Laboratory method to simulate short-term aging of hot mix asphalt in hydraulic engineering

被引：5

作者：

Smesnik, Mathias ^{[1
]}

Tschernutter, Peter ^{[1
]}

Hofko, Bernhard ^{[2
]}

机构：

[1] Vienna Univ Technol, Res Ctr Hydraul Engn, A-1040 Vienna, Austria

[2] Vienna Univ Technol, Res Ctr Rd Engn, A-1040 Vienna, Austria

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 150卷

关键词：

Short-term aging; Thermal and oxidative aging; Asphalt mix; Bitumen; Hydraulic engineering; Asphalt sealing element; Extended material hauling times;

D O I：

10.1016/j.conbuildmat.2017.05.207

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Asphalt sealing elements for dams have to be watertight and able to absorb strains without suffering from cracking and thus losing their sealing ability. As an effect of the aging process, bitumen becomes stiffer and more brittle accompanied by a deterioration of the asphalt flexibility. Construction sites in hydraulic engineering are in many cases in remoted areas. This leads to extended material hauling times and strong short-term aging effects. This paper presents a newly developed short-term lab-aging procedure (HMAAT - Hot Mix Asphalt Aging Test) to assess the changing of the material characteristics as a consequence of extended material hauling times and related high mix temperatures. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：435 / 441

页数：7