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footing bases in sandy soils 2

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1610

1610

Civil/Environmental
Joined
Mar 28, 2000
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3
Location
AU
I am currenly writing a site investigation assigment and I was wondering wether anybody had any recommendations for the preparation of footing bases in sandy soils. Any help would be greatly appreciated.
 
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If the sands are relatively clean (less than 15% fines), I would recommend that you compact the upper 12 inches of bearing soils to 95% ASTM D1557 (Modified Proctor) density. Perform density tests to confirm acceptable compaction. Dewater prior to compacting the soil, if necessary. If the soils possess more than about 15% fines (but less than 25 to 30%), use a Standard Proctor compaction criteria (ASTM D698) instead.
 
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