Abstract: Based on the field tests of fly ash concrete with a maximum exposure time of 840 days, the effects of fly ash content and exposure time on gas permeability of concrete were studied. A time-dependent gas permeability ...

Abstract: This paper develops an analytical approach to evaluate the mean boundary shear stress in rectangular ice-covered channels. The flow cross section was divided into an upper ice layer and a lower bed layer at the plane of ...

Abstract: The erosion and wear in the gun barrel will get worse with an increase in the number of projectiles fired. Generally speaking, the ballistic performance of the gun, measured through indicators ...

Abstract: Time-dependent chloride diffusivity can reflect the chloride transport in concrete, which is greatly affected by different factors such as material composition and environment condition. In this paper, three tests with ...