Results 11 to 20 of about 2,314 (284)
Calibration and Reliability of the Rebound (Schmidt) Hammer Test [PDF]
Civil Engineering and Architecture, 2013 One of the most widely spread techniques to estimate the compressive strength of concrete is the rebound hammer test, also known as Schmidt Hammer test. In spite of a large number of scientific works trying to calibrate the test, to identify the parameters affecting its results and to estimate its reliability, the original Schmidt curve is still ...
BRENCICH, ANTONIO +3 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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Revised Rebound Hammer and Pull-Out Test Strength Curves for Fiber-Reinforced Concrete
Advances in Civil Engineering, 2020 Rebound hammer tests and postinstalled pull-out tests are commonly used for evaluating the compressive strength of ordinary concrete, and the strength of concrete is estimated by strength curves.
Peng Deng +3 more
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Buildings, 2023 Enhancing the assessment of compressive strength and the efficiency of rebound hammers in non-destructive testing for high-strength concrete is an urgent issue in construction engineering.
Jinming Chen +3 more
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MachinesThe objective of this study is to analyze the piston rebound energy storage characteristics of the nitrogen-hydraulic combined impact hammer and to investigate the manner in which the piston rebound energy is converted and utilized.
Hu Chen, Boqiang Shi, Hui Guo
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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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Applied SciencesAcoustic emission monitoring (AEM) has emerged as an effective technique for detecting wire breaks resulting from, e.g., stress corrosion cracking, and its application on prestressed concrete bridges is increasing.
Max Käding, Steffen Marx
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Rebound Hammer Test: An Investigation into Its Reliability in Applications on Concrete Structures
Advances in Materials Science and Engineering, 2020 The issue of concrete strength often arises in civil engineering practice, either due to quality control of new constructions or due to the assessment of existing structures.
Antonio Brencich +4 more
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Concrete density estimation by rebound hammer method [PDF]
AIP Conference Proceedings, 2016 Concrete is the most common and cheap material for radiation shielding. Compressive strength is the main parameter checked for determining concrete quality. However, for shielding purposes density is the parameter that needs to be considered. X- and -gamma radiations are effectively absorbed by a material with high atomic number and high density such ...
Mohamad Pauzi bin Ismail +7 more
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Frontiers in Materials, 2020 Compressive strength is probably one the most crucial properties of concrete material. For existing structures, core samples are drilled and tested to obtain the concrete compressive strength.
Yu Ren Wang, Yen Ling Lu, Dai Lun Chiang
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