KR101269194B1 - Aspalt sealant for Cant Strip or Haunch and Water-proofing Construction Method for Cold Applications using the same. - Google Patents

Abstract

The present invention relates to a one-component asphalt sealant for dry waterproofing of cant strips or haunches, and a water-resistant cold-cooling method using the same. (A) 400 to 600 parts of mineral fillers based on 130 to 150 parts by weight of asphalt (B) ) Synthetic rubber 2-10 parts (C) Fiber filler 20-80 parts (D) Plasticizer 10-30 parts (D) Cant strip or haunch, characterized in that it comprises 30-50 parts of mineral oil It relates to a dry waterproof asphalt sealant of the site and a waterproof method using the same.
In the case of the present invention, it is possible to form a cant strip or haunch itself by maintaining a constant shape until drying after application, and it is possible to have a waterproof function, as well as the pre-treatment work process or time required to significantly reduce and dry the process It is easy to use and can be constructed regardless of temperature or season.
In addition, since the asphalt sealant and the waterproofing material have the same asphalt-based physical properties, they have self-adhesive properties, as well as elasticity, and act as a buffer against heat and water expansion of the rootless concrete while generating cracks due to separation between materials. There is an advantage that there is no fear of defects.
On the other hand, the asphalt sealant of the present invention can be used in a one-component type, it can be used only by simple tools such as rubber spatula or metal spatula during construction has the advantage that it is easy to use so that even a simple laborer can work.

Description

Aspart sealant for Cant Strip or Haunch and Water-proofing Construction Method for Cold Applications using the same.}

The present invention relates to a dry waterproof asphalt sealant of a cant strip or haunch region and a dry waterproof cold air method using the same, comprising (A) 400 to 600 parts (B) of mineral filler based on 130 to 150 parts by weight of asphalt. 2 to 10 parts of rubber (C) 20 to 80 parts of fiber filler (D) 10 to 30 parts of plasticizer (D) 30 to 50 parts of mineral oil (cant strip) or haunch site It relates to a waterproof one-component asphalt sealant for use in dry and waterproof method using the same.

In general building structures, it is necessary to prevent water leakage from precipitation, and waterproof work is necessary to prevent cracking or deterioration of durability of the structure. In particular, the cant strip 11 or haunch portion where the floor surface of the slab-shaped roof and the external wall meet each other is shown in (a) or (b) of FIG. 1 to facilitate waterproofing. As we did, we had to do the rounding. In this case, the most commonly used material was Mortar, which kneaded cement and sand.

However, the mortar material is a moisture-curable type that hardens the moisture to dry, so that the heat evaporation rate in the heat of the heat is fast cracks, there is a problem that the concrete and material separation occurs even after hardening as shown in (c) of FIG. Therefore, if water-resistant defects occur, water leaked into the cant strip portion frequently moves along cracks or material separation gaps and elutes to other unexpected parts, thus making it difficult to repair the defects.

In order to solve the problem of the mortar material used for the waterproof construction of the cant strip or haunch site, a urethane sealant based on urethane has been proposed and used. The urethane sealant is a two-component material in which the main body and the curing agent are separated from each other. The urethane sealant has a difficulty in that the operator must properly mix the compounding ratio at the time of construction, and also has a low viscosity, which is easy to flow, so the desired shape can be obtained during construction. There was a problem that it is very difficult to maintain until fully cured. In addition, in the case of the urethane sealant, the physical properties do not match with the bitumen (asphalt) material, so it is difficult to bond with the waterproof material mainly composed of asphalt, so that the adhesive strength is 0.02 N / mm ² There was a problem in that it had only a weak adhesive strength of the test citation).

