A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A Field Experiment of Asphalt-Treated Bases in Colorado
The paper covers the initial phase of the research study entitled 'Evaluation of Experimental Projects - Crowley-Ordway.' It includes a description of the experimental pavement and results of the first year's testing program. The purposes of the study are to evaluate the thickness requirements for several different asphalt-treated bases and to compare their performance to other bases constructed both at the test site and at the AASHO Road Test. The paper describes (a) the experiment design (b) construction and material tests (c) instrumentation and measurements (d) pavement performance (e) field and theoretical load-response characteristics (f) determination of the modulus of elasticity of the pavement system layers and (g) the influence of thickness on deflection and curvature. The experiment consists of twenty 550-foot long test sections constructed in 1965 near Pueblo, Colorado. It includes two complete interrelated factorial experiments. Laboratory tests were conducted on samples of the various pavement system layers. Temperatures were obtained from thermocouple installations at various depths in the pavement structure. Benkelman beam and Dehlen curvature meter measurements were made. As-built surface course and base thicknesses were measured. Present serviceability index values (PSI) were determined for each section from both CHLOE profilometer and BRP roughometer measurements. (Author)
A Field Experiment of Asphalt-Treated Bases in Colorado
The paper covers the initial phase of the research study entitled 'Evaluation of Experimental Projects - Crowley-Ordway.' It includes a description of the experimental pavement and results of the first year's testing program. The purposes of the study are to evaluate the thickness requirements for several different asphalt-treated bases and to compare their performance to other bases constructed both at the test site and at the AASHO Road Test. The paper describes (a) the experiment design (b) construction and material tests (c) instrumentation and measurements (d) pavement performance (e) field and theoretical load-response characteristics (f) determination of the modulus of elasticity of the pavement system layers and (g) the influence of thickness on deflection and curvature. The experiment consists of twenty 550-foot long test sections constructed in 1965 near Pueblo, Colorado. It includes two complete interrelated factorial experiments. Laboratory tests were conducted on samples of the various pavement system layers. Temperatures were obtained from thermocouple installations at various depths in the pavement structure. Benkelman beam and Dehlen curvature meter measurements were made. As-built surface course and base thicknesses were measured. Present serviceability index values (PSI) were determined for each section from both CHLOE profilometer and BRP roughometer measurements. (Author)
A Field Experiment of Asphalt-Treated Bases in Colorado
R. I. Kingham (author) / T. C. Reseigh (author)
1967
50 pages
Report
No indication
English
Miscellaneous Materials , Civil Engineering , Asphalt , Pavements , Design , Elasticity , Concrete , Reinforcing materials , Curved profiles , Thermocouples , Sand , Thickness , Tests , Colorado
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