Carbonation Resistance of Sulphoaluminate Cement-based High Performance Concrete

武汉理工大学学报-材料科学版(英文版), 2009, 24(4): 663-666. doi: 10.1007/s11595-009-4663-y

^1, , ^2, , ^3, , ^4,

1.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China;School of Materials Science and Engineering, University of Jinan, Jinan 250022, China

2.School of Materials Science and Engineering, University of Jinan, Jinan 250022, China

3.School of Materials Science and Engineering, University of Jinan, Jinan 250022, China

4.School of Materials Science and Engineering, University of Jinan, Jinan 250022, China

基金项目: the National Natural Science Foundation of China (50872043)

Carbonation Resistance of Sulphoaluminate Cement-based High Performance Concrete

ZHANG Decheng ^1, , XU Dongyu ^2, , CHENG Xin ^3, , CHEN Wen ^4,

1.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China;School of Materials Science and Engineering, University of Jinan, Jinan 250022, China

2.School of Materials Science and Engineering, University of Jinan, Jinan 250022, China

3.School of Materials Science and Engineering, University of Jinan, Jinan 250022, China

4.School of Materials Science and Engineering, University of Jinan, Jinan 250022, China

Keywords： sulphoaluminate cement

The influences of water/cement ratio and admixtures on carbonation resistance of sulphoaluminate cement-based high performance concrete(HPC)were investigated.The experimental results show that with the decreasing water/cement ratio,the carbonation depth of sulphoaluminate cement-based HPC is decreased remarkably,and the carbonation resistance capability is also improved with the adding admixtures.The morphologies and structure characteristics of sulphoaluminate cement hydration products before and after carbonation were analyzed using SEM and XRD.The analysis results reveal that the main hydration product of sulphoaluminate cement,that is ettringite(AFt),de-composes after carbonation.

参考文献

[1]	J. Pera;J. Ambroise .New applications of calcium sulfoaluminate cement[J].Cement and Concrete Research,2004(4):671-676.

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Carbonation Resistance of Sulphoaluminate Cement-based High Performance Concrete

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