anhydrite cement

Preliminary Study of Making Anhydrite Cement from Phosphogypsum

磷石膏制硬石膏水泥的初步研究

Through the examination of the sample's physical nature and hydration and the analysis of its hydration mechanism, it revealed that calcined phosphogypsum, slag, clinker, and chemical activators in a certain mixing ratio are ground finely to make the anhydrite cement with higher compression.

通过对样品的物理性能和水化产物的检测以及水化机理的分析表明：将高温煅烧磷石膏、矿渣、熟料和激发剂按一定的比例混合磨细可以制备出高强的硬石膏水泥。

The content of calcite cements varies from 4.0% to 16.0% in different strata, locally the content of anhydrite cement may be up to 11.5%~ 28.0%, and thus becomes the primary factor affecting the reservoir quality.

不同层段砂岩中的方解石胶结物含量为4.0%～16.0%，局部地区硬石膏胶结物含量可达11.5%～28.0%，成为影响储集性能的主要因素。

Influence of anhydrite and alumina cement content on the non-shrinkage grouting material

硬石膏与高铝水泥掺量对无收缩灌浆料性能的影响

Study on White Anhydrite Cement

硬石膏白水泥的研究

It had achievement under the study of G-N-M-J four-factor compound arousing system. It gains anhydrite cement, which coagulates in 30 minutes.

原有硬石膏G-N-M-J四元复合激发体系的改性研究已取得了较好的成果，得到了凝结时间控制在30min的硬石膏胶结料。

Effect of calcined anhydrite on Portland cement

煅烧硬石膏对硅酸盐水泥水化过程的影响

In this paper, we discuss the hydration mechanism of anhydrite ⅱ, study accelerating actions anhydrite ⅱ with different accelerating agent, fabricate the white anhydrite cement adding burned alunite and assimilation lime as the accelerating agents.

在探讨AⅡ无水石膏水化机理的基础上，研究了不同激发剂对AⅡ无水石膏的激发作用，采用内掺煅烧明矾石和消石灰制成了硬石膏白水泥。