KR101675882B1 - The normal temperature ascon composition for repair - Google Patents
The normal temperature ascon composition for repair Download PDFInfo
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- KR101675882B1 KR101675882B1 KR1020150043446A KR20150043446A KR101675882B1 KR 101675882 B1 KR101675882 B1 KR 101675882B1 KR 1020150043446 A KR1020150043446 A KR 1020150043446A KR 20150043446 A KR20150043446 A KR 20150043446A KR 101675882 B1 KR101675882 B1 KR 101675882B1
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular compounds
- C04B20/1044—Bituminous materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Road Paving Structures (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a room temperature ascon composition for repairing, which comprises 95 to 105 parts by weight of an aggregate; And 3.5 to 5 parts by weight of cutback asphalt.
By using 50 to 70 parts by weight of recycled aggregate as a constituent of the aggregate, it is possible to prevent environmental pollution and to actively supply a room temperature ascon composition for maintenance through reduction of manufacturing cost. In addition, SBS, SBR, Synthetic rubber can be added to improve strength, durability and bonding force, and an inorganic filler having an expansion property can be added so as not to be lost in water to improve water stability.
Description
The present invention relates to a room temperature ascon composition for maintenance.
Generally, asphalt concrete is abbreviated as asphalt or ascon, and it is used as a name of heated asphalt mixture (SPS-KA10002-F2349-5687).
Such an ascon is an aggregate of sand, gravel, etc., which is heated or mixed at a normal temperature. It is mainly used for road pavement and parking lot, and is classified into various types according to the purpose of use, use, function and construction method.
Here, the at-room temperature ascon is a non-heated ascon using the property that the mixed aggregate is hardened when exposed to normal-temperature air, and is a mixture of aggregate and asphalt. Thus, It is used for repairing small-sized damaged parts due to pipelines and pipelines.
Regarding such repairing room temperature ascon, Korean Patent Registration No. 10-0880030 (filed on October 10, 2007, published on Jan. 22, 2009, hereinafter referred to as "prior art") discloses a binder and a road packaging There has been proposed an asbestos composition for emergency maintenance.
Specifically, the prior art relates to an ascon composition capable of promptly repairing a damaged portion of a road pavement, and is characterized in that it is capable of emergency repair at room temperature, and is highly resistant to stability, durability, and moisture.
However, these conventional techniques still have poor strength and durability, and in particular, they are insufficient in resistance to moisture, so it is difficult to repair the road in the rain or snow, and even after repairing due to moisture or water, There is still a problem that can occur.
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an emergency repairing method and a method of repairing a road surface, But also improved strength, bonding strength, moisture stability and durability.
In order to accomplish the above object, the present invention provides a repairing room-temperature asconic composition comprising 95 to 105 parts by weight of an aggregate; And 3.5 to 5 parts by weight of cutback asphalt.
The aggregate may include 50 to 70 parts by weight of a recycled aggregate; 15 to 25 parts by weight of the first aggregate; And 15 to 25 parts by weight of a second aggregate having a particle size smaller than that of the first aggregate.
The cutback asphalt may further comprise 70 to 90 parts by weight of asphalt; 9 to 11 parts by weight of a solvent; 3 to 5 parts by weight of an inorganic filler; 2 to 3 parts by weight of a styrene-butadiene-styrene (SBS) triblock copolymer; And 2 to 3 parts by weight of a styrene-butadiene rubber (SBR) block copolymer.
The inorganic filler is at least one of Talc, Titanium Dioxide, Carbon Black and Clay.
The present invention has the following effects.
First, by using 50 to 70 parts by weight of the recycled aggregate as the aggregate, it is possible to prevent environmental pollution, and active supply of the room temperature ascon composition for maintenance through reduction of manufacturing cost is possible.
Second, synthetic rubber such as SBS and SBR can be added to the cutback asphalt to improve strength, durability and bonding force, and an inorganic filler having an expansion property can be added so as not to be lost in water, thereby improving water stability.
