文献类型：期刊文献

中文题名：水玻璃模数对碱矿渣砂浆抗压强度及微观影响

英文题名：Effect of sodium silicate modulus on compressive strength and microscopic mechanism of alkali-slag mortar

作者：詹洪皋 詹锦鸿 丁永发

第一作者：詹洪皋

机构：[1]苏州科技大学土木工程学院,江苏苏州215000;[2]贵州理工学院交通工程学院,贵州贵阳550003;[3]宁夏大学土木与水利工程学院,宁夏银川750021

第一机构：苏州科技大学土木工程学院,江苏苏州215000

年份：2024

卷号：50

期号：7

起止页码：1-3

中文期刊名：四川建材

外文期刊名：Sichuan Building Materials

基金：宁夏自然科学基金项目:粉状工业废渣与建筑固废配制路用混合料的关键技术研究与应用(2021AAC03080)。

语种：中文

中文关键词：碱-矿渣;凝结时间;抗压强度;微观机理

外文关键词：alkali-slag;setting time;compressive strength;micro-mechanism

摘要：为探讨水玻璃模数对碱-矿渣砂浆凝结时间、抗压强度和水化产物的影响,借助X射线衍射仪和扫描电镜对碱-矿渣砂浆物相组成与微观结构形貌进行表征。结果表明:模数在1.0~2.0时,随模数的增加,碱-矿渣砂浆的凝结时间呈先减后增的趋势,抗压强度呈先增后减趋势。其中水玻璃模数为1.4时,碱-矿渣砂浆的初终凝凝结时间最小,分别为28、38 min, 28 d抗压强度最大为85.6 MPa。由微观分析可知,碱-矿渣砂浆的水化产物为C-(A)-S-H凝胶,且模数为1.4时,碱-矿渣砂浆生成的水化产物较多,微观结构形貌结构致密。
To further clarify the influence of sodium silicate modulus on setting time,compressive strength and hydration products of alkali-slag mortar;the phase composition and microstructure of alkali-slag mortar were characterized by X-ray diffraction and scanning electron microscopy.The results show that the setting time of alkali-slag mortar decreases first and then increases with the increase of modulus in the range of 1.0~2.0.The compressive strength increases first and then decreases with the increase of modulus.When the modulus of sodium silicate is 1.4,the setting time of alkali-slag mortar is the smallest,which is 28 min、38 min;and the compressive strength at 28 d is the largest,which is 85.6 MPa.The microscopic analysis shows that the hydration product of alkali-slag mortar is C-(A)-S-H gel,and when the modulus is 1.4,the hydration products generated by alkali-slag mortar are more and the microstructure morphology and structure are dense.