Results 71 to 80 of about 1,039 (167)
Three-dimensional (3D) concrete printing (3DCP) has gained significant attention over the last decade due to its many claimed benefits. The absence of effective real-time quality control mechanisms, however, can lead to inconsistencies in extrusion ...
Luis de la Flor Juncal +3 more
doaj +1 more source
Perbedaan Hasil Uji Ultrasonic Pulse Velocity (UPV) Beton pada Mode Frekuensi Auto dan 50x
ABSTRACT.Ultrasonic Pulse Velocity (UPV) is a widely used non-destructive testing method for evaluating concrete, rock, and building structures by measuring the propagation velocity of longitudinal ultrasonic waves through concrete. UPV instruments are equipped with several operational parameters, including frequency, voltage, and signal transmission ...
Salam, Daru, Yachya, Muchamad Amirul
openaire +2 more sources
Prediction of Lighweight Concrete Panel Homogeneity by Ultrasonic Pulse Velocity (UPV) [PDF]
Faqih Ma'arif +2 more
openaire +1 more source
Mastering the rheology of self-compacting concrete (SCC) remains a major challenge for researchers. One of the main obstacles is segregation, an undesirable phenomenon where aggregates separate from the matrix, thus compromising the quality and homogeneity of the material. This study aims to use the ultrasonic pulse velocity (UPV) measurement technique
Moulaï Abdellah Bouabdallah +2 more
openaire +1 more source
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 +2 more
openaire +2 more sources
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 +5 more
openaire +1 more source
Oil palm trunk is one of the main oil palm biomass generated in palm oil plantations with limited use. This study investigates the effect of varying OPTF weight fractions (0%, 2%, 4%, 6%, and 8%) on the properties of foamed concrete (FC) with densities ...
Md Azree Othuman Mydin +8 more
doaj +1 more source
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 +2 more
doaj +1 more source

