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Understanding the rebound surface hardness of concrete
Journal of Civil Engineering and Management, 2015 Surface hardness testing of materials can be considered as the oldest method to get information about strength related material properties. In recent decades the rebound hammer has been the most popular surface hardness testing device for concrete ...
Katalin Szilágyi +2 more
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The Performance of Empirical Laws for Rebound Hammer Tests on Concrete Structures
Applied Sciences, 2022 The assessment of concrete compressive strength plays a key role in the analysis of the seismic vulnerability of existing buildings. However, the adoption of classical destructive tests is usually limited by their invasiveness, cost and time needed for ...
Mariella Diaferio, Francisco B. Varona
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Energy partition at the collapse of spherical cavitation bubbles [PDF]
, 2012 Spherically collapsing cavitation bubbles produce a shock wave followed by a rebound bubble. Here we present a systematic investigation of the energy partition between the rebound and the shock.
de Bosset, Aurele +5 more
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Journal of Physical Fitness and Sports Medicine, 2016 We investigated the relationships between the lower-limb joint kinetic parameters of sprint running and rebound jump during the support phases in 16 male track and field athletes performing sprint running and rebound jump at maximal effort.
Yasushi Kariyama, Koji Zushi
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Diagnosis and Prediction of Market Rebounds in Financial Markets [PDF]
, 2010 We introduce the concept of "negative bubbles" as the mirror image of standard financial bubbles, in which positive feedback mechanisms may lead to transient accelerating price falls. To model these negative bubbles, we adapt the Johansen-Ledoit-Sornette
Sornette, Didier +2 more
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IOP Conference Series: Earth and Environmental Science, 2022 Abstract Increased energy efficiency led to increased economic growth, the energy used in the economy, and overall production. Unfortunately, the rebound effect and carbon emissions were adverse effects on the final result of energy efficiency.
Eka Sudarmaji +3 more
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Repeatability of concrete rebound hardness using comprehensive statistical analysis
Journal of King Saud University: Engineering Sciences, 2023 The reliability of the result significantly affects the use of the Coefficient of Variation (within the test variation), which reflects the variability of the concrete properties rather than the standard deviation.
Hemraj R. Kumavat, Narayan R. Chandak
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, 2021 Hammer rebound index is an indirect measure that has traditionally been used to estimate the compressive strength of concrete through the use of statistical models. It is especially useful in the quality control performed during the construction of a concrete structure, as well as in rehabilitation works.
Víctor Revilla-Cuesta +4 more
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Interday Reliability and Usefulness of a Reactive Strength Index Derived From 2 Maximal Rebound Jump Tests [PDF]
International Journal of Sports Physiology and Performance, 2019 Purpose: To examine the interday reliability and usefulness of a reactive strength index (RSI) derived from a maximal 5-rebound jump test (5max RJT) and a maximal 10-rebound jump test (10/5 RJT). Methods: Twenty male field-sport athletes (24.5 [3.0] y, 1.78 [0.1] m, 84.9 [5.2] kg) and 15 female participants (21.1 [0.9] y, 1.65 [0.73] m, 62.0 [5.1] kg ...
Thomas M, Comyns +4 more
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Engineering Structures and Technologies, 2015 A comparative spatial analysis of surface hardness of structural concrete is introduced. Main objective of the paper is to make a repeatability comparison of three types of the still most popular non-destructive testing devices for concrete: L-type ...
Adorján Borosnyói
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