Hydrated fibrous mats for use in curing cement and concrete

Details Hydrated fibrous mats for use in curing cement and concrete Hydrated fibrous mats for use in curing cement and concrete

1990-11-09

1992-09-01

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

106731, 1621816, 4273936, 428284, 428288, 428290, 428292, 428532, 428534, 428703, B32B 1300, B32B 2304, B32B 516

Patent

active

051437805

ABSTRACT:
The present invention relates to methods to protect curing cement or concrete from excess evaporative water loss and/or from rain, excess heat loss, or excess heat gain. More particularly the method relates to coating curing cement or concrete with a layer (or layers) of a fibrous mass composed of ground cellulose, water, a viscosity enhancing polymer, a hygroscopic swelling agent and, optionally, additives selected on the basis of the properties desired (e.g., rain resistance, heat absorption from the sun, heat reflectance, or heat insulation). The invention also relates to compositions comprising a layer of cement or concrete and a layer (or layers) of such a fibrous mass.

REFERENCES:
patent: 3106486 (1963-10-01), Harren et al.
patent: 4169088 (1979-09-01), Hansen
patent: 4297399 (1981-10-01), Perz
patent: 4543159 (1985-09-01), Johnson et al.
patent: 4818595 (1989-04-01), Ellis

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