Determination of Micromechanical Properties of Cementitious Materials with Self-Healing Agent

Abstract:

The paper deals with the determination of nano, microstructural, and micromechanical properties of cementitious materials surface with self-healing agent based on calcium carbonate precipitation (calcite). This was done by means of electron microscopy with elemental microanalysis and nanoindentation. These methods can define parameters of individual phases within cementitious materials, which are important for the development of micromechanical models. Bacillus pseudofirmus in combination with culture medium 235 was chosen as a self-healing agent. Our study provides information about micromechanical properties of crystals resulting from spontaneous crystallization from the culture medium and from crystallization caused by bacteria.

• Periodical: Key Engineering Materials (Volume 880)
• Pages: 149-154
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.880.149
• Online since: March 2021
• Authors: Zdeněk Prošek*, Pavla Ryparová, Aleš Jíra, Petr Bílý, Pavel Tesárek
• Keywords: Bacillus Pseudofirmus, Calcium Precipitation, Nanoindentation, Self-Healing Agent, SEM Analysis

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