Compaction and Soil Mechanics Aspects of Highway Design

The process of mechanically pressing together the particles of a soil to increase the density (compaction) is extensively employed in the construction of embankments and in strengthening the subgrades of roads and runways.

Many workers in the field talk about consolidating a soil when they really mean compacting it. Strictly speaking, consolidation is the gradual expulsion of water from the voids of a saturated cohesive soil with consequent reduction in volume, whereas compaction is the packing together of soil particles by the expulsion of air.

The densities achieved by compaction are invariably expressed as dry densities, generally in Mg/m3 although, occasionally, the units kg/m3 are used. The moisture content at which maximum dry density is obtained for a given amount of compaction is known as the optimum moisture content.

Project Earth Conservation

Project Earth Conservation

Get All The Support And Guidance You Need To Be A Success At Helping Save The Earth. This Book Is One Of The Most Valuable Resources In The World When It Comes To How To Recycle to Create a Better Future for Our Children.

Get My Free Ebook


Responses

  • grazia
    What is soil mechanic aspect of highway design an compaction?
    1 year ago

Post a comment