废玻璃粉对混凝土力学性能的影响试验研究  

Experimental study on the influence of waste glass powder on the mechanical property of concrete

作　　者：苏柳月 陈怀 何其 黄曦 肖晓旭 方翠 SU Liuyue;CHEN Huai;HE Qi;HUANG Xi;XIAO Xiaoxu;FANG Cui(School of Civil Engineering and Architecture,Guangxi University of Science and Technology,Liuzhou 545006,China)

机构地区：[1]广西科技大学土木建筑工程学院,广西柳州545006

出　　处：《广西科技大学学报》2020年第4期27-32,共6页Journal of Guangxi University of Science and Technology

基　　金：广西科技基地和人才专项项目(桂科AD19110152);广西高校中青年教师科研基础能力提升项目(2020KY08022);广西科技大学科学基金项目(校科自1711314);广西科技大学大学生创新创业训练计划项目(201910594178)资助。

摘　　要：为提高玻璃废弃物的有效利用率,顺应可持续发展要求,将废玻璃粉作为辅助胶凝材料替代混凝土中的水泥,研究不同玻璃粉掺量下混凝土的力学性能,并探讨粉煤灰与玻璃粉复掺对废玻璃粉混凝土力学性能的影响.试验结果表明:废玻璃粉的掺入降低了混凝土的坍落度和抗压强度,但其后期火山灰活性效应增强,玻璃粉掺量为10%~20%的混凝土28 d抗压强度接近基准混凝土;随着粉煤灰在玻璃粉混凝土中掺量的增多,混凝土7 d、28 d的强度均呈减小趋势,掺量为20%~25%时可提高混凝土的和易性;废玻璃粉作为掺合料在混凝土中具有良好的应用前景.The waste glass powder was used as cementitious material to replace the cement in concrete to improve the effective utilization rate of growing waste glass.The mechanical property of concrete with different glass powder content was studied,and the influence of fly ash on the mechanical property of waste glass powder concrete was explored.The testing results show that the waste glass powder reduces the slump and compressive strength of concrete,but its pozzolanic effect increases in later period.The 28 days compressive strength of concrete with 10%-20%glass powder is close to that of reference concrete.With the increase of fly ash content,the 7 days and 28 days compressive strength of waste glass powder concrete decrease,and the workability of concrete improves when the content of waste glass powder is 20%-25%.Glass powder as admixture has a good application prospect in concrete.

关 键 词：废玻璃粉混凝土 力学性能 和易性 粉煤灰 火山灰活性 

分 类 号：TU528.44[建筑科学—建筑技术科学]