Material characteristics of geopolymers based on an industrial waste product

conference paper

English

Generation of industrial waste and byproducts represents a substantial challenge for the waste disposal management. Usage of such materials in building industry for development of new materials can be considered as a promising way in this field. During the last decades, an increased attention is paid to the application of waste materials for geopolymer synthesis. Moreover, the efforts aimed at alkali-activated aluminosilicates point to an overall positive environmental impact of such materials due to their lower embodied energy, as compared to the traditional binders as cement or lime. In this paper, material characteristics of geopolymers synthesized using waste brick dust as precursor and water glass-sodium hydroxide mixture as activator are studied, taking into account the influence of curing temperature and duration. The materials are cured at 21, 40, 60 and 80 °C for 6, 24, 72, and 168 hours in order to find a correlation between curing conditions and compressive and bending strength. The obtained results provide an important information for further understanding of the process of geopolymer synthesis.

geopolymers, curing temperature, mechanical properties, waste brick dust

FOŘT, J.; VEJMELKOVÁ, E.; SOUKUP, Z.; ROVNANÍKOVÁ, P.; ČERNÝ, R.

20. 7. 2018

INEGI/FEUP

Lisabon, Portugalsko

978-989-20-8313-1

6th International Conference Integrity-Reliability-Failure

85

92

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