WO1994010247A1 - Bitumen emulsion, its preparation and use and breaking additive for use therein - Google Patents
Bitumen emulsion, its preparation and use and breaking additive for use therein Download PDFInfo
- Publication number
- WO1994010247A1 WO1994010247A1 PCT/SE1993/000912 SE9300912W WO9410247A1 WO 1994010247 A1 WO1994010247 A1 WO 1994010247A1 SE 9300912 W SE9300912 W SE 9300912W WO 9410247 A1 WO9410247 A1 WO 9410247A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- breaking
- suspension
- oil
- bitumen emulsion
- emulsion
- Prior art date
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
- C08L95/005—Aqueous compositions, e.g. emulsions
Definitions
- Bitumen emulsion its preparation and use and breaking additive for use therein
- the present invention relates to a bitumen emulsion, a pro ⁇ cess for its preparation, a breaking additive intended for use in the bitumen emulsion and the use of the bitumen emul ⁇ sion. More specifically, the present invention relates to a bitumen emulsion of an anionic or cationic type having a breaking additive, a breaking additive intended for use in the bitumen emulsion and the use of the bitumen emulsion as a binder in road building, road maintenance, recycling of old asphalt pavings or construction work.
- bitumen emul ⁇ sions A great number of methods for the breaking of bitumen emul ⁇ sions are known. However, they all suffer from the disadvan ⁇ tage that the breaking occurs immediately. In order to enable the use of bitumen emulsions for e.g. the manufacture of asphalt mixes it will be necessary to achieve a controlled delayed breaking. In this way a very stable bitumen can be used, which gives a good covering of the stone material, which allows mixing and paving as well as compaction without breaking.
- the emulsion should break as fast as possible in order to avoid breakdown of the traffic. Another reason why a rapid breaking is desired is that cold asphalt mix made with emulsion is sensi ⁇ tive to water (i.e. rain) before the emulsion is broken.
- the present invention thus relates to a bitumen emulsion of an anionic or cationic type having a breaking additive, which bitumen emulsion is charac- terized in that the breaking additive has been added to the emulsion in the form of a suspension of a breaking solid in oil.
- the emulsion is of the cationic type, in which case, for instance, the following alkaline materials can be used as breaking chemicals: Calcium hydroxide, calcium oxide, alkali metal tetraborate, alkali metal carbonate, alkali metal etasili- cate, cement (STS cement P) , alkali metal salts of sulphona- ted lignin, magnesium carbonate and magnesium hydroxide.
- alkaline materials can be used as breaking chemicals: Calcium hydroxide, calcium oxide, alkali metal tetraborate, alkali metal carbonate, alkali metal etasili- cate, cement (STS cement P) , alkali metal salts of sulphona- ted lignin, magnesium carbonate and magnesium hydroxide.
- alkali metal as used above is intended to denote sodium and potassium, preferably sodium.
- Examples of a sodium salt of sulphonated lignin is Diwatex 30 from Hol en Kemi.
- the period of delay can be varied to some extent by selectin different oils for the suspension.
- the selection of the oil is of great importance to the stability of the suspension.
- the oils which are used i this connection can be selected from mineral oils, synthetic oils and vegetable oils.
- the principle of allowing the oil film to delay the contact between an emulsion breaking solid and a bitumen emulsion ca also be utilized if an emulsion of the suspension in water is made.
- the suspension of solid in oil is added as an emulsion in water.
- water-soluble salts cannot be used as breaking chemical since these will leach out through the oil film into the continuous aqueous phase.
- this relates to an breaking additive for use in a bitumen emulsion according to the invention, which breaking additive is characterized in that it comprises a suspension of a breaking solid in oil.
- the suspension of solid in oil is emulsified in water.
- the bitumen emulsion according to the present invention is prepared by a process, which is characterized in the following steps a) preparing a suspension of a breaking solid in oil, b) mixing the suspension with a bitumen emulsion of an anionic or cationic type, the suspension optionally being emulsified in water before step b) .
- the invention also relates to the use of a bitumen emulsion according to the invention in road building, road maintenance, recycling of old asphalt pavings or in construc ⁇ tion work such as roofing, coating and water-proofing.
