Results 41 to 50 of about 10,245 (254)
Applied Sciences, 2021 This work aims to study the relationship between the compression resistance and velocity from ultrasonic pulses in samples of mortars with 25% of pozzolanic content.
Leticia Presa +2 more
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Predicting the Compressive Strength of Concrete By Ultrasonic Pulse Velocity
IOP 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
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Alexandria Engineering Journal, 2012 This study aims to investigate the relationships between Schmidt hardness rebound number (RN) and ultrasonic pulse velocity (UPV) versus compressive strength (fc) of stones and bricks.
Ali Abd Elhakam Aliabdo +1 more
doaj +1 more source
Frost influence on the ultrasonic pulse velocity in concrete at early phases of hydration process
Case 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
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Compressive Strength and Ultrasonic Pulse Velocity of Concrete with Metakaolin [PDF]
Civil 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
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Ultrasonic pulse velocity and physical properties of hybrid composites: A statistical approach
Hybrid Advances, 2023 This work describes the correlations between the ultrasonic pulse velocity (UPV) and physical properties of fibrous-particulate hybrid composites made of glass/carbon fabrics and three different micro-inclusions such as silica particles, recycled carbon ...
Sergio Luiz Moni Ribeiro Filho +6 more
doaj +1 more source
FEBS Letters, EarlyView.An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley +1 more source
An Investigation On Ultrasonic Pulse Velocity Of Hybrid Fiber Reinforced Concretes
, 2016 Because of the easy applying and not costing too much, ultrasonic pulse velocity (UPV) is one of the most used non-destructive techniques to determine concrete characteristics along with impact-echo, Schmidt rebound hammer (SRH) and pulse-echo. This article investigates the relationship between UPV and compressive strength of hybrid fiber reinforced ...
taymuş, refik burak +3 more
openaire +3 more sources
Advanced Engineering Materials, EarlyView.In this review, the current state of light‐assisted 3D printing as it pertains to engineering musculoskeletal tissues including bone, cartilage, skeletal muscle, tendon, and ligaments is summarized. Common printing techniques, photoreactive materials, and study design choices are compiled and reviewed.
Meagan Morgan, Bin Zhang, Roger Narayan
wiley +1 more source
Advanced Functional Materials, EarlyView.ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo +10 more
wiley +1 more source