Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Clifton-Highline Canal Experimental Project 1 70-1(14)33
In the spring of 1965 construction was completed on a section of I-25 north of Grand Junction. Mancos clay formations exist quite generally in this area and greatly affect highway pavement performance. Thirty-three test sections were laid out on this project using different types of subgrade treatments. Pavement performance tests have been made quarterly by the Research Unit with soil tests being made by the District and Central Laboratory personnel. Average PSI values ranged from near 4.0 in 1965 to 3.25 in the fall of 1967. Some sections having thick open-graded, granular subbases show a PSI lower than 2.9. The decrease in the PSI has not been attributed to distress in the base or subbase. At this time, the loss in PSI appears to come from a swelling in the subgrade and a small amount of raveling on the surface. (BPR abstract)
Clifton-Highline Canal Experimental Project 1 70-1(14)33
In the spring of 1965 construction was completed on a section of I-25 north of Grand Junction. Mancos clay formations exist quite generally in this area and greatly affect highway pavement performance. Thirty-three test sections were laid out on this project using different types of subgrade treatments. Pavement performance tests have been made quarterly by the Research Unit with soil tests being made by the District and Central Laboratory personnel. Average PSI values ranged from near 4.0 in 1965 to 3.25 in the fall of 1967. Some sections having thick open-graded, granular subbases show a PSI lower than 2.9. The decrease in the PSI has not been attributed to distress in the base or subbase. At this time, the loss in PSI appears to come from a swelling in the subgrade and a small amount of raveling on the surface. (BPR abstract)
Clifton-Highline Canal Experimental Project 1 70-1(14)33
B. A. Brakey (Autor:in)
1968
21 pages
Report
Keine Angabe
Englisch
Case Study: Modernization of the Government Highline Canal
| British Library Conference Proceedings | 1999
Online Contents | 2002
| ASCE | 2019