JPH05117657A - Binding agent composition, preparation thereof, and road surface material containing same - Google Patents

Abstract

PURPOSE: To provide a binder compsn. containing an aq. emulsion of at least one hydrocarbon binder and at least one hydraulic binder, and a process for producing the same.

CONSTITUTION: At least one auxiliary agent for controlling the curing speed of a hydraulic binder to form a liquid product having the viscosity of below 1 Pas is further added to the binder compsn. and, further, at least one filler, for example, an inorg. filler, an org. filler or a metal filler can be added thereto. As an example of a hydrocarbon binder, there are pure bitumen, regenerated bitumen, a paraffinic, naphthenic or aromatic petroleum type solvent, petroleum type compd. formed from a steam cracking distillate, pure tar, coal liquefied oil, heavy oil, soft pitch and special pitch; and, as an example of the hydraulic binder, there are cement and lime-containing slag cement and, as an example of the auxiliary agent, there are a curing retarder, a curing accelerator, a thinner, a plasticizer, a suppressor, a thixotropic agent and an org. polymer.

COPYRIGHT: (C)1993,JPO

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a binder composition, a method for producing the same, and a road surface material containing the same. In the present invention, a binder composition comprises at least one inorganic substance which hardens as a result of a hydration reaction in the presence of at least one specific auxiliary agent and at least one hydrocarbon substance. A homogeneous product. In some applications, the binder composition of the present invention is loaded with an inorganic metal or organic filler.

[0002]

BACKGROUND OF THE INVENTION The use of cement and mixed lime, which are hydraulic binders, in combination with natural material soils has been extremely successful in improving soil buoyancy and increasing fill strength. Known over time. Over the decades, a systematic study of the properties of such hydraulic binders has been carried out, which results in the need for enabling the use of such binders in the construction of modern road structures. You can now specify the conditions.

The course thus bonded has a high rigidity independent of temperature and forms a material which guarantees a good load distribution, its rigidity modulus being
s) is 15,000 MPa or more. On the other hand, this material has some noticeable drawbacks. This material is brittle due to its high stiffness, so that it cracks, for example during a slight movement of the soil, and small relative deformations of 20-60 × 10 ⁻⁶ are observed. The upper part of this layer is of low strength, resulting in the need for a thick facing layer when traffic is average or heavy. Shrinkage cracks due to hardening or heat are always observed in such layers. Finally, constructs using such materials should gradually develop strength (p
rogressive development) is not possible, and as a result the above mentioned layers cannot be adapted to the traffic volume.

Techniques based on bitumen emulsions have been developed for decades at the same time as hydraulic sand-jaw mixes, and the most highly developed form of this emulsion is "emulsion-sand-jali". It is called "mix". Materials treated with hydrocarbon-based binders have advantages in several areas. This material is deformable under mild stress and the relative deformation is 90-150x at 10 ° C.
It is 10 ^-6 . Furthermore, this material has a good surface strength, which allows the surface layer to be thin. Finally,
This material can gradually develop the strength of the structure containing it. On the other hand, this material has a drawback that it has low rigidity, and the torsional rigidity at 15 ° C. is 1000 to
It is usually 5000 MPa, in particular 2000-3500 MPa.

Therefore, in the past, one was forced to choose between two cold technologies, which had some advantages but at the same time some specific drawbacks. In the past,
In fact, one is hydraulic and the other is hydrocarbon-based 2
Attempts have been made to use different binders, but each of these binders has been separately incorporated into the mineral framework. As far as the compatibility of these binders is concerned, such application techniques are not without the risk that the action of these binders may be disturbed in some cases.

As far as is known in the art, there is no known liquid binder composition having a phase in which the aqueous emulsion of hydrocarbon binder and the hydraulic binder are completely homogeneous. French patent application FR-A 45074 discloses a ready-to-use self-hardening composition which comprises an emulsion of bitumen suspended in water and a cement fluid-mineral oil. It consists of a mixture. French patent application (FR-A) 16023 discloses a binder composition consisting of a hydrocarbon product as a dispersion medium and a cement dispersed in water. This product is not homogeneous enough and is therefore not entirely satisfactory.

