Results 21 to 30 of about 10,245 (254)

Machine learning techniques to evaluate the ultrasonic pulse velocity of hybrid fiber-reinforced concrete modified with nano-silica

open access: yesFrontiers in Materials, 2022
It is evident that preparing materials, casting samples, curing, and testing all need time and money. The construction sector will benefit if these problems can be handled using cutting-edge techniques like machine learning. Also, a material’s ultrasonic
Kaffayatullah Khan   +5 more
doaj   +1 more source

Correlation of Schmidt Hammer Rebound Numbers with Ultrasonic Pulse Velocity and Slake Durability Index of Dolomitic Limestone of Khyber, North Pakistan

open access: yesInternational Journal of Economic and Environment Geology, 2022
The ultrasonic pulse velocity and slake durability index are the indirect techniques used widely for rock strength determination. Various experimental studies like slake durability apparatus, ultrasonic pulse velocity and ...
Naeem Abbasi   +3 more
doaj   +1 more source

Estimation of Flexural Strength of Plain Concrete from Ultrasonic Pulse Velocity

open access: yesJournal of Engineering, 2023
The aim of this study is to propose mathematical expressions for estimation of the flexural strength of plain concrete members from ultrasonic pulse velocity (UPV) measurements.
Ala’a Hussein. Alwan Al-Zuhairi
doaj   +1 more source

Assessment of Strength Development at Hardened Stage on High-Strength Concrete Using NDT

open access: yesApplied Sciences, 2020
This study proposes model formulae for predicting the strength of concrete by analyzing the relationships between the results of nondestructive testing (NDT) methods and the compressive strength of concrete specimens at the hardened stage.
Taegyu Lee, Jaehyun Lee, Hyeonggil Choi
doaj   +1 more source

The use of non-destructive tests to estimate Self-compacting concrete compressive strength

open access: yesMATEC Web of Conferences, 2018
Until now, there are few studies on the effect of mineral admixtures on correlation between compressive strength and ultrasonic pulse velocity for concrete.
Djamila Boukhelkhal, Mohamed Guendouz
doaj   +2 more sources

Ultrasonic wave propagation in thermally treated concrete up to 400 ºC

open access: yesRevista IBRACON de Estruturas e Materiais, 2021
The ultrasonic pulse velocity, obtained by ultrasonic non-destructive testing, has been applied to evaluate the concrete integrity. The attenuation parameters have shown more sensitivity to damage detection in the microstructure of concrete since they ...
Ana Carolina Costa Viana   +2 more
doaj   +1 more source

Assessment of concrete compressive strength by ultrasonic pulse velocity test

open access: yesIraqi Journal of Civil Engineering, 2020
One of the most popular non-destructive techniques is ultrasonic pulse velocity (UPV) which used in assessment of concrete properties. A statistical experimental program was carried out in the present study to establish an accurate relation between the ...
Mohammed Hmood Mohana
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

Using Support Vector Machine to Improve Ultrasonic Pulse Velocity Test for Concrete

open access: yesMATEC Web of Conferences, 2018
In the construction industry, to evaluate the compressive strength of concrete, destructive and non-destructive testing methods are used. Non-destructive testing methods are preferable due to the fact that those methods do not destroy concrete samples ...
Loan Ngo Tu Quynh, Wang Yu-Ren
doaj   +1 more source

Dimension Effect on the Ultrasonic Pulse Velocity

open access: yesInternational Journal of Geography and Geology, 2017
Ultrasonic pulse velocity test is non-destructive and relatively simple to carry out at both in-situ and laboratory conditions. The sonic velocity (SV) test has been used to determine the dynamic properties of rocks in different applications of rock and geotechnical engineering.
Hasan Arman   +4 more
openaire   +1 more source

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