INCORPORATION OF MICROSILICA, METAKAOLIN AND WATERPROOFING ADDITIVE IN THE PRODUCTION OF PORTLAND CEMENT CONCRETE: INFLUENCE ON MECHANICAL PROPERTIES

Abstract

In reference to the continuous growth of the civil construction industry and the need for resistant, resistant and sustainable structures, this study investigates the influence of the mineral additions microsilica and metakaolin, and waterproofing additives on the mechanical properties of Portland cement concretes. The research evaluated the mechanical strength and tensile strength by diametric correction. The analysis compared two concretes: a conventional one, without additives or additions, and another containing waterproofing additive and partial replacements of the cement. In this replacement, 10% of the cement was replaced, 5% by microsilica and 5% by metakaolin. The incorporation of these materials aims to improve the strength and waterproofing of the concrete, while also seeking to reduce environmental impacts due to the reduction of carbon dioxide emissions, through the mention of cement replacement. In addition, the study aims to guide the production of concretes, which are in tune with the necessary structural performance and environmental preservation. Thus, this work contributes to the continuity of advances in the civil construction sector.