On the other hand, asphalt waterproofing is the waterproofing method that has been used for a long time is a method of applying multiple layers of molten asphalt such as asphalt felt, asphalt compound and asphalt roofing to the waterproofing part. The asphalt waterproof is excellent in the waterproof effect, the waterproof layer is excellent in the waterproof layer, excellent durability and watertightness, the waterproof effect is good, but it must be used to melt the solid asphalt at a high temperature, and the layer construction should be complicated and requires a special construction technology. There was a problem that a lot of labor costs. In addition, the above method is a problem that the construction of the vertical surface is not possible due to the physical properties such as the viscosity and flowing down of the molten asphalt, the rise of the joints and the adhesive portion is easy to occur, and sensitive to changes in temperature, the cracking of the waterproof layer at low temperatures There was this. In addition, due to the smoke generated during melting there was a disadvantage that the complaints of environmental pollution and burn accidents of the worker is frequent.

As an asphalt sealant which improved the characteristic of the asphalt sealant which uses the existing asphalt as a main material, inventions like the "asphalt joint and sealant composition" of patent document 1 and the "asphalt sealant composition" of patent document 2 are proposed. The asphalt sealants have the characteristics that their physical properties are improved compared to conventional asphalt sealants, but mainly improved the penetration / elongation to fill cracks such as cracks. Unlike the present invention in which the asphalt sealant maintains a constant shape, there is a problem that it is impossible to maintain a constant shape because it flows down immediately after application.

Patent Document 1: Republic of Korea Patent No. 10-0332632 Patent Document 2: Republic of Korea Patent No. 10-0388810 Patent Document 3: Republic of Korea Patent No. 10-0814087 Patent Document 4: Republic of Korea Patent No. 10-0940350

The present invention solves the problems of the existing inventions described above, it is possible to maintain a constant shape of the asphalt sealant on the cant strip or haunting area until the application and drying, as well as significantly reduce the pretreatment work process or time required, dry operation The task is to make it easier to proceed with the subsequent process and to allow construction regardless of temperature or season.

In addition, since the asphalt sealant and the waterproofing material have the same asphalt-based physical properties, they have self-adhesive properties, as well as elasticity, and act as a buffer against heat and water expansion of the rootless concrete while generating cracks due to separation between materials. The task is to ensure that there is no fear of defects.

On the other hand, it can be used as a one-part type, and it is possible to use only a simple tool such as rubber spatula or metal spatula, so the task is to provide an asphalt sealant that is easy to use so that even laborers can work. .

In order to achieve the above object, dry waterproofing one-component asphalt sealant of the cant strip or haunch site of the present invention has a weight of 130 to 150 parts of asphalt (A) mineral filler 400 to 600 parts (B) synthetic rubber 2 to 10 (C) 20 to 80 parts of fiber filler (D) 10 to 30 parts of plasticizer (D) 30 to 50 parts of mineral oil.

In addition, the mineral filler is characterized in that at least one selected from talc, silica fume (silica fume), calcium carbonate, bentonite (bentonite) to be used alone or in combination, the synthetic rubber is styrene-butadiene-styrene (SBS), Tefron (tefron) is used to select one or more selected or used in parallel or in parallel, wherein the fiber filler is selected from arbocel (arbocel), pulp used alone or in parallel The plasticizer is characterized in that using paraffin oil.

In addition, with respect to 140 parts by weight of the asphalt, the mineral filler is 90 parts as silica fume and 464 parts as calcium carbonate, the synthetic rubber is 5 parts as tefron, the fiber filler is arbocell ( arbocel) 54 parts, the plasticizer is characterized in that it comprises 20 parts as paraffin oil, the mineral oil 40 parts.

On the other hand, in the dry waterproof cold air method using the dry waterproof asphalt sealant of the cant strip or haunch site of the present invention, the dry waterproof asphalt sealant 100 has a cross section between the wall surface and the bottom surface of the cant strip or haunch portion of the wall surface (10). ) And a hypotenuse rounded to form a triangular shape 50 having the height and bottom sides of the bottom surface 20, respectively, or a cross section having a height and a bottom edge of the wall surface 10 and the bottom surface 20, respectively. a first asphalt sealant coating step of applying a rounding) to a height of 2 to 3 cm and a width of 4 to 5 cm to form a recessed triangle shape; Characterized in that comprises a.

