KR20000024389A - A complex method for water resistant of concrete structure - Google Patents
A complex method for water resistant of concrete structure Download PDFInfo
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- KR20000024389A KR20000024389A KR1020000006368A KR20000006368A KR20000024389A KR 20000024389 A KR20000024389 A KR 20000024389A KR 1020000006368 A KR1020000006368 A KR 1020000006368A KR 20000006368 A KR20000006368 A KR 20000006368A KR 20000024389 A KR20000024389 A KR 20000024389A
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- waterproof
- concrete structure
- waterproofing
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- concrete
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
- E04B1/644—Damp-proof courses
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
Abstract
Description
본 발명은 콘크리트 구조물의 복합 방수공법에 관한 것으로, 콘크리트 구조물 자체에 침투방수제를 침투시키는 침투방수단계와, 침투방수가 이루어진 콘크리트 구조물 위에 아스팔트계 방수시트를 고무화 아스팔트계의 도막제를 프라이머 대용으로 이용하여 완전접착시키는 단계를 포함하여 이루어져, 콘크리트 구조물의 내부에 형성되는 침투방수층, 이 침투방수층 위에 형성되는 도막방수층 및 이 도막방수층 위에 접착되는 방수시트층의 3중 방수층이 콘크리트 구조물의 완벽한 방수성을 확보해 줄 수 있도록 한 것이다.The present invention relates to a composite waterproofing method of a concrete structure, the waterproofing step of infiltrating the waterproofing agent into the concrete structure itself, and the asphalt-based waterproof sheet on the concrete structure consisting of waterproofing waterproofing as a substitute for the rubber coating asphalt-based coating agent as a primer It comprises a step of completely bonding using, the triple waterproof layer of the penetration waterproof layer formed in the interior of the concrete structure, the coating film waterproof layer formed on the penetration waterproof layer and the waterproof sheet layer bonded on the film waterproof layer is the perfect waterproofness of the concrete structure It is to be secured.
건축 및 토목 구조물 등의 외벽방수 또는 옥상방수 등 각종 콘크리트 구조물의 방수를 위한 종래의 공법으로는 아스팔트 방수, 시트 방수, 도막계 방수, 시멘트 액체방수, 침투방수 등이 있는데, 규모가 작고 짧은 단면을 방수할 때는 시멘트 액체방수가 효과적이지만 대형 구조물 및 장 스판(span)은 구조물의 크랙(crack; 균열)이 발생하면 방수층도 함께 파손되어 방수하자의 원인이 되므로 신축성이 있는 제품을 사용하는 것이 바람직하다.Conventional methods for waterproofing various concrete structures such as waterproofing of roofs or roofs of building and civil engineering structures include asphalt waterproofing, sheet waterproofing, waterproofing of coating system, cement liquid waterproofing, and penetration waterproofing. Cement liquid waterproofing is effective when waterproofing. However, it is preferable to use a flexible product because large structures and spans can cause cracks due to damage of the waterproofing layer when cracks occur. .
한편, 아스팔트 시트 방수공법은 일반적으로 사용되고 있는 방수공법인데, 이는 도 1에 도시한 바와 같이 방수시트층(a)의 일부가 파손되면 프라이머를 아무리 잘 도포했어도 이 파손부위(a1)를 통해 유입된 습기가 방수시트층(a) 밑으로 습기가 스며들게 되어 물기가 균열이 생긴 취약한 부분(b1)으로 흘러나오게 되고 콘크리트 구조물(b)자체에 존재하는 공극(모세관)으로 스며 전제적으로 젖어들게 된다.On the other hand, asphalt sheet waterproof method is a waterproof method that is generally used, as shown in Figure 1, if a part of the waterproof sheet layer (a) is broken, no matter how well the primer is applied through this damaged site (a1) Moisture penetrates under the waterproof sheet layer (a), causing water to flow into the vulnerable part (b1) where cracks are formed, and seep into the voids (capillaries) present in the concrete structure (b) itself and are completely wetted.
한편, 도면중 미설명부호 c는 보호몰탈이고, d1,d2는 누수상태를 의미한다.In the drawings, reference numeral c denotes a protective mortar, and d1 and d2 denote leak states.
