Durability of asphalt concrete at static creep test

被引：0

作者：

Zolotarev, VA

Efremov, SV

Goncharenko, FP

机构：

来源：

MECHANICAL TESTS FOR BITUMINOUS MATERIALS: RECENT IMPROVEMENTS AND FUTURE PROSPECTS | 1997年

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D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

At static creeping, durability of asphalt concrete is it's ''life time'' until destruction under the action of permanent tension. The ''life time'' depends on Value of actioning tension, temperature and composition of asphalt concrete. Temperatural dependences of ''life time'' of asphalt concrete may be described by different equations. Curves of ''life time'' from the value of tension at higher temperatures are more correspond to power equation, and at lower temperature to the exponential equation. At the field of brittle state of asphalt concrete is observed the decrease of ''life time'' in comparision with more higher temperatures. This effect is clearly displayed for asphalt concrete on bitumens with increased temperature of brittleness of Fraas. In the ''life time'' of asphalt concrete influence the medium, in which asphalt concrete is contained. Liquid mediums decrease the ''life time'' of asphalt. This decrease is more obvious while value of actioning tension is lower, and better moistening of bitumen-mineral material by liquid.

引用

页码：255 / 261

页数：7