The resulting product is hemihydrate of calcium sulphate and it is known as first settle plaster or __________________(a) Plaster of Paris(b) Latex(c) Potassium sulphate(d) Parian cementThis question was addressed to me at a job interview.My question comes from Special Materials for Plastered Surfaces topic in division Pointing and Plastering of Construction & Building Materials

The resulting product is hemihydrate of calcium sulphate and it is kno

1.	The resulting product is hemihydrate of calcium sulphate and it is known as first settle plaster or __________________(a) Plaster of Paris(b) Latex(c) Potassium sulphate(d) Parian cementThis question was addressed to me at a job interview.My question comes from Special Materials for Plastered Surfaces topic in division Pointing and Plastering of Construction & Building Materials
Answer» Correct option is (a) Plaster of Paris Easiest explanation: When water is added to plaster of Paris, it hardens in three to four minutes. Hence, to extend the setting TIME, SUITABLE retarders are added to it. The USUAL retarders are clay, citric acid, glue, gum, starch and sugar.

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