콘크리트 수분건조율이 7~8%이하의 상태에서 프라이머를 도포하였을 경우에는 콘크리트 위에 도포만 되었을 뿐, 모체인 콘크리트층에 침투력이 없기 때문에 습기가 스며들게 되면 사실상 하자의 원인이 된다. 토치공법이나 자착식에 의한 시트 접착방법으로 방수시트를 콘크리트위에 100%완전 접착시키는 것은 현실적으로 불가능하다, 이로 인하여 콘크리트면과 방수시트사이에 존재하는 공기 및 습기가 햇빛을 받게 되면, 그 사이의 공기가 팽창하여 기포현상이 생기고 방수층(시트)과 콘크리트 구조물이 분리되는 현상을 나타내므로 어느 한 곳이라도 하자가 있을 경우 전체적인 문제가 될 수 밖에 없는 실정이다.When the primer is applied in a state where the moisture content of the concrete is less than 7-8%, it is only applied on the concrete, and since moisture does not penetrate into the parent concrete layer, it actually causes defects. It is practically impossible to completely adhere the waterproof sheet to concrete 100% by the torch method or by the self-adhesive sheet bonding method. As a result, when air and moisture existing between the concrete surface and the waterproof sheet are exposed to sunlight, the air between them is The expansion of the bubble occurs and the waterproof layer (seat) and the concrete structure is a phenomenon that shows a phenomenon that there is no problem in the overall problem if there is any place.
본 발명은 상기한 종래 방수공법의 하자를 해소하기 위하여 안출된 것으로, 콘크리트 구조물에 크랙(균열)이 발생하더라도 상부의 방수층이 파손되지 않고, 반대로 상부의 방수층이 파손되더라도 하부의 콘크리트 구조물에 균열만 없다면 완전한 방수성을 확보할 수 있도록 함으로써 완벽한 방수성의 유지가 가능한 복합적인 방수공법을 제공하는데 있다.The present invention is devised to solve the above-described defects of the conventional waterproof method, even if a crack (crack) occurs in the concrete structure, the upper waterproof layer is not broken, on the contrary, even if the upper waterproof layer is damaged, only the crack in the lower concrete structure If not, it is to provide a complex waterproofing method that can maintain perfect waterproofness by ensuring complete waterproofness.
본 발명은 또한 가열토치를 비롯한 별도의 장비나 보조기구 없이도 신속·간편하게 시공이 가능한 방수공법을 제공하는데 있다.The present invention also provides a waterproof method that can be quickly and easily installed without any additional equipment or auxiliary devices, including a heating torch.
이와 같은 목적을 달성하기 위하여 본 발명은, 침투방수제를 콘크리트 면에 도포하여 콘크리트 자체의 공극(모세관)에 방수제를 침투시켜 콘크리트 자체에 방수층을 형성시킴과 아울러 콘크리트 구조물 표면층의 압축강도를 증가시키는 단계; 침투방수층이 형성된 콘크리트 표면이 경화되고 난 후, 그 위에 방수성 및 고접착력을 갖는 고무화 아스팔트계의 도막제를 일정두께로 도포하여 방수시트를 밀착시키는 단계를 포함하여 이루어지며, 방수시트가 겹치는 부분은 최소 100㎜이상 중첩되도록 하고 도막제에 의해 방수시트간의 완벽한 접착이 이루어지도록 한 침투방수공법 + 도막방수공법 + 시트방수공법의 복합 방수공법을 제공한다.In order to achieve the above object, the present invention, by applying a penetration waterproofing agent to the concrete surface to penetrate the waterproofing agent into the pores (capillaries) of the concrete itself to form a waterproofing layer on the concrete itself and to increase the compressive strength of the surface layer of the concrete structure. ; After hardening the concrete surface on which the penetration waterproofing layer is formed, a step of applying a rubberized asphalt coating agent having a waterproof and high adhesive strength to a certain thickness thereon, the step of contacting the waterproof sheet, the overlapping portion of the waterproof sheet Is provided with a composite waterproofing method of penetration waterproofing method + coating waterproofing method + sheet waterproofing method so that at least 100㎜ overlap and perfect adhesion between waterproof sheets by coating agent.
바람직하기로는 상기 침투방수층은 2~3㎜내외, 도막방수층은 2㎜내외, 방수시트는 3㎜를 형성함으로써 총 방수두께가 7㎜가 되도록 한다.Preferably, the penetration waterproof layer is about 2 to 3 mm, the coating film waterproof layer is about 2 mm, and the waterproof sheet is 3 mm so that the total waterproof thickness is 7 mm.
