Virtual Work and Strain Energy
Consider a body of negligible dimensions subjected to a force F. Any displacement of the body from its original position […]
Vibratory Flow Meter
The vibratory flow meter (Szecsy 1997) was developed to measure the flow of concrete under simulated field conditions. The test
Vibropenetrator
The Vibropenetrator was developed by Komlos (1964) as a penetration test to measure the behavior of vibrated concrete. The device
Vicat Needle Test
The setting time of concrete, mortar, or paste can be measured as an indication of workability (Ferraris 1999). One of
Vibration Test Methods
Due to the wide use of vibration in placing concrete, many test methods measure the flow of concrete under vibration.
Vinyl Flooring
Flooring of this type is unbacked. For a discussion of backed vinyl, see below. It is intended for use on rigid
Vibrations
Although a floor system may be adequately designed from a strength standpoint, a serviceability problem will result if unacceptable vibrations
Ventilation
Ventilation is utilized for many different purposes, the most common being control of humidity and condensation. Other well-known uses include exhaust
Venting
Waste pipes are vented to the outside to balance the air pressure in various branches and to dilute any gases present.