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STUDY OF NA AND K ALKALI ACTIVATORS ON THE CHARACTERISTICS OF A LEBANESE METAKAOLIN-BASED GEOPOLYMER MORTAR


SABA M. 1*, GEORGES N. 1, MICHAUD P. 2, ABSI J. 2
1 University of Balamand, Koura, Civil Engineering Department, Lebanon.
2 Université de Limoges, IRCER, UMR CNRS 7315, 12 Rue Atlantis, 87068 Limoges, France.
*Corresponding author: marianne.saba@balamand.edu.lb

Issue:

PLUMEE, Number 1, Volume IX

Section:

Issue No.1 - Volume 9 (2019)

Abstract:

This work investigates the influence of various alkaline activators (Na and K) on

the properties of a Lebanese metakaolin-based geopolymer mortar. The first part of this

work consisted to find and treat a local Lebanese source of kaolin. The metakaolin was later

produced by the calcination of the local kaolin at a temperature reaching 700˚C. Once

prepared the silica, alumina and alkali activator (either Na or K based) were mixed together

in order to obtain the required mortars. Results indicated that the sodium based geopolymer

mortars exhibit a greater compressive mechanical strength than the potassium based

mortars.

Keywords:

Geopolymers mortar, alkali mortar, Mechanical characteristics.

Code [ID]:

PLUMEE201901V09S01A0032 [0005000]

Note:

Full paper:

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