Compósitos cimentícios leves reforçados com partículas de madeira de Eucalyptus grandis

The aim of this research was to characterize a lightweight cementitious composite reinforced with Eucalyptus grandis wood particles through the study of its physical and mechanical properties. Standard mix proportion was defined based on a composite with 30% cement and 70% wood, in volume, and different amounts of water and superplasticizer. Different particle sizes of Eucalyptus grandis sawdust were tested to increase the composite tensile strength. The superplasticizer used with the function of enhancing paste fluidity provided an increase up to 161.6% in the compressive strength and up to 205.9% and 123.46% in the static and dynamic modulus of elasticity of the composites. Tensile strength presented was 55.8% higher when sawdust particles retained on the 2.36mm sieve were used.