Production of fibre-reinforced cementitious composition

Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond

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156 42, 156288, 1563066, 264324, 428284, 428289, 428446, 428703, B32B 1302, B32B 1314

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045282382

ABSTRACT:
A process for the production of a moldable fibre-containing cementitious composition in which at least one mat of a water-insoluble fibrous material is contacted with at least one surface of a shaped article of a moldable cementitious composition, the cementitious composition comprising a homogeneous mixture of at least one hydraulic cement, water in a proportion of not more than 25% by weight of the hydraulic cement in the composition, and at least one water-soluble or water-dispersible polymeric material in a proportion of at least 1% by weight of the hydraulic cement in the composition.
The moldable cementitious composition may be in the form of a sheet and in the process two or more sheets may be used with a fibrous mat being sandwiched between adjacent pairs of sheets of cementitious composition.
Also a moldable fibre-containing cementitious composition and fibre-reinforced cement product produced by curing of the composition.

REFERENCES:
patent: 4159361 (1979-06-01), Schupack
patent: 4312904 (1982-06-01), Meyer
patent: 4344804 (1982-08-01), Bijen et al.
patent: 4344910 (1982-08-01), Bijen et al.
patent: 4353748 (1982-10-01), Birchall et al.
patent: 4378401 (1983-03-01), Wright
patent: 4410366 (1983-10-01), Birchall et al.
Kirk-Othmer, Encyclopedia of Chemical Technology, vol. 5, pp. 163-193, Interscience 1972.
Encyclopedia of Chemical Technology, by Raymond E. Kirk, vol. 2, pp. 142-150, published 1948.

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