Method of non destructive testing of concretmethods of test, part 2. Few of the widely used tests, but not limited to, for estimation of strength of concrete in place are proposed below. The underlying principle of this test is the method consists of measuring the time of travel of an ultrasonic pulse passing through the concrete being tested. In order to search the specific is book enter the code number ex. The rebound of an elastic mass depends on the hardness of the surface against which its mass strikes. Rebound hammer schmidt test, used to evaluate the surface hardness of concrete. The underlying principle of the rebound hammer test is. Rebound hammer test is done to find out the compressive strength of concrete by using rebound hammer as per is. With our selection of quality brands and expert advice, we help boost your vehicles performance and make a statement on or off the road. Divisional index public safety standards of the republic of india. After curing the cube is taken out and kept in air for sometime so that the surface gets dried 7. No product specific test material of performed test 14 ceramic tiles i dimensions and glazed tiles surface quality unglazed tiles ii water absorption ceramic unglazed iii modulus of rupture.
The ultrasonic pulse velocity was carried out according to is 311part 1. Table 3 quality of concrete from rebound number table 4 ultrasonic pulse velocity as per is code no. Effect of graphene oxide on mechanical and durability. Schmidt hammer rebound hammer test is done to find out the compressive strength of concrete by using rebound hammer as per is. Made available to the public under the provisions of the bureau of indian standards act of 1986 and the right to information act of 2005. Nondestructive testing of concrete methods of test. Combined use of nondestructive tests for assessment of. Two papers for single implant supporting 2 unit cantile. Case study on nondestructive testing on concrete structures submitted by. Principle the rebound of an elastic mass depends on the hardness of the surface against which its mass strikes. Pdf non destructive testing of bridge pier a case study. For this, the rebound hammer is tested against the test anvil made of steel having brinell hardness number of about 5000 nmm2. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to.
The quality of the concrete in relation to standard requirements, 5. This work begins with an overview of the condition assessment of old bridge and explained reasons for demolishing of the bridge. Briefly presented flexural analysis of two stage posttensioned prestressed concrete girder, which will be replace the old new bridge. Access study documents, get answers to your study questions, and connect with real tutors for civil engi 102. Rebound hammer by bureau of indian standards publication date 1992 name of standards organization. January 1, 1992 nondestructive testing of concretmethods of test. However, within limits, empirical correlations have been established between strength properties and the rebound number. Whether youre looking to maintain, optimize, or upgrade, we offer competitive pricing on rugged ridge tail light covers 311. Nondestructive testing of concrete by rebound hammer. The objective of a non destructive test is to obtain an estimate of. Testing services rebound hammer rebound hammer test is done to find out the compressive strength of concrete by using rebound hammer as per is. Nondestructive testing of concretemethodsoftest part 2 rebound hammer rebound is read off along a graduated scale and is designated as the rebound number or rebound index.
Construction of igirder and composite girder at first stage and second stage prestressing respectively is explained with figures. Ankita kulkarni 243037 sandhya silotia 243072 sangamesh kotarki 243074 nondestructive testing on concrete structures a case study guided by. July 1992 method 11 toxicity characteristic leaching procedure 1. Method of nondestructive testing of concret methods of test, part 2. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them. Case study on non destructive testing on concrete structures. Rebound hammer test on concrete principle, procedure. The load should be increased for calibrating rebound hammers of greater impact energy and decreas. Method of nondestructive testing of concretmethods of. The fixed load required is of the order of 7 nmm8 when the impact energy of the hammer is about 2. Procedure for rebound hammer test on concrete structure starts with calibration of the rebound hammer.
Material testing house india limited, visakhapatnam field. The instrument generate pulse of ultrasonic frequency, which are coupled into the concrete specimen under test by the transmitting transducer. Method of nondestructive testing of concret, part 1. Non destructive testing of bridge pier a case study. Pdf assessment of compressive strength of concrete. A technique used for strengthening of existing columns. In reporting the result of a test or analysis made in accordance with this standard, is. Rugged ridge door handle inserts brushed aluminum 311. Summary as part of an investigation on the effect of temperature on the crushing strength of concrete, tests have been carried out using 2 in. Rebound hammer test was performed as per guidelines given by is. Based on results and observations we can give some remedial measures are as follows. Use the search bar on the table to find the specific is codebook as per your requirement.
Changes in the structure of the concrete which may occur with time, 4. When the plunger of the rebound hammer is pressed against the surface of the concrete, the springcontrolled mass rebounds and the extent of such a. Human hair fibre reinforced concrete ijert journal. Assessment of replacement bridge using proof load test. Comparatively higher velocity is obtained when concrete quality is good in terms of density, uniformity, homogeneity. There is little apparent theoretical relationship between the strength of concrete and the rebound number of the hammer. Rebound hammer test schmidt hammer testing on concrete. Nondestructive evaluation of concrete structures a case.
Mechanical, technical and biological complications were reported with a cumulative 510years complication rate of 28. A thin layer of coupling gel was applied to facilitate higher signal. Method of nondestructive testing of concretmethods of test, part 2. The presence of cracks,voids and other imperfections, 3. Method of non destructive testing of concret, part 1. Case study on non destructive testing on concrete structures 1. Part 2 rebound hammer a description is not available for this item.
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