A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Contingency Airfield Construction: Mechanical Stabilization Using Monofilament and Fibrillated Fibers
This report documents a laboratory study that evaluated the effectiveness of mechanically stabilizing low strength soils with monofilament and fibrillated fibers. The study provides guidance on fiber type, length, and dosage rate to produce stabilized soils for contingency airfield construction. This study included a review of available literature and a two-phase laboratory test program. The basis of this study was to determine the feasibility of using fibers to significantly enhance the strength of low-strength soils. The soil materials used in the laboratory study were a high plasticity clay (CH) and a beach sand (SP). Each soil was tested to determine the optimum moisture content, maximum dry density, soaked and as-molded CBR strengths. The clay and sand materials were then stabilized with monofilament and fibrillated fibers at various lengths and dosages. These stabilized materials were then evaluated with the Corps of Engineers Gyratory Testing Machine to determine gyratory shear strength properties. The stabilized soils that indicated an increase in gyratory shear strength were evaluated with the laboratory CBR procedure to determine the soaked and as-molded CBR strength values. The findings of this study indicated that the monofilament fibers can improve strength values of beach sand and the fibrillated fibers can improve the strength values of a high plasticity clay. This laboratory study also indicated that the CBR test may not evaluate the effectiveness of fiber stabilization. Airfield constant, Fiber reinforcement, Gyratory testing machine, CBR tests, Fibrillated fibers, Mechanical stabilization, Contingency pavements, Gyratory shear strength, Monofilament fibers.
Contingency Airfield Construction: Mechanical Stabilization Using Monofilament and Fibrillated Fibers
This report documents a laboratory study that evaluated the effectiveness of mechanically stabilizing low strength soils with monofilament and fibrillated fibers. The study provides guidance on fiber type, length, and dosage rate to produce stabilized soils for contingency airfield construction. This study included a review of available literature and a two-phase laboratory test program. The basis of this study was to determine the feasibility of using fibers to significantly enhance the strength of low-strength soils. The soil materials used in the laboratory study were a high plasticity clay (CH) and a beach sand (SP). Each soil was tested to determine the optimum moisture content, maximum dry density, soaked and as-molded CBR strengths. The clay and sand materials were then stabilized with monofilament and fibrillated fibers at various lengths and dosages. These stabilized materials were then evaluated with the Corps of Engineers Gyratory Testing Machine to determine gyratory shear strength properties. The stabilized soils that indicated an increase in gyratory shear strength were evaluated with the laboratory CBR procedure to determine the soaked and as-molded CBR strength values. The findings of this study indicated that the monofilament fibers can improve strength values of beach sand and the fibrillated fibers can improve the strength values of a high plasticity clay. This laboratory study also indicated that the CBR test may not evaluate the effectiveness of fiber stabilization. Airfield constant, Fiber reinforcement, Gyratory testing machine, CBR tests, Fibrillated fibers, Mechanical stabilization, Contingency pavements, Gyratory shear strength, Monofilament fibers.
Contingency Airfield Construction: Mechanical Stabilization Using Monofilament and Fibrillated Fibers
R. C. Ahlrich (author) / L. E. Tidwell (author)
1994
53 pages
Report
No indication
English
Soil Sciences , Soil & Rock Mechanics , Air Transportation , Composite Materials , Fiber reinforcement , Airports , Soil stabilization , Geotechnical engineering , Beaches , Clay , Construction , Density , Fibers , Laboratory tests , Landing fields , Low strength , Moisture content , Pavements , Plastic properties , Sand , Shear strength , Soils , Stabilization , Test and evaluation , Strength(Mechanics) , Soil structure interactions , Filaments , Monofilaments , Geotextiles
Experimental study of base stabilization with fibrillated fiber
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