TEMP (Thermal Evaluation of Mass Pours)
is a system that measures temperatures in various points of a mass concrete
pour, as the curing cement generates heat.
The TEMP system includes a main unit,
Thermal Wire® cables, TEMP data loggers and the TEMP-S
analysis software.
Thermal Wire cables are fitted with
custom-spaced temperature sensors. The copper cable is cast into the
concrete, often tied to the reinforcement.
Each Thermal Wire cable may include any
number of sensors, and is connected to a single external TEMP data logger.
TEMP data loggers read and store up to 28 days of temperature measurements
and are powered by a replaceable battery. There are no batteries on the
sensors themselves. Replacing the TEMP data logger battery makes it
possible to monitor and store data indefinitely.
Data is transferred from the TEMP data
loggers to the TEMP main unit for observation, and then analyzed by the
TEMP-S software.
TEMP-S provides the user with graphs
versus time of measured maximum temperatures and maximum differences in
temperature (Delta). These are presented along with allowable limits.
TEMP-S also calculates concrete maturity based on measured temperatures,
and helps the user estimate concrete strength based on a user-determined
strength-maturity relationship.
TEMP measurements comply with ASTM C1074 - 11 Standard Practice for Estimating
Concrete Strength by the Maturity Method.
Thermal Wire cables: US Patent 8,382,369.
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