Gypsum plaster

Gypsum plaster

This article is concerned with the use of gypsum plaster as wall and concrete structure lining. It discusses state-of-art research in this theme, analysing both previous studies and experimental results carried out by the authors. The gypsum used in this study was manufactured according to Brazilian...

Volledige beschrijving

Bewaard in:
Bibliografische gegevens
Hoofdauteurs: John, Vanderley Moacyr, Antunes, Rubiane Paz do Nascimento
Formaat: Online
Taal:por
Gepubliceerd in: ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2008
Online toegang:https://seer.ufrgs.br/ambienteconstruido/article/view/3409
Tags: Voeg label toe
Geen labels, Wees de eerste die dit record labelt!
id ojs-article-3409
record_format ojs
spelling ojs-article-34092008-05-09T18:17:22Z Gypsum plaster Argamassas de gesso John, Vanderley Moacyr Antunes, Rubiane Paz do Nascimento Gesso; Argamassa; Revestimento de argamassa; Revestimento de parede; Revestimento de estrutura de concreto This article is concerned with the use of gypsum plaster as wall and concrete structure lining. It discusses state-of-art research in this theme, analysing both previous studies and experimental results carried out by the authors. The gypsum used in this study was manufactured according to Brazilian standard specifications on the physical properties of gypsum powder and paste. Regarding the chemical composition, only the SO3 (53.7%) level was below the NBR 13207 specifications (> 55.0%). The fine sand used had the following characteristics: maximum characteristic dimension of 2.4 mm, unitary mass of 1.64 Kg/dm3, specific mass of 2.65Kg/dm3. The experiments followed a 23 factorial design, with two repetitions, considering as factors the water/plaster ratio and the gypsum/aggregate ratio, both in mass. The following parameters were measured for each mixture: texture measured by modified Vicat apparatus, and time to the beginning of the setting, both according to ASTM C 472 (ASTM, 1993). The aggregate level influenced texture, the beginning of the setting, and adherence resistance. The results showed that gypsum plaster is feasible in terms of adherence resistance. O presente artigo trata sobre o emprego de argamassas de gesso como revestimentos de alvenarias e estruturas de concreto. Neste sentido, pretende discutir o estado-da-arte da pesquisa nesta área, analisando tanto resultados originais quanto os apresentados através dos experimentos realizados. O gesso utilizado neste trabalho atende às especificações das normas brasileiras quanto às propriedades físicas do pó e da pasta. No tocante à composição química, apenas o teor de SO3 (53,7%) se apresentou um pouco abaixo do especificado pela NBR 13207 (> 55,0%). Foi utilizada nos ensaios uma areia fina com as seguintes características: dimensão máxima característica de 2,4mm, massa unitária de 1,64Kg/dm3, massa específica de 2,65Kg/dm3. Foi realizado um experimento fatorial 23, com duas repetições, considerando os fatores relação água/gesso e proporção gesso: agregado, sempre em massa. Para todas as misturas foram medidas as variáveis: consistência, pelo aparelho de Vicat modificado, e tempo de início pega, ambos conforme a ASTM C 472 (ASTM, 1993). Verificou-se a influência de teor de agregado na consistência, no início de pega e na resistência de aderência. Através dos resultados considerou-se que as argamassas de gesso são viáveis do ponto de vista da resistência de aderência. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2008-04-14 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://seer.ufrgs.br/ambienteconstruido/article/view/3409 Ambiente Construído; v. 2, n. 1 (2002); 29-37 Ambiente Construído; v. 2, n. 1 (2002); 29-37 Ambiente Construído; v. 2, n. 1 (2002); 29-37 1678-8621 1415-8876 por https://seer.ufrgs.br/ambienteconstruido/article/view/3409/1823 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 John, Vanderley Moacyr
Antunes, Rubiane Paz do Nascimento
spellingShingle John, Vanderley Moacyr
Antunes, Rubiane Paz do Nascimento
Gypsum plaster
author_facet John, Vanderley Moacyr
Antunes, Rubiane Paz do Nascimento
author_sort John, Vanderley Moacyr
title Gypsum plaster
title_short Gypsum plaster
title_full Gypsum plaster
title_fullStr Gypsum plaster
title_full_unstemmed Gypsum plaster
title_sort gypsum plaster
description This article is concerned with the use of gypsum plaster as wall and concrete structure lining. It discusses state-of-art research in this theme, analysing both previous studies and experimental results carried out by the authors. The gypsum used in this study was manufactured according to Brazilian standard specifications on the physical properties of gypsum powder and paste. Regarding the chemical composition, only the SO3 (53.7%) level was below the NBR 13207 specifications (> 55.0%). The fine sand used had the following characteristics: maximum characteristic dimension of 2.4 mm, unitary mass of 1.64 Kg/dm3, specific mass of 2.65Kg/dm3. The experiments followed a 23 factorial design, with two repetitions, considering as factors the water/plaster ratio and the gypsum/aggregate ratio, both in mass. The following parameters were measured for each mixture: texture measured by modified Vicat apparatus, and time to the beginning of the setting, both according to ASTM C 472 (ASTM, 1993). The aggregate level influenced texture, the beginning of the setting, and adherence resistance. The results showed that gypsum plaster is feasible in terms of adherence resistance.
publisher ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
publishDate 2008
url https://seer.ufrgs.br/ambienteconstruido/article/view/3409
work_keys_str_mv AT johnvanderleymoacyr gypsumplaster
AT antunesrubianepazdonascimento gypsumplaster
AT johnvanderleymoacyr argamassasdegesso
AT antunesrubianepazdonascimento argamassasdegesso
_version_ 1709370563306192896

Gelijkaardige items