| Title |
Mechanics and Durability Characteristics of Cement Mortar Using Cementitious Materials-based Capsule and Amorphous Metallic Fibers |
| Authors |
이재인(Lee, Jae-In) ; 최세진(Choi, Se-Jin) |
| DOI |
https://doi.org/10.5659/JAIK.2023.39.5.207 |
| Keywords |
Amorphous Metallic Fiber; Self-healing Capsule; Mortar; flow; Compressive strength; Chloride ion penetration resistance |
| Abstract |
This study aims to improve the self-healing performance of concrete structures by using self-healing capsules composed of amorphous metal
fibers and cement-based materials together to mitigate the quality degradation problem of concrete caused by capsules. The amorphous metal
fiber reinforcement according to the PCC mixing ratio and the engineering characteristics of mortar were compared and analyzed. To this
end, the mortar's fluidity, compressive strength, tensile strength, carbonation, ultrasonic velocity, and chloride ion permeation resistance
according to the PCC mixing ratio were measured. As a result of the measurement, the fluidity decreased as the mixing ratio of PCC
increased, and the compressive strength showed a tendency to decrease as the mixing ratio of PCC increased regardless of the mixing ratio
of amorphous metal fibers. In the case of tensile strength, the mixture using amorphous metal fiber and PCC showed a maximum increase of
46.9% compared to the plain mixture. In the case of the carbonation depth, the lowest carbonation depth was shown in the AF-PCC15
mixture mixed with PCC 15% and amorphous metal fibers. |