Kokosing Construction Company: Hamm HD 90 Oscillatory roller

Kokosing Construction Company puts the Hamm HD 90 Oscillatory roller through testing on US RT 18 west of Medina, seeing what the roller would do in low mat temperature finish rolling and still get density. The machine was able to obtain density down to a mat temperature of 145 degrees utilizing the oscillatory drum only.

One problem the roller was able to take care of immediately was to eliminate a high longitudinal joint at the left side screed take off spot lateral to a transverse joint by utilizing the oscillatory drum and moving the material away from the joint.

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