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Evaluation of Schmidt Rebound Hammer Testing: A Critical Approach

Bulletin of Engineering Geology and the Environment, 1993
In the present paper, a critical approach to the evaluation of Schmidt hammer testing is attempted. Through a statistical analysis of field measurements on sandstone blocks from the archaeological site of Delphi (Greece), it was shown that there is an inconsistency in the correction method proposed by the manufacturer, in relation to the direction of ...
E Kolaiti
exaly   +2 more sources

Testing of Concrete by Rebound Method: Leeb Versus Schmidt Hammers

Materials and Structures/Materiaux Et Constructions, 2018
Hardness is considered as an important property of concrete; it can be used to estimate compressive strength of concrete in situ. The classic Schmidt rebound hammer is the most popular nondestructive method to measure concrete surface hardness, while the Leeb rebound hammer has been extensively studied in geological and metallographic fields over ...
Konstantin Kovler
exaly   +2 more sources

Rebound Hammer Test to Estimate Compressive Strength of Heat Exposed Concrete

Construction and Building Materials, 2018
Abstract The residual concrete strength is required for evaluating the safety of reinforced concrete structures after fire. Based on the surface hardness of concrete, a rebound hammer test has been used to evaluate the compressive strength at the ambient temperature and after fire.
Danupon Tonnayopas
exaly   +2 more sources

High-Strength Concrete – NDT With Rebound Hammer: Influence of Aggregate on Test Results

Nondestructive Testing and Evaluation, 2014
Rebound hammer is the most frequently used non-destructive method for estimation of concrete strength. Measurement results are influenced by various factors (components and composition of concrete, humidity or age), which are well known for normal-weight concrete. High-strength concrete (HSC) differs in quality and the question is to which extent these
Jiri Brozovsky
exaly   +2 more sources

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