What is non-hydraulic cement?

Syed Sabaat Answered First
Non-hydraulic cements include such materials as (non-hydraulic) lime and gypsum plasters, which must be kept dry in order to gain strength, and oxychloride cements, which have liquid components. Lime mortars, for example, "set" only by drying out, and gain strength only very slowly by absorption of carbon dioxide from the atmosphere to re-form calcium carbonate through carbonization.
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How do you make hydraulic cement?

How to make hydraulic cement.Stir dry in a wheel barrel.50 lb bag portland80 lb bag masonry cement50 lb bag play sand or silica sand15 lb Plaster of Paris or Molding Plaster N… (MORE)