Resumen de Appraisal of density-based field compaction control test validity
For many years, the usual method of soil compaction control has been the compaction test and density measurement. In this research, in order to assess engineering validity of the current control method, the deformability of equally compacted soil specimens were investigated. Fifteen samples of different soils were compacted to 100% according to standard Proctor effort and then consolidated one dimensionally. At each stress level, the odometer moduli of specimens were determined. Results show that under identical stress levels, there are significant differences in the deformability of various soils with equal degree of relative compaction. For stress levels below 400 kPa, 5 to 10 folds differences in moduli were observed. In clayey and sandy specimens, this difference increases to 7 folds. Results prove the necessity of modification of current standards in a way that the modulus and deformation characteristics of such soils are re-evaluated.
