Arabic Meaning: The name Leyla is an Arabic baby name. In Arabic the meaning of the name Leyla is: Born at night. Persian Meaning: The name Leyla is a Persian baby name. In Persian the meaning of the name Leyla is: Born at night. SoulUrge Number: 6. Expression Number: 1. People with this name have a deep inner desire for a stable, loving family or community, and a need to work with others and to be appreciated.
Shrinkage. Definition: decrease in either length or volume of a material resulting from changes in moisture content or chemical changes.- ACI Concrete Terminology. Drying shrinkage is the contraction in the concrete caused by moisture loss from drying concrete. Shrinkage-compensating concrete is used to minimize cracking and structural movement caused by drying shrinkage in concrete. The amount of drying shrinkage that occurs in concrete structures depends on the constituent materials, mixture proportions, curing, drying environment, and restraint.
Why does concrete flake, spall and crack? Why does concrete flake and spall? In areas of the country that are subjected to freezing and thawing the concrete should be air-entrained to resist flaking and scaling of the surface. If air-entrained concrete is not used, there will be subsequent damage to the surface. The water/cement ratio should be as low as possible to improve durability of the surface. Too much water in the mix will produce a weaker, less durable concrete that will contribute to early flaking and spalling of the surface.