[0007]

Accordingly, there is a need for a uniform liquid binder composition that can be stored and used later. A first object of the present invention is to provide a binder composition that meets the above needs. A second object of the present invention is to provide a method of making a binder composition that meets the above needs. A third object of the present invention is to provide a road surface material containing a binder composition satisfying the above-mentioned needs.

The binder composition of the present invention can be uniformly blended. Since the composition of the present invention has high homogeneity, it is easy to apply. The composition of the invention in liquid form ensures extremely easy use. As is well known in the art, it is difficult to thoroughly mix products with completely different properties.

The present invention fulfills the above needs because it allows the production of homogeneous binder compositions and that treatment with the binder compositions of the present invention results in materials having many advantages. The rigidity obtained with a hydraulic binder ensures a good filler distribution and the torsional rigidity changes with temperature.
The deformation capacity under cyclic loading is greater than the material treated with hydraulic binder. No or very few cracks due to curing or heat shrinkage. As far as the formulation of the binder in the material to be treated is concerned, there are two advantages: The first advantage is qualitative and is a dry powder since the hydraulic part of the binder is in the form of an aqueous dispersion. The second advantage is that the distribution of the hydraulic part is better than that of the case where it is introduced in the form of, and the second advantage is quantitative, and when the liquid is measured, the powder is continuously blended by weight. It is easier and more reliable than in the case.

[0010]

The aqueous emulsions used in this invention must be properly compounded to be compatible with the hydraulic binder. In particular, the hydraulic binder should not agglomerate and should not cure rapidly. Further, in the present invention, an appropriate surfactant is selected and an appropriate component ratio is selected.

A first object of the invention is a binder composition containing an aqueous emulsion of at least one hydrocarbon-based binder and at least one hydraulic binder, the binder composition being A binder composition, characterized in that it further comprises at least one auxiliary agent for controlling the curing rate of said hydraulic binder to produce a liquid product having a viscosity of less than 1 Pas. Achieved by

A second object of the present invention is to prepare a binder composition by: a) introducing at least one surfactant into water at a temperature of about 10 ° C to about 80 ° C; Both contain about 1 type of hydrocarbon binder in a separate container.
Heating to a temperature of 00 to 200 ° C., c) mixing the surfactant and the hydrocarbon binder to form an aqueous emulsion, d) introducing the aqueous emulsion into a homogenizer, Introduce a hydraulic binder separately into this homogenizer, e) Introduce an auxiliary agent at any stage to control the curing rate of said hydraulic binder, f) If necessary, before mixing in said homogenizer Alternatively, at a later time, at least one filler is added and g) the final product is stored for later use.

The third object of the present invention is achieved by a road surface material containing the binder composition.

The binder composition of the present invention further has the following characteristics: the auxiliary is selected from the group consisting of setting retarders, setting accelerators, thinners, plasticizers, thixotropic agents and organic polymers. The auxiliary agent is a gluconate; the binder composition further contains at least one inorganic filler; the binder composition further comprises at least one organic filler; -The binder composition further comprises at least one metal filler; -the inorganic filler is siliceous powder, limestone powder, natural fiber,
Man-made fibers, or mixtures of any two or more of these; organic fillers being vegetable fibers, synthetic fibers such as polyamide, polyvinyl chloride, polyester, polyethylene, polypropylene or mixtures of any two or more thereof. -The metal filler comprises aluminum powder, iron powder, copper alloy powder or a mixture of any two or more thereof; -the binder composition comprises about 3 parts per 100 parts hydraulic binder.
0-300 parts hydrocarbon binder aqueous emulsion, about 0.2
˜1 part auxiliary agent, 0-1 part inorganic filler, and 0-1
Contains 5 parts metal filler.

