Next Article in Journal
Failure Mechanisms of the Coating/Metal Interface in Waterborne Coatings: The Effect of Bonding
Previous Article in Journal
Creep Behavior of Poly(lactic acid) Based Biocomposites
Previous Article in Special Issue
Preparation and Properties of Alkali Activated Metakaolin-Based Geopolymer
Article Menu
Issue 4 (April) cover image

Export Article

Open AccessArticle
Materials 2017, 10(4), 396; doi:10.3390/ma10040396

The Brittleness and Chemical Stability of Optimized Geopolymer Composites

1
Institute of Rock Structure and Mechanics, Academy of Sciences Czech Republic, v.v.i., Prague 18209, Czech Republic
2
Department of Glass and Ceramics, Institute of Chemical Technology (ICT) in Prague, Prague 16628, Czech Republic
3
Faculty of Civil Engineering, Czech Technical University in Prague (CTU), Prague 16636, Czech Republic
4
Department of Water Technology and Environmental Engineering, Institute of Chemical Technology (ICT) in Prague, Prague 16628, Czech Republic
*
Author to whom correspondence should be addressed.
Academic Editors: Arie van Riessen and Claudio Ferone
Received: 25 October 2016 / Revised: 29 March 2017 / Accepted: 4 April 2017 / Published: 9 April 2017
(This article belongs to the Special Issue Advances in Geopolymers and Alkali-Activated Materials)

Abstract

Geopolymers are known as high strength and durable construction materials but have a brittle fracture. In practice, this results in a sudden collapse at ultimate load, without any chance of preventing the breakdown of parts or of withstanding the stress for some time. Glass fiber usage as a total anisotropic shape acting as a compact structure component should hinder the fracture mechanism. The optimized compositions in this study led to a significant reinforcement, especially in the case of flexural strength, but also in terms of the compressive strength and notch toughness. The positive and negative influence of the fibers on the complex composite properties provided chemical stability. View Full-Text
Keywords: metakaolin; interfacial transition zone; compressive; flexural strength; elastic modulus; impact strength; acid leaching; porosity metakaolin; interfacial transition zone; compressive; flexural strength; elastic modulus; impact strength; acid leaching; porosity
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Supplementary material

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Steinerova, M.; Matulova, L.; Vermach, P.; Kotas, J. The Brittleness and Chemical Stability of Optimized Geopolymer Composites. Materials 2017, 10, 396.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top