- a bitumen emulsion BE65/5000 (Nynas Bitumen AB) a well-broken emulsion is obtained in which water has separated within 20 hours.
- Run off 0%, Wash off: 0.8%.
- the results can be compared with the case when no breaking suspension is added: Run off: 5%, Wash off: 11%.
- a suspension consisting of 68% of cement in a naphthenic distillate (viscosity 32 mm 2 /s at 40°C) is made by dispersing by means of a high speed mixer of the type Ultraturrax ® .
- the suspension is then emulsified in water.
- the emulsion has the following composition: 47% of cement suspension, 47% of water, 3% of emulsifier Berol 79 and 3% of emulsifier Berol 540 (both emulsifiers from Berol Nobel AB) .
Landscapes
- Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Road Paving Structures (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Colloid Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
A bitumen emulsion of an anionic or cationic type having a breaking additive is disclosed, wherein the breaking additive has been added to the emulsion in the form of a suspension of a breaking solid in oil. The invention also relates to a breaking additive which comprises a suspension of a breaking solid in oil. The emulsion is prepared by preparing a suspension of a breaking solid in oil and then mixing the suspension with a bitumen emulsion of an anionic or cationic type. The bitumen emulsion can be used in road building, road maintenance, recycling of old asphalt pavings and construction work.
Description
Bitumen emulsion its preparation and use and breaking additive for use therein
The present invention relates to a bitumen emulsion, a pro¬ cess for its preparation, a breaking additive intended for use in the bitumen emulsion and the use of the bitumen emul¬ sion. More specifically, the present invention relates to a bitumen emulsion of an anionic or cationic type having a breaking additive, a breaking additive intended for use in the bitumen emulsion and the use of the bitumen emulsion as a binder in road building, road maintenance, recycling of old asphalt pavings or construction work.
A great number of methods for the breaking of bitumen emul¬ sions are known. However, they all suffer from the disadvan¬ tage that the breaking occurs immediately. In order to enable the use of bitumen emulsions for e.g. the manufacture of asphalt mixes it will be necessary to achieve a controlled delayed breaking. In this way a very stable bitumen can be used, which gives a good covering of the stone material, which allows mixing and paving as well as compaction without breaking.
Once the compaction having been carried out, the emulsion should break as fast as possible in order to avoid breakdown of the traffic. Another reason why a rapid breaking is desired is that cold asphalt mix made with emulsion is sensi¬ tive to water (i.e. rain) before the emulsion is broken.
One way to achieve this is disclosed by European Patent Application No 90850415.2. This method utilizes a breaking additive, which comprises a water-in-oil emulsion, in which an aqueous solution of a neutralizing salt is dispersed in a continuous oil phase. Thus this process is based on the use of water-soluble substances in order to achieve the breaking.
It is an object of the present invention to provide a bitume emulsion in which it is possible to use solids instead of aqueous solutions, which solids are known per se to break bitumen emulsions. However, bitumen emulsions will break immediately on the addition of such substances thereto. The problem has been to achieve a delayed breaking in order to permit paving and compaction before solidifying.
According to the present invention it has now been found that this problem can be solved by making a suspension of the solid breaking material as a breaking controlling additive which is mixed into the bitumen emulsion just before the wanted moment of breaking. The oil film then delays the contact between the breaking material and the bitumen emul- sion.
In accordance with the above the present invention thus relates to a bitumen emulsion of an anionic or cationic type having a breaking additive, which bitumen emulsion is charac- terized in that the breaking additive has been added to the emulsion in the form of a suspension of a breaking solid in oil.
According to an embodiment of the invention the emulsion is of the cationic type, in which case, for instance, the following alkaline materials can be used as breaking chemicals: Calcium hydroxide, calcium oxide, alkali metal tetraborate, alkali metal carbonate, alkali metal etasili- cate, cement (STS cement P) , alkali metal salts of sulphona- ted lignin, magnesium carbonate and magnesium hydroxide.
The term "alkali metal" as used above is intended to denote sodium and potassium, preferably sodium. Examples of a sodium salt of sulphonated lignin is Diwatex 30 from Hol en Kemi.
