TITLE:
Usability of a Natural Tuff as Admixture in Clinker and Its Influence on the Physico-Chemical and Mechanical Properties of Mortar
AUTHORS:
Lamine Zerbo, Moustapha Sawadogo, Youssouf Sawadogo, Salfo Salogo, Moussa Ouedrago, Mohamed Seynou, Gisèle Lecomte-Nana, Philippe Blanchart
KEYWORDS:
Pozzolan, Tuff, Admixture, Cement, Mortar
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.9 No.5,
September
6,
2021
ABSTRACT: The
mechanical and physical properties of TUFF from Korsimoro (Burkina Faso) were
investigated for use as admixtures in clinker to make pozzolanic cement. Six
different cement mortar specimens were prepared by replacing clinker with TUFF
in ratios of 0%, 5%, 8%, 10%, 13% and 15% by mass. The flexural and compressive
strengths of the specimens were determined at the ages of 2, 7, 28 and 60 days.
The effects of the TUFF replacement ratio on workability, setting time and
volume expansion were also examined. Based on the results, it was concluded
that Korsimoro TUFF has pozzolanic activity and is suitable for use as an
alternative adherent material in the cement industry.