1 is a graph showing a weight part and a stability (N) of a cutback asphalt according to an embodiment of the present invention.
2 is a graph showing a weight part and a flow value (1/100 cm) of a cutback asphalt according to an embodiment of the present invention.
FIG. 3 is a graph showing a weight part and a porosity (%) of a cutback asphalt according to an embodiment of the present invention.
Before describing the configuration of the present invention in detail, the terms used in the present specification and claims should not be construed in a dictionary meaning, and the inventor must understand the concept of a term The present invention should be construed as meaning and concept consistent with the technical idea of the present invention.
Therefore, the embodiments described herein are merely preferred embodiments of the present invention, and not all of the technical ideas of the present invention are expressed, so that various equivalents and modifications are possible at the time of filing of the present application It should be understood.
The preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.
<Maintenance Ascon Description of composition >
The present invention relates to an asphalt composition for repairing a room temperature asphalt composition which is easy to repackage at the time of repacking a small road surface due to breakage of a local area such as roads, (Cutback Asphalt).
The aggregate of the present invention is generally not limited to the type and shape of a conventional aggregate used for an ascon, and can be classified into a coarse aggregate and a fine aggregate depending on the size of the aggregate, and natural aggregates, artificial aggregates, As shown in Fig.
Specifically, the aggregate used in the present invention may be formed of any one or a combination of at least two of crushed stone, gravel, sand, stone, steel dust, bottom-ash and slag.
The aggregate preferably comprises 95 to 105 parts by weight, and is composed of the recycled aggregate, the first aggregate and the second aggregate.
Here, the recycled aggregate refers to recycled by-products and wastes generated in various construction sites. Through this, it is possible to prevent the environmental pollution due to the disposal of waste and the burial, and also to reduce the manufacturing cost, It plays a role of actively promoting the room temperature ascon composition for maintenance.
The recycled aggregate preferably contains 50 to 70 parts by weight of the recycled aggregate. If the recycled aggregate is out of the range of 50 to 70 parts by weight, the recycled aggregate may be mixed with the first aggregate and the second aggregate to provide durability, workability, This is because there is a falling problem.
In addition, the recycled aggregate preferably has a particle size range of 0.08 to 10 mm in order to smoothly mix with other components and to have a predetermined strength.
Meanwhile, the first aggregate may be prepared as a coarse aggregate having a particle size range of 0.08 to 10 mm, and preferably 15 to 25 parts by weight in order to smoothly mix with other components and have a predetermined strength.
The second aggregate may have a smaller particle size range than the recycled aggregate and the first aggregate for proper mixing between the particles of the recycled aggregate and the first aggregate and may be provided with a fine aggregate having a particle size range of 0.08 to 5 mm , And 15 to 25 parts by weight.
The cut-back asphalt preferably contains 3.5 to 5 parts by weight of the asphalt. When the amount of the asphalt is less than 3.5 parts by weight, the structural performance and the workability are deteriorated. When the amount exceeds 5 parts by weight, There is a problem.
Also, cutback asphalt consists of asphalt, solvent, SBS, SBR and inorganic filler.
In general, the asphalt used for road pavement is semi-solid at room temperature, and therefore it is mixed with other aggregates or melted through heating when it is sprayed on the road surface. However, the asphalt of the present invention is mixed with volatile petroleum solvent, Since it is an asphalt (Cutback Asphalt), it can be directly installed on the road surface without heating at room temperature.
Specifically, cut-back asphalt is evaporated according to the type of solvent to be mixed, and the speed at which it is dried and cured varies. Rapid curing (RC), medium curing (MC) and slow curing do.
Here, the cutback asphalt according to the present invention is preferably used in a rapid curing type because it is used in maintenance work requiring urgency.
On the other hand, it is preferable that the asphalt contains 70 to 90 parts by weight. If the amount of asphalt is less than 70 parts by weight, the durability and workability are poor. When the amount exceeds 90 parts by weight, the bonding strength with other components is low.
