摘要
玻璃制品的广泛使用,所带来的大量固体废弃物给环境造成严重负担,成为亟待解决的生态难题。钠钙玻璃以环保、活性较高、硬度高、低吸水率等优点得到研究人员的关注与重视,将其作为细集料、胶凝材料应用于水泥混凝土逐渐成为研究热点。本文对废玻璃的应用进展进行了总体概述,比较了不同废玻璃的物理化学性质。同时,分析了废玻璃粒径大小对硅酸盐膨胀效应的影响程度,并总结出,可以通过降低玻璃粉粒径和掺入抑制剂等措施来削弱废玻璃作为细集料的硅酸盐膨胀效应。重点论述了玻璃粉作为胶凝材料的可能性,并深入探讨玻璃粉细度、掺量对混凝土的工作性能、力学性能、耐久性能的影响。最后,指出了废玻璃混凝土现阶段研究中存在的不足,旨在对废玻璃材料在混凝土中的研究方向和工程应用提供参考。
The extensive consumption of glass products,resulting in a large amount of solid waste to the environment,become an urgent ecological problem.With the advantages of environmental protection,high activity,high hardness and low water absorption,soda lime glass has attracted the attention and significance of researchers.As a fine aggregate and cementitious material,the application of soda lime glass in cement concrete has gradually become a hot research direction.This paper gave a general overview of the application of waste glass and compares the physicochemical properties of different waste glass.Meanwhile,the influence of glass containing different particle size on alkali-silicate reaction(ASR)was analyzed.It was founded that the ASR of waste glass as fine aggregate is weakened by abating particle size and adding inhibitors in cement concrete.The possibility of glass powder as cementitious material was researched significantly.In addition,the effect of the fineness and content of glass powder on the workability,mechanical properties and durability of concrete were also discussed.Ultimately,it pointed out the deficiency in the present studies of waste glass used in concrete,while aiming to provide references for the research direction and engineering application of waste glass in cement concrete.
作者
李碧雄
汪知文
饶丹
余弦
LI Bixiong;WANG Zhiweng;RAO Dan;YU Xian(College of Architecture and Environment,Sichuan University,Chengdu 610065,China;Chengdu Construction Engineering Group Co.,Ltd.,Chengdu 610031,China)
出处
《硅酸盐通报》
CAS
北大核心
2020年第8期2449-2457,共9页
Bulletin of the Chinese Ceramic Society
基金
国家自然科学基金(51678379)
四川省科技厅应用基础研究项目(2019YJ0131)。
关键词
废玻璃
火山灰活性
理化性质
工作性能
力学性能
耐久性能
waste glass
pozzolanic activity
physicochemical property
workability
mechanical property
durability
