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Fatigue testing of reinforced-concrete steel bars 1. Introduction The fatigue strength of reinforced concrete bars has been the subject of research for many years. Usually the fatigue characteristics of reinforced-concrete steel bars are studied with axial fatigue tests using conventional testing machines and specimens in the as-delivered state, usually ribbed rods. The advantages of axial tests include low costs at a relatively high testing frequency (up to 200 Hz) and the possibility of defining test conditions precisely. A very significant disadvantage is related to problems connected with clamping bars in testing machines, where local stresses in bar clamping areas are responsible for the premature failure of the bars. It is also
Posted on 2021/02/04 07:05 PM
NDT Tests on Concrete NDT stands for Non-Destructive Testing and these tests carry out in so many different fields like construction, pressure vessels, boilers, aircraft, trains, pipelines, and etc. And this post will outline NDT Tests on concrete. These tests carry out assuring the current state without doing any damage to the test specimen (building, component, or materials). There is a wide range of tests under this. For example, the following are some NDT Tests on concrete and several features test by NDT tests. Another important fact about the NDT test is that it is possible to execute these tests at any stage of the life cycle of infrastructure. NDT tests carry out to test the following. Estimating the in-situ
Posted on 2021/01/16 11:34 AM
