C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
261/52
C04B 7/352 (1980.01)
Patent
CA 1148176
METHOD FOR PRODUCING A STORABLE MORTAR ABSTRACT OF THE DISCLOSURE A method for controlling the setting of a cementitious composition of matter, the present inven- tion allows mixing of a mortar and retention thereof for a prolonged period of time before use, the mortar setting at least as rapidly as normally when applied to brick, block, or the like during the period of retention. The method involves the addition of an ef- fective amount of saccharide polymers having a size of from three glucose units to on the order of 25 glucose units to a cementitious mixture, the additive optionally including air entrainment agents and similar agents such as have been previously used in the formulation of mortars. The method further involves entraining air in the mortar mixture to a particular degree which allows control of the setting rate of the mortar mixture when evaporation from the mixture is controlled. The invention further provides cementitious compositions of matter capable of being stored in a plastic state for a prolonged period of time, the composition setting at least as rapidly as normally when applied to brick, block, or the like.
354829
G. Ronald Bell & Associates
Miller Richard L.
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