Transcription of 14.330 Soil Compaction - University of Massachusetts Lowell
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14.330 Soil Compaction - University of Massachusetts Lowell
Slide 1 of 38 Revised 02 soil MECHANICSSoil CompactionSOILCOMPACTIONBASICSC ourtesy of Compaction :Densification of soil by the removal of courtesy of soil Compaction : A Basic Handbook by 2 of 38 Revised 02 soil MECHANICSSoil CompactionWHYCOMPACTSOILS?Figure courtesy of soil Compaction : A Basic Handbook by 3 of 38 Revised 02 soil MECHANICSSoil CompactionVolume (V)Weight (W) =Conceptual(Figure FGE (2005))MOISTUNITWEIGHT( ) (w)Silty Clay (LL=37, PI =14) Example(from Johnson and Sallberg 1960, taken from TRB State of the Art Report 8, 1990)Slide 4 of 38 Revised 02 soil MECHANICSSoil CompactionLABORATORYCOMPACTIONTESTS( PROCTORS)Typical proctor Test Equipment(Figure courtesy of )6 inchMold4 inch MoldEjectorModified HammerStandard HammerSoil PlugSoil PlugScaleSlide 5 of 38 Revised 02 soil MECHANICSSoil CompactionTestASTM/AASHTOH ammerWeight (lb)Hammer Drop(in) Compaction Effort(kip-ft/ft3)
Soil Compaction: Densification of soil by the removal of air. ... Typical Proctor Test Equipment (Figure courtesy of test-llc.com) 6 inch Mold 4 inch Mold Ejector Modified Hammer ... Test STANDARD ASTM D698/AASHTO T-99 MODIFIED ASTM D1557/AASHTO T-180 Method A B C A B C Material ≤ 20%
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