Wood pulp fiber-cement composites

Conference · Sat Jan 01 00:00:00 EST 1983 · J. Appl. Polym. Sci.: Appl. Polym. Symp.; (United States)

OSTI ID:5062448

Coutts, R S.P.; Michell, A J

Certain inorganic materials, which are known to have significant advantages over other construction materials in energy costs of production and fabrication, are weak in tension and against impact. These weaknesses are alleviated by the use of reinforcing fibers, often asbestos, whose effects on public health are now matters of increasing concern. The cost of wood pulp fibers per unit of reinforcement is shown to compare favorably with those of other reinforcing fibers such as asbestos and glass. The comparative energy requirements for obtaining the fibers depends on the method used for separating the wood pulp fibers. Recent work, particularly in Australia, aimed at developing asbestos-free fiber-cement products based on wood pulp fibers is described. The products are classified according to whether the water used in mixing remains or is removed before the cement is allowed to harden. The inclusion of wood pulp fibers in a cementitious matrix gives a composite having a higher modulus of rupture and a higher quasi-static and impact fracture energy. The increases in these properties are less than those produced by the inclusion of asbestos or glass fibers but are, nonetheless useful. 39 references, 7 figures, 4 tables.

• Research Organization: CSIRO Division of Chemical and Wood Tech., Clayton, Australia
• OSTI ID: 5062448
• Report Number(s): CONF-8205234-Vol.2
• Journal Information: J. Appl. Polym. Sci.: Appl. Polym. Symp.; (United States), Vol. 37; Conference: 9. cellulose conference, Syracuse, NY, USA, 24 May 1982
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
36 MATERIALS SCIENCE
COMPOSITE MATERIALS
MATERIAL SUBSTITUTION
MECHANICAL PROPERTIES
WOOD
USES
ASBESTOS
CELLULOSE
CEMENTS
FIBERS
FRACTURES
REINFORCED CONCRETE
SCANNING ELECTRON MICROSCOPY
TENSILE PROPERTIES
WATER REMOVAL
BUILDING MATERIALS
CARBOHYDRATES
CONCRETES
ELECTRON MICROSCOPY
FAILURES
MATERIALS
MICROSCOPY
ORGANIC COMPOUNDS
POLYSACCHARIDES
REINFORCED MATERIALS
REMOVAL
SACCHARIDES
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360603 - Materials- Properties