Results 11 to 20 of about 19,752 (294)

Concrete density estimation by rebound hammer method [PDF]

open access: yesAIP 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
openaire   +1 more source

Adapting Artificial Intelligence to Improve In Situ Concrete Compressive Strength Estimations in Rebound Hammer Tests

open access: yesFrontiers 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
doaj   +1 more source

Calibration and Reliability of the Rebound (Schmidt) Hammer Test [PDF]

open access: yesCivil 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
openaire   +3 more sources

Prediction of Compressive Strength of Reinforced Concrete Structural Elements by Using Combined Non-Destructive Tests

open access: yesJournal of Engineering, 2023
This research is devoted to investigate relationship between both Ultrasonic Pulse Velocity and Rebound Number (Hammer Test) with cube compressive strength and also to study the effect of steel reinforcement on these relationships.
Nada Mahdi. Fawzi   +2 more
doaj   +1 more source

Estimation of uniaxial compressive and indirect tensile strengths of intact rock from Schmidt hammer rebound number

open access: yesJournal of the Mechanical Behavior of Materials, 2023
A number of destructive and non-destructive tests were conducted on rock samples collected from various zones in northern Iraq. So far, for Iraqi rocks, few studies have correlated Schmidt hammer rebound (R) with both unconfined compressive strength (UCS)
Fadhil Amjad Ibrahim   +2 more
doaj   +1 more source

Repeatability of concrete rebound hardness using comprehensive statistical analysis

open access: yesJournal 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
doaj   +1 more source

Revised Rebound Hammer and Pull-Out Test Strength Curves for Fiber-Reinforced Concrete

open access: yesAdvances 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
doaj   +1 more source

Comparison between Destructive and Non-Destructive Test on Concrete [PDF]

open access: yesEurasian Journal of Science and Engineering, 2017
Compression strength is the most important factor in concrete structures, and there are two methods to evaluate that compressive strength, destructive and non-destructive method.
Junaid Kameran Ahmed   +1 more
doaj   +1 more source

Rammed Earth Construction: A Proposal for a Statistical Quality Control in the Execution Process [PDF]

open access: yes, 2020
Unlike other common contemporary construction materials such as concrete, mortars, or fired clay bricks, which are widely supported by international standards and regulations, building with rammed earth is barely regulated.
Canivell, Jacinto   +3 more
core   +1 more source

NDT assessment of existing concrete structures: spatial analysis of rebound hammer results recorded in-situ

open access: yesEngineering 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
doaj   +1 more source

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