不同细度的超细硅酸盐水泥对其性能的影响  

The Effect of Ultrafine Portland Cement with Different Fineness on Its Performance

作　　者：宗翔[1] 刘睿 Zong Xiang;Liu Rui(School of Civil Engineering and Architecture,Anhui University of Science and Technology,Huainan,Anhui 232001,China)

机构地区：[1]安徽理工大学土木建筑学院,安徽232001

出　　处：《黑龙江工业学院学报（综合版）》2023年第9期132-137,共6页Journal of Heilongjiang University of Technology(Comprehensive Edition)

摘　　要：采用不同细度的超细硅酸盐水泥,结合原位XRD、SEM技术观察不同细度的超细硅酸盐水泥微观物质与微观结构对水泥的水化性能与力学性能的影响。研究表明:当超细硅酸盐水泥的细度升高时,它的初凝和终凝时间会减少,同时超细硅酸水泥的水份消耗会升高。超细硅酸盐水泥早期抗压性能和抗折性能的强度随着超细硅酸盐细度的增加而提升,但是抗压性能与抗折性能的后期提升幅度并不大;通过XRD、SEM技术观察出细度越大的超细硅酸盐水泥水化初期水化产物含量越多,水化后期水泥结构表面越致密。Using ultrafine portland cement with different fineness,combined with in-situ XRD and SEM techniques,the effects of different fineness of ultrafine portland cement microstructure on the hydration and mechanical properties of the cement were observed.The research shows that when the fineness of ultrafine portland cement increases,its initial and final setting times will decrease,while the water consumption of ultrafine silicate cement will increase.The strength of early compressive and flexural properties of ultrafine portland cement increase with the increase of ultrafine portland fineness,but the later improvement of compressive and flexural properties is not significant;Through XRD and SEM techniques,it has been observed that the higher the fineness of ultrafine portland cement,the higher the content of hydration products in the early stage of hydration,and the denser the surface of the cement structure in the late stage of hydration.

关 键 词：超细硅酸盐水泥 XRD SEM 细度 强度 水化产物 

分 类 号：TQ172.71[化学工程—水泥工业]