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http://dx.doi.org/10.15683/kosdi.2020.09.30.472

Field Application of High Strength Concrete by Cement Types Using Maturity  

Kim, Dong Baek (Construction Engineering Research Institute/ Department of Civil ＆)
Publication Information
Journal of the Society of Disaster Information / v.16, no.3, 2020 , pp. 472-478 More about this Journal
Abstract
Purpose: The purpose of the study is to help economic and safe construction by accurately predicting the initial strength of high-strength concrete (70MPa) for each type of cement, securing reliability of concrete quality, and drawing accurately the timing of form deformed, tensioning time of PS concrete, and openning of traffic after road repair with maturity. Method: Calculate the maturity by measuring the hydration heat with cement type for each age, and measure the strength of concrete with age to predict the strength corresponding to the any maturity. Result: In estimating the time required for traffic opening in road repair, ASTM C1074 was theoretically estimated at 16.4 hours for high-strength concrete, but in this study, maturity was calculated at 307, 14.4 hours for OPC and maturity at 2700, 34 hours for LHPC and maturity 200, 8 hours for ESPC. Conclusion: The timing of form deformed of structures using high-strength concrete and the opening of traffic of road repair may be much faster than in the case of concrete using OPC below the design basis strength 40MPa applied by ACI Committee 347.
Keywords
Initial Strength; Maturity; High-strength Concrete; Hydration Heat; Opening of Traffic;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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