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.
Aggregates typically make up about 60 to 75 percent of the volume of a concrete mixture, and as they are the least expensive of the materials used in concrete, the economic impact is measurable. In addition, the use of aggregates provides volume stability to the hardened concrete. The shrinkage potential of a cement paste is quite high when compared to the aggregates. Controlling shrinkage of the concrete material is important since shrinkage and cracking potential increase together.