KR20010090026A - The method of waterproof make use of polyester sheet improved on waterproof functional - Google Patents

Abstract

PURPOSE: A polyester improved waterproof sheet and a method for waterproofing by using thereof are provided to supply chemical stability, solvent resistance and heat resistance without reinforcing extra main tools and materials by composing a rubberized asphalt layer on a face of a heavy weight polyester non-woven fabric. CONSTITUTION: In the polyester improved waterproof sheet and a method for waterproofing by using thereof, a rubberized asphalt waterproof layer(2), a compound reinforced layer(3), an applied film waterproof layer(4), an applied film protecting material(5), an asphalt adhesive waterproof layer(6) and a concrete ground layer(7) are included. The asphalt adhesive waterproof layer(6) is formed on the concrete ground layer(7). An improved waterproof sheet is sticked on the asphalt adhesive waterproof layer(6). And then the compound reinforced layer(3) is formed by applying water-soluble emulsion and Portland cement. The applied film waterproof layer(4) is formed by applying polyurethane or elastic applied film waterproof material after forming a sticked layer and the applied film protecting material(5) is applied on it.

Description

Polyester improved waterproof sheet and waterproof method using same {The method of waterproof make use of polyester sheet improved on waterproof functional}

The present invention relates to an improved asphalt sheet and a waterproofing method using the same, and more specifically, an improved waterproof sheet and a composite waterproofing method using the same by combining advantages such as sheet waterproofing and cement liquid waterproofing and waterproofing of a coating film. It is about.

The building structure always contains the cause of leakage, so it is indispensable for waterproofing during new construction or repair.

Various kinds of waterproofing methods are applied to this, but mainly mortar liquid waterproofing, asphalt waterproofing, water soluble or useful coating waterproofing and sheet waterproofing are constructed.

Mortar liquid waterproofing is a method of adding concrete waterproofing or other liquid waterproofing agent to pre-produced concrete or mortar, or spraying repeatedly on the waterproofing part. Phenomenon occurs.

Asphalt waterproofing is a method of applying multiple layers of molten asphalt to the construction site, which can cope well with cracks of structures due to the elasticity of the asphalt itself, but has a disadvantage in that the waterproofing function is remarkably degraded due to prolonged exposure to sunlight. To prevent this, the economic burden is increased by inevitable processes such as protection mortar.

Coating waterproofing is a method of forming a coating film by repeatedly applying a polyurethane or acrylic rubber-like liquid waterproofing material to the surface of the structure, and can form a seamless waterproof layer, and there is an advantage that the construction of narrow construction sites can be easily performed. If cracks occur in the coating material, the coating material may also break, causing leakage.

As described above, in order to solve the problem of cracking or lifting of the waterproof layer, sheet waterproofing is widely used today. Sheet waterproofing is made by attaching low weight polyester nonwoven fabric 12 as the center reinforcement material and selecting or attaching asphalt or improved asphalt compounder 11, ultra-thin release film 10 or sand (colored yarn) 13, etc. In this way, the construction can be applied to the exposed and unexposed construction sites, in particular, the protective mortar or pressed concrete layer (8), which is poured during non-exposure construction, has a weakness in not completely maintaining the adhesive force with the sheet. In addition, the torch type construction method (Fig. 4), which is an exposure method, does not completely bond between the joints and the adhesive parts between the structures only by the adhesive force by the asphalt primer and the simple adhesive force effect of the asphalt heated and melted by the torch. If it does not occur, and if it is exposed to sunlight for a long time, it will be excited and cause water leakage due to moisture penetration. The construction method using the torch lamp always carries the risk of fire and safety.

The present invention has been invented to solve the above problems, by constructing a rubberized asphalt layer (waterproof layer) having an impermeable property on either side of a high-weight polyester nonwoven fabric without chemical reinforcement of a separate core substrate, chemical stability, solvent resistance, It is to provide an improved waterproof sheet having excellent heat resistance, flame retardancy and low molding shrinkage rate, and a waterproofing method using the same.

Another object of the present invention is to solve the problem of excessive weight of the pressing layer during the sheet method, and to provide a waterproof method that is flexible to the occurrence of cracks in the bottom layer and the waterproof layer is mutually reinforced.

Another object of the present invention relates to an improved waterproof sheet and a waterproof method using the same by combining the advantages of sheet waterproofing, cement / mortar liquid waterproofing, asphalt waterproofing and coating waterproofing.

1 is a cross-sectional view showing an improved waterproof sheet of the present invention.

2 is a cross-sectional view of the waterproof method using the improved waterproof sheet of the present invention.