The period of delay can be varied to some extent by selectin different oils for the suspension. The selection of the oil is of great importance to the stability of the suspension. According to the present invention the oils which are used i this connection can be selected from mineral oils, synthetic oils and vegetable oils.
The principle of allowing the oil film to delay the contact between an emulsion breaking solid and a bitumen emulsion ca also be utilized if an emulsion of the suspension in water is made. Hence in accordance with an embodiment of the present invention the suspension of solid in oil is added as an emulsion in water. In this case, however, water-soluble salts cannot be used as breaking chemical since these will leach out through the oil film into the continuous aqueous phase. When such a breaking emulsion is mixed with the bitumen emulsion an immediate breaking is obtained, which is not desirable.
According to another aspect of the invention this relates to an breaking additive for use in a bitumen emulsion according to the invention, which breaking additive is characterized in that it comprises a suspension of a breaking solid in oil.
According to an embodiment of the breaking additive according to the invention the suspension of solid in oil is emulsified in water.
The bitumen emulsion according to the present invention is prepared by a process, which is characterized in the following steps a) preparing a suspension of a breaking solid in oil, b) mixing the suspension with a bitumen emulsion of an anionic or cationic type, the suspension optionally being emulsified in water before step b) .
The invention also relates to the use of a bitumen emulsion according to the invention in road building, road maintenance, recycling of old asphalt pavings or in construc¬ tion work such as roofing, coating and water-proofing.
The invention will be further described in the following by means of a number of working examples.
Example 1
A suspension consisting of 49% of calcium hydroxide in a naphthenic distillate (viscosity at 40°C 32mrrr/s, carbon type analysis CA=30%, CN=30%, Cp=45%) is made by dispersing by means of a high speed mixer of the type Ultraturrax®. When 2% of the above suspension is added to a bitumen emulsion BE65/5000 (Nynas Bitumen AB) a well-broken emulsion is obtained in which water has separated within 20 hours.
In order to further investigate the effect of the breaking additive a so-called run off and wash off test was performed. The test is carried out in the following way: A certain amount of breaking additive is added to a bitumen emulsion. The emulsion is then mixed with stone material which has become moistened with water. The mixture is mixed for 30 seconds and then poured into a funnel having a wire netting at its bottom. Liquid which flows out from the funnel during 30 minutes is collected. The water is evaporated and the residue is reported as "Run off" expressed as percent binding agent calculated on the amount of binding agent added. The mix is left in the funnel for additional 30 minutes, whereafter 200 ml of water is poured over the mass. The water is collected and evaporated. The residue is weighed and reported as "Wash off" in percent of binding agent added.
2% of the suspension above was added to a bitumen emulsion P91-212-01 (Nynas Bitumen AB) . 500 g of stone material (granite from Farsta; composition 52% 4-8 mm, 13% 2-4 mm and
35% 0-2 mm) were moistened with 20 g of water. 40 g of the above emulsion were added thereto. The mixture was poured into a funnel for measuring of "Run off" and "Wash off- according to the above.
Results: Run off: 0%, Wash off: 0.8%. The results can be compared with the case when no breaking suspension is added: Run off: 5%, Wash off: 11%.
Example 2
A suspension consisting of 38% of sodium metasilicate in a naphthenic distillate (viscosity at 40°C 200 mm2/s, carbon type analysis CA=25%, CN=30%, Cp=45%) is made by dispersing by means of a high speed mixer of the type Ultraturrax®.
When 2% of the above suspension are added to a bitumen emul¬ sion BE 65115000 a broken emulsion is obtained, wherein the water has not separated within 24 hours.
2% of the above suspension were added to a bitumen emulsion
P91-212-01 and tests confirming "Run off" and "Wash off" were carried out in the same way as in Example 1.
Results: Run off: 0%, Wash off: 0%.
Example 3
A suspension consisting of 68% of cement in a naphthenic distillate (viscosity 32 mm2/s at 40°C) is made by dispersing by means of a high speed mixer of the type Ultraturrax®. The suspension is then emulsified in water. The emulsion has the following composition: 47% of cement suspension, 47% of water, 3% of emulsifier Berol 79 and 3% of emulsifier Berol 540 (both emulsifiers from Berol Nobel AB) .
