Non-Destructive Testing in Concrete Maturity Modeling and Master Curve Development
نویسندگان
چکیده
Assessing concrete quality as construction goes on provides early warnings of potential flaws and leads to timely corrections in mix proportioning placement techniques. Compressive strength maturity modeling are among the most common parameters used by industry. Past studies indicated that non-destructive methods, NDTs, relate well predictions. In this study, hydration temperature–time history was explored defining “master curves” for first time. Well-accepted such ultrasonic pulse velocity resonant frequency, were effort. The study findings novel approach can be defined follow a generalized logarithmic form. best fit models relating NDT response product provided high coefficient determination (i.e., almost all cases above 0.9 p < 0.05), thus resulting very good fit. shift factors each mixture’s function relation master curve related properties. shifted functions from mixtures included had perfect transition data overlap trend line with an R2 = 1). NDTs’ ability capture temperature-time assessed impeded sensors into mixtures. This has prediction accuracy agreement between observed predicted values 0.93). proposed NDT-based through curve” development significant benefits traditional since it offers opportunity to: (i) predict without having repeat testing time producer adjusts mixture fine tune design; (ii) save cost due reduced evaluation use curves; (iii) able quickly further what gain will variations proportioning. monitor maturity, strength, NDTs reinforced is particular interest using cores problematic presence reinforcement.
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ژورنال
عنوان ژورنال: Applied sciences
سال: 2023
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app13137770