Examination of Chloride-Induced Corrosion in Reinforced Geopolymer Concretes

被引：102

作者：

Kupwade-Patil, Kunal ^{[1
]}

Allouche, Erez N. ^{[2
]}

机构：

[1] Louisiana Tech Univ, Dept Civil Engn, ACBL, Ruston, LA 71272 USA

[2] Louisiana Tech Univ, ACBL, Ruston, LA 71272 USA

来源：

JOURNAL OF MATERIALS IN CIVIL ENGINEERING | 2013年 / 25卷 / 10期

关键词：

Polymer; Durability; Corrosion; Reinforced concrete; Chloride; Geopolymer; FLY-ASH; MORTAR;

D O I：

10.1061/(ASCE)MT.1943-5533.0000672

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The durability of steel reinforced-concrete specimens made from three alkali-activated fly ash (FA) stockpiles and ordinary portland cement (OPC) in cyclic wet-dry chloride environment was evaluated over a period of 12 months. Testing methods included electrochemical methods, chloride diffusion and contents analysis, chemical and mechanical analyses, and visual examination. Geopolymer concrete (GPC) specimens made from Class F FA exhibited lower diffusion coefficients, chloride contents, and porosity compared with their GPC Class C FA and OPC counterparts. Overall, GPC specimens displayed limited signs of leaching and corrosion product formation, whereas OPC specimens exhibited the formation of multiple corrosion products along with significant leaching.

引用

页码：1465 / 1476

页数：12

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