Paving method and paving machine

A paving machine comprising a self propelled vehicle including:

• a first hopper and a second hopper for storing paving materials,
• a front spreading screw extending sideways for spreading the paving materials supplied from said first hopper,
• a rear spreading screw extending sideways for spreading the paving materials supplied from said second hopper, wherein the rear spreading screw has a different length from the front spreading screw,
• a screed to lay and pave at the same time the paving materials spread by said front spreading screw and said rear spreading screw, and
• bottom plates attached to the spreading screws for controlling at least either the spreading width or the position of the paving materials.

A paving method in which, as a self propelled vehicle equipped with a screed and hoppers moves forward, paving materials contained in the hoppers are spread onto a road surface and laid and paved by the screed, the method comprising:

• providing each of two or more types of paving materials from said hoppers onto each of a plurality of spreading screws having different lengths and extending along right and left directions with a first one of the spreading screws located behind a second one of the spreading screws with respect to a direction of movement of the self propelled vehicle;
• laying said paving materials onto the road surface by rotating said spreading screws to form three or more strips alternating from right to left in a direction perpendicular to the direction of movement of the self propelled vehicle;
• and
• paving said three or more strips at the same time by the screed.