The Concrete Maturity Logger is a self-contained, microprocessor-based data-logger that can be embedded directly into a concrete structure. The logger measures, processes, and stores maturity and temperature data within the concrete itself. It is extremely rugged and operates continuously with no permanently-affixed external devices. The logger processes temperature data in real-time to calculate and store concrete maturity data (i.e., concrete strength). It stores the maximum and minimum temperatures and time at which they occur.
Typically, the maturity logger is used when real-time strength measurements are needed. It uses a precision thermistor to provide highly accurate temperature measurements. The precision thermistor eliminates any need for temperature calibration.
Each logger has a unique serial number.
- Processes temperature data in real-time to calculate and store maturity data
- Use when real-time strength measurements are needed
Specification
Data Logged |
Temperature and Maturity |
Logging Interval |
30 minutes
|
Logging Time |
28 Days |
Temperature Accuracy |
+/- 1oC |
Maturity Integration Period |
1 minute |
Maturity Techniques Available |
ASTM C 1074 Nurse-Saul Method ASTM C 1074 Arrhenius Method Patent Pending Arrhenius+ Method |
Additional Data Stored |
Time and value of minimum/maximum temperature and maturity Up to 8 Notes and 6 Events Job Site Name, Logger, Location Notes |
Logger Dimensions |
38mm x 28mm diameter 1-1/2 in. x 1-1/8 in diameter |
Standard cable length |
1.2 metres, 4 ft. (custom lengths offered) |
Wire |
18 gauge |
Operating Temperature |
-18oC to 85oC (0oF to 185oF) Tested (but not guaranteed) to 100oC |
Logging Battery Life |
6 months |
Battery Shelf Life |
5 years |