A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Frost Penetration Beneath Black-Painted Concrete Canal Lining
A field investigation showing the effect of the sun's radiation on soil temperatures beneath unpainted and black-painted concrete lining. During the winter of 1977-78, a test was conducted on a small canal of the Riverton Project in Wyoming to determine the effect of a black-painted concrete lining surface on frost penetration of the soil beneath. Incident solar radiation and reflected radiation from black-painted and unpainted surfaces on sun-exposed and shaded sides of the canal were measured periodically during the winter. Simultaneously, temperatures at the concrete surfaces and at depth intervals in the underlying soil were measured by a thermocouple system to determine frost depths. Also, climatic data affecting solar radiation and frost penetration were collected. The results show that for the sun-exposed sides, frost penetrated 37 percent less beneath the black-painted concrete than beneath unpainted concrete. On the unpainted sides, frost penetration beneath the concrete lining section was 13 percent less on the sun-exposed side than on the shaded side for the first winter of the test and 9 percent less for the succeeding winter.
Frost Penetration Beneath Black-Painted Concrete Canal Lining
A field investigation showing the effect of the sun's radiation on soil temperatures beneath unpainted and black-painted concrete lining. During the winter of 1977-78, a test was conducted on a small canal of the Riverton Project in Wyoming to determine the effect of a black-painted concrete lining surface on frost penetration of the soil beneath. Incident solar radiation and reflected radiation from black-painted and unpainted surfaces on sun-exposed and shaded sides of the canal were measured periodically during the winter. Simultaneously, temperatures at the concrete surfaces and at depth intervals in the underlying soil were measured by a thermocouple system to determine frost depths. Also, climatic data affecting solar radiation and frost penetration were collected. The results show that for the sun-exposed sides, frost penetrated 37 percent less beneath the black-painted concrete than beneath unpainted concrete. On the unpainted sides, frost penetration beneath the concrete lining section was 13 percent less on the sun-exposed side than on the shaded side for the first winter of the test and 9 percent less for the succeeding winter.
Frost Penetration Beneath Black-Painted Concrete Canal Lining
C. W. Jones (author)
1979
39 pages
Report
No indication
English
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