Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Wastepaper fibres in cement products
AbstractWastepaper is an acceptable reinforcement for cement products. At fibre loadings of approximately 12% by mass the air cured cement composite has flexural strength of 18.2 MPa, fracture toughness value of approximately 1.0 kJ/m2, water absorption value of 25% and a density of 1.43 g/cm3. Quality wood fibre reinforcement (P. radiata kraft pulp) provides similar values of water absorption and density but has superior values of flexural strength (28 MPa) and fracture toughness (2.3 J/m2) at similar fibre content (12% by mass). The cost of wastepaper is, however, only 15–25% that of P. radiata kraft pulp and for certain applications must have an economic advantage over the more expensive kraft reinforcement.
Wastepaper fibres in cement products
AbstractWastepaper is an acceptable reinforcement for cement products. At fibre loadings of approximately 12% by mass the air cured cement composite has flexural strength of 18.2 MPa, fracture toughness value of approximately 1.0 kJ/m2, water absorption value of 25% and a density of 1.43 g/cm3. Quality wood fibre reinforcement (P. radiata kraft pulp) provides similar values of water absorption and density but has superior values of flexural strength (28 MPa) and fracture toughness (2.3 J/m2) at similar fibre content (12% by mass). The cost of wastepaper is, however, only 15–25% that of P. radiata kraft pulp and for certain applications must have an economic advantage over the more expensive kraft reinforcement.
Wastepaper fibres in cement products
Coutts, R.S.P. (Autor:in)
31.01.1989
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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