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Laboratory Compaction of Soils using a Small Mold Procedure

^a EEA INTA General Villegas, CC 153 (B6230 ZBA), General Villegas, Buenos Aires, Argentina
^b Dep. of Agronomy, Univ. of Kentucky, Lexington, KY 40546-0091
^c Dep. of Geological Sciences, Univ. of Tennessee, Knoxville, TN 37996-1410

View larger version (33K): [in a new window]   Fig. 1. Schematic of the equipment used for the small mold procedure.

View larger version (20K): [in a new window]   Fig. 2. Examples of laboratory soil compaction curves for Proctor and small mold procedures determined at a compactive effort of 540 kJ m-3 (Proctor mold procedure) or 545 kJ m-3 (Small mold procedure). Data are for site C.

View larger version (27K): [in a new window]   Fig. 3. Effect of four compactive efforts (CE, kJ m-3) on the relationships between Maxb or SWCMax values estimated using the standard Proctor test procedure and the small mold technique.

View larger version (16K): [in a new window]   Fig. 4. Effect of clay content on the maximum bulk density (Maxb) parameter determined using the standard Proctor test or the small mold procedure at a compactive effort of 545 kJ m-3 and predicted values from Eq. [4] for two sand contents.

View larger version (19K): [in a new window]   Fig. 5. Effect of clay content on water content at maximum bulk density (SWCMax) parameter determined using the standard Proctor test or the small mold procedure at a compactive effort of 545 kJ m-3 and predicted values from Eq. [5] for the two laboratory compaction procedures.