The self-healing ability of dense concretes was investigated by adding coarse cement particles to the mixtures as a self-healing agent. Longitudinal cracks were created in cylindrical samples after 28 d of curing using the split test method. The cylindrical specimens were then fastened using metal rings in such a manner that the crack width was set to 200 μm and the specimens were cured in water for the second stage. The secondary tensile strength and water passing through the cracked specimens were then investigated. In addition, the hydration degree was measured as an explanation of self-healing rates. The results show that the use of coarse cement particles recovers tensile strength by up to 38% and also decreases the water passing rate by up to 100%.
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May 2015
Research Article|
May 01 2015
Effect of coarse cement particles on the self-healing of dense concretes
Hamid Rahmani;
Hamid Rahmani
Assistant Professor, Department of Civil Engineering, College of Engineering, Yasouj University, Yasouj, Iran
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Hamed Bazrgar
Hamed Bazrgar
MSc Student, Department of Civil Engineering, College of Engineering, Yasouj University, Yasouj, Iran
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Publisher: Emerald Publishing
Revision Received:
May 29 2014
Revision Requested:
October 08 2014
Accepted:
October 29 2014
Online ISSN: 1751-763X
Print ISSN: 0024-9831
ICE Publishing: All rights reserved
2015
Magazine of Concrete Research (2015) 67 (9): 476–486.
Article history
Revision Received:
May 29 2014
Revision Requested:
October 08 2014
Accepted:
October 29 2014
Citation
Rahmani H, Bazrgar H (2015), "Effect of coarse cement particles on the self-healing of dense concretes". Magazine of Concrete Research, Vol. 67 No. 9 pp. 476–486, doi: https://doi.org/10.1680/macr.14.00158
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