Characterization and use of swine deep bedding ashes in cementitious composites

Engenharia Agrícola

Débora C. G. De Oliveira²  Michelle S. Rodrigues¹  Sérgio F. Dos Santos²  Holmer Savastano Junior² 

[1] ,USP Faculdade de Zootecnia e Engenharia de Alimentos

关键词: composite;    rural construction;    residues;    swine production;    sustainability;    compósito;    construção rural;    resíduos;    suinocultura;    sustentabilidade;   

DOI  :  10.1590/S0100-69162012000500001

来源: SciELO

【 摘 要 】

The deep bedding is a swine alternative production, especially in the finishing phase, whose byproduct can be recycled, reducing the environmental impact. The objectives of this study were to characterize the ash coming from the controlled burning of the swine deep bedding (SDBA) based on rice husk, and to evaluate their performance in composites as a partial substitute for Portland cement (PC). To measure the differences between SDBA and rice husk ash (RHA) as a reference, we have characterized: particle size distribution, real specific density, x-ray diffraction, electrical conductivity, scanning electron microscopy, chemical analysis and loss on ignition. Samples were prepared for two experimental series: control, and another one with the partial replacement of 30% of SDBA in relation to the mass of the Portland cement. According to the results obtained for physical and mechanical characterization, the composites with SDBA can be used as a constructive element in the rural construction.

【 授权许可】

CC BY   
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