Abstract
The article demonstrates the performance of newly developed concrete maturity sensors on the construction site of residential complex “New Line” in Nur-Sultan. The sensors were mounted on the rebar of reinforced concrete structures to monitor the curing temperature of poured concrete grade M350 during 7 days. Additionally, the sensor device monitoring ambient temperature and relative humidity was set nearby. 14 cubic specimens were molded for compression test to determine the concrete strength. To get an idea on the degrees of influence of considered factors on concrete strength gain, the correlation analysis was conducted. As expected, the curing temperature showed a significant correlation with compressive strength, and its degree of influence amounted 58%. The ambient temperature with influence degree of 36% seemed to affect the concrete strength vividly. The relative humidity affected insignificantly with 6%. Based on conducted investigations the well-enough performance of maturity sensors is concluded. Moreover, there was set plans on the extension of their software solution with colored cross-correlation analysis technique.
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