gypsum

1.There are not only illite, but also asphalt, microcrystalline quartz, dolomite, calcite, anorthite, gypsum, and such as potential damage materials.

储层不仅含伊利，还发育沥青、微晶英、白云、方解、和膏等潜在损害物质。

2.R esults show that the modified cement with good durability, small expansion and low alkality can be made by use of gypsum and zeolite modifying alumina cement.

以膏和沸对高铝水泥改性，可配制出耐久性良好、具有微膨胀性的低碱度改性水泥。