Bitumen, especially rubber containing bitumen

Abstract

The present invention relates to the use of materials as fillers or components for bituminous compositions, particularly characterized by particle distribution. These materials are particularly adapted to enhance the bituminous properties. A first aspect of the present invention relates to a bituminous composition, a second aspect relates to the manufacture of such a composition, and a third aspect relates to road paving materials further comprising asphalt and such a bituminous composition.

Claims

1. It is a bituminous material, It contains 1.4 to 3.5 parts by weight of polymer, One first part by weight of the polymer is dissolved and selected in particular from polyisoprene such as rubber, polyethylene, low-density polyethylene, polyethylene terephthalate, ethylene vinyl acetate, and combinations thereof. 0.4 to 2.5 parts by weight of the second portion of the polymer is selected in particular from polyisoprene such as rubber, polyethylene, low-density polyethylene, polyethylene terephthalate, ethylene vinyl acetate, and combinations thereof, and is incorporated into the bituminous material without dissolving. The second part by weight of the polymer is in the form of particles, and in particular, the average particle size of the second part by weight of the polymer is less than 1 mm, particularly 0.05 to 0.6 mm, and more particularly 0.1 to 0.4 mm, and the standard deviation of the particle size of the second part by weight of the polymer is 1 mm. The bituminous material further comprises oil, especially recycled oil, and especially 1 to 2.5 parts by weight of recycled oil.

2. The bituminous material according to claim 1, which contains bituminous having a maximum mass fraction of 0.05 and does not contain tar.

3. The bituminous material according to claim 1 or 2, wherein the polymer is at least partially recycled, for example, 50 to 100% recycled polymer, particularly recycled from tires, from PE, from LDPE, from EVA, from PET, and combinations thereof, and / or 0.5 to 2 parts by weight of the polymer, particularly 0.7 to 1.5 parts by weight, and more particularly 1 to 1.4 parts by weight of the polymer is incorporated into the bituminous material.

4. The bituminous material according to any one of claims 1 to 3, further comprising 10 to 40 parts by weight of fine aggregate, such as sand, and / or 10 to 40 parts by weight of coarse aggregate, particularly selected from stones, such as limestone, basalt, and pebbles.

5. 0.1 to 0.5 parts by weight of at least one resin, and It further comprises 0.05 to 0.3 parts by weight of at least one crosslinking agent, In particular, the at least one resin is a terpene-containing resin, rosin, hydrocarbon resin, for example C ４ -C １２ Resin, preferably C ５ -C １０ resin, more preferably C ６ -C ９ Resin, most preferably C ８ -C ９ A bituminous material according to any one of claims 1 to 4, selected from resins and petroleum-derived resins, particularly recycled resins.

6. The bituminous material according to claim 5, wherein the at least one crosslinking agent is selected from a sulfur-containing compound, sulfur such as nanoparticle sulfur, and isocyanate.

7. The bituminous material according to any one of claims 5 to 6, wherein the recycled oil is selected from papermaking oil, rapeseed oil, aromatic oils such as synthetic or natural aromatic oils, and soybean oil.

8. The bituminous material according to any one of claims 5 to 7, wherein all components of the artificial bituminous material are recycled components, except for the crosslinking agent.

9. Use of a bituminous material according to any one of claims 1 to 8 for replacing a bituminous substrate as at least one of a basic component for building materials and a finished building material.

10. A method for producing a bituminous material according to any one of claims 5 to 8, Using the aforementioned polymer, in particular, the polymer is selected from polyisoprene such as rubber, polyethylene, low-density polyethylene, polyethylene terephthalate, ethylene vinyl acetate, and combinations thereof, and the polymer is in the form of 1 part by weight of particles. In particular, 1 to 2.5 parts by weight of recycled oil is used, and in particular, the recycled oil is selected from papermaking oil, rapeseed oil, aromatic oils such as synthetic or natural aromatic oils, soybean oil, and combinations thereof. The polymer and recycled oil are mixed in a first high-shear mixer at a temperature of 220 to 260°C under first shear conditions for 0.5 to 2 hours, thereby forming a single homogeneous phase containing a polymer substantially completely dissolved in the recycled oil. Further polymers are added to the single homogeneous phase in a second high-shear mixer for 0.5 to 2 hours, wherein the further polymers are selected from polyisoprene such as rubber, polyethylene, low-density polyethylene, polyethylene terephthalate, ethylene vinyl acetate, and combinations thereof, and the further polymers are in the form of particles, particularly 0.4 to 1.4 parts by weight, and the temperature is reduced to 170 to 200°C for 0.5 to 2 hours, wherein the further polymers remain substantially undissolved in the phase, thereby forming a fluid mixture with increased rigidity and high-temperature stability, particularly forming a polymer network structure. A method for producing an artificial bituminous material, comprising adding at least one resin, particularly 0.1 to 0.5 parts by weight of at least one resin, and at least one crosslinking agent, particularly 0.005 to 0.3 parts by weight of at least one crosslinking agent, to the fluid mixture in a third high-shear mixer for 0.5 to 2 hours, and maintaining the temperature at 170 to 200°C for 0.5 to 2 hours.

11. A method for producing an artificial bituminous material according to claim 10, wherein the phase has a viscosity of 0.3 to 4.0 Pa·S at 180°C.

12. A method for producing an artificial bituminous material according to any one of claims 10 to 11, wherein the first high-shear mixer operates at a speed of 400 to 600 rpm, and / or the second high-shear mixer operates at a speed of 400 to 600 rpm, and / or the third high-shear mixer operates at a speed of 400 to 600 rpm.

13. A method for producing a high-content polymer-modified bituminous material (HClMB) according to any one of claims 1 to 4, Using the aforementioned polymer, in particular, the polymer is selected from polyisoprene such as rubber, polyethylene, low-density polyethylene, polyethylene terephthalate, ethylene vinyl acetate, and combinations thereof, and the polymer is in the form of 1 part by weight of particles. In particular, using 1 to 4 parts by weight of bituminous material, The polymer and the bituminous material are mixed at a temperature of 220 to 260°C in a fourth high-shear mixer under fourth shear for 6 to 8 hours, thereby forming a single homogeneous phase containing a polymer substantially completely dissolved in the bituminous material. A method for producing a polymer, comprising adding a further polymer to a fifth high-shear mixer, in particular, the further polymer being selected from polyisoprene such as rubber, polyethylene, low-density polyethylene, polyethylene terephthalate, ethylene vinyl acetate, and combinations thereof, the further polymer being in the form of particles, particularly 0.25 to 3 parts by weight, and reducing the temperature to 170 to 200°C for 0.5 to 2 hours, such that the further polymer remains substantially undissolved in the phase, thereby forming an HClMB.

14. A method for producing a high-content polymer-modified bituminous material according to claim 13, wherein the phase has a viscosity of 0.3 to 4.0 Pa·sec at 180°C.

15. A method for producing a high-content polymer-modified bituminous material according to any one of claims 13 to 14, wherein the fourth high-shear mixer operates at a speed of 3,000 to 9,000 rpm, and / or the fifth high-shear mixer operates at a speed of 3,000 to 9,000 rpm.

16. A product comprising a bituminous material according to any one of claims 1 to 8, wherein the product is selected from road paving materials, roofing boards, waterproofing materials, surface materials, and thermal insulation materials.

17. A road paving material comprising asphalt and a bituminous material according to any one of claims 1 to 8, particularly 5 to 30% by weight of the bituminous material, and 65 to 95% by weight of mineral aggregate.

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