WO1992010613A1 - Method for removing old asphalt concrete from a road - Google Patents
Method for removing old asphalt concrete from a road Download PDFInfo
- Publication number
- WO1992010613A1 WO1992010613A1 PCT/NL1991/000251 NL9100251W WO9210613A1 WO 1992010613 A1 WO1992010613 A1 WO 1992010613A1 NL 9100251 W NL9100251 W NL 9100251W WO 9210613 A1 WO9210613 A1 WO 9210613A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- asphalt concrete
- layer
- road
- old asphalt
- open
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1004—Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/14—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces for heating or drying foundation, paving, or materials thereon, e.g. paint
Definitions
- the invention relates to a method for removing old asphalt concrete from a road.
- the aim of the invention is to overcome the abovementioned disadvantages and to this end superheated steam is blown on to the old asphalt concrete and the asphalt concrete softened in this way is pushed off and removed using a slide or shovel.
- Softening of old asphalt concrete with the aid of infrared radiators or gas flames is unacceptable in connection with the emission of carcinogenic gases.
- the use of superheated steam surprisingly leads to outstanding results. Softening can be achieved to an extent such that the asphalt concrete can be pushed off and removed without crushing of the stone fraction of the old asphalt concrete and without emission of hazardous gases, the particle size distribution of the stone fraction undergoing no change.
- the superheated steam has a temperature of at least 105°C
- the invention is outstandingly suitable for the removal of a layer of very open asphalt concrete lying on a layer of dense asphalt concrete, the very open asphalt concrete layer being softened by blowing superheated steam on to it and pushed off, while the dense layer of asphalt concrete, which is more difficult to heat, remains behind.
- the --. to 5 cm thick top layer of very open asphalt concrete takes up the heat originating from the superheated steam much more rapidly than the layer of dense asphalt concrete below it.
- the relatively expensive open top layer having a very specific particle size distribution can then also be processed separately to give new very open asphalt concrete. The invention thus makes it possible to remove the open top layer without damaging the dense underlayer.
- An essential feature of the invention is that old asphalt layers can be removed rapidly and effectively without emission of hazardous gases and without stone dust being formed as a result of crushing and with retention of the original particle size distribution, by means of treating with superheated steam and pushing off mechanically using a slide or shovel.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Road Repair (AREA)
- Processing Of Solid Wastes (AREA)
- Disintegrating Or Milling (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92900830A EP0560864B1 (en) | 1990-12-04 | 1991-12-04 | Method for removing old asphalt concrete from a road |
DE69102771T DE69102771T2 (en) | 1990-12-04 | 1991-12-04 | METHOD FOR REMOVING ASPHALT CONCRETE FROM A DRIVEWAY. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL9002659A NL192958C (en) | 1990-12-04 | 1990-12-04 | Method for processing old asphalt concrete into usable new asphalt concrete. |
NL9002659 | 1990-12-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992010613A1 true WO1992010613A1 (en) | 1992-06-25 |
Family
ID=19858087
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL1991/000251 WO1992010613A1 (en) | 1990-12-04 | 1991-12-04 | Method for removing old asphalt concrete from a road |
