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Assessment of mix proportions for developing lightweight cementitious composites with wood wastes

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journal contribution
posted on 2017-01-01, 00:00 authored by M Garcez, Estela Oliari Garcez, A Machado, D Gatto
The main objective of this work was to assess mix proportions for developing lightweight cementitious composites, manufactured with Eucalyptus grandis sawdust. Different wood:cement, water:cement and admixture:cement ratios were used to evaluate physical (water absorption, void ratio and density) and mechanical (compressive strength, static and dynamic modulus of elasticity) properties of the cement-wood composites. Results shows that, bulk density is directly proportional to the compressive strength and elastic modulus, and inversely proportional to the percentage of timber, considering composites with same water:cement ratio, without superplasticizer. The performance of the cement-wood composites, regarding mechanical properties, can be improved if superplasticizer is used to increase paste fluidity. Higher values of bulk density are related to lower void ratio and water absorption and higher compressive strength and modulus of elasticity.

History

Journal

Revista Árvore

Volume

41

Issue

1

Article number

e410103

Pagination

1 - 9

Publisher

Sociedade de Investigações Florestais : Universidade Federal de Viçosa

Location

Viçosa, Minas Gerais, Brazil

ISSN

0100-6762

eISSN

1806-9088

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2017, [Sociedade de Investigações Florestais, Universidade Federal de Viçosa]

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