And, before the first asphalt sealant coating step, the waterproof base surface drying step of drying the wall surface and the bottom surface of the waterproof base surface to be constructed; Fiber mesh installation step of installing a fiber mesh 40 of width 10 ~ 15cm on the bottom surface 20 in contact with the wall surface 10; Asphalt primer 30 on the wall surface 10 and the bottom surface 20 Asphalt primer coating step of applying and curing for 20 to 40 minutes; And further comprising:

In addition, after the first asphalt sealant coating step,

Asphalt waterproof sheet installation step of installing the asphalt waterproof sheet 60 on the triangle shape (50); A second asphalt sealant coating step of applying the dry waterproof asphalt sealant at a height of 2 to 3 cm and a width of 2 to 3 cm to form a triangular shape 70 between the asphalt waterproof sheet 60 and the wall surface 10; Characterized in that it comprises a.

According to the present invention, it is possible to maintain the desired shape in the cant strip or haunch portion of the wall constantly after the application of the asphalt sealant and to have a waterproof function, as well as to significantly reduce the pretreatment work process or time required and dry work. Since it is easy to proceed with the subsequent process, construction is possible regardless of temperature or season.

In addition, since the asphalt sealant and the waterproofing material have the same asphalt-based physical properties, they have self-adhesive properties, as well as elasticity, and act as a buffer against heat and water expansion of the rootless concrete while generating cracks due to separation between materials. There is an advantage that there is no fear of defects.

On the other hand, the asphalt sealant of the present invention can be used in one-part type, and does not require the addition of other additives such as a solvent and a curing agent. In addition, since it is possible to construct using only a simple tool such as rubber hera or metal hera during construction, there is an advantage that the use is so easy that even a simple laborer can work.

In addition, since it does not contain solvents such as solvents, when used together with other waterproofing materials, side effects such as material separation or physical property change do not occur, and sedimentation or phase separation in the mixed asphalt sealant does not occur once, and thus construction is performed. The advantage is that it can be stored for a relatively long time.

On the other hand, it is possible to secure the required physical properties while maintaining a low compounding ratio of the relatively expensive synthetic rubber component has the advantage of being economic.

1 is a cross-sectional view of a mortar cant strip region according to the existing embodiment.
Figure 2 is a schematic cross-sectional view showing the step of the dry waterproofing cold cooling method using a dry waterproof asphalt sealant of the cant strip (hunt) or haunchi area according to a preferred embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, it will be described in detail the dry waterproof asphalt sealant of the cant strip or the haunch region and the dry waterproof cold air method using the same according to an embodiment of the present invention. First, it should be noted that, in the drawings, the same components or parts are denoted by the same reference numerals whenever possible. In describing the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as to avoid obscuring the subject matter of the present invention.

First, a dry waterproof asphalt sealant of a cant strip or haunch site according to an embodiment of the present invention will be described.

Dry waterproof asphalt sealant of the cant strip or haunch site of the present invention is (A) 400 to 600 parts of mineral filler (B) 2 to 10 parts of synthetic rubber (C) fiber filler 20 to 80 to 130 to 150 parts of asphalt by weight. (D) 10 to 30 parts of plasticizer (D) 30 to 50 parts of mineral oil.

In this case, as the asphalt, any asphalt such as straight asphalt, cutback asphalt, goose asphalt, blown asphalt, emulsified asphalt, emulsified (PG) grade asphalt, asphalt compound can be used, but it is preferable to use straight asphalt. . In the straight asphalt, it is preferable that the softening point is 30 to 100 ° C. and the penetration is 30 to 195. However, the softening point is 40 to 60 ° C. and the penetration is 80 to 180. Examples of straight asphalt include AP-5, AP-3, and AP-2.5 provided by SK Oil, LG Caltex, or S-Oil. In this case, the asphalt is most preferably used AP-3.