3,5% of the emulsion above was added to a bitumen emulsion P91-212-01. 40 g of the mixture were added to 500 g of moist
stone material (as in Examples 1 and 2) . The mixture was stirred for 30 seconds and poured into a funnel to test "Run off" and "Wash off".
Results: Run off: 0%; Wash off: 0.9%.
Claims
1. Bitumen emulsion of an anionic or cationic type having a breaking additive, characterized in that the breaking additive has been added to the emulsion in the form of a suspension of a breaking solid in oil.
2. Bitumen emulsion according to claim 1, characterized in that the emulsion is of the cationic type.
3. Bitumen emulsion according to claim 2, characterized in that the solid phase comprises calcium hydroxide, calcium oxide, alkali metal tetra borate, alkali metal carbonate, alkali metal metasilicate, cement, alkali metal salt of sulphonated lignin, magnesium carbonate or magnesium hydroxide.
4. Bitumen emulsion according to any of claims 1-3, charac¬ terized in that the oil is a mineral oil, a synthetic oil or a vegetable oil.
5. Bitumen emulsion according to any of claims 1-4, charac¬ terized in that the suspension in oil is added as an emulsion in water.
6. Breaking additive for use in a bitumen emulsion according to any of claims 1-5, characterized in that it comprises a suspension of a breaking solid in oil.
7. Breaking additive according to claim 6, characterized in that the suspension of solid in oil is emulsified in water.
8. Process for the preparation of a bitumen emulsion accor- ding to any of claims 1 to 5, characterized a) in preparing a suspension of a breaking solid in oil, b) mixing the suspension with a bitumen emulsion of an anionic or cationic type, the suspension optionally being emulsified in water before step b) .
9. The use of a bitumen emulsion according to any of claims 1-5 in road building, road maintenance or recycling of old asphalt pavings.
10. The use of a bitumen emulsion according to any of claims 1-5 in construction work such as roofing, coating and water-proofing.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK93924866T DK0666886T3 (en) | 1992-11-02 | 1993-11-01 | Bitumen emulsion, preparation and use thereof, and breakage additive for use therein |
| AU54372/94A AU5437294A (en) | 1992-11-02 | 1993-11-01 | Bitumen emulsion, its preparation and use and breaking additive for use therein |
| RU95112461A RU2127288C1 (en) | 1992-11-02 | 1993-11-01 | Bitumen emulsion, preparation thereof and stratifying additive in composition thereof |
| PL93308538A PL177612B1 (en) | 1992-11-02 | 1993-11-01 | Bituminous emulsion, method of obtaining and using same and delaminating additive to such emulsion |
| DE69317295T DE69317295T2 (en) | 1992-11-02 | 1993-11-01 | BITUMEN EMULSION, THEIR PRODUCTION AND APPLICATION AND GAP ADDITIVE FOR APPLICATION HERE |
| SK562-95A SK281010B6 (en) | 1992-11-02 | 1993-11-01 | Bitumen emulsion, its preparation and use |
| EP93924866A EP0666886B1 (en) | 1992-11-02 | 1993-11-01 | Bitumen emulsion, its preparation and use and breaking additive for use therein |
| NO951585A NO307523B1 (en) | 1992-11-02 | 1995-04-26 | Bitumen emulsion, its preparation and use and refractive additive for use therein |
| FI952041A FI112870B (en) | 1992-11-02 | 1995-04-28 | Bitumen emulsion, its preparation and use, and breakdown additive |
| LVP-95-148A LV11477B (en) | 1992-11-02 | 1995-06-02 | Bitumen emulsion, its preparation and use and breaking additive for use therein |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9203228-3 | 1992-11-02 | ||
| SE9203228A SE502009C2 (en) | 1992-11-02 | 1992-11-02 | Bitumen emulsion, its preparation and use, and refractive additives for use therein |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1994010247A1 true WO1994010247A1 (en) | 1994-05-11 |
Family
ID=20387652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/SE1993/000912 WO1994010247A1 (en) | 1992-11-02 | 1993-11-01 | Bitumen emulsion, its preparation and use and breaking additive for use therein |
Country Status (18)
| Country | Link |
|---|---|
| EP (1) | EP0666886B1 (en) |
| CN (1) | CN1058740C (en) |
| AT (1) | ATE163669T1 (en) |
| AU (1) | AU5437294A (en) |
| CZ (1) | CZ287736B6 (en) |
| DE (1) | DE69317295T2 (en) |
| DK (1) | DK0666886T3 (en) |
| ES (1) | ES2113557T3 (en) |
| FI (1) | FI112870B (en) |
| HU (1) | HU214912B (en) |
| LT (1) | LT3057B (en) |
| LV (1) | LV11477B (en) |
| NO (1) | NO307523B1 (en) |
| PL (1) | PL177612B1 (en) |
| RU (1) | RU2127288C1 (en) |
| SE (1) | SE502009C2 (en) |
| SK (1) | SK281010B6 (en) |
| WO (1) | WO1994010247A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2114445A1 (en) * | 1995-07-19 | 1998-05-16 | Ralfer S L | Method and installation for homogenizing bitumen and waste oil |
| WO1999029780A1 (en) * | 1997-12-05 | 1999-06-17 | Aggregate Industries Uk Limited | Remediation of contaminated material |
| WO2001057139A1 (en) * | 2000-02-07 | 2001-08-09 | Tieliikelaitos | Emulsion surfacing mix for paving a road, and a road surfacing made thereof |
| EP1275698A1 (en) * | 2001-07-10 | 2003-01-15 | Appia | Cold-spreadable bitumen aggregate, method and emulsion for its manufacture |
| WO2016005591A1 (en) * | 2014-07-10 | 2016-01-14 | Eurovia | Calcium/magnesium compound slurry for bituminous road material |
| FR3023554A1 (en) * | 2014-07-10 | 2016-01-15 | Eurovia | CALCO-MAGNESIAN COMPOUND MILK FOR BITUMINOUS ROAD MATERIAL |
| BE1021856B1 (en) * | 2014-07-10 | 2016-01-22 | S.A. Lhoist Recherche Et Developpement | CALCO-MAGNESIAN COMPOUND FOR BITUMINOUS ROAD MATERIAL |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106010253B (en) * | 2016-06-24 | 2017-11-14 | 衡水中铁建土工材料制造有限公司 | A kind of double rubber rapid hardening spraying water-repellent paints and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE453760B (en) * | 1987-03-27 | 1988-02-29 | Kenobel Ab | Forming bitumen coating on rod |
| GB2208270A (en) * | 1987-07-24 | 1989-03-22 | Applic Des Derives De L Asphal | Process for breaking an emulsion |
| EP0491107A1 (en) * | 1990-12-19 | 1992-06-24 | Aktiebolaget Nynäs Petroleum | Two-component composition comprising a bitumen emulsion and a breaking additive, process for its preparation and the use of said two-component composition. |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD95072A1 (en) * | 1971-12-16 | 1973-01-12 | ||
| US4148744A (en) * | 1977-03-31 | 1979-04-10 | Phillips Petroleum Company | Carbon black production |
-
1992
- 1992-11-02 SE SE9203228A patent/SE502009C2/en not_active IP Right Cessation
-
1993
- 1993-10-28 LT LTIP1425A patent/LT3057B/en not_active IP Right Cessation
- 1993-11-01 DK DK93924866T patent/DK0666886T3/en active
- 1993-11-01 HU HU9501227A patent/HU214912B/en not_active IP Right Cessation
- 1993-11-01 AU AU54372/94A patent/AU5437294A/en not_active Abandoned
- 1993-11-01 CZ CZ19951107A patent/CZ287736B6/en not_active IP Right Cessation
- 1993-11-01 WO PCT/SE1993/000912 patent/WO1994010247A1/en active IP Right Grant
- 1993-11-01 DE DE69317295T patent/DE69317295T2/en not_active Expired - Lifetime
- 1993-11-01 AT AT93924866T patent/ATE163669T1/en active
