Durability of Alite-calcium Barium Sulphoaluminate Cement

The durability of the cement was mainly studied. Under 1.0 MPa of hydraulic pressure for 8 hours, water could penetrate completely through the sample made by portland cement, but could not penetrate through that by alite-barium sulphoaluminate cement. Under the condition of freezing and thawing cycl...

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Bibliographic Details
Published in:Journal of Wuhan University of Technology. Materials science edition 2009-12, Vol.24 (6), p.982-985
Main Authors: Lu, Lingchao, Lu, Zeye, Liu, Shiquan, Wang, Shoude, Cheng, Xin
Format: Article
Language:English
Subjects:
Barium
Calcium
Cement
Chemistry and Materials Science
Materials Science
X射线衍射分析
抗硫酸盐侵蚀
硅酸盐水泥
硫铝酸盐水泥
耐久性
阿利特
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Summary:The durability of the cement was mainly studied. Under 1.0 MPa of hydraulic pressure for 8 hours, water could penetrate completely through the sample made by portland cement, but could not penetrate through that by alite-barium sulphoaluminate cement. Under the condition of freezing and thawing cycle, the loss ratio of compressive strength of the cement was only about 17.3% at curing 28 d ages, but the loss of portland cement was as high as 29.5%. Alite-calcium barium sulphoaluminate cement also has an excellent resistance to sulfate attack. The coefficients of resistance to sulfate attack of the cement exceeded 1.0. Meanwhile, the composition and microstructure of the hardened paste of alite-calcium barium sulphoaluminate cement were analyzed by XRD and SEM.
ISSN:1000-2413
1993-0437
DOI:10.1007/s11595-009-6982-4