CA2034260A1 - Softening agents for recycling asphalt pavement - Google Patents

Softening agents for recycling asphalt pavement

Info

Publication number
CA2034260A1
CA2034260A1 CA002034260A CA2034260A CA2034260A1 CA 2034260 A1 CA2034260 A1 CA 2034260A1 CA 002034260 A CA002034260 A CA 002034260A CA 2034260 A CA2034260 A CA 2034260A CA 2034260 A1 CA2034260 A1 CA 2034260A1
Authority
CA
Canada
Prior art keywords
asphalt
aged
rejuvenating
asphaltic
agent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002034260A
Other languages
French (fr)
Other versions
CA2034260C (en
Inventor
Henry Sawatzky
Floyd I. Clelland
Brian A. Farnard
Jean Houde Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canada Minister of Energy Mines and Resources
Original Assignee
Canada Minister of Energy Mines and Resources
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canada Minister of Energy Mines and Resources filed Critical Canada Minister of Energy Mines and Resources
Priority to CA002034260A priority Critical patent/CA2034260C/en
Publication of CA2034260A1 publication Critical patent/CA2034260A1/en
Priority to EP93300023A priority patent/EP0558174B1/en
Application granted granted Critical
Publication of CA2034260C publication Critical patent/CA2034260C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Working-Up Tar And Pitch (AREA)

Abstract

Methods and compositions are provided for rejuvenating aged asphaltic paving material, or for improving the compatibility of aged asphalt in salvaged old asphalt paving materials with other asphaltic materials, or of improving the resilience to stripping of rejuvenated asphalt and aggregates, by the use of an agent which was heretofore not known to be a rejuvenating agent. Such rejuvenating agent is a sewage sludge-derived oil, or a fraction thereof, having a particularly recited composition.
This rejuvenating agent markedly lowers the viscosity of the aged asphalt, disperses the components of the aged asphaltic paving material for dispersion of such, or other added asphaltic components in the asphalt, and increases the adhesion of aged asphaltic paving material to aggregates. Such rejuvenating agent may be used together with other conventional rejuvenating agents and/or softening agents, e.g., hydrocarbon products with physical characteristics which are selected to restore aged asphalt to the requirement of current asphalt specifications, for example, soft virgin asphalts.
CA002034260A 1991-01-16 1991-01-16 Softening agents for recycling asphalt pavement Expired - Fee Related CA2034260C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002034260A CA2034260C (en) 1991-01-16 1991-01-16 Softening agents for recycling asphalt pavement
EP93300023A EP0558174B1 (en) 1991-01-16 1993-01-04 New softening agents for recycling asphalt pavement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US64187291A 1991-01-16 1991-01-16
CA002034260A CA2034260C (en) 1991-01-16 1991-01-16 Softening agents for recycling asphalt pavement

Publications (2)

Publication Number Publication Date
CA2034260A1 true CA2034260A1 (en) 1992-07-17
CA2034260C CA2034260C (en) 2002-08-13

Family

ID=25674437

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002034260A Expired - Fee Related CA2034260C (en) 1991-01-16 1991-01-16 Softening agents for recycling asphalt pavement

Country Status (1)

Country Link
CA (1) CA2034260C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800006952A1 (en) * 2018-07-05 2020-01-05 Road surface restoration system of bituminous conglomerate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800006952A1 (en) * 2018-07-05 2020-01-05 Road surface restoration system of bituminous conglomerate

Also Published As

Publication number Publication date
CA2034260C (en) 2002-08-13

Similar Documents

Publication Publication Date Title
US5180428A (en) In situ rejuvenation of aged and cracked asphalt pavement
US4373961A (en) Process and composition for use in recycling of old asphalt pavements
EP1877492B1 (en) Modified asphalt binder material using crosslinked crumb rubber and method of manufacturing a modified asphalt binder
DE69201491T2 (en) Reused rubber in polymer modified asphalt and method of manufacture.
EP0174795B1 (en) Bituminous compositions and preparation thereof
US2509777A (en) Composition of asphalt and a butadiene-acrylonitrile copolymer
US5558704A (en) Paving asphalt concrete composition
US20170107376A1 (en) Modified asphalt binders and compositions
MY119432A (en) Process for preparing bitumen compositions.
US4762565A (en) Open-graded asphalt
DE69306590T2 (en) BITUMINOUS SIMULATED PLASTER SURFACE
US5114483A (en) Open-graded asphalt
DE3880441T2 (en) BITUMEN COMPOSITION.
CA2034260A1 (en) Softening agents for recycling asphalt pavement
DE2826960A1 (en) Antiskid permeable bitumen bound highway surface - including angular gravel aggreage with fibrous fraction and elasticising agent
US11702801B2 (en) Methods and compositions for asphalt rejuvenation
GB2279957A (en) Compositions and surfaces including rubber and glass
ATE292211T1 (en) ASPHALT REGENERATION PRODUCTS SUITABLE FOR USE IN ROAD COATING RECYCLING
PL308538A1 (en) Bituminous emulsion, method of obtaining and using same and delaminating additive to such emulsion
WO1989006259A1 (en) Synthetic paving or coating material
CA2034256A1 (en) Improvers for adhesion of asphalt to aggregates
US3664871A (en) Coating removal method
DE19903314A1 (en) Asphalt composition used for road surfaces
CA2953254C (en) Modified asphalt binders and compositions
ES2116898A1 (en) Bitumen rejuvenator products suitable for use in the recycling of road surfacing

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed