水硅钙石

The super light water repellent hard afwillite type calcium silicate thermal insulation product is successfully made from quart powder and lime as raw materials, alkali-resistant glass fiber, few of paper fiber and additives by means of dynamic water heating synthesis at pilot plant.

利用石英粉、石灰为主要原料，掺加耐碱玻纤及少量纸纤维，添加少量外加剂，采用动态水热合成法，中试生产成功超轻憎水硬硅钙石型硅酸钙绝热制品。

The thermodynamic calculations of the Gibbs free energies for typical multiple phase equilibria in silicate systems were performed,including (1)melting reactions of silicate reactant in processing of the glass-ceramics;(2)sintering reactions in utilizations of nepheline syenite and high- flyash;(3)crystallizing reactions of tobermorite and xonotlite .

对硅酸盐体系的典型多相平衡反应进行了热力学计算，包括：(1)微晶玻璃制备过程中的硅酸盐熔融反应；(2)霞石正长岩和高铝粉煤灰利用技术中的硅酸盐烧结反应；(3)S iO2-CaO-H2O体系和KA lS i3O8-CaO-H2O体系雪硅钙石、硬硅钙石的水热晶化反应；(4)高铝粉煤灰和霞石正长岩烧结产物的溶解反应；(5)Na[A l4]-A l3-H2O体系和Na2SO4-Ca2-H2O体系中α-A l3和CaSO4.2H2O的析晶反应。

Results show that paste containing ground limestone can be destroyed at the temperature of 0-10℃ by the sulphate attack of thaumasite form.

结果表明：掺石灰石粉的水泥石在0-10℃的温度范围内，可形成碳硫硅钙石的硫酸盐侵蚀破坏。

Effects of temperatures on thaumasite formation were investigated.X-ray diffraction,scanning electron microscope,energy dispersive spectrum and laser Raman spectrum analysis were used to identify thaumasite in paste sample stored in 10% of MgSO 4 solution at different temperatures.

研究了环境温度对碳硫硅钙石形成的影响。降浸泡于不同温度的质量分数为10%的MgSO 4 溶液中的含石灰石粉水泥石试样进行X射线衍射分析、扫描电子显微分析、能谱分析和激光Raman光谱分析。

The formation mechanism of spherical agglomerates of xonotlite in dynamic hydrothermal synthesis has been systematically studies.

系统研究了动态水热合成硬硅钙石球形团聚体的形成机理。

The study compared the xonotlite synthesized by crystal silicon and amorphous silicon mixed with calcium oxide and treated in the sealed steel alloy autoclaves, the synthesize temperature and time were studied.

采用晶体与非晶态硅质原料，与氧化钙在高压釜中进行动态水热反应，合成晶须状硬硅钙石晶体，研究合成温度，保温时间等工艺参数对最终结晶产物的影响，并使用XRD、SEM对水热合成的产物进行分析。

Adding silica sand to cement whose temperature ranges from 110～150℃or maintaining it in 110℃about three days, cement can form the fiber C5S6H5. After temperature above 150℃, it form thick needle C6S6H which can to some extent effectively curb the high-temperature recession of cement strength.

在水泥中加入硅砂时，在110～150温度范围内，或110℃养护时间超过3天，水泥石中分别出现了由纤维针状结晶C5S6H5，温度超过150℃后，又出现粗大针状结晶硬硅钙石C6S6H，这两种产物在一定程度上有效地抑制水泥石强度的高温衰退现象。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。