Results 11 to 20 of about 15,172 (317)

Predicting the Compressive Strength of Concrete By Ultrasonic Pulse Velocity [PDF]

open access: yesIOP Conference Series: Materials Science and Engineering, 2021
Abstract The key resolution of non-destructive methods applied to concrete structures is to offer a suitable estimate of the quality of the material. One of the modern methods used in the test of concrete strength is the non-destructive testing applying the ultrasonic pulse velocity (UPV).
O Ofuyatan   +3 more
core   +3 more sources

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   +2 more sources

Methodology for Determining the Correct Ultrasonic Pulse Velocity in Concrete

open access: yesBuildings
Quite often, concrete strength parameters must be determined in the shortest possible time. Due to the strong correlation between concrete’s mechanical and acoustic properties, ultrasonic devices can be used for this purpose. However, the ultrasonic pulse velocity (UPV) is influenced by a variety of factors, including the curing and exploitation ...
Uldis Lencis   +3 more
openaire   +4 more sources

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   +2 more sources

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

open access: yesMATEC 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   +4 more
doaj   +3 more sources

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   +3 more sources

Frost influence on the ultrasonic pulse velocity in concrete at early phases of hydration process

open access: yesCase Studies in Construction Materials, 2021
Quite often concrete strength parameters have to be determined at an early age. Due to the strong correlation existing between the mechanical and acoustic properties of concrete, ultrasonic devices can be used for this purpose.
Uldis Lencis   +2 more
doaj   +2 more sources

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

open access: yes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   +5 more
doaj   +2 more sources

Residual Compressive Strength Prediction Model for Concrete Subject to High Temperatures Using Ultrasonic Pulse Velocity. [PDF]

open access: yesMaterials (Basel), 2023
This study measured and analyzed the mechanical properties of normal aggregate concrete (NC) and lightweight aggregate concrete (LC) subjected to high temperatures. The target temperature was set to 100, 200, 300, 500, and 700 °C, and W/C was set to 0.41,
Kim W, Choi H, Lee T.
europepmc   +2 more sources

Compressive Strength and Ultrasonic Pulse Velocity of Concrete with Metakaolin [PDF]

open access: yesCivil Engineering and Architecture, 2020
The intention of the present study is to assess the possibility of using Metakaolin as a partial replacement of Portland Pozzolana Cement (PPC) in the concrete to improve its workability and compressive strength. It also explores the study on the connection between ultrasonic pulse velocity (UPV) on different replacement percentage of mineral ...
Mayuri A. Chandak, P. Y. Pawade
openaire   +2 more sources

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