- 1993-11-01 RU RU95112461A patent/RU2127288C1/en not_active IP Right Cessation
- 1993-11-01 EP EP93924866A patent/EP0666886B1/en not_active Expired - Lifetime
- 1993-11-01 PL PL93308538A patent/PL177612B1/en not_active IP Right Cessation
- 1993-11-01 ES ES93924866T patent/ES2113557T3/en not_active Expired - Lifetime
- 1993-11-01 SK SK562-95A patent/SK281010B6/en not_active IP Right Cessation
- 1993-11-02 CN CN93119825A patent/CN1058740C/en not_active Expired - Fee Related
-
1995
- 1995-04-26 NO NO951585A patent/NO307523B1/en not_active IP Right Cessation
- 1995-04-28 FI FI952041A patent/FI112870B/en not_active IP Right Cessation
- 1995-06-02 LV LVP-95-148A patent/LV11477B/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE453760B (en) * | 1987-03-27 | 1988-02-29 | Kenobel Ab | Forming bitumen coating on rod |
| GB2208270A (en) * | 1987-07-24 | 1989-03-22 | Applic Des Derives De L Asphal | Process for breaking an emulsion |
| EP0491107A1 (en) * | 1990-12-19 | 1992-06-24 | Aktiebolaget Nynäs Petroleum | Two-component composition comprising a bitumen emulsion and a breaking additive, process for its preparation and the use of said two-component composition. |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2114445A1 (en) * | 1995-07-19 | 1998-05-16 | Ralfer S L | Method and installation for homogenizing bitumen and waste oil |
| WO1999029780A1 (en) * | 1997-12-05 | 1999-06-17 | Aggregate Industries Uk Limited | Remediation of contaminated material |
| WO2001057139A1 (en) * | 2000-02-07 | 2001-08-09 | Tieliikelaitos | Emulsion surfacing mix for paving a road, and a road surfacing made thereof |
| EP1275698A1 (en) * | 2001-07-10 | 2003-01-15 | Appia | Cold-spreadable bitumen aggregate, method and emulsion for its manufacture |
| FR2827317A1 (en) * | 2001-07-10 | 2003-01-17 | Appia | BITUMINOUS COLD COATING, PROCESS AND EMULSION FOR ITS PREPARATION |
| WO2016005591A1 (en) * | 2014-07-10 | 2016-01-14 | Eurovia | Calcium/magnesium compound slurry for bituminous road material |
| FR3023554A1 (en) * | 2014-07-10 | 2016-01-15 | Eurovia | CALCO-MAGNESIAN COMPOUND MILK FOR BITUMINOUS ROAD MATERIAL |
| BE1021856B1 (en) * | 2014-07-10 | 2016-01-22 | S.A. Lhoist Recherche Et Developpement | CALCO-MAGNESIAN COMPOUND FOR BITUMINOUS ROAD MATERIAL |
| US10899929B2 (en) | 2014-07-10 | 2021-01-26 | Lhoist Recherche Et Development | Calcium/magnesium compound slurry for bituminous road material |
| EP3167122B1 (en) | 2014-07-10 | 2022-08-03 | Eurovia SA | Calcium/magnesium compound slurry for bituminous road material |
Also Published As
| Publication number | Publication date |
|---|---|
| NO951585D0 (en) | 1995-04-26 |
| PL308538A1 (en) | 1995-08-21 |
| RU95112461A (en) | 1997-01-10 |
| EP0666886B1 (en) | 1998-03-04 |
| SK56295A3 (en) | 1995-10-11 |
| HU214912B (en) | 1998-07-28 |
| NO951585L (en) | 1995-04-26 |
| ES2113557T3 (en) | 1998-05-01 |
| RU2127288C1 (en) | 1999-03-10 |
| FI952041A0 (en) | 1995-04-28 |
| CZ287736B6 (en) | 2001-01-17 |
| LTIP1425A (en) | 1994-05-15 |
| LT3057B (en) | 1994-10-25 |
| SE9203228D0 (en) | 1992-11-02 |
| DE69317295D1 (en) | 1998-04-09 |
| ATE163669T1 (en) | 1998-03-15 |
| AU5437294A (en) | 1994-05-24 |
| CZ110795A3 (en) | 1995-10-18 |
| DK0666886T3 (en) | 1998-11-30 |
| DE69317295T2 (en) | 1998-06-18 |
| NO307523B1 (en) | 2000-04-17 |
| LV11477A (en) | 1996-08-20 |
| PL177612B1 (en) | 1999-12-31 |
| EP0666886A1 (en) | 1995-08-16 |
| SE502009C2 (en) | 1995-07-10 |
| FI112870B (en) | 2004-01-30 |
| CN1088232A (en) | 1994-06-22 |
| LV11477B (en) | 1997-02-20 |
| CN1058740C (en) | 2000-11-22 |
