or gueâ¢rilâ¢la. a member of a band of irregular soldiers engaged in guerrilla warfare. guerra war 1)]. , gorilla-Guerrilla is from a Spanish diminutive of guerra, war, and refers to a soldier of an independent armed resistance force; gorilla is the ape.
Efflorescence is a crystalline deposit of water-soluble salts left on the surface of masonry and concrete as the water evaporates. Efflorescence is a partner of Sweating Slab Syndrome. This article is intended to address only efflorescence in concrete floors and more specifically, secondary efflorescence.
The hardening of concrete is a chemical reaction that requires certain conditions and temperatures. Ideally, concrete should be poured when the air temperature is between 50 and 90 degrees Fahrenheit.Cold temperatures slow the concrete-setting process, and when temperatures dip below freezing, the delay allows the water in the mix to freeze before the concrete hardens.This creates cracks in the concrete because water expands as it freezes.old temperatures slow the concrete-setting process, and when temperatures dip below freezing, the delay allows the water in the mix to freeze before the concrete hardens. This creates cracks in the concrete because water expands as it freezes.