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Hydraulicity of Wet-milling Ultra-fine Grouting Cement
引用本文:CHENYou-zhi HUShu-guang DINGQing-jun WANGHong-xi GUANXue-mao. Hydraulicity of Wet-milling Ultra-fine Grouting Cement[J]. 武汉理工大学学报(材料科学英文版), 2004, 19(2): 70-72. DOI: 10.1007/BF03000174
作者姓名:CHENYou-zhi HUShu-guang DINGQing-jun WANGHong-xi GUANXue-mao
作者单位:Wuhan University
基金项目:FundedbytheState“973Plan”(2 0 0 1CB6 1 0 70 4 )andtheExcellentYouthFoundationofWuhanScienceandTechnologyCom mission(No .2 0 0 2 5 0 0 1 0 1 0 )
摘    要:The physical and mechanical properties of wet-milling ultra-fine grouting cement were studied,and its microstructure was abserted through modern instrwnentation analysis such as scanning electronic micoscoty (SEM),X-ray diffraction and Hg-intrusion micromeritics ,The experimertal results indicate that wet-milling ultra-fine cement possesses high rheological properties and groutability,It can be filles densely in cracks of rock and hydrate fully,which may endow hydrated cemetnt with high mechanical strength Main hydration products of wetmilling ultra-fine cement are poorly crystalline G-S-H(I),acicular AFt and plank-shape Ca(OH)2,The dense crystal-netwonk structure can be formed in the rock gaps filled with cement psate ,but some weak regions exist owing to Ca(OH)2,The features of micro-pore structure of hydrated wet-milling ultra-fine cement are few big harmful pores,abundant harmless micro pores and little most possible pore radius.

关 键 词:水硬性 超细灌浆水泥 水合作用 湿式选矿 微孔结构
收稿时间:2005-02-10

Hydraulicity of wet-milling ultra-fine grouting cement
Chen You-zhi,Hu Shu-guang,Ding Qing-jun,Wang Hong-xi,Guan Xue-mao. Hydraulicity of wet-milling ultra-fine grouting cement[J]. Journal of Wuhan University of Technology. Materials Science Edition, 2004, 19(2): 70-72. DOI: 10.1007/BF03000174
Authors:Chen You-zhi  Hu Shu-guang  Ding Qing-jun  Wang Hong-xi  Guan Xue-mao
Affiliation:CHEN You-zhi HU Shu-guang DING Qing-jun WANG Hong-xi GUAN Xue-maoWuhan University of Technology
Abstract:The physical and mechanical properties of wet-milling ultra-fine grouting cement were studied, and its microstructure was observed through modern instrumentation analysis such as scanning electronic microscopy (SEM), X-ray diffraction and Hg-intrusion micromeritics. The experimental results indicate that wet-milling ultra-fine cement possesses high rheological properties and groutability. It can be filled densely in cracks of rock and hydrate fully, which may endow hydrated cement with high mechanical strength. Main hydration products of wet-milling ultra-fine cement are poorly crystalline C-S-H(I), acicular AFt and plank-shape Ca(OH)2. The dense crystal-network structure can be formed in the rock gaps filled with cement paste, but some weak regions exist owing to Ca(OH)2. The features of micro-pore structure of hydrated wet-milling ultra-fine cement are few big harmful pores, abundant harmless micro pores and little most possible pore radius. Funded by the State “973 Plan”(2001CB610704) and the Excellent Youth Foundation of Wuhan Science and Technology Commission (No. 20025001010)
Keywords:hydraulicity  wet-milling  ultra-fine grouting cement  hydration
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