Resíduos de gesso de construção civil: minimização e  estudos de lixiviação

Carlos Eduardo Rubio Senes; Cleber Antônio Lindino

doi:10.5433/1679-0375.2017v38n1p43

Construction waste gypsum: minimization and leaching studies

Authors

Carlos Eduardo Rubio Senes Universidade Estadual do Oeste do Paraná/Campus Toledo
Cleber Antônio Lindino Professor Associado Universidade Estadual do Oeste do Paraná/Campus Toledo

DOI:

https://doi.org/10.5433/1679-0375.2017v38n1p43

Keywords:

Cure time (Phase), Solid residue, Additives, Leaching

Abstract

Plaster is a very useful material in construction, but it is responsible for producing waste in the
manufacturing process and also the demolition works. This work seeks alternatives that reduce the
production of waste in the manufacturing process using plaster additives in their composition and also
to assess the damage caused by improper disposal of waste produced in buildings demolition, due to
its possible use in fish farms. Different modified plasters were evaluated on various parameters such as
cure time, appearance, resistance and morphological changes. The modified plasters with diatomaceous
earth show good results. Waste of plaster and pure plaster were submitted to leaching tests at different
pH values to evaluate its behavior in two different periods of time. It was analyzed parameters such as
conductivity, turbidity and calcium contents in the leached samples, checking that the plaster and your
residue influence the aquatic environment. It was found that pH, conductivity and turbidity are altered
when subjected to gypsum concentrations.

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Author Biographies

Carlos Eduardo Rubio Senes, Universidade Estadual do Oeste do Paraná/Campus Toledo

Graduação em Quimica - Bacharelado

Cleber Antônio Lindino, Professor Associado Universidade Estadual do Oeste do Paraná/Campus Toledo

Departamento de Química

Doutor em Ciências

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Published

2017-10-04

How to Cite

Senes, C. E. R., & Lindino, C. A. (2017). Construction waste gypsum: minimization and leaching studies. Semina: Ciências Exatas E Tecnológicas, 38(1), 43–54. https://doi.org/10.5433/1679-0375.2017v38n1p43

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Issue

Vol. 38 No. 1 (2017)

Section

Original Article

License

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