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No matter how good construction practices are things can always go wrong with concrete placement. Defect can also grow in the form of cracking and delamintion due to deterioration of a concrete element. The testing for finding defects in concrete are becoming more and more advanced and hence gaining greater accuracy. Take a look at these advanced NDT techniques for finding defects in concrete.
Concrete Defect Location Testing
/Products/Defect-Location-Testing/Impact-Echo/Image-1.aspx) Impact Echo (IE) can be used to investigate slabs, beams, walls, pavements, runways, tunnels and dams.It can measure the thickness of concrete elements from one-side. It can also be used to find voids, honeycombing, cracks, delaminations, and other damage in concrete, giving: depth, lateral location and extent of a flaw or defect.
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/Products/Defect-Location-Testing/SE-IR/Image-1.aspx) Sonic Echo / Impulse Response (SE/IR) investigations are performed to evaluate to integrity and determine the length of deep foundations. The test can also be performed on shallow wall structures. The SE/IR test can be performed on concrete, wooden and steel piles. It can be used to determine the depth of a foundation, find breaks, cracks, defects, intrusions and bulbs in the foundation. The beauty of these two methods is that they use the same raw data but treat it differently.
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/Products/Defect-Location-Testing/Slab-IR/Image-1.aspx) Slab Impulse Response (Slab IR) offers a system for this purpose, the idea being to conduct quick screening for flaws and identifying suspect areas nondestructively, for later detailed analysis, e.g. by impact-echo, or for visual inspection of drilled out cores. Its main application are loocation of voiding beneath concrete slabsand finding shallow delaminations or honeycombing.
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/Products/Defect-Location-Testing/CSL/Image-1.aspx) Crosshole Sonic Logging (CSL) is the most accurate and reliable technique for assessing the integrity of deep foundation elements such as newly placed concrete drilled shafts and slurry walls, particularly when drilling below groundwater level. The CSL testing procedure can detect anomalies inside concrete within just minutes. Crosshole Tomography (CT) is a higher resolution analysis which defines the size, shape, severity and location of defects.
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/Products/Defect-Location-Testing/SASW/IMage-1.aspx) SASW tests allow the user to determine; the different profiles in their pavement system, their depth, and condition of each of these layers. This can all be done non-destructively. The test can be performed on concrete, asphalt, masonry, soil and wood and can be used to investigate profiles up to 90 meters deep.
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/Products/Defect-Location-Testing/MIRA/Image-1.aspx) The age of full concrete imaging has arrived. The revolutionary MIRA Ultrasonic Imaging System brings the future to the present. The system uses ultrasonic pulse echo technology to locate voids, cracking and concrete thickness.
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