FACTORS AFFECTING THAUMASITE FORM OF SULFATE ATTACK ON CEMENT-BASED MATERIAL

Gao Xiaojian

doi:10.13204/j.gyjz200612001

Volume 36 Issue 12

Dec. 2014

Turn off MathJax

Article Contents

Article Navigation > INDUSTRIAL CONSTRUCTION > 2006 > 36(12): 1-4,33

Gao Xiaojian, . FACTORS AFFECTING THAUMASITE FORM OF SULFATE ATTACK ON CEMENT-BASED MATERIAL[J]. INDUSTRIAL CONSTRUCTION, 2006, 36(12): 1-4,33. doi: 10.13204/j.gyjz200612001

Citation:

Gao Xiaojian, . FACTORS AFFECTING THAUMASITE FORM OF SULFATE ATTACK ON CEMENT-BASED MATERIAL[J]. INDUSTRIAL CONSTRUCTION, 2006, 36(12): 1-4,33. doi: 10.13204/j.gyjz200612001

Gao Xiaojian, . FACTORS AFFECTING THAUMASITE FORM OF SULFATE ATTACK ON CEMENT-BASED MATERIAL[J]. INDUSTRIAL CONSTRUCTION, 2006, 36(12): 1-4,33. doi: 10.13204/j.gyjz200612001

Citation:

Gao Xiaojian, . FACTORS AFFECTING THAUMASITE FORM OF SULFATE ATTACK ON CEMENT-BASED MATERIAL[J]. INDUSTRIAL CONSTRUCTION, 2006, 36(12): 1-4,33. doi: 10.13204/j.gyjz200612001

PDF( 0 KB)

FACTORS AFFECTING THAUMASITE FORM OF SULFATE ATTACK ON CEMENT-BASED MATERIAL

doi: 10.13204/j.gyjz200612001

Gao Xiaojian¹,

1.
1 School of Civil Engineering,Harbin Institute of Technology Harbin 150090;
2.
2 Key Lab.of Silicate Materials Sci.and Engineering of Ministry of Education,Wuhan Univ.of Tech. Wuhan 430070

Received Date: 2006-06-07
Publish Date: 2006-12-20

Abstract

Abstract

The limestone filler cement mortars with different mixing proportions were immersed into different sulfate solutions for one year,and their visual appearances, strength and mineral composition were measured at intervals.The results show that the resistance of mortar to thaumasite form of sulfate attack(TSA) increases with the reduction of water-cement ratio.The relative resistance to TSA of the cements is outlined below,from best to worst: sulphoaluminate cement,sulfate resisting Portland cement,ordinary Portland cement.The resistance to TSA of mortar is remarkably improved by the addition of silica fume or ground granulated blastfurnace slag(ggbs),and the better the resistance to TSA,the more the addition of ggbs is.Magnesium salts reinforce the thaumasite formation and the thaumasite form of sulfate attack in the cement mortars.It reveals that TSA may also occur to structures at temperatures of higher than 15℃.The influence of temperature on the whole resistance to sulfate attack of mortar is related to the material composition.
- sulfate attack,
- thaumasite,
- material composition,
- erosive environment

FullText(HTML)

References(9)

References

[2] Norah C.The Occurrence of Thaumasite in Modern Construction-A Review.Cement and Concrete Composites,2002,24 (4):393-402

Erlin B,Stark D C.Identification and Occurrence of Thaumasite in Concrete.Highway Research Record,1965,113:108-113

[3] 马保国,高小建,何忠茂,等混凝土在SO24-和CO23-共同存在下的腐蚀破坏.硅酸盐学报,2004,32(10):1 219-1 224

[4] 胡明玉,唐明述,龙伏梅.新疆永安坝混凝土的碳硫硅钙石型硫酸盐腐蚀.混凝土,2004(11):5-7

[5] Loudon N.A Review of the Experience of Thaumasite Sulfate Attack by the UK Highways Agency.Cement and Concrete Composites,2003,25(8):1051-1058

[6] Bensted J.Thaumasite-Background and Nature in Deterioration of Cements,Mortars and Concretes.Cement and Concrete Composites,1999,21(1):117-121

[7] Irassar E F,Bonavetti V L,Trezza M A,et al.Thaumasite Formation in Limestone Filler Cements Exposed to Sodium Sulphate Solution at 20℃.Cement and Concrete Composites,2005,27(1):77-84

[8] Kakali G,Tsivilis S,Skaropoulou A,et al.Parameters Affecting Thaumasite Formation in Limestone Cement Mortar.Cement and Concrete Composites,2003,25(8):977-981

[9] 高小建.混凝土TSA侵蚀破坏影响因素与机理研究:[博士后出站报告].武汉:武汉理工大学,2005

Relative Articles

Supplements(0)

Cited By

Proportional views