A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Modification of Highway Soil Subgrades
Major study objectives were to develop highway pavement subgrade stabilization guidelines, examine long-term benefits of chemical stabilizers, such as cement, hydrated lime, and two byproducts from industrial processes, and to establish a subgrade stabilization program in Kentucky. In developing a program, a number of design and construction issues had to be resolved. Factors affecting subgrade behavior are examined. Changes in moisture content and CBR strengths of untreated and chemically treated subgrades at three experimental highway routes were monitored over a 7-year period. Guidelines for using geogrids as subgrade reinforcement are presented. Guidelines are also presented for the selection of the design strengths of untreated and treated subgrades with hydrated lime and cement. A laboratory testing procedure for determining the optimum percentage of chemical admixture is described. Correlations of Dynamic Cone Penetrometer and the Clegg Impact Hammer values and in situ CBR strengths and unconfined compressive strengths are presented.
Modification of Highway Soil Subgrades
Major study objectives were to develop highway pavement subgrade stabilization guidelines, examine long-term benefits of chemical stabilizers, such as cement, hydrated lime, and two byproducts from industrial processes, and to establish a subgrade stabilization program in Kentucky. In developing a program, a number of design and construction issues had to be resolved. Factors affecting subgrade behavior are examined. Changes in moisture content and CBR strengths of untreated and chemically treated subgrades at three experimental highway routes were monitored over a 7-year period. Guidelines for using geogrids as subgrade reinforcement are presented. Guidelines are also presented for the selection of the design strengths of untreated and treated subgrades with hydrated lime and cement. A laboratory testing procedure for determining the optimum percentage of chemical admixture is described. Correlations of Dynamic Cone Penetrometer and the Clegg Impact Hammer values and in situ CBR strengths and unconfined compressive strengths are presented.
Modification of Highway Soil Subgrades
T. C. Hopkins (author) / T. L. Beckham (author) / D. Q. Hunsucker (author)
1995
176 pages
Report
No indication
English
Highway Engineering , Construction Equipment, Materials, & Supplies , Solid Wastes Pollution & Control , Transportation , Subgrades , Fly ash , Cements , Lime , Mechanical properties , Chemical properties , Road foundations , Road grades , Roadbeds , Pavement bases , Waste utilization , Byproducts , Case studies , Compressive strength , Stress analysis , Bearing capacity , Shear strength , Moisture content , Soil stabilization , Kiln dust , CBR(California Bearing Ratio)
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