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picture1_Unit 3


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File: Unit 3
compaction introduction compaction is the process of increasing the bulk density of a soil or aggregate by driving out air for any soil at a given compactive effort the density ...

icon picture PDF Filetype PDF | Posted on 17 Sep 2022 | 4 years ago
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...Compaction introduction is the process of increasing bulk density a soil or aggregate by driving out air for any at given compactive effort obtained depends on moisture content an optimum exists which it will achieve maximum method mechanically densification achieved reducing void space during reduces but not water possible to compact saturated should be noted that higher mass stronger stiffer more durable hence increases strength characteristics load bearing capacity decreases undesirable settlement stability slopes and embankments permeability seepage swelling shrinkage frost damage erosion develops high negative pore pressures suctions effective stress mechanism omc dry particular energy corresponding called mdd added lubricate contact surfaces particles improve compressibility matrix increase in inmost soils up one stage side acts as lubrication beyond thislevel further wet only add there indicates boundary between curve shown figure initial upward trend down ward reasons shape cla...

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