Compositions: coating or plastic – Coating or plastic compositions – Metal-depositing composition or substrate-sensitizing...
Patent
1978-04-21
1980-07-01
Poer, James
Compositions: coating or plastic
Coating or plastic compositions
Metal-depositing composition or substrate-sensitizing...
106 98, C04B 7352
Patent
active
042104564
ABSTRACT:
A method for controlling the setting of a cementitious composition of matter, the present invention 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 effective 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.
REFERENCES:
patent: 3141857 (1964-07-01), Sommer
patent: 3151995 (1964-10-01), Nemeth
patent: 3432317 (1969-03-01), Kelly et al.
patent: 4073658 (1978-02-01), Ohtani et al.
Darnell Kenneth E.
Poer James
Ultra Mortar, Inc.
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