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
Jezik:	por
Izdano:	ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2008
Online dostop:	https://seer.ufrgs.br/ambienteconstruido/article/view/3802
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id	ojs-article-3802
record_format	ojs
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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Evaluation of the chemical strength of polymeric concretes in aggressive environments

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