Evaluation on In-Site Compressive Strength of High-Strength Concrete Mass Elements under Cold Weather

혹한기 고강도 콘크리트 매스부재의 현장 압축강도 평가

Mun, Jae-Sung;Yang, Keun-Hyeok;Kim, Do-Gyeu

  • Received : 2015.07.07
  • Accepted : 2015.08.28
  • Published : 2015.12.20


This study evaluated the in-site compressive strength development of high-strength concrete developed for the mass structures under cold weather condition. Two mock-up wall specimens with $2.0{\times}1.2{\times}1.0m$ in dimension were cured under an average temperature of $5^{\circ}C$. Core strengths measured at different locations of the mock-up walls were compared with the companion standard cylinder strengths. Test results revealed that the core strength of mock-up walls at an age of 3 days is higher by approximately 30% than the companion cylinder strength because of the high curing temperature effect generated from the heat of hydration of cementitious materials. Furthermore, comparisons with the prediction models based on maturity function confirmed that the effect of hydration heat on the curing temperature increase needs to be reflected to reasonably evaluate the on-site compressive strength development of concrete for mass elements.


mass structures;high strength;compressive strength;mock-up


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Supported by : Korea Institute of Energy Technology Evaluation and Planning (KETEP)