본 발명에 의한 복합 방수공법에 있어서, 상기 방수시트의 하면에는 미세한 메시(mesh)를 갖는 규사(모래)를 부착시켜 도막제가 규사 사이로 침투되어 규사가 도막제에 박히도록 함으로써 방수시트와 접착제 역할을 하는 도막제사이의 접착면적 극대화를 도모하고, 규사에 의한 입체적인 접착이 이루어지도록 하여 방수시트의 들뜸현상을 방지할 수 있도록 한다.In the composite waterproofing method according to the present invention, by attaching a silica (sand) having a fine mesh (sand) to the lower surface of the waterproof sheet, the coating agent penetrates between the silica sand so that the silica sand is embedded in the coating film serves as a waterproof sheet and an adhesive. In order to maximize the adhesion area between the coating agent to the three-dimensional adhesion by the silica sand to prevent the lifting phenomenon of the waterproof sheet.
본 발명의 복합 방수공법에서 접착제로 사용되는 프라이머 대용의 도막제는 고무화 아스팔트계의 프라이머로서 자체가 방수층을 형성함과 아울러 방수시트를 접착시키는데 사용되는 것으로, 이는 고형제(M 타입)를 액상으로 가열 용융시켜 사용하거나 또는 주재와 경화재가 분리된 2액형(RF 타입)을 서로 혼합한 후 가열시켜 사용할 수도 있다.The coating agent substitute for the primer used as the adhesive in the composite waterproofing method of the present invention is a rubberized asphalt primer used to form a waterproof layer and to adhere the waterproof sheet, which is a solid (M type) liquid It may be used by heating and melting, or two-component type (RF type) in which the main material and the hardening material are separated, may be mixed with each other, and then heated.
본 발명의 복합 방수공법에서 고형제(M 타입)를 도막제로 사용하는 경우에는 이를 180~200℃ 정도로 가열 용융시켜서 침투방수층이 형성된 콘크리트 표면위에 도포하면서 양면에 PEP필름 양면타입(통칭, 토치식 시트)을 시공하여도 좋다. 이때 용융액이 필름에 닿으면 뜨거운 열에 의하여 필름이 녹으면서 접착이 잘 이루어진다.In case of using the solid agent (type M) as a coating agent in the composite waterproofing method of the present invention, PEP film double-sided type (common name, torch type sheet) on both sides while heat-melting it to about 180 ~ 200 ℃ by coating on the concrete surface formed with the penetration waterproof layer ) May be installed. At this time, when the melt touches the film, the film melts by hot heat, and adhesion is performed well.
도 1은 종래 시트공법의 방수하자 상태를 도시한 단면도,1 is a cross-sectional view showing a waterproof defect state of the conventional sheet method;
도 2는 본 발명에 의한 복합 방수공법의 작업공정도,2 is a work process of the composite waterproof method according to the present invention,
도 3은 본 발명에 의한 복합 방수공법이 사용된 콘크리트 구조물의 단면도,3 is a cross-sectional view of a concrete structure using a composite waterproofing method according to the present invention,
도 4는 본 발명에 사용되는 방수시트의 적층구조를 도시한 사시도,Figure 4 is a perspective view showing a laminated structure of the waterproof sheet used in the present invention,
도 5는 본 발명의 작업상태를 개략적으로 도시한 평면도이다.5 is a plan view schematically showing a working state of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 콘크리트 구조물 2 : 침투방수층1: concrete structure 2: penetration waterproof layer
3 : 도막방수층 4 : 방수시트(층)3: waterproof film 4: waterproof sheet (layer)
4a : 중심기재 4b,4c : 고무화 아스팔트4a: center base material 4b, 4c: rubberized asphalt
4d : PE필름 4e : 규사4d: PE film 4e: silica sand
이하, 본 발명의 바람직한 실시예를 첨부된 도면에 의하여 상세히 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 2는 본 발명에 의한 복합 방수공법의 시공과정을 도시한 것으로, 콘크리트 구조물의 표면에 붙어있는 각종 먼지나 이물질을 제거하는 전처리단계(S1),Figure 2 shows the construction process of the composite waterproofing method according to the present invention, a pretreatment step (S1) for removing various dust or foreign matter adhering to the surface of the concrete structure,
이물질이 제거된 콘크리트 구조물 표면 위에 침투방수제를 로울러 및 스프레이 등으로 도포하여 침투방수제가 콘크리트 구조물 자체의 모세관(공극)내부로 충분히 스며들게 하여 콘크리트 구조물 내부에 침투방수층을 형성시키는 침투방수층 형성단계(S2),Penetration waterproofing layer forming step (S2) by applying the penetration waterproofing agent by roller or spray on the surface of the concrete structure from which foreign substances have been removed, so that the penetration waterproofing agent sufficiently penetrates into the capillary tube (pore) of the concrete structure itself (S2). ,
콘크리트 구조물 내부로 침투된 침투방수제가 시간경과에 의해 자연적으로 건조,경화되도록 하는 침투방수층 경화단계(S3),Penetration waterproofing layer curing step (S3) to allow the penetration waterproofing agent penetrated into the concrete structure to naturally dry and harden over time,
침투방수제가 경화된 콘크리트 구조물 위에 도막제를 도포하고 그 위에 롤 상태의 방수시트를 펼치면서 접착시키는 방수시트 접착단계(S4),Waterproofing sheet bonding step (S4) for applying a coating film on the concrete structure, the penetration waterproofing agent is cured, and spreading and spreading the waterproof sheet in a roll state thereon,
상기 방수시트(4)위에 보호몰탈층을 타설하는 단계(S5)를 포함한다.A step (S5) of pouring a protective mortar layer on the waterproof sheet (4).
