Results 11 to 20 of about 15,949 (195)

Compressive strength assessment of recycled aggregate concrete using Schmidt rebound hammer and core testing [PDF]

open access: yesConstruction and Building Materials, 2019
Abstract The main objective of this study was to estimate the compressive strength of recycled aggregate concrete (RAC) by means of Schmidt rebound hammer and core testing. The use of recycled aggregate in concrete has been shown to lead to a decrease in the construction cost and it can reduce the burden on the environment by saving natural ...
Kazemi, Mostafa   +2 more
openaire   +3 more sources

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

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

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

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

Nondestructive Determination of Strength of Concrete Incorporating Industrial Wastes as Partial Replacement for Fine Aggregate

open access: yesSensors, 2021
Schmidt rebound hammer test was employed in this study as a nondestructive test. This test method has been universally utilized due to its non-destructiveness for quick and easy assessment of material strength properties and quality of concrete of an ...
Temple Chimuanya Odimegwu   +5 more
doaj   +1 more source

An Infrared Thermography Approach to Evaluate the Strength of a Rock Cliff

open access: yesRemote Sensing, 2021
The mechanical strength is a fundamental characteristic of rock masses that can be empirically related to a number of properties and to the likelihood of instability phenomena.
Marco Loche   +9 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

Rebound hammer tests of high-strength concrete: Effects of internal stress and the shape of the impact area of the test specimens on the measurement results [PDF]

open access: yes, 2019
This study examines the factors affecting the results of non-destructive testing of high-strength concrete performed on cubes and on cylinders and examines the processing of calibration relations.
Bodnarová, Lenka   +2 more
core   +2 more sources

A Novel Intelligent Rebound Hammer System Based on Internet of Things

open access: yesMicromachines, 2023
In order to improve the test efficiency of concrete strength and ensure measured data reliability, we present a novel intelligent rebound hammer system which is based on the Internet of Things (IoT) and speech recognition technology.
Zongqiang Pang   +3 more
doaj   +1 more source

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