查询词典 calcined gypsum

Experimental results show that,when calcined gypsum and calcined alunite were added by 5% alone or synchronously,the setting time of cement decreases remarkably and 3d compressive strength at different temperatures increases remarkably.

试验结果表明，烧石膏和烧明矾石单掺和复合双掺的掺入量为5%时，水泥的凝结时间明显缩短，3d耐压强度在各温度下均有显著提高。

The influence of phosphorous slag on the setting time of Portland cement and improvement by some additives such as sodium sulphate,calcined gypsum and calcined alunite and synthesized additive were studied.

磷渣是电炉制取黄磷工业的一种工业废渣，在用电炉法制取黄磷时，所得到的以硅酸钙为主要成分的熔融物，经淬冷为粒化电炉磷渣，简称磷渣[1，2]。

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 gypsum is calcined and crushed to create Plaster of Paris refer Appendix X

生石膏经煅烧和粉碎制成熟石膏（参照附件X 速成墙的碳排放量，成分概述，生石膏的加工）。

The fields of application of calcined FGD gypsum were gypsum wallboard,building plasters,self-leveling floor plaster,etc;The fields of application of uncalcined FGD-gypsum were cement, agricultural soil amendment, etc.

经煅烧的脱硫石膏的应用领域主要有：石膏墙板、建筑灰泥、自流平地板灰泥等；未经煅烧的脱硫石膏的应用领域主要有：水泥、农业土壤改良等。

By testing hydration rate and hydration temperature at different times,the effect of the retarders on the hydration process of calcined gypsum was studied,and by analyzing morphology and pore structure,the effect of the retarders on the microstructure of gypsum was also studied.

测定柠檬酸、聚合磷酸钠、骨胶3类缓凝剂对石膏性能的影响，通过不同水化时间的水化率和水化温度测定，研究了缓凝剂对建筑石膏水化过程的影响，采用SEM形貌分析和压汞法孔结构分析研究缓凝剂对石膏硬化体微结构的影响。

In pelletization process, slaked lime, clinker and calcined gypsum can be used as additives of which the hydration products of clinker have a binding effect of gypsum grains and a seed crystal effect for cement hydration. Thus, this technology is one of the best pelletization technologies known so far.

以熟石灰、水泥熟料、熟石膏为成粒助剂的成粒工艺，将磷石膏中和预处理统一于成粒过程中，熟料水化产物既对石膏颗粒起固化作用，又对水泥水化产生晶种效应，是国内外最好的成粒工艺技术之一。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。