In addition, the solvent may be variously prepared from gasoline, light oil or the like, and when such a solvent is used in the production of cutback asphalt, the viscosity can be lowered and thus the fluidity is improved.
Here, it is preferable that the solvent contains 9 to 11 parts by weight, because if the solvent is out of the range of 9 to 11 parts by weight, there is a problem that the viscosity is not suitable for the work.
Generally room temperature ascon is deteriorated in stability and strength when it comes into contact with water. This is because the aggregate has better affinity for water than asphalt, so that the water may penetrate into the aggregate and the adhesion between the aggregate and the asphalt may be lowered, resulting in the separation of the asphalt coating.
Therefore, the cutback asphalt according to the present invention is characterized by being able to improve strength, bonding strength, moisture stability and durability by further adding SBS, SBR and an inorganic filler.
SBS is a styrene butadiene styrene (SBS), which is a tri-block copolymer prepared by polymerizing styrene monomers and butadiene. It is more resistant to abrasion, aging, heat resistance This is an excellent synthetic rubber.
SBR is a block copolymer made by polymerizing styrene monomer and butadiene. It is a synthetic resin which is superior in abrasion resistance, aging resistance and heat resistance than natural rubber like SBS. It is a styrene-butadiene rubber (SBR) It is rubber.
SBS and SBR each preferably contain 2 to 3 parts by weight, and can be added to cutback asphalt to serve as a modifier, thereby improving the strength, bonding strength and durability of cutback asphalt.
On the other hand, the inorganic filler is provided in at least one of Talc, Titanium Dioxide, Carbon Black and Clay having swelling properties so as not to be lost in water.
The inorganic filler preferably comprises 3 to 5 parts by weight, because if the inorganic filler is out of the range of 3 to 5 parts by weight, the strength, bonding strength, moisture stability and durability of the components are deteriorated.
In addition, the filler and filler and the adhesion agent may be added to improve the strength and bonding strength of the conventional room temperature ascon composition for repair according to the present invention.
Here, the filler or filler may be provided as at least one of calcium carbonate, limestone, Portland cement, slaked lime, fly ash, recovered dust, electric furnace slag, cast dust, various incineration slag, and other powder of suitable mineral substances .
As described above, the product provided with the room temperature ascon composition for repair of the present invention is easy to construct and is quick in curing because it can be quickly opened after construction. Therefore, it is suitable for emergency repair such as damaged ascon road and parking lot, Storage and water resistance.
< Example >
Hereinafter, preferred embodiments of the present invention will be described. However, the following embodiments are only examples of the present invention showing the structure and effects of the present invention, and the present invention is not limited to the following embodiments.
The aggregate according to the present invention is most preferably mixed with 60 parts by weight of the recycled aggregate, 20 parts by weight of the first aggregate and 20 parts by weight of the second aggregate.
Table 1 below shows the mixed particle size of the aggregate to which the specific particle size according to the size of the sieve and the most preferable weight portion of the aggregate are applied, and it is a test result that indicates whether or not the mixed particle size is matched.
Granularity
As shown in Table 1, according to the embodiment of the present invention, the mixed particle size of the aggregate has an appropriate particle size that conforms to the specification particle size according to the size of each sieve, thereby improving the durability, storage property and workability of the aggregate .
In order to examine the strength, bonding strength, durability and water stability of the repairing room temperature ascon composition of the present invention, a Marshall test was conducted.
Specifically, the Marshall test was conducted on the basis of the item of standard number KS F 2369, which is specified for a room temperature ascon mixture for road maintenance used for urgent or simple maintenance of the pavement of the Ascon pavement.
Table 2 below is a numerical representation of the Marshall Test reference value applied to the ascon in order to examine strength, bonding strength, durability and water stability.
Among the items in Table 2, the stability shows the strength, bonding strength and durability of the ascon, and the immersion stability shows the water stability (water resistance) of the ascon.
