The effect of organic and inorganic fibres on the mechanical and thermal properties of aluminate activated geopolymers

By G. Masi, William D. A. Rickard, M. Bignozzi, A. Riessen. 2015

182 citations recorded by the source corpus.

Abstract The addition of fibres to a brittle matrix is a well-known method to improve the flexural strength. However, the success of the reinforcements is dependent on the interaction between the fibre and the matrix. This paper presents the mechanical and microstructural properties of PVA and basalt fibre reinforced geopolymers. Moreover low density and thermal resistant materials used as insulating panels are known be susceptible to damage due to their poor flexural strength. As such the thermal and fire resistance properties of foamed geopolymers containing fibre reinforcement were also investigated. The results highlight that the presence of PVA fibres greatly increased the flexural strength and the toughness of the geopolymer composite, while the presence of basalt fibres improved the flexural behaviour of the composite after high temperature exposure.

Subfields: Ceramics and Composites, Civil and Structural Engineering

View Paper: https://www.semanticscholar.org/paper/fd5df14d8c20e505f49ed7f4bfbf74c95bd97687

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Ceramics and Composites

1. E. Yang
2. J. Qiu
3. J. Sanjayan
4. B. Nematollahi
5. Mingzhong Zhang
6. Navid Ranjbar
7. Faiz Shaikh

In Civil and Structural Engineering

1. B. Nematollahi
2. Faiz Shaikh
3. J. Qiu
4. J. Sanjayan
5. E. Yang
6. Mingzhong Zhang
7. Navid Ranjbar
8. Victor C. Li

Citations in the corpus

• High ductile behavior of a polyethylene fiber-reinforced one-part geopolymer composite: A micromechanics-based investigation (2017, result): “geopolymer composites [7-10], these studies are yet far limited as compared to conventional”
• Matrix design of strain hardening fiber reinforced engineered geopolymer composite (2016, background): “Properties of fly ash-based geopolymer composites reinforced with different types of fibers such as cotton fibers [45], glass fibers [46], carbon fibers [47], steel fibers [48] and basalt fibers [49] have also been reported in limited studies.”
• Fiber-reinforced geopolymer composites: A review (2020, background): “Similarly, the presence of hydroxyl groups in PVA results in a strong hydrogen intermolecular bond, and thus exhibits a high bond strength in cementitious binders [86, 124, 184].”