WO1997047688A1 - Materials for repairing and redressing road and footpath surfaces - Google Patents

Materials for repairing and redressing road and footpath surfaces Download PDF

Info

Publication number
WO1997047688A1
WO1997047688A1 PCT/GB1997/001567 GB9701567W WO9747688A1 WO 1997047688 A1 WO1997047688 A1 WO 1997047688A1 GB 9701567 W GB9701567 W GB 9701567W WO 9747688 A1 WO9747688 A1 WO 9747688A1
Authority
WO
WIPO (PCT)
Prior art keywords
composition
fibres
fibrous reinforcement
bitumen
slurry
Prior art date
Application number
PCT/GB1997/001567
Other languages
French (fr)
Inventor
John David Davies
Original Assignee
John David Davies
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 John David Davies filed Critical John David Davies
Priority to GB9900249A priority Critical patent/GB2329898B/en
Publication of WO1997047688A1 publication Critical patent/WO1997047688A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D195/00—Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch
    • C09D195/005—Aqueous compositions, e.g. emulsions
    • 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
    • C08L95/005—Aqueous compositions, e.g. emulsions

Definitions

  • An object of this invention is to improve bitumen based aqueous slurries for use in repairing and redressing roads and footpaths.
  • the fibrous reinforcement is polymer based.
  • Polypropylene fibres have been found to be particularly suitable for use as fibrous reinforcement for compositions of the invention, although other polymer fibres such as polyethylene and nylon may also be suitable.
  • Fibrous reinforcement used in composition of the invention is preferably treated, such as coated, to stop fibres clinging together.
  • the fibrous reinforcement used in compositions of the invention is preferably in the form of fibres of 5 to 55mm in length, preferably of 5 to
  • used in the invention may vary typicallv upwards from 18 micron but is ideally in the range of 350 to 450 micron, especially about 400 micron.
  • compositions according to the invention are based on aqueous bitumen slurry emulsions.
  • emulsions may be polymer modified or may be clear, especially for making up coloured slurry compositions by addition of one or more pigments.
  • compositions of the invention preferably also included in compositions of the invention.
  • Doping agents as sold under the trade names Redicote El l , Stabiram M53, Stabiram 340 and Stabiram 3791 have been found to be particularly suitable for this purpose.
  • the slurry was then ready for application to a road or footpath by any suitable means.
  • the slurry may be hand or machine applied.

Abstract

A bitumen based aqueous slury composition for use in repairing and redressing roads and footpaths contains polypropylene fibres as reinforcement.

Description

TITLE: Materials for repairing and redressing road and footpath surfaces.
DESCRIPTION
This invention concerns materials for repairing and redressing
roads and footpaths.
Bitumen based aqueous slurries are often used for repairing and redressing roads and footpaths. The slurry is applied to the road or footpath surface by hand or by machine and left to set. Because of changes in weather conditions, ie. varying from freezing conditions to hot weather conditions, these bitumen based repairs can themselves crack and become
damaged.
An object of this invention is to improve bitumen based aqueous slurries for use in repairing and redressing roads and footpaths.
According to this invention there is provided a bitumen based aqueous slurry composition for use in repairing and redressing roads and footpaths which contain fibrous reinforcement.
Preferably the fibrous reinforcement is polymer based. Polypropylene fibres have been found to be particularly suitable for use as fibrous reinforcement for compositions of the invention, although other polymer fibres such as polyethylene and nylon may also be suitable. Fibrous reinforcement used in composition of the invention is preferably treated, such as coated, to stop fibres clinging together.
The fibrous reinforcement used in compositions of the invention is preferably in the form of fibres of 5 to 55mm in length, preferably of 5 to
7mm in length, especially about 6mm in length. In some circumstances fibre lengths in the range of 12 to 19mm may be useful. The thickness of fibres
used in the invention may vary typicallv upwards from 18 micron but is ideally in the range of 350 to 450 micron, especially about 400 micron.
Other thicknesses of fibre above and below the ideal range may also be useful in compositions of the invention.
The preferred compositions according to the invention are based on aqueous bitumen slurry emulsions. For some purposes emulsions may be polymer modified or may be clear, especially for making up coloured slurry compositions by addition of one or more pigments.
Other useful ingredients of bitumen slurry compositions of the invention include aggregate. Suitable as aggregate for use in the invention is granite, especially in the form of dust. Basalt and dolomite may also be used as aggregates in the compositions of the invention. A doping agent is
preferably also included in compositions of the invention. Doping agents as sold under the trade names Redicote El l , Stabiram M53, Stabiram 340 and Stabiram 3791 have been found to be particularly suitable for this purpose.
For hand laid slurry compositions of the invention it is advantageous to include a bulking material, especially in the form of fibres, such as sold under the trade name Interfibe.
Compositions of the invention may be made by mixing the ingredients by hand or in a mixing machine. The preferred method is to add to water a doping agent followed by the fibre reinforcement, aggregate and finally aqueous bitumen slurry emulsion. Optional ingredients such as the bulking fibres and Portland cement are preferably added to the mix before the bitumen slurry emulsion.
Compositions of the invention may be applied to a road or footpath in any suitable way. For some situations hand application may be suitable, such as for smaller areas being require, whilst for larger areas machine application may be preferred.
This invention will now be further described by the following Example
Example
A bitumen based aqueous slurry for use in repairing and redressing roads and footpaths was prepared in the following manner in a rotary mixer set at 42 rpm. Three gallons of water were added to the mixer followed by 1 pint of doping agent (Redicote El l). (Stabiram M53, Stabiram 340 and Stabiram 3791 are suitable alternatives). 75g of polypropylene fibres. Fibrin 1 were then added to the mixer to allow for dispersion following by 90Kg of granite aggregate. 172 gallons of bulking fibres (Interfibre XF) were added next together with lOOg of ordinary Portland and cement and the mixture stirred for a few seconds before addition of 6 gallons of K3-60 bitumen based slurry emulsion. The total mixing time from start to finish was about 5 minutes.
The slurry was then ready for application to a road or footpath by any suitable means. The slurry may be hand or machine applied.

