AN ANALYTICAL WEAR MODEL OF THE PIPES FOR CONCRETE TRANSPORTATION

Monica VLASE¹
monica_utcb@yahoo.com

Andrei TUDOR²
tudor@meca.omtr.pub.ro


¹ Technical University of Civil Engineering of Bucharest, ROMANIA
² University POLITEHNICA of Bucharest, ROMANIA

Abstract. The flow of fresh concrete in the pipe can be realized only when the concrete is saturated. The tribological solutions are formulated to obtain the saturation of concrete. The effect of flow in pipe is evaluated by the friction with the wall and the pipe wear. It is defined a critical angle of concrete impact in transition between horizontal and vertical pipe as a function to the friction coefficient, the velocity and the mean radius of solid particle in fresh concrete. The erosion wear model is proposed for inner wall pipe in contact with concrete.
 

Keywords:  fresh concrete friction, erosion, wear model, fatigue

References

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