Effect of waste glass particle size on high temperature properties of mortar

被引:0
作者
机构
[1] School of Urban Construction, University of South China
[2] Faculty of Advanced Technology, University of Glamorgan
来源
Ke, G.-J. (kegj320@sina.com) | 1600年 / Tongji University卷 / 16期
关键词
Enhancement effect; High temperature; Mortar; Particle size; Waste glass;
D O I
10.3969/j.issn.1007-9629.2013.02.028
中图分类号
学科分类号
摘要
Mortar was made with 1.18-5.00 mm, 600 μm-1.18 mm, 300-600 μm and <300 μm waste glass replacement of natural sand at levels (by mass) of 30%, 60% and 100%. Mortar specimens were tested for their compressive strength and splitting tension strength at 20, 300, 400, 600, 800 and 900°C. The experimental results show that the mortar which was made with ≥300 μm waste glass replacement of natural sand, its strengths at room temperature are lower than control mortar's and decrease with increase of temperature. The mortar which was made with <300 μm waste glass replacement of natural sand, its splitting tension strength is slightly higher than control mortar's and compressive strength is greatly higher control mortar's at room temperature. It was found that mortar strength of all mixes reduces with elevation of temperature, a good linear relationship between strength and heating temperature is present, most of the correlation coefficients are greater than 0.980. The waste glass for particle size <300 μm and replacement rate of more than 60% can get more than 1.25 high temperature enhancement coefficient and can significantly improve high temperature performance of mortar.
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页码:335 / 340
页数:5
相关论文
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