【作者】 韩冀豫； 黄修林； 丁庆军； 胡曙光；

【Author】 Han Jiyu,Huang Xiulin,Ding Qingjun,Hu Shuguang(Department of Materials Science and Engineering,Wuhan University of Technology)

【机构】 武汉理工大学材料科学与工程学院；

【摘要】 本文通过对水泥净浆强度、早期水化热的测量,并运用XRD分析和SEM分析等技术,研究了在水胶比为0.35和粉煤灰掺量为20%～50%的情况下,大掺量粉煤灰对硅酸盐水泥水化历程和硬化浆体微结构的影响。研究结果表明:粉煤灰在早期火山灰活性不高;粉煤灰掺量越大,对强度的影响越大。更多还原

【Abstract】 In this article,through the measurements on neat cement paste strength and heat of hydration at the early stage and using several analytical methods including XRD and SEM,we have studied the effect of large amount of fly ash on the hydration processes and cement’s hardening mechanism of ordinary portland cement when water to binder ratio is 0.35 and fly ash content is between 20% and 50%.The research outcomes find that the pozzolanic activities of fly ash are not good at the early stage.The more the content of fly ash is,the bigger the effect on strength will be.更多还原