ULTRASONIC TESTCRETE

ASTM D6760-02
             
 
ASTM compliance D6760-02 - Standard Test Method for Integrity Testing of Concrete deep Foundations by Ultrasonic Crosshole Testing
 
             
 

Item

Description

Requirements

Compliance
 
 
4.2
Output signal storage
Saved or at least modulated
Meets : modulated
 
 
6.3.1
Probes margins from bottom
<100mm
Meets : <50mm
 
 
6.3.1
Probe waterproofing
150% maximum depth
Meets
 
 
6.3.2
Transmitter frequency
>30kHz
Meets: ~50kHz
 
 
6.3.5
Depth measurements slippage
None
Meets
 
 
6.3.5
Depth measurements accuracy
Max(1%,250mm)
Meets
 
 
6.4.1
Sampling vertical interval
Adjustable
Meets 1cm to 5cm
 
 
6.4.1
Gain control
Adjustable
Exceeds: Automatic
 
 
6.4.2
Recording
>250kHz
Meets : 400kHz
 
 
6.4.2
Recording
12Bit
Meets: 12Bit
 
 
6.4.4
Display of measured data
Raw data
Meets
 
 
7.8.1
Analysis
Energy + waterfall
Meets
 
             

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