Non Destructive Testing (NDT)

Rebar Scan

When accurate as-built drawings are not available, a cover meter can be used to determine the effective cover thickness of the reinforcement. If the remaining service life is a concern for the owner, the cover thickness can be used as a key input in mathematical models used for service life prediction.

Schmidt Hammer Test

Rebound Hammer can be used to evaluate the quality of concrete near the surface. While test results do not directly correlate to strength of concrete, a site-specific calibration on concrete cores can be used to predict the concrete strength on-site. Rebound hammer is easy and fast to perform in the field. Test results can be used for comparative assessment of concrete quality at different locations.

Core Test

This test method provides standardized procedures for obtaining and testing specimens to determine the compressive, splitting, tensile, and flexural strength of in-place concrete. Generally, test specimens are obtained when doubt exists about the in-place concrete quality due either to low strength test results during construction or signs of distress in the structure. Another use of this method is to provide strength information of older structures.

Low Strain Pile Integrity Test

Using the latest portable system we are able to conduct advanced interpretation of data measuring pile length, pile head stiffness, and pile shaft mobility.

The specially developed equipment is lightweight, portable, and produces rapid results. Analysis can be carried out instantly on-site, to confirm the length of the foundation and depth of any existing defects.

The system features a powerful software analysis program to enable a more detailed analysis of changes in the pile section and the influence of soil.

Concrete Integrity Test

Ultrasonic  Pulse Velocity Test is a method for nondestructive evaluation of concrete and masonry. It is based on the use of impact-generated compression waves that travel through the structure and are reflected by internal flaws and external surfaces. It can be used to determine the location and extent of flaws such as cracks, de-laminations, voids, honeycombing and de-bonding in plain, reinforced and post-tensioned concrete structures. Voids in the subgrade directly beneath slabs and pavements are easily detected through Impact Echo testing

Depth of Carbonation Test

Concrete Carbonation is tested with the straight forward use of chemical indicator; the most commonly used indicator is a solution of Phenolphthalein in alcohol or water. Phenolphthalein solution applied to strongly alkaline concrete will turn pink.

This can be carried out by taking a small diameter core from the existing structure.

Anchor / Rebar Pull Out Test

At the site it is often seen that doing the tensile test on the Anchors & Rebars becomes very important. Facts Pakistan provides qualified personnel to perform the tests, which are carried out using equipment that is calibrated regularly.

Capo Test

With the capo test the concrete is tested but by drilling and expanding a special insert in the concrete which is then pulled out. In this configuration, failure of the concrete is due to compression, and hence the pulling force is a direct measure of the compressive strength.

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