PCT/NL1991/000249 WO1992010612A1 (en) | 1990-12-04 | 1991-12-04 | Process for converting old asphaltic concrete into usable new asphaltic concrete |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL1991/000249 WO1992010612A1 (en) | 1990-12-04 | 1991-12-04 | Process for converting old asphaltic concrete into usable new asphaltic concrete |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0560864B1 (en) |
DE (1) | DE69102771T2 (en) |
ES (1) | ES2056010T3 (en) |
NL (1) | NL192958C (en) |
WO (2) | WO1992010613A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0704576A1 (en) * | 1994-09-30 | 1996-04-03 | Volker Stevin Materieel B.V. | Asphalt road treatment apparatus |
NL9401612A (en) * | 1994-09-30 | 1996-05-01 | Stevin Volker Materieel Bv | Asphalt road treatment apparatus |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996011242A1 (en) * | 1994-10-07 | 1996-04-18 | Aktiebolaget Nynäs Petroleum | Method of decreasing the fuming tendency of bitumen |
NL9500374A (en) * | 1995-02-24 | 1996-10-01 | Stevin Volker Materieel Bv | Method for heating bitumen-containing material. |
DE59505852D1 (en) * | 1995-10-17 | 1999-06-10 | Gerd Prof Dr Ing Brunner | Method and device for separating bitumen from asphalt |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB292502A (en) * | 1927-06-20 | 1929-12-06 | Provia Soc | Improved process and apparatus for cleaning and heating the surface of roads |
NL7708800A (en) * | 1977-08-10 | 1979-02-13 | Moel Wegenbouwmaatschappij B V | Used asphalted concrete reworking system - heats in vessel and mixes with new asphalt |
US4226552A (en) * | 1978-05-17 | 1980-10-07 | Moench Frank F | Asphaltic pavement treating apparatus and method |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2413908A (en) * | 1942-08-04 | 1947-01-07 | Pavements Reclaiming Corp | Apparatus for conditioning pavement material |
JPS523807B2 (en) * | 1974-03-28 | 1977-01-31 | ||
DE7422578U (en) * | 1974-07-03 | 1974-09-26 | Schoelkopf W | Mobile machine for leveling and removing softenable road surfaces |
US4189238A (en) * | 1975-08-11 | 1980-02-19 | Mendenhall Robert Lamar | Recycled asphalt-aggregate process and apparatus |
US4619550A (en) * | 1984-10-05 | 1986-10-28 | Cd High Technology, Inc. | Microwave method and apparatus for heating loose paving materials |
US4856202A (en) * | 1987-03-20 | 1989-08-15 | Cyclean, Inc. | Method and apparatus for treating asphaltic concrete paving materials |
-
1990
- 1990-12-04 NL NL9002659A patent/NL192958C/en not_active IP Right Cessation
-
1991
- 1991-12-04 DE DE69102771T patent/DE69102771T2/en not_active Expired - Fee Related
- 1991-12-04 EP EP92900830A patent/EP0560864B1/en not_active Expired - Lifetime
- 1991-12-04 WO PCT/NL1991/000251 patent/WO1992010613A1/en active IP Right Grant
- 1991-12-04 WO PCT/NL1991/000249 patent/WO1992010612A1/en active Application Filing
- 1991-12-04 ES ES92900830T patent/ES2056010T3/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB292502A (en) * | 1927-06-20 | 1929-12-06 | Provia Soc | Improved process and apparatus for cleaning and heating the surface of roads |
NL7708800A (en) * | 1977-08-10 | 1979-02-13 | Moel Wegenbouwmaatschappij B V | Used asphalted concrete reworking system - heats in vessel and mixes with new asphalt |
US4226552A (en) * | 1978-05-17 | 1980-10-07 | Moench Frank F | Asphaltic pavement treating apparatus and method |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0704576A1 (en) * | 1994-09-30 | 1996-04-03 | Volker Stevin Materieel B.V. | Asphalt road treatment apparatus |
NL9401612A (en) * | 1994-09-30 | 1996-05-01 | Stevin Volker Materieel Bv | Asphalt road treatment apparatus |
Also Published As
Publication number | Publication date |
---|---|
ES2056010T3 (en) | 1994-09-01 |
WO1992010612A1 (en) | 1992-06-25 |
DE69102771T2 (en) | 1994-11-10 |
NL192958B (en) | 1998-02-02 |
EP0560864A1 (en) | 1993-09-22 |
EP0560864B1 (en) | 1994-07-06 |
DE69102771D1 (en) | 1994-08-11 |
NL9002659A (en) | 1992-07-01 |
NL192958C (en) | 1998-06-03 |
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