Influence of Fly Ash and Silica Fume on Anti-Corrosion Characteristics of Mortar in Sulfuric Acid

被引：0

作者：

Min Hongguang ^{[1
]}

Song Zhigang ^{[1
]}

Li Yantao ^{[1
]}

Shen Yijie ^{[2
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Civil Engn & Architecture, Kunming 650224, Peoples R China

[2] First Affilated Hosp Kunming Med Coll, Kunming 650224, Peoples R China

来源：

ADVANCES IN BUILDING MATERIALS, PTS 1-3 | 2011年 / 261-263卷

关键词：

mortar; sulfuric acid; fly ash; silica fume; corrosion; SULFATE ATTACK;

D O I：

10.4028/www.scientific.net/AMR.261-263.306

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A long term immersion test of mortar in sulfuric acid is carried out to investigate the effects of fly ash (FA) and silica fume (SF) on anti-corrosion characteristics. The mortar specimens have water to binder ratios (W/B) ranging from 0.5 to 0.7 and are divided into two series. Series one uses admixture of FA with replacement ratio from 0 similar to 0.3 and series two uses admixture of SF with replacement ratio from 0 similar to 0.1. The specimens are soaked in sulfuric acid with a pH value of 3.50 for 150 days. The portable pH meter is used to monitor the pH changing of the soak solution. The titrating sulfuric acid with concentration of 0.125mol/l is added to maintain the original pH value of the solution and then sulfuric acid consumption of specimens is recorded. A partial correlation analysis of experiment results shows that the effects of FA and SF on mortar resistance to sulfuric acid would change with the water binder ratio.

引用

页码：306 / +

页数：2

共 11 条

[1]

[Anonymous], 2005, GBT 2419

[2]

[Anonymous], 1999, GB.T. 17671

[3]

Feng Chen, 2006, COAL ASH CHINA, V6, P11

[4]

Hewayde E., 2003, 2003 ASCE INT C PIP, V1, P504

[5] An experimental study of combined acid and sulfate attack of concrete [J].

Hill, J ;

Byars, EA ;

Sharp, JH ;

Lynsdale, CJ ;

Cripps, JC ;

Zhou, Q .

CEMENT & CONCRETE COMPOSITES, 2003, 25 (08) :997-1003

[6] Acid attack on pore-reduced cements [J].

Israel, D ;

Macphee, DE ;

Lachowski, EE .

JOURNAL OF MATERIALS SCIENCE, 1997, 32 (15) :4109-4116

[7]

Qingguo Ma, 2002, STAT MANAGERS DATA A

[8]

[肖佳 Xiao Jia], 2005, [建筑材料学报, Journal of building materials], V8, P440

[9]

Xiaoyan Hou, 2007, HENAN BUILDING MAT, V2, P37

[10]

Zhigang Song, J WUHAN U TECHNOLOGY

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