To solve the following problem that, in a conventional paving machine using a measuring plate, when a bar moves on the measuring surface of the measuring plate, a load applied to the measuring plate fluctuates due to the thickness of a paving material infiltrating into a gap between the bar and the measuring plate, thus resulting in the inability of the correct measurement of the weight of the paving material.

When a paving material 60 supplied to a bottom plate 40 is conveyed from one end of a conveyor 50 to the conveying surface 50a of the conveyor 50, the conveying surface 50a of the conveyor 50 moves together with the bar 45 at the same speed and in the same direction A, and therefore, during the conveyance of the paving material 60 by the conveying surface 50a, the paving material 60 does not infiltrate a gap between the bar 45 and the conveying surface 50a, and therefore, a state that the paving material does not infiltrate the gap is ensured. Therefore when the bar 45 passes the conveyor 50, the load applied from the bar 45 to the conveying surface 50a of the conveyor 50 is kept at a constant value without fluctuation. As a result, the weight of the paving material 60 can be correctly measured by a load cell 56.