CHUM Máy siêu âm cọc khoan nhồi

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Cross Hole Ultrasonic Monitor
With tomography support


The CHUM (Cross Hole Ultrasonic Monitor) uses the Cross-hole Sonic Logging (CSL) method to perform high-resolution quality control of deep foundations.

The system uses an ultrasonic wave sent from a transmitter to a receiver pulled through water filled access tubes embedded in the concrete. The measured arrival time and energy are strongly dependent on the concrete quality. [overview of this test method ]

Additional methods supported by the CHUM are Single Hole Ultrasonic Testing and Tomography (two- and three-dimensional).

The CHUM is fully compliant to ASTM D6760 - 14, AFNOR NF P 94-160-1 and additional standards.