Meaning of overcompaction | Babel Free

Definitions

Excessive compaction.

uncountable

Examples

“Some compaction of sand fills, especially in earthquake regions, is essential to prevent⟳ flow⟳ slides (Art. 8-11). On the other hand, there is some question⟳ whether excessive compaction of any type⟳ of fill⟳ is necessary when the underlying soil is comparatively weak. It appears possible that such overcompaction may even be detrimental, since it will provide⟳ a comparatively rigid superstructure which may be overstressed while adapting itself to the deformations of the underlying weaker material.”

“Overcompaction was previously noted for effort D with this soil, but had disappeared after 28 days normal curing (5, conclusion 3).”

“For adequate subgrade design⟳, several basic principles should be followed at all times, including proper compaction of the subgrade, installation of adequate subdrains, and adequate field control⟳. The design⟳ values which are used for the design⟳ of pavements are generally based upon the results of soaked laboratory tests. The tests should be made only after a study⟳ of the moisture-density-strength relationships of the various subgrade soils are determined. Arbitrary selection of standard densities and moisture contents gives results satisfactory for most routine work⟳; however, a careful study⟳ should be made of all the variables affecting the strength of the soil. If the laboratory tests indicate⟳ that the subgrade will lose⟳ strength with increasing densities due to overcompaction, careful consideration should be given to closely controlling the moisture content. It may be necessary to limit⟳ the maximum weight of roller to be used.”

CEFR level