Evaluation of the chemical strength of polymeric concretes in aggressive environments

Evaluation of the chemical strength of polymeric concretes in aggressive environments

The aim of this study was to evaluate the chemical strength of polymeric concretes. Four different concentrations of two unsaturated polyester resins (isophtalic and orthophtalic) , summing up eight chemical mortar compositions, were analyzed. Samples were submitted to alkaline and saline solution...

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Main Authors: Gorninski, Jane Proszek, Kazmierczak, Claudio de Souza
Format: Online
Language:por
Published: ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2008
Online Access:https://seer.ufrgs.br/ambienteconstruido/article/view/3802
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spelling ojs-article-38022008-05-06T17:58:44Z Evaluation of the chemical strength of polymeric concretes in aggressive environments Avaliação da resistência química de concretos poliméricos em ambientes agressivos Gorninski, Jane Proszek Kazmierczak, Claudio de Souza Resina poliéster; Concreto polímero; Resistência mecânica; Durabilidade The aim of this study was to evaluate the chemical strength of polymeric concretes. Four different concentrations of two unsaturated polyester resins (isophtalic and orthophtalic) , summing up eight chemical mortar compositions, were analyzed. Samples were submitted to alkaline and saline solutions, which are usually responsible for corrosive processes in industrial environments. Results showed that the studied mortar compositions did not suffer any physical changes on their surface nor significant mass loss. However, flexural strength decreased in samples submitted to aggressive environments. Despite this significant decrease in the flexural strength, the remaining values were much higher than those usually observed in concrete mixtures produced with Portland cement. Moreover, according to the statistical analysis, resin type and concentration, and type of solution significantly influenced the chemical strength of the studied polymeric concretes. Este trabalho apresenta uma avaliação da resistência química de concretos poliméricos. Para o presente estudo foram utilizados dois tipos de resinas poliéster insaturadas, uma isoftálica e outra ortoftálica. Os aglomerantes foram utilizados em quatro diferentes concentrações, totalizando oito composições químicas de concretos. As amostras foram submetidas a soluções alcalinas e salinas freqüentemente responsáveis por processos corrosivos em ambientes industriais. Todas as composições em estudo não sofreram alterações físicas em suas superfícies e nem mesmo perda de massa significativa. Constatou-se diminuição da resistência à tração na flexão das amostras submetidas aos meios agressores, entretanto, mesmo nas amostras cuja resistência sofreu maiores decréscimos, os valores remanescentes são muito maiores do que aqueles observados, usualmente, em concretos produzidas com cimento Portland. Por intermédio de análise estatística, constatou-se que o tipo de resina, o teor de resina e o tipo de solução exercem efeito significativo sobre a resistência química dos concretos poliméricos em estudo. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2008-04-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://seer.ufrgs.br/ambienteconstruido/article/view/3802 Ambiente Construído; v. 8, n. 1 (2008); 105-113 Ambiente Construído; v. 8, n. 1 (2008); 105-113 Ambiente Construído; v. 8, n. 1 (2008); 105-113 1678-8621 1415-8876 por https://seer.ufrgs.br/ambienteconstruido/article/view/3802/2182 Direitos autorais 2016 Ambiente Construído https://creativecommons.org/licenses/by/4.0
institution Universidade Federal do Rio Grande do Sul
collection OJS
language por
format Online
author Gorninski, Jane Proszek
Kazmierczak, Claudio de Souza
spellingShingle Gorninski, Jane Proszek
Kazmierczak, Claudio de Souza
Evaluation of the chemical strength of polymeric concretes in aggressive environments
author_facet Gorninski, Jane Proszek
Kazmierczak, Claudio de Souza
author_sort Gorninski, Jane Proszek
title Evaluation of the chemical strength of polymeric concretes in aggressive environments
title_short Evaluation of the chemical strength of polymeric concretes in aggressive environments
title_full Evaluation of the chemical strength of polymeric concretes in aggressive environments
title_fullStr Evaluation of the chemical strength of polymeric concretes in aggressive environments
title_full_unstemmed Evaluation of the chemical strength of polymeric concretes in aggressive environments
title_sort evaluation of the chemical strength of polymeric concretes in aggressive environments
description The aim of this study was to evaluate the chemical strength of polymeric concretes. Four different concentrations of two unsaturated polyester resins (isophtalic and orthophtalic) , summing up eight chemical mortar compositions, were analyzed. Samples were submitted to alkaline and saline solutions, which are usually responsible for corrosive processes in industrial environments. Results showed that the studied mortar compositions did not suffer any physical changes on their surface nor significant mass loss. However, flexural strength decreased in samples submitted to aggressive environments. Despite this significant decrease in the flexural strength, the remaining values were much higher than those usually observed in concrete mixtures produced with Portland cement. Moreover, according to the statistical analysis, resin type and concentration, and type of solution significantly influenced the chemical strength of the studied polymeric concretes.
publisher ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
publishDate 2008
url https://seer.ufrgs.br/ambienteconstruido/article/view/3802
work_keys_str_mv AT gorninskijaneproszek evaluationofthechemicalstrengthofpolymericconcretesinaggressiveenvironments
AT kazmierczakclaudiodesouza evaluationofthechemicalstrengthofpolymericconcretesinaggressiveenvironments
AT gorninskijaneproszek avaliacaodaresistenciaquimicadeconcretospolimericosemambientesagressivos
AT kazmierczakclaudiodesouza avaliacaodaresistenciaquimicadeconcretospolimericosemambientesagressivos
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