Home Trust Development Ltd.

2.2. Tests to be performed for Assessment and Vulnerability Study:

Non Destructive Tests:

The following NDT tests are required to be carried out on structural elements. However,
it is important that the testing scheme is prepared based on preliminary survey of the
Building or Structure:

Core tests to determine the estimated equivalent in situ compressive strength and to establish correlation between Rebound hammer test and in situ strength of concrete.
Rebound Hammer test to estimate the in situ compressive strength of cover concrete.
Carbonation test to assess the depth of carbonated concrete.
Cover test to assess the cover provided to RCC structural members.

2.2.3. Cover Meter test Procedure:
The instrument used is Rebar Locator, which is able to perform following functions:
To locate the bar accurately.
To assess the clear cover to the bar.
To calculate bar diameter of the selected bar.
The instrument works on magnetic principle & has limitations of spacing between bars to identify the bars individually.
The limitation of rebar locator instrument to identify bars, its diameter is that depth of rebar from concrete surface should be less than to 70 mm depth and spacing of bars should be more than 150 mm.