anhydrite cement

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

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。

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。

Preliminary Study of Making Anhydrite Cement from Phosphogypsum

磷石膏制硬石膏水泥的初步研究

Study on White Anhydrite Cement

硬石膏白水泥的研究

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。

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