Estudo das caracterí­sticas quí­micas e fí­sicas da cinza da casca da castanha de caju para uso em materiais cimentí­cios - 10.4025/actascitechnol.v32i4.7434

Sofia Araujo Lima; João Adriano Rossignolo

doi:10.4025/actascitechnol.v32i4.7434

A study of the chemical and physical properties of cashew nut shell ash for use in cement materials - 10.4025/actascitechnol.v32i4.7434

Authors

Sofia Araujo Lima UFSCAR
João Adriano Rossignolo USP

DOI:

https://doi.org/10.4025/actascitechnol.v32i4.7434

Keywords:

agro-industrial ash, pozzolanicity, XrD, BET

Abstract

Ash occupies a prominent place among agro-industrial wastes, as it is derived from energy generation processes. Several types of ash have pozzolanic reactivity, and might be used as replacement material for cement, resulting in less energy waste and lower cost. This work aimed to investigate the physical and chemical properties of the cashew nut shell ash (CNSA), by performing the following measurement tests: chemical analysis, bulk density, specific mass, leaching and solubilization process, X-ray diffraction (XrD), specific surface area (BET) and pozzolanicity analysis with cement and lime. The results indicate a low reactivity of CNSA and the presence of heavy metals, alkalis and phenol.

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Author Biographies

Sofia Araujo Lima, UFSCAR

Arquiteta e Urbanista - UFC. Mestre em Arquitetura e Urbanismo - USP. Doutoranda do Depto de Engenharia Civil - UFSCar.

João Adriano Rossignolo, USP

Prof Dr do Curso de Arquitetura e Urbanismo - EESC/USP

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Published

2010-12-02

How to Cite

Lima, S. A., & Rossignolo, J. A. (2010). A study of the chemical and physical properties of cashew nut shell ash for use in cement materials - 10.4025/actascitechnol.v32i4.7434. Acta Scientiarum. Technology, 32(4), 383–389. https://doi.org/10.4025/actascitechnol.v32i4.7434

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Issue

Vol. 32 No. 4 (2010)

Section

Civil Engineering

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