3 is a cross-sectional view of a non-exposed waterproof method using a conventional improved asphalt sheet.

Figure 4 is a cross-sectional view of the exposure waterproof method using a conventional improved asphalt sheet.

5 is a cross-sectional view showing a waterproof sheet applied in a conventional non-exposed construction.

6 is a cross-sectional view showing a waterproof sheet applied in a conventional exposure construction.

※ Explanation of Codes on Major Parts of Drawings

a: Improved waterproof sheet b: Conventional unexposed sheet

C: conventional exposure sheet

1: high weight polyester nonwoven fabric 2: rubberized asphalt waterproof layer

3: mixed reinforcement waterproofing layer 4: coating film waterproofing layer

5: Coating protector (top coating layer) 6: Asphalt adhesive waterproof layer

7: concrete base layer 8: protective mortar, pressed concrete layer

9: asphalt primer 10: release film

11: improved asphalt compounder 12: low weight polyester nonwoven fabric

13: colored yarn

In order to achieve the above object, the present invention is characterized by using an improved waterproof sheet (a) in which the rubberized asphalt waterproof layer (2) is integrally formed on one surface of the high-weight polyester nonwoven fabric (1).

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of the improved waterproof sheet of the present invention, the improved waterproof sheet (a) of the present invention is composed of a high-weight polyester nonwoven fabric (1) and the rubberized asphalt waterproof layer (2) at the bottom, wherein the asphalt coating is a conventional It is deposited on the polyester nonwoven fabric by the sheet manufacturing process, and one of straight asphalt, brown asphalt, and modified asphalt may be used, and a high strength core based polyester nonwoven fabric having a tensile strength of 140 (Kg / in) or higher according to the test method KSK 0520 is used. Since it does not use a separate reinforcing substrate, that is, polyethylene film, release paper and fine yarn (細沙 = colored yarn), it can be produced economically and simply.

The high weight polyester nonwoven fabric 1 applied to the present invention is applied to a high weight nonwoven fabric of 450 to 550 g / m 2 or more, which is higher than the unit weight of 120 to 180 g / m 2 of the low weight nonwoven fabric 12 used in the conventional waterproof sheet. As described above, the high-weight polyester nonwoven fabric 1 having a thickness of 5 mm or more is excellent in strength and weather resistance and excellent in stability even under underground conditions. In addition, it is used for reinforcing the bearing capacity of the soft ground or to prevent inequality, so as to prevent the breakage occurring in the conventional asphalt sheet.

The composite waterproof method using the improved waterproof sheet of the present invention will be described in detail as follows.

First, the primer is applied to the finished base layer, and an organic asphalt adhesive waterproofing layer 6 including bitumen-based asphalt compounder and adhesive components is formed on the bottom layer, and then on the asphalt adhesive waterproofing layer 6 After the rubberized asphalt waterproofing layer (2) adheres to the lower surface the integral waterproof sheet (a) which is integrally formed and adheres the ends between the sheets to be repeatedly bonded, the upper part of the improved waterproof sheet (a) (i.e., poly A mixed reinforcing layer (3) is formed by coating a water-soluble emulsion containing acryl solids (commonly referred to in the industry as mortar performance improvers) and a dilution of inorganic portland cement in an inner layer of an ester nonwoven fabric having a diameter of 5 mm or more. After the step and the applied mixture is cured over a period of time, the joint between the sheets is pressed into a conventional waterproof fiberglass mesh (reinforcing fiber mesh) The adhesive layer is formed by sealing, sealing, and applying a primer on the waterproof layer, and then applying a polyurethane or other elastic coating waterproofing material about once to form a coating waterproof layer (4) and applying a film protective agent (5) to protect the step by step waterproof layer. Characterized in that the implementation.

Hereinafter, the main inter-process action of the construction method using the present invention waterproof sheet. As shown in FIG. 2, first, the bitumen-based asphalt coating material applied between the rubberized asphalt waterproof layer 2 and the concrete foundation layer 7 under the improved waterproof sheet a is a concrete foundation layer 7. ) And the sheet waterproofing layer, that is, the adhesive layer between the rubberized asphalt waterproofing layer (2) can be maintained while maintaining the waterproofing layer in the form of a flexible gel that is not completely hardened regardless of the cracks. Watertightness is secured to the leak-prone areas such as the drain part to form a continuous primary waterproof layer. The bitumen asphalt coating material used in this process may be a conventional asphalt waterproofing material used in the construction of non-exposed asphalt by using asphalt chemical compounds as a main raw material and adding synthetic rubber adhesives and thinners.

