Apparatus for measuring the degree of compaction of a material

Details Apparatus for measuring the degree of compaction of a material Apparatus for measuring the degree of compaction of a material

E - Fixed Constructions

01

C

73/83

E01C 19/29 (2006.01) E01C 19/28 (2006.01) E02D 1/08 (2006.01)

Patent

CA 1230756

ABSTRACT The present invention relates to a measurement device for de- termining the degree of compaction of dam- and road-building material after the material has been compacted with a suitable compaction machine. The measurement device consists of a vibra- ting drum which is equipped with a transducer for generating signals while the drum is being run over the ground surface for which the degree of compaction is to be determined. In order to eliminate factors which impede evaluation of the signals emanat- ing from the signal transducers, the measurement device incorpor- ated in the drum is designed so that its contact surface with the ground surface is as restricted as possible. One method of achieving this is by reducing the width of the drum and/or shap- ing the casing surface of the drum in an arch in a plane paral- lel with the rotary axis of the drum.

480848

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