Publications / 1991 Proceedings of the 8th ISARC, Stuttgart, Germany

Development of an Automatic Laitance Cleaning Machine

Hiromichi Ohta, Sadamichi Ouchi, Kouji Sirai, Mitsuo Sibuya
Pages 589-598 (1991 Proceedings of the 8th ISARC, Stuttgart, Germany, ISSN 2413-5844)

To the rationalization of entire process of construction joint treatment, we developed Automatic Laitance Cleaning Machine. The system consists of travelling green cutting unit, a support unit composed of high pressure pump, and a vacuum pump, and a path guidance system. The travelling unit washes out laitance using a high pressure water jet (maximum 1000kg/cm2) and removes the dust by suction while travelling automatically under control of an optical communication path guidance system. This paper reports its development process, system outline, result of field tests in an actual dam sites.

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