Effect of green activators on the properties of alkali activated materials: a review

Author(s): Adeyemi Adesina
Paper category: Proceedings
Book title: SynerCrete’18: Interdisciplinary Approaches for Cement-based Materials and Structural Concrete: Synergizing Expertise and Bridging Scales of Space and Time Vol. 1 & 2
Editor(s): Miguel Azenha, Dirk Schlicke, Farid Benboudjema, Agnieszka Jędrzejewska
ISBN: 978-2-35158-202-2
e-ISBN: 978-2-35158-203-9
Publisher: RILEM Publications SARL
Publication year: 2018
Pages: 431-436
Total Pages: 6
Language : English

Abstract: The most common types of activators used for alkali activated materials (AAMs) are sodium hydroxide and sodium silicate. These activators have been found to be corrosive, viscous, expensive, and with high embodied energy and carbon. In addition, the properties of these activators have made the large-scale applications of AAMs possible as a result of the special handling and side effects it has on the properties of the resulting AAM.
Therefore, this review explored the use of alternative green activator used for AAMs, and the effects it has on its properties. A green activator herein is classified as an activator that has a less embodied energy and carbon compared to sodium silicate and sodium hydroxide. This study shows the possibility of producing a greener AAM with enhanced strength and durability properties. In addition, it was observed that there's a considerable cost reduction with the use of the green activators compared to the convectional ones.

Online publication : 2018
Publication type : full_text
Public price (Euros) : 0.00