Effect of Metashaleas SCM on Mechanical and Thermal Properties in Concrete Production

Abstract:

This article is focused on SCM questions. Studied material - metashale belongs among artificial pozzolana with natural origin. Shale is clay mineral and by its burning at 700°C similar material as metakaolin arises. Metashale is used as cement replacement up to 60% in concrete production. By means of measurement of basic physical properties, mechanical strength and thermal characteristic the effect of metashale is determined. Concrete containing 20% of metashale shows improvement of studied properties except of thermal conductivity. The 40% of the SCM leads to concrete production with same properties as the reference concrete. And when 60% of the burnt clay is utilized, final values of studied properties shows little deteriorations. However all studied materials shows appropriate properties to be applicable in civil engineering branch as load-bearing concrete.

• Periodical: Applied Mechanics and Materials (Volume 763)
• Pages: 41-46
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.763.41
• Online since: May 2015
• Authors: Dana Koňáková*, Eva Vejmelková
• Keywords: Basic Physical Properties, Burnt Shale, Compressive Strength, Concrete, Thermal Conductivity

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