Many sulphates are important minerals, prominent among these being gypsum (calcium sulphate) and barytes (barium sulphate).
Under this term are comprehended all cements whose setting properties primarily depend on the hydration of calcium sulphate.
Another constituent of Portland cement which influences its setting time is calcium sulphate, naturally formed from the sulphur in the raw materials or fuel, or intentionally added to the finished cement as gypsum or plaster of Paris.
Nothing is added during or after grinding save a small amount (1 to 2%) of calcium sulphatein the form either of gypsum or of plaster of Paris, which is sometimes needed to make the cement slower-setting.
Illustration: Corrosion Adhering to Film Stripped from Panel Painted with Gypsum (Calcium Sulphate)] =Panel No.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "calcium sulphate" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
