Method and vehicle for pavement surface dressing
AssigneeSecmair
InventorPierre Chambard
Life of this patent
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Abstract
According to the invention, the surface is dressed by synchronous spreading of binder and gravel on the pavement as follows: a) a first layer of hot bitumen (b1) having a temperature greater than 100° C. is spread on the pavement (S): b) a film of hot water (e) is spread on top of said first layer, c) a second layer of hot bitumen (b2) having a temperature greater than 100° C. is spread on top of said film of hot water; d) a layer of gravel c) is spread on top of all of the above. Pavement dressing.
Claims5
Method for applying a surface coating by the synchronous spreading of bonding agent and chippings onto a roadway, the method comprising:
- a) a first layer of hot bitumen (b1), at a temperature above 100° C., is spread onto the roadway (S);
- b) depositing a film of hot water onto the first layer of hot bitumen;
- c) spreading a second layer of hot bitumen, at a temperature above 100° C., onto the film of hot water;
- d) spreading a layer of chippings (c), over the layers of bitumen and water.
Vehicle for applying a surface coating by synchronous spreading of bonding agent and chippings onto a roadway, with the chassis (41) bearing a hot bitumen tank (6) and a tipper (7) containing chippings (c), this vehicle being fitted with a first boom (1) for dispensing hot bitumen (b1), which in placed in front—considering the forward operational movement (F) of the vehicle (4)—of a chipping spreader device (70), characterised in that the chassis (41) additionally bears a hot water tank (5), the vehicle being fitted with a second boom (3) for dispensing hot bitumen (b2), also placed in front of said chipping spreader device (70), and with a hot water (a) spray boom (2) placed between the two bitumen dispensing booms (1;
- 3).
Dependencies are inferred from the claim text.