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GSF胶结料是利用石膏尾矿、高炉矿渣、粉煤灰等工业废渣与少量激发剂混合配制的一种新型胶凝材料。着重研究了GSF胶结料水化动力学特征、水化产物和硬化机理,研究表明GSF胶结料水化硬化机理有别于普通硅酸盐水泥。 相似文献
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Investigation of Phosphate Cement-based Binder with Super High Early Strength for Repair of Concrete 总被引:1,自引:0,他引:1
姜洪义 《武汉理工大学学报(材料科学英文版)》2001,(3)
Magnesium phosphate cement- based binder ( MPB ) for repair of concrete was prepared by proportionally mixing over burned MgO powder ( M) with NHH2 PO4 powder ( P) and set modifying admixtures . It is characteristic by excellent properties such as rapid setting, high strength and high bond strength to old concrete .. The study is focused on the key factors influencing the setting time and strength of MPB, the bond property of MPB to old concrete and the kinetic feature of the hydration of MPB, 相似文献
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Mg2Si固相反应的热力学评估及工艺优化 总被引:8,自引:0,他引:8
固相反应法的引入,是为了解决采用传统方法制备Mg-Si基热电材料过程中带来的Mg的氧化及碳化等问题。从热力学角度对固相反应过程中涉及到的Mg-Si-O-C体系进行了评估,并探讨了制备工艺对材料组成的影响。 相似文献
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利用石膏尾矿生产新型墙体材料的研究 总被引:1,自引:0,他引:1
本文对利用石膏尾矿矿渣等工业废弃物制备建筑砖、砌块等墙体材料的原材料组成、配合比、工艺参数、制品性能进行了试验研究。 相似文献
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低折射率疏水SiO_2薄膜的制备和表征 总被引:1,自引:0,他引:1
为了制备低折射率疏水SiO_2薄膜,将正硅酸乙酯(TEOS)和二甲基二乙氧基硅烷(DDS)在碱性条件下共水解缩聚,再以六甲基二氮硅烷(HMDS)做进一步的改性,采用提拉浸渍工艺在玻璃基底上制备单层增透膜。通过对溶胶粘度随老化时间的变化规律及HMDS添加对薄膜接触角影响等的分析与研究,制备了接触角最大的低折射率薄膜;同时对薄膜的红外特性、透过率、折射率进行了表征。结果表明:TEOS和DDS共水解缩聚提高了膜层疏水性,经HMDS改性后,薄膜的接触角为149°,折射率为1.12。 相似文献
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姜洪义 《武汉理工大学学报(材料科学英文版)》2011,26(4):684-686
Absorption/desorption properties of some humidity controlling materials which contain gypsum as basic cement materials and activated Sepiolite powder as humidity controlling media were tested. The kinetics curve of moisture adsorption/desorption were drawn and humidity controlling performance in nature environment was verified. The experimental results show that moisture absorption/desorption rates are increased, and the speed is also accelerated. These materials, which can adjust environmental humidity effectively, are new ones with good humidity controlling performance. 相似文献
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改性海泡石粉体的孔结构与调湿性能 总被引:1,自引:0,他引:1
用CaCl2溶液改性海泡石粉,研制出一种具有较强吸附能力的调湿材料。用BET吸附测试仪测试样品的孔结构,静态吸附法测试其吸附性能。结果表明:改性后的海泡石粉孔结构发生明显改变,吸、放湿率增大,吸附速度加快,CaCl2的加入量对样品的调湿性能有显著影响。 相似文献
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