Effect of Agents of Initiation of Carbonate Biomineralization on Cement Properties

Abstract:

The paper presents the results of the assessment of the effect of bacterial microorganism Sporosarcina pasteurii and CaCl₂ and CH₄N₂O precursors as agents initiating carbonate mineralization processes on the construction and technical properties of binders. In order to achieve this, a preliminary bacterial solution with precursors was prepared, which was introduced into the system instead of mixing water in the range of 0–10% with interval of 2%. The effect of the bacterial solution as a complex additive on the physical and mechanical properties of cement paste and stone is shown: normal density, setting time, water segragation, strength in compression and bending. The introduction of the solution provides a reduction in the setting time of cement without loss of strength both at the initial and at the final stages of hardening.

• Periodical: Materials Science Forum (Volume 1040)
• Pages: 159-164
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1040.159
• Online since: July 2021
• Authors: Valeria V. Strokova, Viktoriya V. Nelyubova*, Ulyana N. Duhanina, Dmitriy A. Balitsky, Oleg I. Drozdov
• Keywords: Biomineralization, Concrete, Concrete Mix, Flexural Strength, Sporosarcina Pasteurii

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