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An ultrathin bonded asphalt surface (UBAS) system and method for resurfacing paved asphalt surfaces, particularly local, collector and residential streets in residential neighborhoods, including cul-de-sacs and roundabouts. The asphalt surface can be prepared with a milling machine. A spray paver applies emulsion bonding liquid (EBL) to the prepared asphalt surface at a predetermined shot rate. Aggregate material is discharged from the spray paver onto the EBL. The system is utilized in performing a UBAS resurfacing method according to the present invention.

Titel:	System and method for modifying and repaving paved surfaces
Autor/in / Beteiligte Person:	McAnany Construction, Inc.
Link:	View record in USPTO Patent Grants (Volltext)
Veröffentlichung:	2022
Medientyp:	Patent
Sonstiges:	Nachgewiesen in: USPTO Patent Grants Sprachen: English Patent Number: 11214,930 Publication Date: January 04, 2022 Appl. No: 16/279774 Application Filed: February 19, 2019 Assignees: McAnany Construction, Inc. (Shawnee, KS, US) Claim: 1. An ultrathin bonded asphalt surface (UBAS) asphalt surface repaving system comprising: a milling machine with a rotating drum configured for milling a layer of existing asphalt material and texturizing said asphalt surface in preparation for application of emulsion bonding liquid (EBL) and hot mix asphalt (HMA) in one pass; a spray paver machine including: front and back ends; opposite sides; a hopper configured for receiving asphalt surface aggregate; an emulsion bonding liquid (EBL) reservoir; an EBL discharge subsystem connected to said EBL reservoir; an aggregate discharge subsystem; and a screed subassembly; said EBL discharge subsystem including: a front, leading EBL spray bar at said spray paver machine front end; a pair of side EBL spray bars each pivotally attached to a respective spray paver machine side and configured for pivotally swinging fore-and-aft relative to said spray paver machine; multiple, selectively variable-output spray nozzles mounted in spaced relation along said leading and side EBL spray bars; said aggregate discharge subsystem including first and second screw augers extending transversely relative to said spray paver machine and configured for discharging aggregate laterally from the sides of said spray paver machine; a controller programmed for applying predetermined quantities-per-area of EBL to said prepared asphalt surface and predetermined quantities-per-area of aggregate to said EBL; said controller is connected to said spray nozzles and is configured for pre-programming with an EBL application pattern which avoids overspray and gaps in said EBL selectively and variably controlling their respective EBL discharges; said controller is configured for controlling the application of said EBL over said pattern; a Global Positioning System (GPS) positioning device connected to said controller; and said controller configured for selectively, individually and variably controlling the output of said spray nozzles based on said spray paver machine location determined by said GPS positioning device. Claim: 2. The UBAS repaving system according to claim 1 wherein said asphalt surface is located within a residential neighborhood. Claim: 3. The UBAS repaving system according to claim 1 wherein said asphalt surface is located in one of a cul-de-sac and a roundabout. Claim: 4. The UBAS repaving system according to claim 1 wherein said rotating drum includes multiple chisels with a transverse spacing in the range of approximately 7-9 mm. Claim: 5. The UBAS repaving system according to claim 1 wherein said EBL is applied with a shot rate in the range of approximately 0.1-0.2 GAL/SY. Claim: 6. The UBAS repaving system according to claim 1 wherein said aggregate-liquid asphalt ratio is in the range of approximately 18.5:1.5 to 19.5:0.5. Claim: 7. A method of repaving an asphalt surface with an ultrathin bonded asphalt surface (UBAS) comprising the steps of: providing a milling machine with a rotating drum configured for milling a layer of existing asphalt material and texturizing said asphalt surface in preparation for application of emulsion bonding liquid (EBL) and hot mix asphalt (HMA) in one pass; providing a spray paver machine including: front and back ends; opposite sides; a hopper configured for receiving asphalt surface aggregate; an emulsion bonding liquid (EBL) reservoir; an EBL discharge subsystem connected to said EBL reservoir; an aggregate discharge subsystem; and a screed subassembly; providing said EBL discharge subsystem with: a front, leading EBL spray bar at said spray paver machine front end; a pair of side EBL spray bars each pivotally attached to a respective spray paver machine side and configured for pivotally swinging fore-and-aft relative to said spray paver machine; providing multiple, selectively variable-output spray nozzles mounted in spaced relation along said leading and side EBL spray bars; said aggregate discharge subsystem including first and second screw augers extending transversely relative to said spray paver machine and configured for discharging aggregate laterally from the sides of said spray paver machine; providing a controller programmed for applying predetermined quantities-per-area of EBL to said prepared asphalt surface and predetermined quantities-per-area of aggregate to said EBL; said controller is connected to said spray nozzles and is configured for pre-programming with an EBL application pattern which avoids overspray and gaps in said EBL selectively and variably controlling their respective EBL discharges; said controller is configured for controlling the application of said EBL over said pattern; providing a Global Positioning System (GPS) positioning device connected to said controller; and said controller configured for selectively, individually and variably controlling the output of said spray nozzles based on said spray paver machine location determined by said GPS positioning device. Patent References Cited: 4124325 November 1978 Cutler ; 5069578 December 1991 Bense ; 5819870 October 1998 Braun ; 6079901 June 2000 Banks ; 6776557 August 2004 Barnat ; 6805516 October 2004 At et al. ; 6830408 December 2004 Blankenship et al. ; 7438764 October 2008 Hill ; 7632038 December 2009 Buschmann et al. ; 7802941 September 2010 Wingo et al. ; 8025459 September 2011 Buschmann ; 8356958 January 2013 Braun et al. ; 8628271 January 2014 Braun ; 9168961 October 2015 Braun ; 9334896 May 2016 Braun ; 10683621 June 2020 Stahl ; 10982097 April 2021 LaRusso ; 2008/0124173 May 2008 Buschmann ; 2009/0285631 November 2009 Buschmann et al. ; 2010/0296868 November 2010 Braun ; 2014/0346841 November 2014 Wachsmann ; 2016/0289902 October 2016 Eul ; 2017/0037585 February 2017 Buschmann ; 2019/0062558 February 2019 LaRusso Primary Examiner: Risic, Abigail A Attorney, Agent or Firm: Law Office of Mark Brown, LLC ; Brown, Mark E.

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System and method for modifying and repaving paved surfaces