On the other hand, the mineral filler has an important function to maintain a constant shape until drying by adjusting the viscosity of the asphalt sealant of the present invention is selected by adding the content and material of various types of mineral filler, talc, It is possible to select one or more from silica fume, calcium carbonate, and bentonite, to be used alone or in combination. In this case, it is preferable that the mineral filler contains 90 parts as silica fume and 464 parts as calcium carbonate relative to 140 parts by weight of the asphalt.

Next, the synthetic rubber is added to select the content and material to complement the flowability, it is possible to use any one or more of the synthetic rubber of various materials, preferably styrene-butadiene-styrene It is possible to select one or more of (SBS) and tefron and use either alone or in parallel. In this case, it is most preferable that the synthetic rubber contains 5 parts as tefron.

Next, the fiber filler has an important function to maintain a constant shape until drying by supplementing physical properties, such as adjusting the viscosity and improving the tensile strength elongation rate, select any one or more of the fiber filler of various materials It is possible to use, preferably one or more selected from arbocel (arbocel), pulp can be used alone or in parallel. In this case, when the amount of the fiber filler is too small, it is difficult to maintain a constant shape due to the increase in flowability, and when the amount of the fiber filler is excessive, it is easy to apply and cut only with a simple tool such as rubber or metal spatula. It is preferable to determine the type and content in consideration of the fact that it is not, and it is most preferable to include 54 parts as arbocels.

On the other hand, the plasticizer can be used to select any one of a variety of various plasticizers, it is preferable to use paraffin oil in consideration of the physical properties and unit cost. In this case, it is preferable that the plasticizer contain 20 parts as paraffin oil.

In addition, the mineral oil is included in order to compensate for the dripping property. In this case, the mineral oil is preferably included in 40 parts. On the other hand, the mineral oil is sometimes referred to by various names, such as grease, base oil or petroleum resin.

In the following, the asphalt sealant of the present invention will be described in detail with reference to a preferred embodiment of the present invention. It is a matter of course that the present invention is not limited only to the following examples.

≪ Example 1 >

First, the asphalt (AP-3) is added as shown in the following Table 1 and heated to 110 ℃ ~ 150 ℃, after the addition of paraffin oil, mineral oil and teflon 110 ℃ ~ 150 until completely dissolved Heat at 캜. Thereafter, the temperature is lowered to about 80 ° C., and silica fume, arbocell, and calcium carbonate are added in the order of low specific gravity, followed by stirring until complete mixing.

Name of material Weight ratio Remarks Asphalt (AP-3) 140 Paraffin process oil 20 Plasticizer Silica fume 90 Viscosity control, elongation improvement Arbocell 54 Viscosity control, tensile strength improvement Calcium carbonate 464 Viscosity adjustment Tefron 5 Drip Compensation Mineral oil 40 Drip Compensation

Next, the dry waterproof cold air method using the dry waterproof asphalt sealant used for the cant strip or haunch site of the present invention will be described.

First, as shown in (a) of FIG. 2, after performing a waterproof base surface drying step of drying the wall surface and the bottom surface which is the waterproof base surface to be constructed, and then as shown in (b) of FIG. 10) and the asphalt primer 30 is applied to the bottom surface 20 and performs an asphalt primer application step of curing for 20 to 40 minutes. The asphalt primer 30 is an adhesive primer that does not need to be applied while applying heat separately using a heating means such as a torch, and is a coated asphalt primer including asphalt, an adhesive, an auxiliary agent, and a solvent. In this case, the adhesive generally includes synthetic rubber such as SBS rubber (Poly (styrenebutadiene styrene)) and chloroprene rubber, and the auxiliary agent is silica fume, pulp, dolomite, calcined ash, calcium carbonate, and calcium carbonate. It comprises one or more components selected from the group consisting of, the solvent is generally composed of alcohol, toluene, dimethyl cabonate (DMC) or mixtures thereof. The asphalt primer 30 is selected as one of a wide variety of embodiments, such as being carried out as an asphalt primer liquid, as well as being implemented integrally with the sheet while the asphalt primer is infiltrated into a sheet-like material. It is possible to use.

