• Title/Summary/Keyword: Guaranteed minimum compressive concrete strength

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Predicting the Compressive Strength of Concrete Using a Maturity Concept (적산온도개념을 이용한 콘크리트 압축강도 예측)

  • Ko, Hune-Bum
    • Journal of the Korea Convergence Society
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    • v.13 no.1
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    • pp.229-234
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    • 2022
  • The non-destructive method of easily evaluating concrete strength through the concept of maturity has been verified by many researchers. The current work introduced such a concept in concrete strength assessment that involved 843 variables and specific values that 11 papers used in experiments, including constant temperatures (5, 10, 20, 30, 40, 50℃) with a W/B range of 18 to 70% and different curing ages (0.5 to 182 days). The classification of concrete as being of normal-strength concrete (40MPa or less), high-strength concrete (40~70MPa), and Super high-strength concrete (70MPa or more) enabled this study to identify the relationship between maturity and concrete strength using the most convenient and easily applicable maturity model in the construction field. A regression formula of lowest guaranteed concrete strength on the basis of maturity was presented.