Evaluation of Building Structural Stability by Using Rebound Hammer Test
Authors:- A.Paulmakesha, Professor Dr.S.Arivalaganb
Abstract-The quality problems encountered in concrete structures appear at different stages of the construction of works, It is for this reason that for a long time there has been an increased demand for more precise and, at the same time, more flexible methods of concrete quality assessment. This paper presents some notions concerning the Schmidt rebound hammer test and Rebar Locator test which is one of the non-destructive methods most used for the recognition of the condition of building structures. This test is quick and easy, it makes it possible to control the quality of the construction and to indirectly measure the compressive strength of concrete in situ. The rebound hammer calibration procedure was detailed on an example by presenting the different steps. I have selected five blocks ar Dr.M.G.R Educational and Research Institute, Maduravoyal, Chennai. It contains Anna block, Mother thesera block, Abdul Kalam block, Ramanujam Block and V.O.C Block. The location of rebar in reinforced concrete is a major examination item in the field of Construction. The location of rebar in reinforced concrete is a major examination item in the field of construction. As a kind of non-destructive testing method, I measure the magnetic susceptibility on the surface of reinforced concrete structures with a susceptibility meter. Rebar locator & corrosion detectors provide fast, accurate information to detect reinforcement bars in concrete, identifying rebar’s location, direction and an indication of the depth of concrete over the rebar. Non-destructive testing is a descriptive term used for the examination of materials and components in such way that allows materials to be examined without changing or destroying their usefulness. NDT is a quality assurance management tool which can give impressive results when used correctly. It requires an understanding of the various methods available, their capabilities and limitations, knowledge of the relevant standards and specifications for performing the tests. NDT techniques can be used to monitor the integrity of the item or structure throughout its design life. Structural audit is the overall health and performance checkup of the building like doctor check the patient. Structural audit helps to understand the status of the old building. The Audit helps to highlight & investigate all the risk areas, critical areas and whether the building. needs immediate attention.