Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
This report describes the experimental use of All-Weather Crete HI-45 expanded perlite-asphalt hot mix insulating sub-base to control frost penetration of the subgrade in a full scale highway construction project over a period of five years. Conclusions and recommendations concerning use of the material in highway construction and highway maintenance are presented. The first half of the study, was published in an interim report in October 1973. Field data for the second half covering the last three years of the study, is included in this report. The final results of the study indicated that four inches of AWC (24 pcf density) subbase under a 10-inch PCC pavement, was effective in preventing penetration of freezing subsurface temperatures and frost action in the subgrade in northern Illinois. Other thicknesses and compaction densities of AWC tried in this study were ineffective when the freezing index in the area was over 600 degree-days.
This report describes the experimental use of All-Weather Crete HI-45 expanded perlite-asphalt hot mix insulating sub-base to control frost penetration of the subgrade in a full scale highway construction project over a period of five years. Conclusions and recommendations concerning use of the material in highway construction and highway maintenance are presented. The first half of the study, was published in an interim report in October 1973. Field data for the second half covering the last three years of the study, is included in this report. The final results of the study indicated that four inches of AWC (24 pcf density) subbase under a 10-inch PCC pavement, was effective in preventing penetration of freezing subsurface temperatures and frost action in the subgrade in northern Illinois. Other thicknesses and compaction densities of AWC tried in this study were ineffective when the freezing index in the area was over 600 degree-days.
Highway Insulating Material Evaluation
I. Mascunana (Autor:in)
1976
33 pages
Report
Keine Angabe
Englisch
INSULATING MATERIAL AND EQUIPMENT USING INSULATING MATERIAL
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