The process according to the invention further has the following characteristics: -adding the auxiliaries directly to the aqueous emulsion of said hydrocarbon-based binder: -auxiliaries of said hydrocarbon-based binder in said homogenizer The aqueous emulsion and the hydraulic binder are added after mixing; the hydrocarbon binder is a pure bitumen, regenerated bitumen, paraffinic, naphthenic or aromatic petroleum solvent, steam cracking distillate. Selected from the group consisting of petroleum-based compounds generated from, pure tar, coal liquefied oil, heavy oil, soft pitch and special pitch; the hydraulic binder is cement or lime-containing slag cement, and water is added to it as required. Added.

In the hydraulic binder used in the present invention,
The ratio of added water: water is in the range of 0 to 50 parts of water per 100 parts of cement. It is quite obvious to add sufficient water, if necessary, to produce a liquid product.
When an aqueous emulsion of hydrocarbon binder is obtained in the homogenizer, the ratio of hydrocarbon binder: aqueous phase is 30: 7.
A ratio of 0 to 75:25 is obviously appropriate. The ratio of hydrocarbon binder to aqueous phase is usually 60:40.

The aqueous emulsion temperature can range from 5 to 70 ° C and the cement temperature can range from 5 to 50 ° C. Obviously, it all depends on the weather conditions in use. The binder composition of the present invention does not cure over time. Thus, the composition of the present invention can be stored and used later.

The binder composition of the present invention contains, before use, the substances described in the following [1], [2], [3], [4] and [5] as a mixture: [1] Aqueous milk One or more hydrocarbon substances in the form of a suspension. As these hydrocarbon substances, one or both of those obtained from distillation of crude oil and those produced from derivatives obtained from the coal industry can be used.

If hydrocarbons from petroleum sources are used, the following substances are used: -pure bitumen such as that specified in French Standard T65-001; -specified in French Standards Bitumen, which has not yet been produced by refineries to meet certain criteria and applications, includes, for example, a solvent-extracted fraction of base oil obtained by deasphalting with propane. There are several types of so-called "regenerated" bitumens obtained by mixing and softening. The main feature of such mixtures is the low asphalt content,
High aromatics content; -paraffinic, naphthenic or aromatic petroleum solvent; -steam cracking distillate, bottom of distillation column for distilling condensate recovered from natural gas, or others Petroleum-based compounds obtained from the petrochemical treatment process of.

In the case of hydrocarbons from coal sources, it is possible to use the following substances: -pure tars such as the tars specified in French Standard T65-021; -primary distilled oils; Coal liquefied oil produced from a mixture with a fraction corresponding to a fraction having the characteristics of: heavy oil called "creosote" can be included in this product series; -pure tar and coal plasticized oil ( coal plasticizing oil)
A specific soft pitch obtained by mixing with;

[2] One or more hydraulic binders. As such a binder, French standard NF P15-3
Cement, such as that defined by No. 01, and / or other hydraulic binders, for example slagments containing lime (French standard NF P15
-306) and natural cement (French standard N)
FP15-308);

[3] One or more auxiliaries for contributing a specific property or characteristic. If it is desired to modify the hydrocarbon material, an organic polymer may be used, which is introduced into the base hydrocarbon material prior to emulsification, or the base material. Is introduced into the aqueous phase of the hydrocarbon emulsion or is introduced into the finished emulsion, after which the hydrocarbon emulsion is mixed with a hydraulic binder. If it is desired to change the behavior of the hydraulic part, set retarders, set accelerators, thinners, plasticizers, inhibitors and other similar substances are used. When it is desired to change the properties of the binder composition of the present invention,
At least one substance is used to influence the rheological properties of the combined components. For example, a thixotropic agent is used in this particular example.

[4] Inorganic filler (silicic powder and / or
Or lime powder, natural fibers such as rock fibers, or artificial fibers such as glass fibers), or organic fibers belonging to plant fibers, synthetic fibers such as polyamide, polyvinyl chloride, polyester, polyethylene or polypropylene.

