Evaluation of Airport Subsurface Materials
EVALUATION
P-210 caliche base course
P-211 lime rock base course
Figure 1. Grain size distribution limits-continue
P-213 sandclay base course
Frost heave - SR97_130016
Table 4. Frost-susceptibility in current FAA specifications
Figure 4. Relationship between frost heave and PI for cohesive soils
Figure 5. Relationship between PI and average rate of heave
Figure 6. Frost heave of eight crushed oolitic limestones
Stabilized materials
Figure 8. Frost heave of hard limestones
igure 9. Gradation curves for soils used in stabilization study of Lambe and Kaplar
Table 9. Effect of portland cement on frost heave
Thaw-weakening
Table 11. Effect of lime on frost heave
Figure 13. Typical k values for base course gradations
Figure 15. Effect of fines on permeability of graded aggregate
Table 13. Estimated k values used in analysis
Figure 16. Effect of fines content on drainage
Table 15. Change in CBR during thaw-weakening period
Figure 20. Grain size distributions of test soils and natural subgrade
CONCLUSION - SR97_130033
RECOMMENDATIONS - SR97_130034
LITERATURE CITED - SR97_130035
Report Documentation Page - SR97_130036
SR97_13
EVALUATION
P-210 caliche base course
P-211 lime rock base course
Figure 1. Grain size distribution limits-continue
P-213 sandclay base course
Frost heave - SR97_130016
Table 4. Frost-susceptibility in current FAA specifications
Figure 4. Relationship between frost heave and PI for cohesive soils
Figure 5. Relationship between PI and average rate of heave
Figure 6. Frost heave of eight crushed oolitic limestones
Stabilized materials
Figure 8. Frost heave of hard limestones
igure 9. Gradation curves for soils used in stabilization study of Lambe and Kaplar
Table 9. Effect of portland cement on frost heave
Thaw-weakening
Table 11. Effect of lime on frost heave
Figure 13. Typical k values for base course gradations
Figure 15. Effect of fines on permeability of graded aggregate
Table 13. Estimated k values used in analysis
Figure 16. Effect of fines content on drainage
Table 15. Change in CBR during thaw-weakening period
Figure 20. Grain size distributions of test soils and natural subgrade
CONCLUSION - SR97_130033
RECOMMENDATIONS - SR97_130034
LITERATURE CITED - SR97_130035
Report Documentation Page - SR97_130036
SR97_13
