Durability of normal strength self-compacting concretes and their impact on service life of reinforced concrete structures

被引：43

作者：

Sideris, Kosmas K. ^{[1
]}

Anagnostopoulos, Nikolaos S. ^{[2
]}

机构：

[1] Democritus Univ Thrace, Dept Civil Engineers, Lab Bldg Mat, GR-67100 Xanthi, Greece

[2] Sika Hellas SA, Athens 14568, Greece

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2013年 / 41卷

关键词：

Self-compacting concrete; Durability; Service life; Carbonation; Chlorides; INTERFACIAL TRANSITION ZONE; CARBONATION;

D O I：

10.1016/j.conbuildmat.2012.12.042

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

It has been widely reported that self-compacting concrete mixtures usually show improved durability characteristics as compared with normally vibrated concretes with the same cement content and the same w/c ratio. The main target of this research is the evaluation of the durability properties of medium strength self-compacting concretes and their comparison with those measured on reference normally vibrated concretes. Eight different self-compacting mixtures were produced using different types of cements and aggregates. The durability properties assessed were the water absorption, the carbonation resistance and the chloride induced corrosion resistance. These were compared with the relevant properties measured on normally vibrated concretes of the same strength class. The coefficients calculated were used to estimate the service life of reinforced concrete structures. The results indicated that self-compacting mixtures have a significant impact on the extension of the service life of concrete structures, especially when carbonation is considered as the main aggressive factor. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：491 / 497

页数：7

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