Title:
Evaluation and Minimization of Bruising (Microcracking) in Concrete Repair (364. 7T)
Author(s):
Sprinkel
Publication:
Web Session
Volume:
ws_S22_Sprinkel.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
3/28/2022
Abstract:
Bruising (microcracking) is commonly induced in a concrete substrate during the concrete removal or surface preparation process and is detrimental to the bond between the repair material and the substrate. One may ask: “what is bruising”, as this term is not commonly encountered in construction. Nevertheless, preventing or minimizing bruising and its effect on bond is an important requirement for a successful repair. This session explains what “bruising” is and focuses on concrete removal techniques and how they damage surfaces, adversely affecting the bond to repair materials, shortening the life of a repair. Procedures are presented to avoid and overcome bruising to a prepared surface.