Results 41 to 50 of about 58,501 (293)
Mechanical Properties of Concrete and Mortar Containing Low Density Polyethylene Waste Particles as Fine Aggregate [PDF]
, 2020 Iraq industrial activities related to huge amounts of solid, non-biodegradable waste, waste low density Polyethylene (LDPE) plastic being among the well-known. So in this study, the scarped LDPE food boxes were transformed into fine particles and used as
HILAL, Nahla +3 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
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An Ultrasonic Sensor for Distance Measurement in Automotive Applications [PDF]
, 2001 This paper describes an ultrasonic sensor that is able to measure the distance from the ground of selected points of a motor vehicle. The sensor is based on the measurement of the time of flight of an ultrasonic pulse, which is reflected by the ground. A
Carullo, Alessio, Parvis, Marco
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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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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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Investigation of Concrete Segregation by Ultrasonic Pulse Velocity
Journal of Architectural Engineering Technology, 2017 Segregation is the separation of the components of fresh concrete or mortar, which can be caused by bad proportioning, insufficient mixing or excessive vibration. There are several tests which can be measured on hardened concrete or at the beginning of hardening. These are generally based on the percentage of the Fine aggregates between the top and the
Grini Abdelouaheb, Benouis Abdelhalim
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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
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Wind Energy and the Turbulent Nature of the Atmospheric Boundary Layer [PDF]
, 2012 Wind turbines operate in the atmospheric boundary layer, where they are exposed to the turbulent atmospheric flows. As the response time of wind turbine is typically in the range of seconds, they are affected by the small scale intermittent properties of
Allan Morales +25 more
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Correlation of Solid Dosage Porosity and Tensile Strength with Acoustically Extracted Mechanical Properties [PDF]
, 2018 Currently, the compressed tablet and its oral administration is the most popular drug delivery modality in medicine. The accurate porosity and tensile strength characterization of a tablet design is vital for predicting its performance such as ...
Cetinkaya, Centin +5 more
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