Investigation of PAT for Advanced Sulphoaluminate MDF Cement

武汉理工大学学报-材料科学版(英文版), 2005, 20(1): 104-105.

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1.School of Materials Science and Engineering, Wuhan University of Technoloy, Wuhan 430070,China

2.School of Materials Science and Engineering, Wuhan University of Technoloy, Wuhan 430070,China

3.School of Materials Science and Engineering, Wuhan University of Technoloy, Wuhan 430070,China

基金项目: 国家高技术研究发展计划(863计划)(2002AA335050)

Investigation of PAT for Advanced Sulphoaluminate MDF Cement

The method of examining micro-pores in sulphoaluminate MDF cement by means of the Positron Annihilation Technique (PAT) was discussed.The results show that the intensity I2 of positrons annihilation with moderate life-span (τ2≈330Ps) increases regularly with the addition of the numbers of micro-pores (less than 250(A)). Therefore, the value of I2 may be used to opitomize the compactness and integrity of the MDF cement structure. At the same time, the experiment result of PAT was compared with that of Mercury Intrusion Porosimeter (MIP).

参考文献

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[4]	SONG Shao-min,LIU Juan-hong,ZHANG XI-qing.Performance of the Cement Matrix Composite Material With Rubber Powder[J].武汉理工大学学报(材料科学版)英,2004(01):77-80.
[5]	Huang Cong-yun,YUAN Run-zhang,LONG Shi-zong.The Pore Structure and Hydration Performance of Sulphoaluminate MDF Cement[J].武汉理工大学学报(材料科学版)英,2004(01):83-85.

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Investigation of PAT for Advanced Sulphoaluminate MDF Cement

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