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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Effect of Moisture oin Thermal Conductivity of Limerock Concrete
Author(s): Mack Tyner
Publication: Journal Proceedings
Appears on pages(s): 9-18
Abstract:The coefficient of thermal conductivity k of lime- rock concrete is a function of temperature,’ composi- tion and density of moisture content. No attempt has been made to measure the effect of temperature on k. Holding the temperature reasonably constant the effect of composition on k has been measured for two Ilmerock concrete mixes ( I :5 and I :7 by volume). The I :5 mix has a k that larger than the k for the I :7 mix. is IO percent With the temperature and composition held con- stant, the effect of moisture on k for the I.5 and I :7 mixes has been measured. The moisture content has a profound effect on k, e.g., increases of moisture from 0 to 5 percent increases the k of I :5 mix by 23 percent and from 0 to IO percent increases the k by 46 percent. Concretes should be kept dry if their maximum heat insulation effect is desired.
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