gypsum anhydrite 中文意思是什麼
gypsum anhydrite
解釋
無水石膏-
Under the circumstances, gypsum or anhydrite could accumulate to form beds many meters thick, without any co-precipitation of halite.
在這種環境下，石膏或硬石膏可以堆積成許多米厚的巖層，而沒有任何石鹽伴生沉澱。 -
Gypsum and anhydrite
石膏和硬石膏 -
The result shows, for this composite cement system, retarding action of dihydrate gypsum is more obvious than that of anhydrite, meanwhile, anhydrite tends to cause setting time short and water needed increased
結果表明：二水石膏對該種復合體系水泥的緩凝作用比硬石膏明顯，硬石膏易引起復合體系水泥急凝和需水量增大。 -
The influence of different gypsum on strengh of portland - sulphoalminate composite cement system is complicated, related with aluminiferouse mineral in cement system and the so4 ( superscript 2 - ) concentration of its hydrated solution ; in distilled water and maximum lime wash, the dissolution rate of dihydrate gypsum is higher than that of anhydrite but the dissolubility is lower
石膏品種對硅酸鹽硫鋁酸鹽復合體系水泥強度的影響較復雜，與水泥體系中含鋁礦物及其水化溶液中so4 （上標2 - ）離子濃度有關；在蒸餾水和飽和石灰水中，二水石膏的溶解速度比硬石膏快，溶解度比硬石膏低。 -
The effects of gypsum on fluidity of cement mortar and setting time of cement paste are not significant when it used as retarder of cement. whereas, when 0. 3 % ca - lignosulphonate or ca - solassate added in cement used anhydrite gypsum as retarder, loss of fluidity of cement mortar is rapid, quick setting is occurred
但是，在硬石膏調凝水泥中摻加0 . 3的木鈣和糖鈣緩凝減水劑卻能使水泥砂漿流動度經時損失加快，凈漿表現出促凝現象，發生外加劑與水泥的不相容問題。
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