Here, the formula of the porosity (%) and the immersion residue stability (%) is as follows.
Table 3 below shows the results of the Marshall stability test and the soaking and Marshall stability test of the repairing room temperature asconcrete composition prepared with 100 parts by weight of aggregate and 4 parts by weight of cutback asphalt, which is the most preferred embodiment of the present invention.
exam
exam
As shown in Table 3, 4305, which is the value of the stability (N) according to the embodiment of the present invention, is much higher than the standard value of the stability (N) of 2500 shown in Table 2, .
As shown in Table 3, since the flow value is 27, it can be understood that it is suitable for the reference value of the flow value shown in Table 2, which is 10 to 40.
Since the value of the apparent density (actual density) according to the embodiment of the present invention is 2.2 and the theoretical maximum density is 2.5, the porosity (%) is substituted into Equation (1) Therefore, it can be understood that it is suitable for the reference value 3 to 15 of the porosity (%) shown in Table 2. [
On the other hand, the water-absorbing stability (N), which can be measured in the soaking stability test, shows the stability (N) after soaking for 48 hours at a temperature of 24 to 26 ° C and a value of 4829 as shown in Table 3.
Here, as shown in Table 3, by calculating the steepness (%) of soaking by substituting 4305 which is the value of the stability (N) and 4829 which is the value of the steepness (N) according to the embodiment of the present invention, The value of 112.2 is very high moisture stability, so it can be applied in rain or snowy weather, and it can maintain high strength, bonding force and durability even after construction, making it very suitable for emergency maintenance use.
Table 4 below shows the measured values of the stability (N), the water immersion stability (N) and the immersion residue stability (%) of the repairing room temperature asconcrete composition prepared by varying the content of asphalt with respect to 100 parts by weight of the aggregate.
Examples 1 to 4 of Table 4 show that the cut-back asphalt is prepared in an amount of 3.5 to 5 parts by weight, which is suitable for the standard values of the Marshall stability test and the soaking stability test and has excellent strength, bonding strength, moisture stability and durability Able to know.
On the other hand, through Comparative Example 1 and Comparative Example 2 in Table 4, if the cutback asphalt is out of the range of 3.5 to 5 parts by weight, it is not suitable to the reference value of the Marshall stability test and the soaking and Marshall stability test, Strength, bonding strength, water stability and durability are remarkably decreased.
The graph shown in Fig. 1 shows the change in the stability (N) according to the weight of the cutback asphalt, the abscissa indicates the weight of the cutback asphalt, and the ordinate indicates the value of the stability (N).
1, 3.5 to 5 parts by weight of cutback asphalt suitable for a reference value of 2500 or more as shown in Table 2, and a stability (N) of 3.5 to 5 parts by weight when the cutback asphalt is 4 parts by weight. It can be seen that the value is the maximum.
The graph shown in Fig. 2 shows the change of the flow value (1/100 cm) according to the weight portion of the cutback asphalt, the abscissa represents the weight portion of the cutback asphalt, and the ordinate represents the flow value (1/100 cm).
Specifically, the graph shown in FIG. 1 shows that the cutback asphalt suitable for 10 to 40, which is the reference value of the flow value (1/100 cm) shown in Table 2, is 3.5 to 5 parts by weight.
The graph shown in FIG. 3 shows the change in porosity (%) according to the weight of the cutback asphalt. The abscissa represents the weight of the cutback asphalt and the ordinate represents the value of the porosity (%).
Specifically, the graph shown in FIG. 1 shows that the cutback asphalt suitable for 3 to 15, which is the reference value of the porosity (%) shown in Table 2, is 3.5 to 5 parts by weight.
1 to 3, it can be seen that the cut-back asphalt is prepared in the range of 3.5 to 5 parts by weight, which is suitable for the Marshall test standard value. In the most preferred embodiment of the repairing room temperature ascon composition according to the
Table 5 below shows measured values of the immersion residual stability depending on the content of the inorganic filler in the repairing room temperature ascon composition prepared with 100 parts by weight of aggregate and 4 parts by weight of cutback asphalt.
