The additive conditions of this table help the user/specifier determine where the concrete is to be placed in relationship to the exposure of the two primary conditions, freeze-thaw cycles and ...

As the fire service has evolved, so have our tools to deliver the primary extinguishing agent, water, to the seat of the fire. What was once delivered with a smooth-bore nozzle can now be applied in ...

The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...

Understanding the fundamentals of hose stream mechanics is vital to the success of fire suppression operations on the fireground. This includes understanding: when and how to utilize air entrainment ...

BASF Corp., Cleveland, recently previewed a new liquid admixture it claims eliminates the need for air-entrained concrete, a material used in regions exposed to freeze-thaw cycles. Touted as ...

ABSTRACT The air entrainment process of Diesel like gas jet was studied by simultaneous measurements of concentration and velocity fields. A high pressure gas jet was used to simulate Diesel injection ...

SAE Transactions, Vol. 100, Section 3: JOURNAL OF ENGINES (1991), pp. 162-174 (13 pages) The air entrainment in a transient non-evaporating diesel spray was studied using laser Doppler velocimetry, to ...

Although concrete is commonly perceived as a dry and dense substance, it is actually an inherently porous material that more closely resembles a hard sponge. Within concrete’s matrix are microscopic ...

AIR is often entrained naturally by flowing water—for example, in the plunging waters of mountain streams, waterfalls, bores, breakers, hydraulic jumps and subterranean siphons—and, in these and ...

A chilled beam is an air distribution device with an integral coil that may be installed within a space in order to provide sensible cooling and heating. There are two main types of chilled beams: ...