도 3은 본 발명의 복합 방수공법이 사용된 콘크리트 구조물의 단면을 도시한 것으로, 하부로부터 콘크리트 구조물(1), 이 콘크리트 구조물(1)내측 상부에 형성된 침투방수층(2), 이 침투방수층(2)위에 도포된 도막방수층(3), 이 도막방수층(3)위에 접착된 방수시트층(4)을 형성하고 있으며, 이 방수시트층(4)위에는 보호몰탈층(5)이 소정의 두께로 타설된다.3 is a cross-sectional view of a concrete structure using the composite waterproofing method of the present invention, the concrete structure (1) from the bottom, the penetration waterproof layer (2) formed on the upper inside of the concrete structure (1), the penetration waterproof layer (2) (2) and a waterproof sheet layer (4) adhered to the coating layer (3). A protective mortar layer (5) is placed on the waterproof sheet layer (4) to a predetermined thickness. do.
상기 침투방수층(2)을 형성하는 침투방수제는 폴리알킬렌글리콜(제품명; KONIX PP-1000), 크실렌(제품명; Mixed-XYLENE), 방향족 이소시아네이트(제품명; TDI-80%), 메틸에틸케톤, 트라이메틸롤프로페니(제품명; T.M.P), 그리고 지방족 수산화물인 1.3부탄디올(제품명; 1.3BG)이 폴리우레탄계의 프라이머로서, 본 발명에서는 발명자가 자체 제조한 것(혼합비는 상기한 기재순서대로 각각 14.72 : 47.5 : 21.58 : 4.9 : 4 : 1.34의 중량%)을 사용하였으며 이의 제조공정을 간략하게 설명하면 다음과 같다.The permeation waterproofing agent forming the permeation waterproofing layer 2 is polyalkylene glycol (product name; KONIX PP-1000), xylene (product name; Mixed-XYLENE), aromatic isocyanate (product name; TDI-80%), methyl ethyl ketone, tri Methylolpropene (product name; TMP) and the aliphatic hydroxide 1.3 butanediol (product name; 1.3BG) are polyurethane-based primers, and in the present invention, those produced by the inventors (mixing ratios are 14.72: 47.5, respectively, in the order described above). : 21.58: 4.9: 4: 1.34% by weight) and the manufacturing process thereof is briefly described as follows.
먼저, 폴리우레탄수지의 원료로 사용되는 액상의 폴리알킬렌글리콜에 분말상태의 지방족수산기인 트라이메틸롤프로페니를 혼합하여 80℃내외의 온도로 가열하여 용해시키는 1차반응공정을 거친 후 완전용해되었을 때 40℃이하로 냉각시킨다. 여기에 크실렌·메틸에틸케톤·1.3부탄디올을 넣고 혼합하여 pH가 5.0~5.5가 되도록 반응시킨다. 그 다음, 방향족 이소시아네이트를 넣고 65℃정도로 가열하여 수지분자량과 점도가 적정한지를 체크한 후 40℃냉각시켜서 제조된다.First, the mixture is mixed with liquid polyalkylene glycol, which is used as a raw material of polyurethane resin, and trimethylolpropane, which is a powdered aliphatic hydroxyl group, is heated to a temperature of about 80 ° C and dissolved, followed by complete dissolution. When it cools to below 40 ℃. Xylene, methyl ethyl ketone, and 1.3 butanediol are added thereto, and the mixture is allowed to react so as to have a pH of 5.0 to 5.5. Then, aromatic isocyanate is added and heated to about 65 ° C. to check whether the resin molecular weight and viscosity are appropriate, followed by cooling to 40 ° C. to prepare.
