Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/327797
Type: Artigo
Title: Effect Of Wood Particle Treatment On The Properties Of Gypsum Plaster Pastes And Composites
Author: Shiroma
Leandro; Camarini
Gladis; Beraldo
Antonio Ludovico
Abstract: In this work the performance of gypsum plaster and wood particle in pastes and composites was investigated. Wood particles of fineness 0.42 mm and 1.20 mm were employed. Natural wood particles and the treated ones in cold or hot water (80 degrees C) were performed. The effects of the extractives solutions from the treatments applied to the wood particles on wood-gypsum compatibility were studied. For pastes and composites, waterto-gypsum ratio was 0.65. Wood particles-to-gypsum plaster ratios were 5%, 10% and 15%, in mass. Kinetics of temperature, mechanical performance and dynamic elasticity modulus by ultrasound measurements were applied to evaluate the gypsum plaster pastes and its composites behaviors. Results show that the extractive solutions changed the time of gypsum plaster hydration, being more sensitive to hot water treatment. The composites compressive strength increase with the wood particles pretreatment. The best result was to room temperature treatment. The same performance was found to the modulus of elasticity. Treatments have improved significantly the flexural strength. The best wood particle content was 10%. These results show the possibility of using this wood waste with an easy and simple treatment to make eco-efficient building materials.
Subject: Gypsum Plaster
Wood Particle
Composite
Ultrasound
Kinetics Of Temperature
Editor: Universidade Federal do Rio de Janeiro, Lab Hidrogenio
Rio de Janeiro
Citation: Materia-rio De Janeiro. Universidade Federal Do Rio De Janeiro, Lab Hidrogenio, v. 21, p. 1032 - 1044, 2016.
Rights: aberto
Identifier DOI: 10.1590/S1517-707620160004.0095
Address: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762016000401032&lng=en&tlng=en
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File SizeFormat 
000391719100019.pdf897.46 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.