Advertisement
Published in:
2021 | OriginalPaper | Chapter
Crack Closure in a Cement Matrix Using Bacterial Precipitation of Calcium Carbonate
Authors : V. V. Strokova, U. N. Dukhanina, D. A. Balitsky
Published in: Innovations and Technologies in Construction
Publisher: Springer International Publishing
Activate our intelligent search to find suitable subject content or patents.
Select sections of text to find matching patents with Artificial Intelligence. powered by
Select sections of text to find additional relevant content using AI-assisted search. powered by
Abstract
The article presents the analysis the degree of clogging of mechanically formed cracks by new growths induced as a result of the urease activity of bacteria in model solutions. Intensification of the induction of new formations depending on the type of bacterial culture is characterized by the formation of positive reliefs on the surface of the cement stone. The continuous fouling of the inner surface of the formed fault by crystals of various morphologies formed as a result of the enzyme activity of bacterial strains is visualized. The authors propose the method for calculating the area of an asymmetric fracture with different widths of the convergence of parts. The results of the intensification of precipitation of crystals are determined by the coefficient of crack closure. On the basis of comparative analysis of bacterial cultures by the intensity of continuity reattachment in the fracture zone, they were ranked according to the increase of efficiency of the following sequence: S. pasteurii → B. pumilus → B. megaterium → L. sphaericus.