Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
151 words
Method for sealing the join between two road parts which are movable relative to each other and are provided with, or are to be provided with, an asphalt road surface, in particular the join between two bridge roadway parts or between a bridge roadway part and a land-abutment part, comprising: - making a recess at the site of the join in at least the hot-rolled asphalt covering said parts, and - placing a material with elastic properties in the recess, characterised in that at least the bottom of the recess is covered with an elastic sealing membrane layer and a hard strip, for example of metal, is placed in said layer above the join, the membrane layer extending over the strip, and in that the recess above the membrane layer is filled with elastic hot-rolled asphalt of which at least the top layer is made of very open-textured elastic hot-rolled asphalt.
Claim 2
Dependent Claim
28 words
Method according to Claim 1, characterised in that the elastic hot-rolled asphalt in the recess has a bottom layer of dense hot-rolled asphalt or a dense join structure.
Claim 3
Dependent Claim
29 words
Method according to Claim 1 or 2, characterised in that the recess is made right into the material of the road parts which are movable relative to each other.
Claim 4
Dependent Claim
27 words
Method according to one of the preceding claims, characterised by securing means projecting into the join to prevent shifting of the hard strip without fixing the strip.
Claim 5
Dependent Claim
36 words
Method according to one of the preceding claims, characterised in that the elastic sealing membrane is composed of a one to thirty millimetre thick layer of a bitumen emulsion or modified bitumen emulsion mixed with stone.
Claim 6
Dependent Claim
34 words
Method according to Claims 1 to 4, characterised in that the elastic sealing membrane is composed of a one to thirty millimetre thick layer of an emulsion based on polyurethane mixed with a stone.
Claim 7
Dependent Claim
34 words
Method according to Claim 5 or 6, characterised in that the elastic sealing membrane is composed of several layers, and little or none of said emulsion is applied in the stones between the layers.
Claim 8
Dependent Claim
23 words
Method according to Claim 7, characterised in that a one to five millimetre thick layer of said emulsion is applied between the layers.
Claim 9
Dependent Claim
20 words
Method according to one of the preceding claims, characterised in that the recess is narrowed stepwise from top to bottom.
Claim 10
Dependent Claim
78 words
Method according to one of the preceding claims, characterised in that the elastic very open-textured hot-rolled asphalt has the following composition: stone chippings: 65-90 mass per cent, particle size 8-16 mm sand: 0-20 mass per cent, granule size 0-3 mm filler: 0-10 mass per cent, size < 63 µm binder: 4-25 mass per cent additions: 0-1 mass per cent, the binder being composed of a mixture of bitumen and a natural rubber or elastomer, or a thermoplastic material.
Claim 11
Dependent Claim
23 words
Method according to Claim 9, characterised in that the binder is composed of a mixture of bitumen and styrene butadiene styrene polymer (SBS).
Claim 12
Dependent Claim
22 words
Method according to Claim 9, characterised in that the binder is composed of a mixture of bitumen and styrene butadiene rubber (SBR).
Claim 13
Dependent Claim
22 words
Method according to Claim 9, characterised in that the binder is composed of a mixture of bitumen with ethyl vinyl acetate (EVA).
Claim 14
Dependent Claim
34 words
Method according to one of Claims 9 - 12, characterised in that the additions are composed of glass fibres and/or mineral fibres and/or rubber particles and/or adhesion improvers and/or latex emulsions and/or bitumen emulsions.