Title:
Testing Self-Sealing Properties of Concrete
Author(s):
Rishi Gupta, Alireza Biparva, and Pejman Azarsa
Publication:
Concrete International
Volume:
41
Issue:
1
Appears on pages(s):
31-34
Keywords:
water, flow, test, specimens
DOI:
Date:
1/1/2019
Abstract:
Cracks in concrete can be mitigated by autogenous healing. Major mechanisms for self-healing of concrete include calcium carbonate formation, continued hydration, sedimentation of particles, swelling of the cement matrix, and admixture effects. In this article, authors describe a test method for examining a degree of sealing of cracks and its application for performance evaluation of a crack-sealing chemical admixture. The test method characterizes the self-sealing performance of concrete by directly measuring flow rates through cracks.