Composition and expansion coefficient of rust based on X-ray diffraction and thermal analysis

被引：188

作者：

Zhao, Yuxi ^{[1
]}

Ren, Haiyang ^{[1
]}

Dai, Hong ^{[1
]}

Jin, Weiliang ^{[1
]}

机构：

[1] Zhejiang Univ, Inst Struct Engn, Hangzhou 310058, Zhejiang, Peoples R China

来源：

CORROSION SCIENCE | 2011年 / 53卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Steel reinforced concrete; X-ray diffraction; Rust; REINFORCED-CONCRETE STRUCTURES; ANALYTICAL-MODEL; REBAR CORROSION; COVER CRACKING; CARBON-STEEL; TIME;

D O I：

10.1016/j.corsci.2011.01.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Corrosion production can make cracks in the concrete cover. Because their volumes are higher than that of the original metal. Therefore, the rust expansion coefficient is one of the key parameters in concrete cracking model caused by steel corrosion. X-ray diffraction and the thermal analysis were used to characterize eight corrosion products collected from various different environments. The results show that the compositions and the expansion coefficients for rust samples are different due to their different servicing environments. The rust expansion coefficients corresponding to the different environments were proposed, which can be applied to steel corrosion induced concrete cracking model. (c) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1646 / 1658

页数：13

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