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Air cured fiber cement composites containing different types of cellulose fibers

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Document pages: 9 pages

Abstract: The purpose of this study is to test the feasibility of different cellulose fibers obtained from planted raw cellulose, mixed eucalyptus and Araucaria lanceolata pulp for fiber cement production through different new environmental protection curing processes. The purpose is to introduce cellulose fibers from different sources at a lower cost to produce "autoclave free fiber cement " (fcwa). The slurry used in the experiment contains about 8 cellulose by weight. The effect of waste marble powder on the properties of cement mixture was studied. The physical and mechanical properties of the product prepared by this method under different curing conditions were studied. The mechanical properties of Eucalyptus cellulose seem to provide the best binding forceon, especially after longer air-cure cycles. The results showed that the production of FCWA is very economical by using waste marble powders. And moreover, two new types of cellulose fibers (eucalyptus and araucaria celluloses; EuC and ArC, resp.), which provide a better density and packing in the fiber-cement leading to better modulus of rupture (MOR) and modulus of elasticity (MOE) values as virgin cellulose (ViC), are very usable for production of the fiber-cement in industrial scale.

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