Optimization of self-healing additives dispersity in cement

Ismagilova, ER; Agzamov, FA; Abbas, AJ

Abstract

The article reflects results of the experimental studies on the modifying agent’s dispersion to
affect the nature of its distribution in the total volume of cement stone. An attempt was made to evaluate
the strength and filtration properties of the cement stone with respect to the heterogeneity of its structure.
The effect of a character of the modifying additive distribution on the permeability and strength of the
cement stone was investigated, as a result it was clarified that the zone of influence of the applied dynamic
load does not depend on the heterogeneity of the plugging material, and the values of deformation in the
cement stone depend on the dispersion, the nature of the distribution of the additive in the volume of the
cement stone, the period of the modifying agent activation.
The dynamic loads, which most strongly provoke the destruction of cement stone under the influence
of high stresses, are considered. Using the finite element method (FEM), the ANSYS application program
evaluated stresses in a cemented column, describes the process of deformation of cement stone, taking into
account the heterogeneity of its structure.
Based on the variability of the additive location, channel models for the most preferred localization of
the modifying additive have been determined as open through cracks.
The application of the mathematical model, which was elaborated, demonstrates a possibility of the
maximum reduction of the water conductivity if the optimal distribution of the modifying additive in the
matrix of the cement stone provided.

Citation

Ismagilova, E., Agzamov, F., & Abbas, A. (2017). Optimization of self-healing additives dispersity in cement. Georesursy Георесурсы (Print) (Print), 19(2), 129-134. https://doi.org/10.18599/grs.19.2.7

• Journal Article Type: Article
• Acceptance Date: May 15, 2017
• Publication Date: Jun 30, 2017
• Deposit Date: Jan 24, 2018
• Publicly Available Date: Jan 24, 2018
• Journal: Georesursy
• Print ISSN: 1608-5043
• Volume: 19
• Issue: 2
• Pages: 129-134
• DOI: https://doi.org/10.18599/grs.19.2.7
• Publisher URL: http://dx.doi.org/10.18599/grs.19.2.7
• Related Public URLs: https://geors.ru/About/