added are studied by means of XRD,SEM etc. The results reveal that the addition of NaOH greatly increases the alkalinity ofthe concrete and have little influence on compressive strength of the concrete, the resultsalso show that the addition of NaOH promotes the formation of low alkaline hydrous calcium silicates but inhibits the formation of high alkaline hydrous calcium silicates in the concrete.