Then, as shown in (c) of Figure 2, after performing a fiber mesh installation step of installing a fiber mesh 40 of width 10 ~ 15cm on the bottom surface 20 in contact with the wall surface 10, As shown in (d) of FIG. 2, the cross section between the wall surface and the bottom surface of the dry waterproof asphalt sealant 100 on the fiber mesh 40 is the wall surface 10 and the bottom surface 20. ) Is applied to the first asphalt sealant coating step of applying a height of 2 to 3 cm, a width of 4 to 5 cm to form a triangular shape (50) of the height and base. In this case, the shape of the cross section between the wall surface and the bottom surface, as shown in (b) of FIG. 1 according to the construction form, the cross section of the wall surface 10 and the bottom surface 20 to the height and base side, respectively It is also possible to form a triangular shape in which the hypotenuse is rounded and recessed.

As the material of the fiber mesh 40, various materials such as glass fiber, synthetic resin, and mineral fiber may be used, but glass fiber is particularly preferable. Fiberglass mesh is a tape-shaped mesh impregnated with high adhesion asphalt sealant on both sides of the glass fiber. Conventionally, a waterproof sheet is used for waterproofing the corners of the bottom surface and the wall surface, and in this case, a method of installing the waterproof sheet by applying a reinforcing tape and folding the waterproof sheet from the floor surface to the wall surface is common. At this time, when the waterproof sheet is folded, the lifting part occurs in the folded part and the waterproof sheet attached to the wall easily sags. When the waterproof sheet is installed on the wall, the process of heat-processing with a torch is inevitably added to the life of the waterproof sheet. There was a shortcoming. However, if the glass fiber mesh is installed at the corners of the wall and the bottom surface, there is no lifting phenomenon of the corners, thereby increasing the waterproof effect, eliminating the step of heat processing, and material separation phenomena with the same properties as the asphalt primer and asphalt sealant. The advantage is that it does not appear.

On the other hand, the dry waterproof cold air method using the dry waterproof asphalt sealant of the cant strip or haunch site of the present invention, as shown in Figure 2 (e), to install the asphalt waterproof sheet 60 on the triangular shape (50) Asphalt waterproof sheet installation step, as shown in (f) of Figure 2, 2-3cm in height, 2 ~ 3cm in height to form a triangular shape 70 between the asphalt waterproof sheet 60 and the wall surface 10 It is preferable to further perform a second asphalt sealant coating step of applying the dry waterproof asphalt sealant at 3cm. In this case, the triangular shape 70 in the second asphalt sealant coating step is also similar to the triangular shape 50 in the first asphalt sealant coating step, and the shape of the cross section is the wall surface according to the construction form. 10) and the bottom surface 20, respectively, the height and the bottom side, it is possible to form a triangular shape in which the hypotenuse is rounded (rounded).

In this case, the asphalt waterproof sheet 60 can be used to select one of a wide variety of embodiments using asphalt as a waterproof material. As one embodiment of the asphalt waterproof sheet 60, the Republic of Korea Patent No. 10-0814087 of the Patent Document 3 of the present applicant "Asphalt waterproof sheet using butyl rubber or polyvinyl butyl al and waterproof method using the same "Or the Republic of Korea Patent No. 10-0940350 of Patent Document 4" self-adhesive asphalt waterproof sheet and a waterproof method using the same "may be considered.

On the other hand, in the above description for the convenience of the installation in the case can be installed in the cant strip site as an example, but in the case of haunch (mountain) installed on the wall, etc., there is a difference only in the installation position, the structure and the shape of the cross section, etc. Since is the same or almost similar to the cant strip, it is possible to implement a dry waterproof cold air method using the one-component asphalt sealant for dry waterproofing of the present invention even in the case of haunch.