The improved waterproof sheet (a) laminated on the bituminous gel-like coating material, which is the second process, can reduce the risk of fire generated during the construction by the thermal method, and has a polyester nonwoven fabric layer having a tensile strength of 140 or more. ) Is used to prevent breakage of the waterproof layer against cracks and flow of the ground surface, and it is used as a heat insulator to form an insulation waterproof layer in combination with the waterproof layer to improve the insulation of the top layer. Let's do it.

A mixed solution of the third process, the acryl polymer emulsion and the inorganic portland cement, is applied to the layer having the pores of the high-weight polyester nonwoven fabric 1 manufactured by the needle punching process (ie, the polyester inner cross-sectional layer having a thickness of 5 mm or more). , The processing process is a heavy weight polyester sheet with excellent mechanical strength, for example, when attempting to solve the problem of cracking of a building by placing a remicon by combining a wire mesh or reinforcing material in a series of concrete castings In combination with the cured mixed reinforcement waterproof layer 3 does not allow the occurrence of minute cracks.

At this time, it is preferable to use a solution in which the acryl polymer emulsion is diluted 48 ± 1% of the acryl solid, but it is also possible to use a mortar improving agent commonly used by the contractors in the art. If a small amount of antifoaming agent is added to minimize the bubbles generated can form a more robust reinforcing layer.

The process of applying elastic polyurethane or water-soluble coating waterproofing material, which is the fourth step, can secure watertightness to the parts indicated as problems in sheet construction such as joints or drains between sheets, and can prevent fine defects generated from joints and the like. Will be.

Finally, the present invention is completed by performing a coating (5) coating process (top coating) on the water-soluble or oil-soluble coating film waterproofing material.

As described above, the improved waterproof sheet of the present invention and the waterproofing method using the same are applied in the same process as the non-exposed waterproofing method (FIG. 3) or the exposure waterproofing method (FIG. 4), but in some cases elastic urethane or water-soluble protecting the waterproofing layer. By replacing the liquid coating waterproofing of the construction can be finished with only minimal construction of the concrete layer (8). In addition, the present invention can be carried out by omitting the construction process of the joint material applied in the crack generation suppression construction surface generated in the pressed concrete layer (8) during sheet waterproofing.

According to the present invention made of the above-described process, each series of waterproofing methods, namely, a series of defect occurrence requirements generated at the time of application of asphalt, sheet, mortar, coating film, that is, irrationality of exposure at the time of asphalt construction, adhesion at the time of sheet construction Problems such as excessive press layer construction due to the problem and its solution, problems such as cracking and mortar lifting during waterproofing of mortar liquid, and lack of waterproof layer protection against heat during simple coating application and cracking during structural flow It can be easily constructed by reinforcing breaks and using polyester fibers produced by recycling PET bottles to help recycle resources. It can solve the supply and demand imbalance of polyester fiber and achieve the waterproofing of the polyester to achieve the perfect waterproofing of the structure.

Claims (4)

At the bottom of the high-weight polyester nonwoven fabric having a thickness of 5 mm or more, a waterproof sheet constituting the water-permeable asphalt waterproof layer is laminated on the primary waterproof layer coated with a bitumen asphalt coating material containing an asphalt compounder and an adhesive to form a secondary waterproof layer. The glass-fiber mesh was pressed and sealed between the sheets of the tertiary waterproof layer formed through the curing period by applying a mixed solution of an acrylic polymer emulsion and an inorganic portland cement diluted into a polyester-improved sheet fiber layer having a diameter of 5 mm or more. After the step of applying a water-soluble or oil-soluble elastic film waterproofing agent and a coating film protective agent on the third waterproof layer step by step to protect each waterproof layer, the waterproof construction method The waterproof sheet is waterproof, characterized in that any one of a straight asphalt, blown asphalt or improved asphalt compound having an impermeability to any one surface of the polyester nonwoven fabric of at least 5mm thickness is molded and manufactured to a constant thickness Sheet The waterproof sheet according to claim 1, wherein the high-weight polyester nonwoven fabric, which is the center substrate of the waterproof sheet, is manufactured by needle punching any one of polyester short fibers or long fibers (NEEDLE-PUNCHING). The method of claim 1, wherein the mixed solution of the acrylic polymer emulsion and the inorganic portland cement is applied to the porous layer inside the polyester nonwoven fabric, and at least one primer, polyurethane, and other oil-soluble or water-soluble compounds are applied to the cured base layer after precipitation. Waterproof construction method characterized in that to sequentially process the coating film waterproof material