石膏水泥

Hydration behavior and related physical properties of cement at lower temperatures (28℃) with natural gypsum replaced by calcined gypsum and calcined alunite were studied,and XRD,DTA and SEM measurement analyses were conducted.

摘 要：用烧石膏和烧明矾石代替天然二水石膏进行了水泥常温和较低温度(28℃)下的有关物理性能试验，并借助于XRD、DTA和SEM测定分析了水化产物相。

The properties of anhydrite Ⅱ with white protland cement as accelerating agent are studied,and the durable stucco gypsum in outdoor condition are prepared successfully.

研究白水泥等作激发剂的难溶性无水石膏的性能，并制备出用于室外条件下的耐久型粉刷石膏。

The invention discloses a determining method for the plastic contraction stress of the cement base material, which can be applied to the measuring method for the plastic pressure of the cement base material and the analogous materials such as calcareousness, gypsum, soluble glass, magnesium matter gel material, clay, etc in the plastic condition.

本发明公开了一种水泥基材料塑性收缩应力的测定方法，可用于水泥基材料及其类似材料，如石灰、石膏、水玻璃、镁质胶凝材料、粘土等，塑性状态下的塑性收缩应力的测试方法。

As raw materials,and under the condition of 1 250 ℃,the high iron belite aluminate cement is made,whose mineral ingredients are 51 %～55 % of C_2S,20 %～30 % of C_4A_3,and 12 %～25 % of C_4AF;and whose strength in 1 d cement can reach(35 MPa),and that of 28 d cement can reach(66 MPa).

用高碳粉煤灰及石灰石、石膏等为原料，在1 250℃条件下烧成了高铁贝利特硫铝酸盐水泥，其主要矿物组成C2S为51%~55%，C4A3-S为20%~30%，C4AF为12%~25%；水泥1 d强度达35 MPa，28 d强度达66 MPa。

Firing belite sulphoaluminate cement with dusulphurize ash displacing gypsum and part of limestone was studied in this article.

刘辉敏，利用脱硫灰烧制贝利特-硫铝酸盐水泥研究了脱硫灰替代石膏和部分石灰石烧制贝利特-硫铝酸盐水泥。

In this paper, properties of composite binder and ordinary silicate cement were compared and the effect of dihydrate gypsum on properties of composite binder was emphatically studied.

采用硅酸盐水泥＋粒化高炉矿渣粉＋硅灰制成复合胶凝材料，与普通硅酸盐水泥进行性能比较研究，并重点研究了二水石膏对复合胶凝材料性能的影响。

Carried on detailed analysis, finding out the problem of the domestic to take off sulphur gypsum apply not enough and existently, putting forward solution and suggestion.

对脱硫石膏替代部分水泥作为矿山填充胶结材料的利用途径做了较为详细的试验研究，验证了该方案的可行性，并对脱硫石膏的综合利用途径进行了总结和探讨。

CaO,SO3 in the clinker and the granularity,specific surface area,granulometric grading,admixture,plaster of cement,these factors will all effect the ISO cement strength,so we have a systemic and optimizing subject.

CaO、SO_3微量组分，煅烧温度，以及水泥制备中的细度、比表面积、颗粒级配、混合材、石膏等对水泥ISO强度都有影响，因此这是一个系统的优化的课题。

The article prepared the composite cement which is composed of phosphoaluminate-portland clinkers, gypsum and additive.

以磷铝酸盐水泥和硅酸盐水泥熟料为原料，并掺入石膏和外加剂，磨制复合水泥。

PLASTERWORKS MADE FROM CEMENT MORTARS, LIME MORTARS, MIXED GYPSUM AND SLAKED LIME MORTARS.

水泥砂浆、石灰砂浆、混合石膏及熟石灰砂浆制成的石膏制品。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。