Concrete mortar drying and mixing procedure - includes adding fine white calcined chalk to cement mixt. to absorb moisture before final mixing

摘要

The method of drying the ingredients of a mixture for making concrete mortar includes first mixing them with a stoichiometric quantity of calcined chalk. This extracts moisture from the sand and cement powder, and heat is generated during transformation to calcium hydrate so that time and energy is saved in the treatment. The chalk is ground, and is in the form of fine white powdered chalk and is added to the ingredients before the final mixing operation.