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http://dx.doi.org/10.14190/JRCR.2022.10.4.514

An Experimental Study on Engineering Properties of Self-healing Mortar according to PCC(Powder Compacted Capsule) Size and Mixing Ratio  

Jae-In, Lee (Department of Architectural Engineering, Wonkwang University)
Chae-Young, Kim (Department of Architectural Engineering, Wonkwnag University)
Se-Jin, Choi (Department of Architectural Engineering, Wonkwnag University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.10, no.4, 2022 , pp. 514-522 More about this Journal
Abstract
In this study, as part of a study to improve the self-healing performance of concrete structures by applying self-healing capsules made of cementitious materials to cement composite materials, the engineering characteristics of mortars according to PCC(Powder Compacted Capsule) size and mixing ratio were compared and analyzed. For this, fluidity, compressive strength, reload test, carbonation, ultrasonic velocity, and water permeability characteristics were measured according to PCC size and mixing ratio of mortar. As a result of the measurement, the fluidity and compressive strength increased as the mixing ratio of PCC increased, and in the case of the load reload test, the healing ratio increased as the mixing ratio of PCC increased in the 03PC formulation. In the case of water permeability test, it was found that when PCC was used, the reduction ratio of water flow was up to 35 % higher than that of Plain, and when PCC with a size of 0.3 to 0.6 mm was mixed with 15 %, it was found to be effective in improving the crack healing ratio of the mortar.
Keywords
Self-healing; Self-healing capsule; Mortar; Flow; Compressive strength;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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