Quality control of Concrete Caissons is a challenging task. Engineers, and contractors rely on experience and well-established procedures and test standards to verify the strength, and consistency of pile materials. Non-destructive testing help reveal potential defects that might have happened during pile casting (in the case of cast-in-place piles), or transportation and installation (in the case of precast piles). Share on linkedin Share on facebook Share on twitter Share on… Read More »Quality Control of Concrete Caissons
This article describes non-destructive testing (NDT) applications and evaluation in the inspection and condition assessment of culvert structures. Depending on their particular application, concrete culverts can be exposed to water, wastewater, and other chemicals. This can result in the deterioration of culverts during their life cycle. Non-destructive testing can help engineers in evaluating the location and extent of defects. What is a Culvert? A culvert is generally defined as a… Read More »Inspection and Condition Assessment of Culverts
This article describes the applications of non-destructive testing (NDT) and evaluation in the inspection and condition assessment of Concrete tanks. Depending on their particular application, concrete tanks are exposed to water, wastewater (sewer), and other aggressive chemicals. This can result in deterioration of concrete during its life cycle. Non-destructive Testing can help engineers in evaluating the location and extent of defects. Share on linkedin Share on facebook Share on twitter… Read More »Non-Destructive Testing of Concrete Tanks
Share on linkedin Share on facebook Share on twitter Share on telegram Share on whatsapp Share on email In this article, the basic principles and the advantages of Ground Penetrating Radar (GPR) in concrete scanning and its comparison to other concrete scanning NDT techniques will be presented. This technique is greatly beneficial to contractors and engineers working in the construction industry. What is Ground Penetrating Radar? Ground Penetrating Radar (GPR)… Read More »How to Scan Concrete using GPR ?
Extreme cold weather conditions can significantly affect the quality of concrete, as well as its mechanical properties. In cold weather concreting, one should make sure that all the negative impacts of low ambient temperature are appropriately alleviated by taking the necessary precautions. In this article, we will review important steps that can ensure you will get the quality you are looking for. But first, let’s see what cold temperature is… Read More »Precautions for Cold Weather Concreting
This articles describes how non-destructive testing can help structural engineers in the structural condition assessment of existing buildings, such as parking garages, condominiums, and other constructed facilities. Share on linkedin Share on facebook Share on twitter Share on telegram Share on whatsapp Share on email Structural Condition Assessment usually refers to the process of collecting observations and data about the existing condition of the structure through systematic and scientific methods.… Read More »Nondestructive Testing for Structural Assessment
A multi-technology approach using different Nondestructive Testing (NDT) technologies is becoming the new standard in structural condition assessment. Ground Penetrating Radar has proved to be an effective method in collective key information about the structural details, however, this interesting technology comes with inherent limitations. It is important to develop a good understanding of the capabilities of GPR, and cover its shortcomings with complimentary methods such as the Ultrasonic Pulse based… Read More »How to use GPR in Structural Assessment?
Nondestructive Testing have great applications in the concrete construction industry. It helps designer, construction engineers, and contractors the ability to verify the quality and integrity of built structures, identify and quantify potential defects, and record as-built condition like never before. The author has several years of combined research and industrial experience in helping construction industry in Canada, and has witnessed how NDT can help identify and quantify location and extent of potential… Read More »Applications of Nondestructive Testing in Concrete Construction
Crosshole Sonic Logging is an effective nondestructive testing method for deep foundations. Developed based on the principles of ultrasonic pulse velocity (UPV) test in concrete, the test can address some of the practical limitation that come with length/diameter (i.e. in low strain pile integrity test). The test can be used to collect precise information on the quality and integrity of concrete at different depths. Certain combination of ultrasonic probes enables… Read More »What is Crosshole Sonic Logging?
In this article, we will briefly present and discuss Impact-Echo (IE) method for testing concrete structures. The method has proven to be extremely useful in evaluating the thickness of concrete elements from one side (e.g. tunnel lining, culvert wall, bridge abutment), determining the depth and location of subsurface defects (e.g. cracks, voids, honeycombing, debonding) within concrete, and estimating the depth of surface-opening cracks. The test method was first adapted in… Read More »How to Test Concrete Using Impact Echo (IE) Method ?