Wet dispersion of plant pulp in concrete and use thereof

Details Wet dispersion of plant pulp in concrete and use thereof Wet dispersion of plant pulp in concrete and use thereof

1997-06-30

1999-04-27

Marcheschi, Michael

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106677, 106682, 106674, 106731, 106805, 106819, 106823, C04B 1602

Patent

active

058977015

ABSTRACT:
Pulp fibers derived from wood or non-wood plants or recycled paper products are individualized and dispersed in water, and mixed into cement-based mixtures using conventional mixing procedures at relatively low dosages of about 0.3-30 kg of fiber per cubic meter of concrete. Once individualized, the affinity of plant pulp fibers for water facilitates their dispersion in normal cement-based mixtures. Fresh cement-based materials incorporating the dispersed individualized plant pulp fibers provide desirable workability, resistance to segregation and bleeding, pumpability, finishability, and reduced rebound when pneumatically applied. Hardened cement-based materials incorporating the dispersed individualized plant pulp fibers provide improvements in crack resistance, toughness, impact resistance, fatigue life, abrasion resistance, and other mechanical, physical and durability characteristics.

REFERENCES:
patent: 3753749 (1973-08-01), Nutt
patent: 4369201 (1983-01-01), Kober
patent: 4400217 (1983-08-01), Kober
patent: 4985119 (1991-01-01), Vinson
patent: 5102596 (1992-04-01), Lempfer et al.
patent: 5643359 (1997-07-01), Soroushian et al.

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