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http://dx.doi.org/10.14190/JRCR.2020.8.1.81

Evaluation of Self-Healing Performance Using Hydration Model of Portland Cement and Clinker  

Choi, Sang-Hyeon (Department of Civil.Environment Engineering, University of Ulsan)
Park, Byoung-Sun (Korea Conformity Laboratories)
Cha, Soo-Won (Department of Civil.Environment Engineering, University of Ulsan)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.8, no.1, 2020 , pp. 81-87 More about this Journal
Abstract
Crack control is essential to increase the durability of concrete significantly. Healing of crack can be controlled by rehydration of unreacted clinkers at the crack surface. In this paper, by comparing the results of isothermal calorimetry test and regression analysis, the Parrot & Killoh's cement hydration model was verified and clink er hydration model was proposed. The composition and quantification of hydration products were simulated by combining kinematic hydration model and thermodynamic model. Hydration simulation was conducted using the verified and proposed hydration model, and the simulation was performed by the substitution rate of clink er. The type and quantity of the final hydration product and healing product were predicted and, in addition, the optimal cementitious material of self-healing concrete was selected using the proposed hydration model.
Keywords
Hydration model; Thermodynamic model; Clinker; Self-healing concrete;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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