Utilization of gneiss coarse aggregate and steel slag fine aggregate in asphalt mixture

被引：69

作者：

Chen, Zongwu ^{[1
]}

Wu, Shaopeng ^{[1
]}

Wen, Jin ^{[2
]}

Zhao, Meiling ^{[1
]}

Yi, Mingwei ^{[1
]}

Wan, Jiuming ^{[1
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Silicate Mat Architecture, Wuhan 430070, Peoples R China

[2] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2015年 / 93卷

关键词：

Steel slag; Gneiss; Material characteristics; Asphalt mixture; Pavement performance; OXYGEN FURNACE SLAG; PERFORMANCE; RESISTANCE; CEMENT;

D O I：

10.1016/j.conbuildmat.2015.05.070

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Natural resource shortage and environmental pollution issue have promoted the recycling of inferior natural resources and solid wastes in asphalt pavement. While steel slag fine aggregate and inferior gneiss aggregate are rarely used in asphalt mixture in China due to some poor performances. The primary objective of this research was to explore the feasibility of simultaneously using gneiss coarse aggregate and steel slag fine aggregate in asphalt mixture. A new method to improve the quality of steel slag fine aggregate was proposed first. Raw material characteristics directly related to asphalt adhesion and absorption were fully detected then. Performances of asphalt mixture including Marshall stability and quotient, crack resistance, moisture susceptibility, volume stability and deformation resistance were evaluated finally. Results showed that modified WSFA (Weathered Steel Slag Fine Aggregate) presented lower asphalt absorption than original WSFA. Asphalt mixture consist of gneiss coarse aggregate and modified WSFA obtained better crack resistance, moisture resistance, volume stability and deformation resistance. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：911 / 918

页数：8

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