【摘 要】
：
Using calcium hydroxide and sodium silicate as starting materials, two kinds of calcium silicate hydrates, CaO · SiO2 · H2O and 2CaO · SiO2 · 1.17H2O, were
【机 构】
：
School of Metallurgical Science and Engineering
论文部分内容阅读
Using calcium hydroxide and sodium silicate as starting materials, two kinds of calcium silicate hydrates, CaO · SiO2 · H2O and 2CaO · SiO2 · 1.17H2O, were hydro-thermally synthesized at 120 ℃. The reaction rule of calcium silicate hydrate in aluminate solution was investigated. The result shows that CaO · SiO2 · H2O is more stable than 2CaO · SiO2 · 1.17H2 O in aluminate solution and its stability increases with the increase of reaction temperature but decreases with the increase of caustic concentration. The reaction between calcium silicate hydrate and aluminate solution is mainly through two routes. In the first case, Al replaces partial Si in calcium silicate hydrate, meanwhile 3CaO · Al2 O3 · xSiO2 · (6-2x) H2 O (hydro-garnet) is formed and some SiO2 enters the solution. In the second case, calcium silicate hydrate can react directly with aluminate solution, forming hydro-garnet and Na2O · Al2O3 · 2SiO2 · nH2O (DSP). The desilication reaction of aluminate solution containing silicate could contribute partially to forming DSP.
其他文献
介绍了光纤陀螺在实际应用过程中的环境适应性问题,并从光子晶体光纤的结构特点出发,总结了光子晶体光纤的独特应用优势,指出将光子晶体光纤应用于光纤陀螺中可很好地解决温
2011年6月13日,国家自然科学基金委在西安进行了重点项目“直接驱动Z箍缩负载的快脉冲功率源关键技术研究”项目验收,并组织专家就电工学科脉冲功率技术学科的发展方向进行了
In-situ stress measurement using the hydraulic fracturing technique was made at Wanfu Coal Mine in Shandong Province,China.To solve problems caused by great mea
利用椭圆偏振光谱进行薄膜样品的测量数据分析拟合时,薄膜厚度与介电常数通常具有一定的关联性.不同色散模型的选取也会对拟合结果产生明显的影响,引起较大误差.介绍了唯一性
The paper investigates a semi on-line scheduling problem wherein the largest processing time of jobs done by three uniform machines M1, M2, M3 is known in advan
An algorithm was proposed to fast recognize three types of underwater micro-terrain, i.e. the level, the gradient and the uneven. With pendulum single beam bath
A ratio dependent predator-prey system with Holling type III functional response is considered.A sufficient condition of the global asymptotic stability for the
现存的数据提取算法,大都以方差贡献率作为评价准则,来衡量特征提取的效果.然而方差贡献率注重的是样本相关矩阵特征值的性质,并不能顾及到信息的度量问题.文中将Shannon信息
介绍了Al2O3陶瓷增韧技术和A12O3陶瓷增强金属基复合材料的研究进展,指出复合增韧是未来A12O3认陶瓷增韧技术的发展方向;金属表面自生Al2O3防护层技术是提高金属耐蚀性,降低
Plants with tolerance to low‐phosphorus(P) can grow better under low‐P conditions, and understanding of genetic mechanisms of low‐P tolerance can not only fa