Results 221 to 230 of about 10,266 (252)

Studies in ultrasonic pulse velocity of concrete containing GGBFS

Construction and Building Materials, 2013
Abstract This paper presents the results of experimental investigations into the time-dependent ultrasonic pulse velocity (UPV) of concrete containing GGBFS. The UPV was determined at the age of 3, 7, 28, 56, 90, 150 and 180 days for twelve concrete mixes using the prism specimens of plain and GGBFS concrete.
Mohd Shariq, Jagdish Prasad, Amjad Masood   +2 more
openaire   +1 more source

Ultrasonic Pulse Velocity Technique for Inspection and Evaluation of Timber

Journal of Materials in Civil Engineering, 2000
The ultrasonic pulse velocity technique was used to assess the structural integrity of timber elements in monumental buildings. Six species of timber of different strength values were selected to establish the pulse velocity ranges. The effect of moisture content, specific gravity, internal voids, and external voids on the pulse velocity was measured ...
T. Shaji, S. Somayaji, M. S. Mathews
openaire   +1 more source

Modifications to Standard Pulse Techniques for Ultrasonic Velocity Measurements

The Journal of the Acoustical Society of America, 1959
A description is given of modifications to the “sing-around” and coincidence techniques for velocity measurement. In the case of the “sing-around” method a gate is incorporated which effectively lengthens the ultrasonic path by allowing retriggering on multiply reflected pulses. This allows the use of short solid specimens having low attenuation.
A. Myers, L. Mackinnon, F. E. Hoare
openaire   +1 more source

Prediction of Ultrasonic Pulse Velocity of Concrete

2022
Tanvi Singh, Balraj Singh, Sunita Bansal, Khyati Saggu   +3 more
openaire   +1 more source

The Ultrasonic Pulse Velocity Method

2003
Tarun Naik, V Malhotra, John Popovics
openaire   +2 more sources

Measurement of the Velocity and Attenuation of Ultrasonic Pulses in the Presence of Noise

Review of Scientific Instruments, 1969
The well developed techniques of coherent detection and signal averaging may be used to extend the range and accuracy of measurements of ultrasonic velocity and attenuation. Significant improvements in signal-to-noise ratio are obtained by averaging a coherently detected echo train in a signal averager such as a multichannel analyzer or boxcar ...
openaire   +1 more source

The ultrasonic pulse velocity method

NDT & E International, 1991
openaire   +1 more source

Ultrasonic Pulse Velocity Methods

1995
openaire   +2 more sources

Effect of variation of steel reinforcement on ultrasonic pulse velocity prediction in concrete beam

Materials Today: Proceedings, 2022
Rama Shanker
exaly  

Setting time and compressive strength prediction model of concrete by nondestructive ultrasonic pulse velocity testing at early age

Construction and Building Materials, 2020
Jaehyun Lee, Taegyu Lee
exaly