Results 21 to 30 of about 1,549,653 (180)

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

MATEC 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

International 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, Sadieh Khosravi, Mawadah Abdullah Osman, Fatema Mohamed Alnaqbi, Aishah Abdullah AlYammahi   +4 more
openaire   +1 more source

Prediction of cemented backfill strength by ultrasonic pulse velocity and BP neural network

工程科学学报, 2016
Tailing-cemented backfill is a cement-based heterogeneous composite whose uniaxial compressive strength (UCS) and ultrasonic pulse velocity (UPV) are dependent on cement dosage, solid content, sample type, etc.
XU Miao-fei, GAO Yong-tao, JIN Ai-bing, ZHOU Yu, GUO Li-jie, LIU Guang-sheng   +5 more
doaj   +1 more source

Ultrasonic Propagation in Liquid and Ice Water Drops. Effect of Porosity

Sensors, 2021
This work studies ultrasonic propagation in liquid and ice water drops. The effect of porosity on attenuation of ultrasonic waves in the drops is also explored.
Michiel Mendonck, Sofía Aparicio, Cristóbal González Díaz, Margarita G. Hernández, Guillermo M. Muñoz Caro, José Javier Anaya, Stéphanie Cazaux   +6 more
doaj   +1 more source

The study of ultrasonic pulse velocity on plain and reinforced damaged concrete

MATEC Web of Conferences, 2018
An ultrasonic pulse velocity (UPV) test is often applied to determine the quality of concrete structures. It is well known that there are several factors which can influence the reading of ultrasonic velocity in concrete.
Kencanawati Ni Nyoman, Akmaluddin, Anshari Buan, Gazi Paedullah Ahmad, Shigeishi Mitsuhiro   +4 more
doaj   +1 more source

Application of ultrasonic pulse velocity technique and image analysis in monitoring of the sintering process [PDF]

Science of Sintering, 2011
Concrete which undergoes a thermal treatment before and during its life-service can be applied in plants operating at high temperature and as thermal insulation. Sintering occurs within a concrete structure in such conditions. Progression of sintering
Terzić A., Pavlović Lj., Mitić V.
doaj   +1 more source

Evaluate Brick Units by Ultrasonic Waves

Tikrit Journal of Engineering Sciences, 2005
Wide laboratory search was done to evaluate brick units in single, and test the prisms built from brick unit by use ultrasonic waves in non-destructive test. The results show that the pulse velocity increases with increasing compressive strength and time
Zain Al-Abdin Raouf, Hasan Jasim Mohammed Al-Badri, Amar Salem Khazal   +2 more
doaj   +3 more sources

Comparatively Study of Non-Destructive test with different methods in various curing days [PDF]

E3S Web of Conferences
In non-destructive testing, materials, components, or assemblies are inspected, tested, or evaluated without being destroyed. In nondestructive testing, materials, components, and assemblies are evaluated for quality and integrity without damaging them ...
Pahade Chandramohan, Parmar Umang, Salaam Ahmed, Rao D S N M, Manjunatha, Singla Atul, Rambabu Gottipati Venkata   +6 more
doaj   +1 more source

Statistical Equations to Estimate the In-situ Concrete Compressive Strength from Non-destructive Tests

Journal of Engineering, 2018
The aim of this study is to propose reliable equations to estimate the in-situ concrete compressive strength from the non-destructive test. Three equations were proposed: the first equation considers the number of rebound hummer only, the second equation
Ahmed Faleh Al-Bayati
doaj   +1 more source

Estimation of Mechanical and Durability Properties of Self-Compacting Concrete with Fibers Using Ultrasonic Pulse Velocity [PDF]

Journal of Rehabilitation in Civil Engineering, 2018
This study addressed the efficiency of ultrasonic pulse velocity (UPV) as a nondestructive test in concrete in estimating the mechanical (compressive and tensile strength) and durability (water absorption) properties of fiber-reinforced self-compacting ...
Masoud Fallahtabar Shiade, Hamidreza Tavakoli   +1 more
doaj   +1 more source