摘要
以废弃玻璃作为细骨料制备自密实混凝土,研究了不同废弃玻璃取代率作用下,自密实混凝土的工作性能、力学性能和体积稳定性能。结果表明:利用废弃玻璃作为细骨料能够显著提升自密实混凝土坍落扩展度并改善经时损失,自密实混凝土间隙通过能力和稳定性能均满足要求;混凝土力学性能随废弃玻璃掺量增加而降低,混凝土强度等级越高,废弃玻璃对力学性能的削弱效果越强;粉煤灰能够有效抑制废弃玻璃引起的体积膨胀。废弃玻璃能够作为合格细骨料制备性能良好的自密实混凝土。
Self-compacting concrete was prepared with waste glass being used as fine aggregate.The influence of different replacement rate of waste glass on workability, mechanical properties and volume stability of self-compacting concrete was studied.The results showed that the waste glass could significantly improve the slump and reduce the slump loss with time;concrete prepared with waste glass met the requirements of both passing ability and segregation resistance.The mechanical properties were reduced with the increase of waste glass replacement rate.The weakening effect of waste glass was more significant in the higher strength concrete.Fly ash could effectively suppress the volume expansion caused by the waste glass.As a kind of qualified fine aggregate, waste glass could be used to produce a self-compacting concrete with high performance.
出处
《工业建筑》
CSCD
北大核心
2015年第10期126-131,共6页
Industrial Construction
基金
浙江省建设厅项目(201349)
2014年度高校国内访问工程师校企合作项目(FG2014166)
关键词
废弃玻璃
细骨料
自密实混凝土
工作性
体积变化
waste glass
fine aggregate
self-compacting concrete
workability
change in volume
