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Articles by Hyeonggil Choi
Strength Prediction of Non-Sintered Hwangto-Substituted Concrete Using the Ultrasonic Velocity Method
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Evaluation on Early Strength Development of Concrete Mixed with Non-Sintered Hwangto Using Ultrasonic Pulse Velocity
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Effects of Nitrite/Nitrate-Based Accelerators on Strength and Deformation of Cementitious Repair Materials under Low-Temperature Conditions
2.2. Experimental Conditions and Methods Material management, kneading, placing, and curing were performed in a 5 °C environment according to the “Building Work Standard Specifications/Explanation (JASS 5)” of the Architectural Institute of Japan, which states the condition that “the lower limit of the temperature at the time of unloading can be set to 5 °C” [25,26].
Materials | Free Full-Text | Investigating Ultrasonic Pulse Velocity Method for Evaluating High-Temperature Properties of Non-Sintered Hwangto-Mixed Concrete as a Cement Replacement Material
Open AccessArticle by Wonchang Kim 1, Hyeonggil Choi 2,* and Taegyu Lee 1,* 1 Department of Fire and Disaster Prevention, Semyung University, Choongbuk 27136, Republic of Korea 2 School of Architecture and Civil Engineering, Kyungpook National University, Daegu 41566, Republic of Korea * Authors to whom correspondence should be addressed.
Residual Compressive Strength Prediction Model for Concrete Subject to High Temperatures Using Ultrasonic Pulse Velocity
This is an early access version, the complete PDF, HTML, and XML versions will be available soon. Open AccessArticle by Wonchang Kim 1, Hyeonggil Choi 2,* and Taegyu Lee 1,* 1 Department of Fire and Disaster Prevention, Semyung University, Jecheon-si 27136, Republic of Korea 2 School of Architecture and Civil Engineering, Kyungpook National University, Daegu 41566, Republic of Korea * Authors to whom correspondence should be addressed.
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