XIONG Zhiwen,KE Guojun,TAO Wang,ZOU Pinyu

(School of Civil Engineering,University of South China,Hengyang 421001,China)

Abstract：In order to explore the influence of waste glass powder on the flow properties of two cement-based materials named as cement mortar and concrete,the fluidity and yield stress of cement mortar under different waste glass powder particle sizes and dosage conditions were tested.The influence of mass concentration of waste glass powder on the slump of concrete under the condition of water-binder ratio was studied.The results show that as the particle size and dosage of waste glass powder increase,the fluidity and flow rate of cement mortar show a decreasing trend,while the yield stress gradually increases.When mass concentration of waste glass powder is 10%,the particle size diameter range of 38-53 μm has the best effect on enhancing the fluidity of cement mortar.The slump of crushed stone and pebble concrete not only decreases with the increase of powder mass concentration of waste glass but also increases with the increase of the water-binder ratio.Besides,the slump of the gravel concrete is better than that of the gravel concrete.When powder mass concentration of waste glass is 10% and the water-binder ratio ranges 0.40-0.50,the slump of the two types of concrete reaches a better state.

Keywords：waste glass powder; cement mortar; concrete; fluidity; yield stress; slump

中图分类号：TU528

文献标志码：A

文章编号：1008-5548(2021)01-0080-10

DOI：10.13732/j.issn.1008-5548.2021.01.010

收稿日期：2020-06-19，修回日期：2020-09-23，在线出版时间：2020-11-02 10:41。

基金项目：湖南省自然科学基金项目,编号:2019JJ60003。

第一作者简介：熊志文(1995—),男,硕士研究生,研究方向为高性能混凝土及固体废渣利用。E-mail:1716336530@qq.com。

通信作者简介：柯国军(1964—),男,硕士,教授,硕士生导师,研究方向为高性能混凝土及固体废渣利用。E-mail:kegj320@sina.com。