본 발명의 시공방법에서 상기 침투방수층을 형성하는 침투방수제는 본 발명자가 자체 제조한 상기 조성물에만 한정되는 것은 아니며, 콘크리트의 공극에 침투력을 갖는 폴리우레탄계의 프라이머이면 대체로 사용가능하다.In the construction method of the present invention, the penetration waterproofing agent forming the penetration waterproofing layer is not limited to the composition prepared by the present inventors, and may be generally used as long as it is a polyurethane-based primer having a penetration force in the pores of concrete.
상기 침투방수층(2)은 최소 2~3㎜의 두께가 형성되도록 함으로써 콘크리트 구조물(1)의 표면이 발수성(發水性)을 갖도록 함과 동시에 콘크리트 자체의 모세관 (공극)내부로 유기질의 방수제가 스며들어 경화됨으로써 콘크리트 구조물(1)표면의 압축강도를 향상시킬 수 있게 된다.The penetration waterproof layer 2 is formed to have a thickness of at least 2 ~ 3㎜ to make the surface of the concrete structure (1) to have a water repellent (性 水性) and at the same time organic waterproofing agent soaks into the capillary (pores) of the concrete itself By hardening, for example, the compressive strength of the surface of the concrete structure 1 can be improved.
상기 도막방수층(3)을 형성하는 접착제는 고무화 아스팔트계의 접착제로서 자체가 방수성을 갖음과 아울러 고접착성을 갖는 것으로, As-Bond(ASTM D-41)또는 동등 품질 이상의 프라이머를 사용한다.The adhesive forming the coating waterproof layer 3 is a rubberized asphalt-based adhesive, which itself has waterproofness and high adhesiveness. As-Bond (ASTM D-41) or a primer of equivalent quality or higher is used.
본 발명의 방수공법에 사용되는 방수시트(4)는 도 4에 도시한 바와 같이 폴리프로필렌 직포로 이루어진 중심기재(4a)의 상하부에 고무화 아스팔트(4b,4c; 스틸렌 부타디엔 스틸렌 개량아스팔트(약칭, SBS개량아스팔트)를 일정두께로 코팅하고 상부의 고무화 아스팔트(4b)위에는 PE필름(4d)을, 하부의 고무화 아스팔트(4c)아래에는 가는 규사(모래;4e)를 부착시킨 것으로, 이 규사는 도막방수층(3)과의 접착면적을 극대화시키고 입체적인 접착이 이루어져 방수시트(4)의 접착강도를 높일 수 있게 된다.Waterproofing sheet 4 used in the waterproofing method of the present invention is the rubberized asphalt (4b, 4c; styrene butadiene styrene improved asphalt (abbreviated, SBS modified asphalt) was coated to a certain thickness, PE film 4d was attached on the upper rubberized asphalt 4b, and fine silica sand (sand 4e) was attached to the lower rubberized asphalt 4c. Maximizes the adhesive area with the coating waterproof layer (3) and can be made three-dimensional adhesion to increase the adhesive strength of the waterproof sheet (4).
