热电厂脱硫石膏与天然二水石膏相似，适合作水泥缓凝剂。
The FGD gypsum similar to the natural gypsum in common characteristics, and is adequately used as cement retarder.
缓凝剂对晶面的选择性吸附，改变了二水石膏晶体的生长习性和形貌。
The preferred adsorption of retarders on different faces of gypsum crystal changes growth habit of dihydrate crystal and its crystal morphology.
研究了用烧石膏代替二水石膏并掺入少量石灰石对水泥物理性能的影响。
The influences of adding calcined gypsum instead of dihydrate gypsum and adding a little limestone on the physical properties of cement were investigated.
缓凝剂在二水石膏晶胚表面的吸附，使其晶体生长受阻，成为水化的控制过程。
The adsorption of retarders on the surface of nuclei newly produced inhibits the crystal growth of dihydrate and accordingly controls the hydration process of gypsum.
研究了在硅酸盐水泥中使用硬石膏完全代替二水石膏对硅酸盐水泥性能的影响。
Substitute anhydrous gypsum for dihydrate gypsum in Potland cement production to study the effect of anhydrous gypsum on performance of Potland cement.
结果表明：可溶磷主要分布在二水石膏晶体表面，其含量随磷石膏粒度增加而增加。
Experimental results show that water_soluble P 2O 5 is distributed on the surface of dihydrate gypsum crystals. Its content increases with increase of size of phosphogypsum.
可溶磷降低二水石膏脱水温度和液相过饱和度，使二水石膏晶体粗化，硬化体强度降低。
It reduces dehydration temperature and solubility of dihydrate gypsum, makes gypsum crystals thick and wide, and reduces the strength of hardened body.
本文采用二次烧成工艺，以二水石膏为主要原料，在较低温度下制备白色釉面石膏陶瓷墙地砖。
By using the double firing process and dihydrate gypsum as the main raw material, white - glazed gypsum ceramic tiles for walls and floors are produced under relatively low temperature.
固化磷石膏磨制的水泥和天然二水石膏磨制水泥相比，二者的凝结时间最接近，强度有一定的提高。
Cement prepared with solidified phosphogypsum as retarder had similar setting time as cement prepared with natural gypsum and higher strength than them.
研究结果表明： 亚硫酸钙含量较多的脱硫灰可用作水泥的调凝剂，并且与二水石膏复掺后的效果更好。
The results obtained showed that the desulphurization residues containing a number of CaSO_3 may be used as a retarder, and be better by adding with gypsum.
研究结果表明，二水石膏对不同窑型水泥的凝结时间的影响类似，对立窑熟料的敏感性要大于回转窑熟料。
The results show that effect of gypsum on the setting time of different cements is similar and shaft kiln clinker is sensitive to gypsum larger than rotary kiln clinker.
实验表明，将废渣配成10％浓度的浆液与低浓度废硫酸进行反应，可制造含量达90％以上的优质二水石膏。
The result showed that if the waste slag compose of 10% fluid and react with low concentrated sulfuric acid, 90% dihydrate plaster would be prepared.
通过大量的化验室小磨配比试验，研究了脱硫石膏代替天然二水石膏作水泥缓凝剂对普通水泥、矿渣水泥各项性能的影响。
After many grinding mixture ratio tests in laboratories, the paper studies the effect on ordinary cement and slag cement of desulfurized gypsum as cement retarder, instead of raw gypsum.
同时，建议水泥生产厂家使用脱硫石膏造粒机，以便于脱硫石膏的生产应用。脱硫石膏在水泥中的应用节约了二水石膏原生资源，更为电厂节能减排作出贡献。
It is suggested that desulfurized gypsum granulators be used in cement plants, which may save raw gypsum resources and contribute to energy saving and emission reduction in power plants.
在硅酸盐水泥中，应用经过煅烧的石膏比二水石膏更能提高水泥的强度。为此，研究和分析了煅烧温度、保温时间对煅烧后的二水石膏在纯水中的溶解特性的影响。
The influence of the burning temperature and the time required for maintaining the temperature on the dissolution properties of various burnt gypsums is discussed and presented in this article.
二水磷石膏粉煤灰复合胶结材（PGF）是直接将未经处理的磷石膏通过加入粉煤灰和激发剂改性制得的新型胶结材。
The composite binder of dihydrate phosgypsum and fly ash (PGF) is a new kind of binder made from unpretreated phosgypsum, fly ash and activator.
二水磷石膏粉煤灰复合胶结材（PGF）是直接将未经处理的磷石膏通过加入粉煤灰和激发剂改性制得的新型胶结材。
The composite binder of dihydrate phosgypsum and fly ash (PGF) is a new kind of binder made from unpretreated phosgypsum, fly ash and activator.
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