The results of the experiments of Examples 1 to 3 of Table 5 show that the inorganic filler is provided in an amount of 3 to 5 parts by weight and has a steepness of residual soaking stability (more than 75, which is the reference value of the soaking stability (%) in the soaking stability test) %), Which indicates that the water stability is very excellent.
Further, as shown in Table 2, it is most preferable that the repairing room temperature asconic composition of the present invention is provided with 4 parts by weight of an inorganic filler.
On the other hand, when the inorganic filler is out of the range of 3 to 5 parts by weight based on the test results of Comparative Example 1 and Comparative Example 2 in Table 5, the value of the soaked residue stability (%) shows the value of the soaked residue stability (%) of the soaked Marshall stability test It is found that the moisture stability is lowered because it is less than the reference value of 75.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. And the scope of the present invention should be understood as the scope of the following claims and their equivalents.
Claims (4)
And 4 parts by weight of cutback asphalt (Cutback Asphalt)
The above-
50 to 70 parts by weight of a recycled aggregate having a particle size range of 0.08 to 10 mm;
15 to 25 parts by weight of a first aggregate having a particle size range of 0.08 to 10 mm; And
And 15 to 25 parts by weight of a second aggregate having a particle size range of 0.08 to 5 mm,
In the cutback asphalt,
70 to 90 parts by weight of asphalt;
9 to 11 parts by weight of a solvent;
4 parts by weight of an inorganic filler;
2 to 3 parts by weight of a styrene-butadiene-styrene (SBS) triblock copolymer; And
And 2 to 3 parts by weight of a styrene-butadiene rubber (SBR) block copolymer.
At room temperature ascon composition for maintenance.
Wherein the inorganic filler is at least one of Talc, Titanium Dioxide, Carbon Black and Clay.
At room temperature ascon composition for maintenance.
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| KR101675882B1 true KR101675882B1 (en) | 2016-11-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018148966A1 (en) * | 2017-02-20 | 2018-08-23 | 江苏宝利国际投资股份有限公司 | Sbr composite particle modified asphalt and preparation method thereof |
| KR101955359B1 (en) * | 2018-08-13 | 2019-03-06 | 도경건설 주식회사 | Stone mastic asphalt mixture |
| KR101953816B1 (en) * | 2018-08-13 | 2019-03-06 | 도경건설 주식회사 | Low Noise And Porous Modified Asphalt Binder Composition Having Improved Anti-Icing And Durability |
| KR102123329B1 (en) * | 2020-04-07 | 2020-06-16 | 홍성삼 | Normal temperature ascon composition for road repair |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008074919A (en) | 2006-09-20 | 2008-04-03 | Taisei Rotec Corp | Normal temperature asphalt mixture |
| KR101296271B1 (en) * | 2012-05-25 | 2013-08-13 | 신시종 | Normal temperature ascon |
| KR101470418B1 (en) | 2014-05-28 | 2014-12-12 | 금강환경산업(주) | Recycled Cold Asphalt Concrete Mixture Using Water Evaporating Emulsion Asphalt Binder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20060104966A (en) * | 2006-09-11 | 2006-10-09 | 홍영근 | Modifier endowing high toughness and elasticity to asphalt, and asphalt composition comprising the modifier |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008074919A (en) | 2006-09-20 | 2008-04-03 | Taisei Rotec Corp | Normal temperature asphalt mixture |
| KR101296271B1 (en) * | 2012-05-25 | 2013-08-13 | 신시종 | Normal temperature ascon |
| KR101470418B1 (en) | 2014-05-28 | 2014-12-12 | 금강환경산업(주) | Recycled Cold Asphalt Concrete Mixture Using Water Evaporating Emulsion Asphalt Binder |
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