Thermal Integrity Profiling (TIP™) is an award-winning technology that utilizes heat generated by curing of concrete to assess the integrity and quality of drilled shafts, augured cast-in-place (ACIP) piles and other concrete foundations. The critical time for recording TIP™ data occurs during the hydration process until peak concrete temperature is reached. Temperatures should be recorded at a minimum time of half peak and again at peak. PDI’s TAG units can be used to collect TIP™ data from multiple TAP Edge (Thermal Acquisition Port) boxes attached to a foundation, sending the data via a cellular modem to the Cloud. The TAG allows engineers, designers and the contractor to see the data all at once, in real-time, from any location.

INNOVATIVE DATA COLLECTION:

TIP™ data is collected by the Thermal Wire® Cable system which includes cables fitted with digital thermal sensors spaced along the cable length and TAP Edges. The Thermal Wire cables are attached to the reinforcing cage prior to concreting. In general, one cable is installed per each 305 mm (one foot) of shaft diameter. A TAP Edge is connected to each Thermal Wire cable, and automatically samples data from that cable at user-selected time intervals, typically every 15 minutes. Temperatures obtained throughout the concrete curing process are saved in each TAP Edge, and may be viewed at any time, via the TAG data upload to the Cloud, once data collection begins. The expected temperature at any location is dependent on the shaft diameter, mix design, time of measurement, and distance to the center of the shaft.

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