【作者】 马保国； 汪杰； 谭洪波； 楚著根；

【Author】 MA Baoguo;WANG Jie;TAN Hongbo;CHU Zhugen;State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology;

【机构】 武汉理工大学硅酸盐建筑材料国家重点实验室；

【摘要】 通过花岗岩石粉等量取代水泥的方式,研究了花岗岩石粉掺量、细度以及改性组分对水泥砂浆性能的影响,并结合SEM图像对其水化产物及形貌进行分析。试验结果表明,掺加适量的花岗岩石粉能改善砂浆流动性能及抗压强度。当花岗岩石粉掺量为5%时,砂浆的流动度和抗压强度均达到了最大值;石粉细度的增加对砂浆流动性有不利影响,但能提高砂浆的抗压强度。改性剂NS对砂浆流动度影响不大,CL能有效改善砂浆流动性;NS和CL均能一定程度提高砂浆的抗压强度。更多还原

【Abstract】 Through the method of replacing cement with equal amount of granite powder,the effects of granite powder content,fineness and modifier on the performance of cement mortar were studied,the hydration products and morphology were analyzed the scanning electron microscopy.The results show that appropriate amount of granite powder can improve the mortar flow performance and mechanical properties.The fluidity and compressive strength of mortar reach the maximum when the granite powder content is 5%.The increase of fineness of stone powder has a negative effect on the fluidity of mortar,but can improve its compressive strength.Modifier NS has little effect on the fluidity of mortar,but CL can effectively improve the fluidity of mortar.NS and CL can improve the compressive strength of mortar to a certain extent.更多还原