Search results
Results From The WOW.Com Content Network
The main critical issues still concern, for instance, the individuation of accelerated laboratory tests able to characterize concrete performances, reliable corrective factors to be used for the evaluation of long-term durability performances and the validation of these models based on real long-term durability performances.
This kind of concrete is also known as self-repairing concrete. Because concrete has a poor tensile strength compared to other building materials, it often develops cracks in the surface. These cracks reduce the durability of the concrete because they facilitate the flow of liquids and gases that may contain harmful compounds.
Construal level theory (CLT) is a theory in social psychology that describes the relation between psychological distance and the extent to which people's thinking (e.g., about objects and events) is abstract or concrete.
The durability of prestressed concrete is principally determined by the level of corrosion protection provided to any high-strength steel elements within the prestressing tendons. Also critical is the protection afforded to the end-anchorage assemblies of unbonded tendons or cable-stay systems, as the anchorages of both of these are required to ...
Concrete tests can measure the "plastic" (unhydrated) properties of concrete prior to, and during placement. As these properties affect the hardened compressive strength and durability of concrete (resistance to freeze-thaw), the properties of workability (slump/flow), temperature, density and age are monitored to ensure the production and ...
Price, W.F. and Widdows, S.J. Durability of concrete in hot climates: Benefits from permeable formwork, Proceedings of the 3rd International RILEM Symposium on Concrete in Hot Climates, (Ed M J Walker), Torquay, 21–24 September 1992, pp. 207–220.
A forensic pathologist with the city medical examiner's office at the time, Dr. Marlon Osbourne, initially ruled Greenberg's death a homicide, according to court documents.
Several studies have concluded that public concern regarding climate change and environmental issues decreases as one's perceived psychological distance from the issue increases. [6] According to the construal level theory (CLT), psychological distance from an event, issue or object is directly linked to the way that an individual or group of ...