[5] Metal fillers, examples of which include aluminum powder, iron powder, and copper alloy powder. In the binder composition of the present invention, the hydrocarbon binder emulsion is lipophilic /
Hydrophilic type direct emulsions or, in some cases, hydrophilic / lipophilic / hydrophilic type multi-emulsions. It is also possible to use microemulsions.
Depending on the nature of the surfactant used to provide the required stability to the hydrocarbon material dispersed in the aqueous phase, it is possible to use an anionic or cationic surfactant as the surfactant. it can. However, the choice of surfactants is not limited to the two types mentioned above, and in fact amphoteric or nonionic surfactants can also be used. Of the many surfactants that can be used, by way of example, in the case of cationic surfactants, quaternary ammonium salts, in the case of amphoteric surfactants, potassium salts of proteins of animal or plant origin, and finally In the case of nonionic surfactants, mention may be made of polyethoxylated alkylphenols. The various substances mentioned above are given as examples and are not limited to these substances.

[0025]

EXAMPLES Next, examples of the present invention will be described. However, the present invention is not limited to these examples. In the examples, the amounts expressed in parts are per 1000 parts of total binder composition. Example 1 219.2 parts of naphthenic bitumen having a penetration depth of 60 to 100 × 1/10 mm (measured in accordance with French standard NF T66-004) was heated to about 140 ° C. Separately,
To an aqueous solution obtained by reacting 4.6 parts of casein with 0.8 parts of potassium hydroxide in 159.4 parts of water heated to 40 ° C., 30%
Surfactant solution 165.
I got 4 copies. The above heated bitumen was then dispersed in the surfactant solution in a colloid mill homogenizer. 384.6 parts of an emulsion containing 57% bitumen are obtained. When the emulsion had cooled, 175.9 parts of cold water and 438.5 parts of cement were added to the emulsion with vigorous stirring. The resulting liquid binder composition was ready for use.

Example 2 Hard base 135.8 with a penetration depth of 30 × 1/10 mm or less obtained by deasphalting with propane
Part is heated to about 180 ° C., and the kinematic viscosity at 50 ° C. is 300 to 500 mm ² / s (French standard NF T
Solvent extraction aromatic oil heated to about 80 ° C. (measured according to 60-100) was added. These two starting materials were then mixed and the resulting homogeneous mixture maintained at about 130 ° C. Separately, polyethoxylated nonylphenol 5.
144.9 parts of a surfactant solution consisting of 6 parts, 1.4 parts of a plasticizer for concrete and 137.9 parts of water heated to 40 ° C. were prepared. Then, the above-mentioned homogeneous mixture was dispersed in the surfactant solution in a colloid mill homogenizer. 60%
362.3 parts of an emulsion containing the dispersed hydrocarbon phase of was obtained. The produced emulsion was cooled, and 202.9 parts of cold water and 434.8 parts of cement were added to this emulsion with vigorous stirring.
The resulting liquid binder composition was ready for use. Example 3 241.3 parts of paraffinic bitumen having a penetration depth of 50 to 70 × 1/10 mm (measured according to French standard NF T66-004) was heated to about 150 ° C. Separately, the hydro-isopropanol medium (hydro-isopropano
lic medium) in 50% strength solution of stearyl pentamethyldiammonium chloride 9.4 parts, calcium chloride hexahydrate 0.6 parts, and water heated to 40 ° C.
333.4 parts of a surfactant solution consisting of 323.4 parts were prepared.
To the above aqueous phase and bitumen was added 10.1 parts of kerosene having the characteristics specified in French standard NF M15-003 immediately before introduction into the colloid mill and then dispersed through a colloid mill homogenizer. A homogeneous mixture of bitumen and kerosene was then obtained by passing through a static dispersing device. Thus an emulsion containing 43% dispersed phase 58
I got 4.8 copies. The dispersed phase consisted of diluted bitumen containing 4% kerosene. The emulsion was cooled and 415.2 parts of cement were added to it with vigorous stirring. The resulting liquid binder composition was ready for use.

