Surface scaling resistance of concrete subjected to freeze-thaw cycles and sustained load

被引：20

作者：

Kosior-Kazberuk, Marta ^{[1
]}

Berkowski, Piotr ^{[2
]}

机构：

[1] Bialystok Tech Univ, Wiejska 45E, PL-15351 Bialystok, Poland

[2] Wroclaw Univ Sci & Technol, Wyb St Wyspianskiego 27, PL-50370 Wroclaw, Poland

来源：

MODERN BUILDING MATERIALS, STRUCTURES AND TECHNIQUES | 2017年 / 172卷

关键词：

concrete durability; scaling; cyclic freezing and thawing; sustained load; combined action; HIGH-STRENGTH CONCRETE; FLY-ASH; DURABILITY; DAMAGE;

D O I：

10.1016/j.proeng.2017.02.060

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The concrete resistance to surface scaling under combined freeze-thaw cycles, sodium chloride solution and external flexural load was experimentally investigated. The test were carried out for non-air-entrained, air-entrained concretes and for concrete with steel fiber reinforcement. The test method for evaluation the resistance to scaling under combined environmental and mechanical actions was proposed. The analysis of the results obtained revealed that including the interaction of freezing and thawing and external flexural load makes change both in the character and the range of surface scaling process. The statistically confirmed synergistic effect of interaction of cyclic freezing and thawing and flexural stress which caused the acceleration of damage process was found. The beneficial effects of an air-entraining agent and steel fibers used for improving the resistance to scaling were stated. (C) 2017 The Authors. Published by Elsevier Ltd.

引用

页码：513 / 520

页数：8

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