In addition, when installing the asphalt waterproof sheet 60, unlike the existing method to install the asphalt waterproof sheet 60 to the wall surface 10, the one-component asphalt sealant for dry waterproofing itself has a waterproof performance. As shown in (e) or (f) of FIG. 2, the asphalt waterproof sheet 60 only needs to be installed to be in contact with the wall surface 10 so that the construction is simple and economical by saving materials. Construction is possible.

Optimal embodiments have been disclosed in the drawings and specification. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: wall panel
20: bottom surface
30: asphalt primer
40: fiber mesh
50: triangle shape formed after the first asphalt sealant coating step
60: asphalt waterproof sheet
70: triangle shape formed after the second asphalt sealant application step

Claims (6)

(A) Mineral filler 400 to 600 parts (B) Synthetic rubber 2 to 10 parts (C) Fiber filler 20 to 80 parts (D) Plasticizer 10 to 30 parts (D) Mineral oil Iv) A dry, waterproof, one-component asphalt sealant for use in cant strips or haunch areas, comprising 30 to 50 parts.
The method according to claim 1,
The mineral filler is characterized by using one or more selected from talc, silica fume (silica fume), calcium carbonate, bentonite (bentonite),
The synthetic rubber is characterized in that to use at least one selected from styrene-butadiene-styrene (SBS), tefron (tefron),
The fiber filler is characterized in that to use at least one selected from arbocel (arbocel), pulp,
The plasticizer is a dry waterproof one-component asphalt sealant for use in cant strips or haunches, characterized in that using paraffin oil.
The method according to claim 2,
By weight 140 parts of the asphalt, the mineral filler is 90 parts as silica fume and 464 parts as calcium carbonate, the synthetic rubber is 5 parts as tefron, the fiber filler is arbocel And 54 parts, wherein the plasticizer is 20 parts as paraffin oil, and 40 parts of the mineral oil is dry waterproof one-component asphalt sealant for use in cant strips or haunches.
In the dry waterproof cold air method using a dry waterproof one-component asphalt sealant used in the cant strip or haunch site of any one of claims 1 to 3,
Cross section between the wall and the bottom surface of the dry waterproof asphalt sealant cant strip or haunchi site forms a triangular shape (50) with the wall surface 10 and the bottom surface 20 as the height and base, respectively, or The first asphalt sealant is applied to the wall surface 10 and the bottom surface 20 with heights and bases, respectively, and is applied at a height of 2 to 3 cm and a width of 4 to 7 cm so that the hypotenuse is rounded to form a recessed triangle shape. step; Dry waterproof cold air method using a dry waterproof one-component asphalt sealant for use in cant strips or haunches, characterized in that comprising a
The method of claim 4,
Before applying the first asphalt sealant,
A waterproof base surface drying step of drying a wall surface and a bottom surface of a waterproof base surface to be constructed;
A fiber mesh installation step of installing a fiber mesh 40 having a width of 10 to 15 cm on the bottom surface 20 in contact with the wall surface 10;
Applying an asphalt primer 30 to the wall surface 10 and the bottom surface 20 and curing the asphalt primer for 20 to 40 minutes; Dry waterproof cold air method using a dry waterproof one-component asphalt sealant for use in cant strips or haunches, characterized in that it further comprises
The method according to claim 5,
After applying the first asphalt sealant,
Asphalt waterproof sheet installation step of installing the asphalt waterproof sheet 60 on the triangular shape (50);
A second asphalt sealant coating step of applying the dry waterproof asphalt sealant at a height of 2 to 3 cm and a width of 2 to 3 cm to form a triangular shape 70 between the asphalt waterproof sheet 60 and the wall surface 10; Dry waterproof cold air method using dry one-component asphalt sealant for use in cant strips or haunches, characterized by comprising

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