(gÉrÄ­l`É) [Span.,=little war], fighting by groups of irregular troops (guerrillas) within areas occupied by the enemy. When guerrillas obey the laws of conventional warfare they are entitled, if captured, to be treated as ordinary prisoners of war; however, they are often executed by their captors.
The Inside Story â Concrete Is Porous. Most people do not realize that concrete is porous â more porous than Swiss cheese! The pores constitute 12 â 18% or more of the concrete but they are invisible, much smaller than the diameter of human hair. After new concrete is poured, almost half of the water has to evaporate.
In order to make claims of it being non-porous and seamless, there needs to be a top-coat on it. But because cementitious urethane flooring is concrete, this topcoat is really the only floor. One would get the same result by putting the top-coat straight on the concrete, and by-passing the cementitious urethane layer.So then it is not much better than just using a coat of paint.n order to make claims of it being non-porous and seamless, there needs to be a top-coat on it. But because cementitious urethane flooring is concrete, this topcoat is really the only floor. One would get the same result by putting the top-coat straight on the concrete, and by-passing the cementitious urethane layer.