Void reducing asphalt membrane composition, method and apparatus for asphalt paving applications
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E01C-011/02
C08K-003/00
C08K-003/36
C08K-005/09
E01C-007/18
E01C-007/32
C08L-091/06
C08L-093/00
C08L-095/00
C08L-101/12
E01C-007/30
E01C-011/24
C08K-003/22
출원번호
US-0401995
(2017-01-09)
등록번호
US-9739018
(2017-08-22)
발명자
/ 주소
Kriech, Anthony J.
Wissel, Herbert L.
Reece, Timothy P.
Exline, Marvin Keller
출원인 / 주소
Heritage Research Group
대리인 / 주소
Brinks Gilson & Lione
인용정보
피인용 횟수 :
0인용 특허 :
35
초록▼
A void reducing asphalt membrane composition for asphalt pavements that includes: an asphalt binder; an elastomeric polymer; a wax modifier; and at least one of: i) fumed silica or fumed alumina; and ii) a saponified fatty acid and a resin acid gelling compound. The composition is resistant to flow
A void reducing asphalt membrane composition for asphalt pavements that includes: an asphalt binder; an elastomeric polymer; a wax modifier; and at least one of: i) fumed silica or fumed alumina; and ii) a saponified fatty acid and a resin acid gelling compound. The composition is resistant to flow when applied and migrates into hot mix asphalt in the area of the longitudinal joint to reduce air voids to 7% or less and reduce water permeability. The composition becomes tack-free quickly after application. The composition bonds to asphalt, concrete, brick, stone and metal.
대표청구항▼
1. A longitudinal asphalt pavement construction joint area for construction of pavements that comprises a first substrate that defines a surface to be paved, a hot mix application portion and a void reducing asphalt membrane composition provided between the first substrate and the hot mix applicatio
1. A longitudinal asphalt pavement construction joint area for construction of pavements that comprises a first substrate that defines a surface to be paved, a hot mix application portion and a void reducing asphalt membrane composition provided between the first substrate and the hot mix application, the void reducing asphalt membrane composition comprising: an asphalt binder;an elastomeric polymer;a wax modifier; and at least one of fumed silica and fumed aluminawherein the asphalt binder comprises 85 to 97 wt. % of the void reducing asphalt membrane composition, and wherein the at least one fumed silica and fumed alumina imparts lateral flow resistance and a non-tacky characteristic to the void reducing asphalt membrane composition. 2. A longitudinal asphalt pavement construction joint area for construction of pavements according to claim 1, wherein the void reducing asphalt membrane composition comprises 1-10 wt. % of the at least one of fumed silica and/or fumed alumina. 3. A longitudinal asphalt pavement construction joint area for construction of pavements according to claim 1, wherein the first substrate comprises at least one of asphalt, concrete, brick, stone or metal. 4. A longitudinal asphalt pavement construction joint area for construction of pavements according to claim 1, wherein the hot mix application portion comprises first and second side-by-side adjacent paving passes and the void reducing asphalt membrane composition is provided below the first and second adjacent paving passes in an intended area of the longitudinal asphalt pavement construction joint. 5. A longitudinal asphalt pavement construction joint area for construction of pavements according to claim 1, wherein the void reducing asphalt membrane composition migrates into the hot mix application in the area of the joint portion to reduce air voids and water permeability. 6. A longitudinal asphalt pavement construction joint area for construction of pavements according to claim 5, wherein the air voids are reduced to 7% or lower. 7. A longitudinal asphalt pavement construction joint area for construction of pavements according to claim 1, wherein the void reducing asphalt membrane composition is substantially tack-free to pick-up by construction traffic within about 30 minutes after application. 8. An asphalt pavement void reducing asphalt membrane composition that comprises: an asphalt binder;an elastomeric polymer;a wax modifier; andat least one of fumed silica and fumed alumina,wherein the asphalt binder comprises 85 to 97 wt. % of the void reducing asphalt membrane composition, andwherein the at least one fumed silica and fumed alumina imparts lateral flow resistance and a non-tacky characteristic to the void reducing asphalt membrane composition. 9. An asphalt pavement void reducing membrane composition according to claim 8, further comprising a saponified fatty acid and a resin acid gelling compound. 10. An asphalt pavement void reducing asphalt membrane composition according to claim 8, wherein the at least one of fumed silica and fumed alumina comprises 1-10 wt. % of the void reducing asphalt membrane composition. 