A new traveling sand pluviator to reconstitute small specimens for laboratory tests was developed in joint research between the Research Center of the Italian National Electricity Board (ENEL CRIS) of Milano and the Department of Structural Engineering of the Politecnico di Torino. The pluviator proved satisfactory in reconstituting small-size specimens because it provided a very high degree of spatial uniformity of density and grain-size distribution. Furthermore, it was shown that a traveling pluviator is preferable to a stationary one even in reconstituting large-size specimens to achieve a higher degree of spatial uniformity. The above advantages were mainly evident when dealing with well-graded silty sands. A noteworthy feature of the new traveling pluviator that sets it apart from existing ones is its ability to accommodate pluviation under evacuated conditions.
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Presti et al. (1993) studied this question.
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