Currently, the most satisfactory auxiliaries for use in the compositions of the present invention have a neutral pH at a relative density (25 ° C.) of 1.17 and are supplied by Seeker and have a plastitard (plastitard) content.
A yellowish liquid known by the trade name tiretard). This product is a French standard NF P18-33
7 and NF P18-336, and is a gluconate. Most importantly, the adjunct can be mixed directly with the hydrocarbon-based binder before mixing the hydrocarbon-based crystallizing agent and hydraulic binder, or the adjuncts can be mixed after mixing both. On the other hand, at least one auxiliary agent for controlling the curing rate of the hydraulic binder is added to the mixture of the hydrocarbon binder emulsion and the hydraulic binder, followed by various uses. Introducing possible fillers.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Gortel Ziyatsk France 92290 Satoney-Malabry Abunyu Roije Sarngro 19 Residenz Ledriade (72) Inventor Pelion Robert France 78114 Manile Améo de Deyu 8me 1945, 11 ( 72) Inventor Perono Gérier, France 78210 Saint-Cyr-Record Reu-Victor Hugo 24

Claims (16)

[Claims] 1. A binder composition comprising an aqueous emulsion of at least one hydrocarbon-based binder and at least one hydraulic binder, wherein the binder composition further comprises the water. A binder composition comprising at least one auxiliary for controlling the curing rate of a hard binder to produce a liquid product having a viscosity of less than 1 Pas. 2. The auxiliary agent is a curing retarder, a curing accelerator,
A composition according to claim 1, characterized in that it is selected from the group consisting of thinners, plasticizers, inhibitors, thixotropic agents and organic polymers. 3. The composition according to claim 1, wherein the auxiliary agent is gluconate. 4. The composition according to claim 1, further comprising at least one inorganic filler. 5. The composition according to claim 1, which further comprises at least one organic filler. 6. Composition according to claim 1, characterized in that it also contains at least one metal filler. 7. The composition according to claim 4, wherein the inorganic filler comprises siliceous powder, limestone powder, natural fiber, artificial fiber, or a mixture of any two or more thereof. 8. The organic filler is a synthetic fiber such as vegetable fiber, polyamide, polyvinyl chloride, polyester, polyethylene, polypropylene, or any two thereof.
A composition according to claim 5, characterized in that it comprises a mixture of more than one species. 9. The composition according to claim 6, wherein the metal filler comprises aluminum powder, iron powder, copper alloy powder, or a mixture of any two or more thereof. 10. About 30 per 100 parts hydraulic binder.
~ 300 parts of an aqueous emulsion of hydrocarbon binder, about 0.2 ~
1 part auxiliary agent, 0 to 1 part inorganic filler, and 0 to 15
A composition according to claim 1, characterized in that it contains some metal filler. 11. In preparing the binder composition of claim 1, a) introducing at least one surfactant into water at a temperature of about 10 ° C. to about 80 ° C., and b) at least. Approximately 1 hydrocarbon binder in a separate container
Heating to a temperature of 00 to 200 ° C., c) mixing the surfactant and the hydrocarbon binder to form an aqueous emulsion, d) introducing the aqueous emulsion into a homogenizer, Introduce a hydraulic binder separately into this homogenizer, e) Introduce an auxiliary agent at any stage to control the curing rate of said hydraulic binder, f) If necessary, before mixing in said homogenizer Alternatively or later, at least one filler is added, and g) the final product is stored for later use. 12. The method according to claim 11, wherein the auxiliary agent is added directly to the aqueous emulsion of the hydrocarbon binder.
The method described. 13. The auxiliary agent is added after the aqueous emulsion of the hydrocarbon-based binder and the hydraulic binder are mixed in the homogenizer.
The method described in 1. 14. The hydrocarbon binder is a pure bitumen, a regenerated bitumen, a paraffinic, a naphthenic or aromatic petroleum solvent, a petroleum compound produced from a steam cracking distillate, a pure tar, a coal liquefaction. oil,
The method of claim 11, wherein the method is selected from the group consisting of heavy oil, soft pitch and special pitch. 15. The method according to claim 11, wherein the hydraulic binder is cement or lime-containing slag cement, and water is added thereto as required. 16. A road surface material comprising the binder composition according to claim 1.