| SK281010B6 (en) | 2000-10-09 |
| FI952041A (en) | 1995-04-28 |
| SE9203228L (en) | 1994-05-03 |
| HUT70691A (en) | 1995-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR0128735B1 (en) | Method for preparing multigrade asphalt cememt | |
| CA1043509A (en) | Sulfur composition | |
| CA2058006C (en) | Bitumen emulsion, process for its preparation breaking additive for use therein and the use of said bitumen emulsion | |
| GB2255291A (en) | Bitumen emulsions. | |
| US5242492A (en) | Microsurfacing system | |
| CN1856546B (en) | Process for the manufacture of a bitumen-aggregate mix suitable for road pavement | |
| EP0666886B1 (en) | Bitumen emulsion, its preparation and use and breaking additive for use therein | |
| US7041165B2 (en) | Method for making cold-process bituminous mix | |
| US4193816A (en) | Quick-setting bituminous emulsion compositions | |
| NZ504869A (en) | Bituminous emulsions, and their use for the production of materials and of road pavements | |
| US3418249A (en) | Stable asphaltene dispersion-asphalt emulsions and their preparation | |
| US4351750A (en) | Quick-setting bituminous emulsion compositions | |
| SU888825A3 (en) | Method of producing binder for road coating | |
| US2086581A (en) | Method for producing bituminous paving mixtures and product thereof | |
| JP2004143243A (en) | Asphalt emulsion mixture | |
| RU2110496C1 (en) | Method for preparing asphalt-concrete mixture | |
| DK143034B (en) | SURFACE COATING MATERIAL AND PROCEDURE FOR ITS MANUFACTURING | |
| JP2957160B1 (en) | Asphalt emulsion mixture and its construction method | |
| JPS6116296B2 (en) | ||
| US1773000A (en) | Making roads | |
| DE102005004906A1 (en) | Emulsion based mastic asphalt, useful to build e.g. roads and flooring housing and industrial buildings, comprises mixture of mineral materials with filler and binder and is obtained by mixing the mixture with aqueous emulsion of binder | |
| US1985572A (en) | Road building composition and method of preparing same | |
| DE10126249B4 (en) | Bituminous binder for hot-laid ceilings for the production of road surface slabs, as well as hot installation ceilings made from such a binder | |
| RU2071455C1 (en) | Method for production of organomineral mixture | |
| LAVANYA | AN EXPERIMENTAL STUDY ON CATIONIC BITUMEN EMULSION BASED ON COLD MIX TECHNOLOGY |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AT AU BB BG BR BY CA CH CZ DE DK ES FI GB HU JP KP KR KZ LK LU LV MG MN MW NL NO NZ PL PT RO RU SD SE SK UA US UZ VN |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG |
|
| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: PV1995-1107 Country of ref document: CZ Ref document number: 1993924866 Country of ref document: EP Ref document number: 952041 Country of ref document: FI |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 56295 Country of ref document: SK |
|
| WWP | Wipo information: published in national office |
Ref document number: 1993924866 Country of ref document: EP |
|
| REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
| WWP | Wipo information: published in national office |
Ref document number: PV1995-1107 Country of ref document: CZ |
|
| NENP | Non-entry into the national phase |
Ref country code: CA |
|
| WWG | Wipo information: grant in national office |
Ref document number: 1993924866 Country of ref document: EP |
|
| WWG | Wipo information: grant in national office |
Ref document number: PV1995-1107 Country of ref document: CZ |
|
| WWG | Wipo information: grant in national office |
Ref document number: 952041 Country of ref document: FI |