Performance evaluation of Aplite rock based geo-polymer binder

Author(s): Samindi Samarakoon, Samdar Kakay, Erland Soli Johnsen, Fredrik Meidell Knutsen,Jon Emil Tobias Knutsson
Paper category: Proceedings
Book title: Proceedings of the International RILEM Conference
Materials, Systems and Structures in Civil Engineering 2016
Segment on Concrete with Supplementary Cementitious Materials
Editor(s): Ole M. Jensen, Konstantin Kovler and Nele De Belie
ISBN:978-2-35158-178-0
e-ISBN: 978-2-35158-179-7
Publisher: RILEM Publications SARL
Publication year: 2016
Pages: 14-23
Total Pages: 10
Language : English

Abstract: Geo-polymer is considered as an alternative binder material to ordinary Portland cement (OPC) to enable greenhouse gas emissions to be minimized. Many researchers have evaluated the mechanical properties of fly ash based geo-polymer binders for structural engineering applications. This study focuses on the performance evaluation of aplite rock-based geo- polymer binders, which also consist of blast furnace slag and micro silica. It has identified the significant parameters that affect the performance of the aplite-based cement as Silicon dioxide SiO2): Aluminium oxide (Al2O3) ratio, Potassium silicate (k-silicate): Potassium hydroxide (KOH) ratio, KOH concentration and curing temperature. This manuscript illustrates the use of the Taguchi method for designing the optimal parameter combination that results in the optimal mixture of an aplite-based geo-polymer binder, which gives the highest compressive strength. The parameter design and the identification of the optimal mixture are performed via laboratory experiments and subsequent calculations.

Online publication : 2016
Publication type : full_text
Public price (Euros) : 0.00