Mechanical behavior of strain-hardening geopolymer composites reinforced with natural and PVA fibers

被引：20
|
作者：
Constancio Trindade, Ana Carolina [1 ]
Ribeiro Borges, Paulo Henrique [2 ]
Silva, Flavio de Andrade [1 ]
机构：
[1] Pontificia Univ Catolica Rio de Janeiro PUC Rio, Dept Civil & Environm Engn, Cardeal Leme Bldg,Room 301-10, BR-22451900 Gavea, RJ, Brazil
[2] Ctr Fed Educ Tecnol Minas Gerais CEFET MG, Dept Civil Engn, Amazonas Ave 7675, BR-30510000 Belo Horizonte, MG, Brazil
来源：
MATERIALS TODAY-PROCEEDINGS | 2019年 / 8卷
关键词：
geopolymers; natural fibers; pva; weibull statistics; TENSILE BEHAVIOR; PERFORMANCE; SISAL; SLAG; JUTE; BOND;
D O I：
10.1016/j.matpr.2019.02.017
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Geopolymers have been increasingly used in civil construction. They are obtained through the mixture of an aluminosilicate with an alkali medium, and its properties may vary according to processing conditions. They demonstrate a brittle behavior, and several types of fibers can be used as reinforcement in distinct forms. This study presents an experimental evaluation of GP-composites reinforced with natural and synthetic fibers, using a mixture based on metakaolin and sodium. Compression, tensile (analyzed by Weibull statistics) and pull-out tests were performed. The microstructure was investigated through scanning electron microscopy (SEM). All composites exhibited a strain-hardening behavior with multiple cracking formation. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码：753 / 759
页数：7
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