Results 101 to 110 of about 4,622 (211)

Post-heating strength prediction in concrete with Wadi Gyada Alkharj fine aggregate using thermal conductivity and ultrasonic pulse velocity

Reviews on Advanced Materials Science
The continuous demand for economical high-performance thermally resilient concrete with superior mechanical behavior is pivotal for sustainable concrete infrastructure.
Almuaythir Sultan
doaj   +1 more source

Study of the damage evolution of the concrete under freeze-thaw cycles using traditional and non-traditional techniques [PDF]

, 2011
Some experiments have been performed to investigate the cyclic freeze-thaw deterioration of concrete, using traditional and non-traditional techniques. Two concrete mixes, with different pore structure, were tested in order to compare the behavior of a
Casati Calzada, María Jesús, Gálvez Ruiz, Jaime, Molero, Miguel, Romero Mendoza, Héctor Leonardo, Segura Pérez, Ignacio   +4 more
core  

Nilai Kuat Tekan Beton Berbahan Tambah Serat Masker Medis Berbasis Metode Non-Destructive Test menggunakan Ultrasonic Pulse Velocity (UPV)

Jurnal Linears
Dampak dari munculnya wabah virus covid 19 di tahun 2019 membuat Indonesia menghasilkan limbah masker medis di urutan tertinggi di dunia yaitu 1,8 miliar per hari. Masker medis mengandung 90% plastik polypropylene yang merupakan mikroplastik dengan sifat sulit terurai.
Mushar, Pratiwi, Nasruddin, Nasruddin, Rasyadi, Muh. Gufran   +2 more
openaire   +2 more sources

Mechanical properties and nondestructive testing of cemented mass of unclassified tailings under freeze-thaw cycles

工程科学学报, 2019
Tailings consolidation discharge can effectively solve the problem of tailings disposal. However, the tailings pile after consolidation is mostly on the surface, and its performance is greatly affected by the natural environment.
Yun-bing HOU, Xing ZHANG, Pan LI, Peng-chu DING, Shu-xiong CAO, Dong HAN   +5 more
doaj   +1 more source

Comparison of Setting Time Measured Using Ultrasonic Wave Propagation with Saw-Cutting Times on Pavements [PDF]

, 2015
At present, there is little fundamental guidance available to assist contractors in choosing when to schedule saw cuts on joints. To conduct pavement finishing and sawing activities effectively, however, contractors need to know when a concrete mixture ...
Taylor, Peter, Wang, Kejin, Wang, Xin, Wang, Xuhao   +3 more
core   +3 more sources

Non-destructive evaluation of reclaimed asphalt cement concrete [PDF]

Reclaimed asphalt (RA) has been increasingly used as an alternative aggregate in the manufacture of low to medium strength cement concrete. It is the aim here to investigate the behaviour and properties of concrete made with RA, using ultrasonic pulse ...
Fried, AN, Latif Al-Mufti, RA
core   +1 more source

NDT-based Condition Assessment of Concrete Tanks in Mine Facilities

e-Journal of Nondestructive Testing
This paper presents a comprehensive condition assessment of two large reinforced concrete tanks at a mining facility in Canada, using a multi-method approach.
Mohammadhossein Afsharipour, Richard Malantic, Farid Moradi Marani, Hamed Layssi   +3 more
doaj   +1 more source

Data mining techniques and ultrasonic pulse velocity tests for the assessment of damage levels in concrete exposed to high temperatures and subject to compression [PDF]

, 2009
A Data Mining (DM) process was applied, aiming to develop a numerical tool for the assessment of the level of damage (measured from a strain parameter) of concrete columns subject to high temperature exposure (or fire).
Barros, Joaquim A. O., Lourenço, Lúcio, Marques, Rui Filipe Pedreira   +2 more
core  

Testing of Concrete Structures with Non-Destructive Test Method (NDT) Using Ultrasonic Pulse Velocity (UPV) at the Building on the Ancol Beach

CIVED
The UPV test procedure with the PUNDIT device is set based on the concept of the wave flow speed passing through a solid object bound to the elastic properties of a tangible medium. When used properly and correctly, this tool will provide a lot of information about the condition of the surface or the inside of the concrete.
Zel Citra, Paksi Dwiyanto Wibowo, Yosie Malinda, Anom Wibisono, Risma Apdeni, Herol Herol   +5 more
openaire   +1 more source

Non-Destructive Concrete Strength Evaluation Using PZT Based Surface Wave Propagation Technique – A Comparative Study

MATEC Web of Conferences, 2016
Surface wave propagation (SWP) technique employing Lead Zirconate Titanate (PZT) transducer has recently been found to be a useful tool in concrete hydration monitoring.
Kwong Kok Zee, Lim Yee Yan, Liew Willey Yun Hsien   +2 more
doaj   +1 more source