Characteristics of bonding behavior between basic oxygen furnace slag and asphalt binder

被引：84
作者：
Chen, Zongwu [1 ]
Xie, Jun [1 ]
Xiao, Yue [1 ]
Chen, Juyong [1 ]
Wu, Shaopeng [1 ]
机构：
[1] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Hubei, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 64卷
基金：
中国国家自然科学基金;
关键词：
BOF slag; Bonding behavior; Hydration product; Modified boiling water test; Tensile test; STEEL SLAG; PORTLAND-CEMENT; BOF SLAG; AGGREGATE; MIXTURE; LIMESTONE; ENERGY;
D O I：
10.1016/j.conbuildmat.2014.04.074
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Basic Oxygen Furnace (BOF) slag is one of the steel slags, which are by-products in steel industry. Currently there is lack of effective ways to reuse it. It has caused various environmental issues such as water pollution, soil pollution and shortage of storage spaces. Therefore, research on using BOF slag as a novel aggregate in asphalt pavement has benefits both in environment and economics. The bonding behavior between slags and asphalt binder is one of the most important properties to ensure a durable BOF slag based asphalt pavement. In this research, the bonding behavior between BOF slag and asphalt binder was studied. X-ray diffraction (XRD) was first conducted to understand the physical and hydration characteristics of BOF slag. Modified boiling water test and self-designed tensile test were than used to quantify the bonding behavior. Moisture resistance of bonding behavior can be also investigated with modified boiling water test. The results of boiling water test indicated that the BOF slag, firmly coved with hydration products, has the potential to protect the asphalt binder from being stripped by boiling water. Self-designed tensile test result illustrated that BOF slag had better bonding strength than the values of basalt and granite aggregates. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：60 / 66
页数：7
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