Claims

1. A composition comprising a bitumen based aqueous slurry and fibrous reinforcement.
2. A composition as claimed in claim 1 , wherein the fibrous reinforcement is polymer based.
3. A composition as claimed in claim 1 or 2, wherein the fibrous reinforcement comprises polypropylene fibres.
4. A composition as claimed in claim 1 or 2, wherein the fibrous reinforcement comprises polyethylene fibres.
5. A composition as claimed in claim 1 or 2, wherein the fibrous reinforcement comprises nylon fibres.
6. A composition as claimed in any one of claims 1 to 5, wherein the fibrous reinforcement is treated to stop fibres clinging together.
7. A composition as claimed in any one of claims 1 to 6, wherein the fibrous reinforcement is in the form of fibres of 5 to 55mm in length.
8. A composition as claimed in any one of claims 1 to 7, wherein the fibrous reinforcement is in the form of fibres of 5 to 7mm in length.
9. A composition as claimed in claim 8, wherein the fibres are about 6mm in length.
10. A composition as claimed in any one of claims 1 to 7, wherein the fibrous reinforcement is in the form of fibres of 12 to 19mm in length.
11. A composition as claimed in any one of claims 1 to 10, wherein the fibrous reinforcement is in the form of fibres having a thickness of 18 microns upwards.
12. A composition as claimed in any one of claims 1 to 11 , wherein the fibrous reinforcement is in the form of fibres having a thickness in the range of 350 to 450 microns.
13. A composition as claimed in claim 12, wherein the fibres are about 400 microns in thickness.
14. A composition as claimed in any one of claims 1 to 13, wherein the slurry is an aqueous bitumen emulsion.
15. A composition as claimed in claim 14, wherein the emulsion is polymer modified.
16. A composition as claimed in claim 15 further comprising pigment.
17. A composition as claimed in any one of claims 1 to 16 further comprising aggregate.
18. A composition as claimed in claim 17, wherein the aggregate is granite dust.
19. A composition as claimed in claim 17, wherein the aggregate is basalt or dolomite.
20. A composition as claimed in any one of claims 1 to 19 further comprising a doping agent.
21. A composition as claimed in any one of claims 1 to 20 further comprising a bulking agent.
22. A composition as claimed in claim 21 , wherein the bulking agent is in the form of fibres.
23. A method of making a bitumen based aqueous slurry composition comprising adding water to a doping agent followed by fibre reinforcement aggregate and an aqueous bitumen slurry emulsion.
24. A bitumen based aqueous slurry composition substantially as hereinbefore described with reference to the foregoing Example.
25. A method of making a bitumen based aqueous slurry composition substantially as hereinbefore described with reference to the foregoing Example.
PCT/GB1997/001567 1996-06-12 1997-06-11 Materials for repairing and redressing road and footpath surfaces WO1997047688A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9900249A GB2329898B (en) 1996-06-12 1997-06-11 Materials for repairing and redressing road and footpath surfaces

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9612245.2 1996-06-12
GBGB9612245.2A GB9612245D0 (en) 1996-06-12 1996-06-12 Materials for repairing and redressing road and footpath surfaces

Publications (1)

Publication Number Publication Date
WO1997047688A1 true WO1997047688A1 (en) 1997-12-18

Family

ID=10795146

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1997/001567 WO1997047688A1 (en) 1996-06-12 1997-06-11 Materials for repairing and redressing road and footpath surfaces

Country Status (2)

Country Link
GB (2) GB9612245D0 (en)
WO (1) WO1997047688A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104212350A (en) * 2013-12-28 2014-12-17 张文知 Expressway maintenance slurry
CN104212351A (en) * 2013-12-28 2014-12-17 张文知 Expressway paint

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2096622A (en) * 1981-02-20 1982-10-20 Chem Epitoeanyagipari Process for the production of sealing and waterproofing masses based on a bituminous emulsion
GB2200645A (en) * 1987-02-02 1988-08-10 Fibre Dec Ltd Improved material for, and method of, repairing or surfacing roads and the like
EP0344382A1 (en) * 1988-06-02 1989-12-06 Entreprise Jean Lefebvre Cold mix bituminous composition and process for making such a composition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2096622A (en) * 1981-02-20 1982-10-20 Chem Epitoeanyagipari Process for the production of sealing and waterproofing masses based on a bituminous emulsion
GB2200645A (en) * 1987-02-02 1988-08-10 Fibre Dec Ltd Improved material for, and method of, repairing or surfacing roads and the like
EP0344382A1 (en) * 1988-06-02 1989-12-06 Entreprise Jean Lefebvre Cold mix bituminous composition and process for making such a composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104212350A (en) * 2013-12-28 2014-12-17 张文知 Expressway maintenance slurry
CN104212351A (en) * 2013-12-28 2014-12-17 张文知 Expressway paint

Also Published As

Publication number Publication date
GB2329898A (en) 1999-04-07
GB2329898B (en) 2000-07-19
GB9612245D0 (en) 1996-08-14

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