Weathering profile characterization is one of the significant information in interpretation condition rock. In addition, tropical climate Malaysia causes deep–seated weathering phenomena granitic The identification granite can be made using in–situ Schmidt hammer rebound test which non–destructive tests (NDT) that widely used. this study, carried out on rock Paya Terubong, Pulau Pinang. Based s...

In the construction industry, non-destructive testing (NDT) methods are gaining more popularity for their ability to examine the in-situ component properties without damaging the structure. One of the most common NDTs for measuring the concrete compressive strength on site is the Rebound Hammer Test. Using the rebound value obtained from the test hammer, the concrete compressive strength can be...

Abstract In the present work we discuss results of a number Schmidt hammer tests (total impacts N > 2,400) that were performed in situ on rock outcrops different lithology (marl, calcareous marl, limestone, sandstone, quartz sandstone and rhyolite) occur Italy. Firstly, specific field procedure to choose reference value rebound index adopted calculate UCS intact is suggested. A relationship ...

Theoretical approaches and code formulas assume the compressive strength of solid clay brickwork as a function bricks mortar. Such an approach is not so easy to be applied in practice since components may identified only by means indirect testing through rebound hammers or penetrometers. Since largely depends on brick properties, mortar playing minor role, low detailed fast estimate deduced fro...

Non-destructive testing (NDT) methods are important alternatives when destructive tests are not feasible to examine the in situ concrete properties without damaging the structure. The rebound hammer test and the ultrasonic pulse velocity test are two popular NDT methods to examine the properties of concrete. The rebound of the hammer depends on the hardness of the test specimen and ultrasonic p...

The determination of rock strength holds paramount importance in the field engineering geology. In this study, we conduct a comprehensive geostatistical evaluation unconfined compressive (UCS) within 100 km2 area situated northeast Jeddah, Saudi Arabia. UCS values were indirectly estimated using an empirical equation based on Schmidt hammer rebound method, resulting range strengths from 9.2 to ...

A hammer-string interaction for bass notes is investigated and the problem what can cause the hammer to rebound is clarified. For a linear elastic hammer interacting with a long flexible string the exact solution of the equation describing the hammer motion is derived. It was shown that in some cases no reflected wave is needed to assist the hammer for going away from the string. The numerical ...

Delamination is probably the most serious form of deterioration I which is commonly found in britlge decks. It ultimately results in large scale spalling necessitating costly repairs. This type of failure is believed to be caused chiefly from salt induced corrosion of the reinforcing steel. An instrument designed to detect delamination, and tests conducted to val:iAate its perf'ormance, are .br...

The uniaxial compressive strength (UCS) of rock is an essential property material in different relevant applications, such as slope, tunnel construction, and foundation. It takes enormous time effort to obtain the UCS values directly laboratory. Accordingly, indirect determination through conducting several index tests that are easy fast carry out interest importance. This study presents powerf...