11. A method of forming a pavement longitudinal asphalt pavement construction joint which comprises: providing a first substrate that defines a surface to be paved;applying a band of a void reducing asphalt membrane composition on the first substrate, said void reducing asphalt membrane composition comprising: an asphalt binder;an elastomeric polymer;a wax modifier; and at least one of fumed silica and fumed alumina,wherein the asphalt binder comprises 85 to 97 wt. % of the void reducing asphalt membrane composition, andwherein the at least one fumed silica and fumed alumina imparts lateral flow resistance and a non-tacky characteristic to the void reducing asphalt membrane composition; andproviding a hot mix above the band of the void reducing asphalt membrane composition. 12. A method of forming a longitudinal asphalt pavement construction joint according to claim 11, wherein the void reducing asphalt membrane composition further comprises; a saponified fatty acid and a resin acid gelling compound. 13. A method of forming a longitudinal asphalt pavement construction joint according to claim 11, wherein the at least one of fumed silica and fumed alumina comprises 1-10 wt. % of the void reducing asphalt membrane composition. 14. A method of forming a longitudinal asphalt pavement construction joint according to claim 11, wherein the hot mix comprises first and second side-by-side adjacent paving passes and the void reducing asphalt membrane composition is further provided below the first and second paving passes in an intended area of the longitudinal asphalt pavement construction joint where the first and second paving passes are joined. 15. A method of forming a longitudinal asphalt pavement construction joint according to claim 11, wherein the hot mix application comprises first and second side-by-side adjacent paving passes and the void reducing asphalt membrane composition is provided below the first and second side-by-side adjacent paving passes in an intended area of the longitudinal asphalt pavement construction joint where at the first and second paving passes are joined including along a vertical face of the first paving pass. 16. A method of forming a longitudinal asphalt pavement construction joint according to claim 11, wherein the band of void reducing asphalt membrane is applied by spraying. 17. A method of forming a longitudinal asphalt pavement construction joint according to claim 16, wherein the band of void reducing asphalt membrane is applied using a spray application vehicle. 18. A method of forming a longitudinal asphalt pavement construction joint according to claim 11, wherein the band of void reducing asphalt membrane has a width of between about 4 and 24 inches and a thickness of between about 1/16 and 3/8 inches. 19. A method of forming a longitudinal asphalt pavement construction joint according to claim 11, further allowing the void reducing asphalt membrane composition to migrate into the hot mix application portion to reduce air voids and water permeability in the hot mix application in an intended area of the longitudinal asphalt pavement construction joint. 20. A method of forming a longitudinal asphalt pavement construction joint according to claim 19, wherein the air voids are reduced to 7% or lower. 21. A method of forming a longitudinal asphalt pavement construction joint according to claim 11, wherein the first substrate comprises at least one of asphalt, concrete, brick, stone or metal. 22. A void reducing asphalt membrane composition over which a hot mix asphalt is applied during an asphalt paving process which void reducing asphalt membrane composition comprises: an asphalt binder;an elastomeric polymer;a wax modifier; and at least one of fumed silica and fumed alumina,whereby when a hot mix asphalt is applied over the void reducing asphalt membrane the void reducing asphalt membrane composition migrates upward into the hot mix asphalt, and wherein the at least one fumed silica and fumed alumina imparts lateral flow resistance and a non-tacky characteristic to the void reducing asphalt membrane composition to fill air voids and reduces water permeability in the hot mix asphalt. 23. A void reducing asphalt membrane composition according to claim 22, wherein the void reducing asphalt membrane composition comprises 1-10 wt. % of the at least one of fumed silica and fumed alumina. 24. A void reducing asphalt membrane composition according to claim 22, wherein the air voids are reduced to 7% or lower. 25. A void reducing asphalt membrane composition according to claim 23, wherein the void reducing asphalt membrane composition is substantially tack-free to pick-up by construction traffic within about 30 minutes after being applied to a surface to be paved.
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