2019 CSCE Annual Conference - Laval (Greater Montreal)

2019 CSCE Annual Conference - Laval (Greater Montreal) Conference


Title
REVIEW OF MECHANICAL PROPERTIES AND DURABILITY OF ALKALI ACTIVATED SYSTEMS

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Author(s)
Mr. Ahmed Abubakr (Presenter)
Dr. Ahmed Soliman, Concordia University
Abstract

Alkali activated systems are getting popular in construction sector. This increases the demand to understand its performance. An overview of the advances in alkali activated materials (AAMs) produced through activating aluminosilicate raw materials is presented along with a discussion for advantages and disadvantages of this technology. Reaction mechanisms for different aluminosilicate sources with activators were analyzed in order to achieve a good understanding for final products nature, and parameters affecting the process. This was supported with fresh and hardened properties and microstructure analysis. Overall performance including fire resistance, reinforcement bars bond and bond between aggregate and matrix were presented for better understanding of the performance. Moreover, durability performance of AAMs was also discussed in a comparison to cement-based materials.

Keywords: review, alkali activated materials, mechanical properties.