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Additional Product Information
Ground Bearing Capacities Of Various Soil Types: Virgin Ground: 22 PSI Asphalt: 29 PSI Compressed crushed stone: 36 PSI Clay/silt soil, firm: 43 PSI Mixed granular soil: 51 PSI Firm compacted gravel: 58 PSI Firm compacted gravel (more compacted): 72 PSI Firm compacted gravel (more compacted, class 5): 109 PSI Brittle weathered rock: 145 PSI Concrete (unknown mix): 1000 PSI
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