도 5는 본 발명의 작업상태를 도시한 평면도로서, 콘크리트 구조물(1)표면 상에 침투방수제를 도포한 후 3~4시간이 경과하면 침투방수제가 건조,경화되게 되며, 그 위에 방수시트(4)를 접착하는 과정을 도시한 것으로, 작업을 요하는 콘크리트 구조물(1)표면의 일측으로부터 롤(roll)상태의 방수시트(4)를 펼치면서 접착작업을 하게 되는데, 이때 접착제로 사용되는 도막제를 부어 2㎜내외의 도막두께가 형성되도록 펼쳐주면서 그 위에 방수시트(4)를 밀어 붙이면 방수시트(4)하면의 규사(4e)가 콘크리트 구조물(1)바닥위에 도포된 도막방수층(3)과 접착되어 방수시트 (4)와 도막방수층(3)사이의 공간이 밀착되면서 접착되는 것이며, 이때 도막제는 방수시트(4)에 의해 밀려 전방으로 펼쳐짐과 동시에 방수시트(4)의 양측으로 밀려나와 먼저 콘크리트 구조물(1)바닥에 접착된 방수시트(4)의 상부로 밀려나오게 되어 방수시트(4)간의 중첩부(F)도 접착제에 의해 완벽한 접착이 이루어져 물이 침투할 수 없게 되는 것이고, 방수시트(4)의 측부로 밀려나온 도막제는 고무손으로 긁어서 제거한다.5 is a plan view showing the working state of the present invention, after 3 to 4 hours after the application of the penetration waterproofing agent on the surface of the concrete structure 1, the penetration waterproofing agent is dried and cured, the waterproof sheet (4) ) Shows the process of gluing, and the adhesive work is performed by unfolding the waterproof sheet (4) in a roll state from one side of the surface of the concrete structure (1) that requires work, wherein the coating agent used as the adhesive Pour and spread the film thickness of about 2mm to form a film on the waterproof sheet (4) is pushed on it, the silica sand (4e) on the bottom of the waterproof sheet (4) adheres to the coating film waterproof layer (3) applied on the floor of the concrete structure (1) The space between the waterproof sheet (4) and the waterproof film (3) is in close contact with each other, and the coating agent is pushed by the waterproof sheet (4) and spread out to the front and simultaneously pushed out to both sides of the waterproof sheet (4) Concrete Structure (1) It is pushed to the upper part of the waterproof sheet 4 to be bonded, and the overlapping portion F between the waterproof sheets 4 is also completely adhered by the adhesive so that water cannot penetrate, and is pushed to the side of the waterproof sheet 4. Remove the coating film by scraping it with rubber hands.
이상 설명한 바와 같이 본 발명의 복합 방수공법은 먼저 콘크리트 구조물 자체에 침투방수제를 도포하여 콘크리트 구조물 내부에 침투방수층을 형성하고, 그 위에 도막제를 사용하여 방수시트를 완전 밀접착시키는 단계를 거쳐 콘크리트 내부의 침투방수층, 이 침투방수층 위에 도포된 도막제에 의한 도막방수층, 이 도막방수층 위에 밀접착되는 방수시트층의 3중 방수층이 형성되는 것이며, 본 발명에 의하면 콘크리트층에 형성된 침투방수층에 의해 습기의 유동성이 차단되어 방수시트층이 일부분 파손되더라도 침투방수층에 의해 수분이 그 부분외로 번져나가는 것을 방지할 수 있게 되는 것이며, 침투방수층과 방수시트사이는 완전히 밀착되어 시공후 햇빛 등의 열을 받더라도 내부에 공기나 수분이 남아있지 않으므로 서로 떨어지게 되는 현상이 발생하지 않아 습기가 스며들 염려가 전혀 없으며, 콘크리트 구조물에 균열이 발생하더라도 도막방수층과 방수시트는 자체의 신장특성에 의해 늘어나게 되므로 방수성이 확보되어 물이 새어들 염려가 없게 되는 것이고, 본 발명의 복합 방수공법은 별도의 보조기구를 사용하지 않으므로 그 시공이 용이하여 간편하고 신속하게 저렴한 비용으로 각종 콘크리트 구조물의 방수시공을 할 수 있는 효과를 갖는다.As described above, the composite waterproofing method of the present invention first applies a penetration waterproofing agent to the concrete structure itself to form a penetration waterproofing layer inside the concrete structure, and then through the step of completely adhering the waterproof sheet using the coating agent thereon, the concrete interior The triple waterproof layer of the waterproof layer of permeation, the waterproof layer of the coating film applied by the coating agent applied on the waterproof layer, and the waterproof sheet layer closely adhered to the waterproof layer of the film is formed. Even if the waterproof sheet is partially damaged due to the fluidity being blocked, it is possible to prevent the moisture from spreading out of the portion by the infiltration waterproof layer, and the inside of the waterproof sheet and the waterproof sheet are completely in contact with each other even after receiving heat such as sunlight after construction. Since there is no air or moisture remaining, There is no fear of seeping moisture because it is not raw, and even if a crack occurs in the concrete structure, the waterproofing layer and the waterproof sheet are stretched by their elongation characteristics, so that the waterproofness is ensured so that there is no fear of water leakage. Since the composite waterproofing method does not use a separate auxiliary device, the construction is easy, and thus the waterproofing of various concrete structures can be easily and quickly performed at low cost.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20020076214A (en) * | 2002-09-05 | 2002-10-09 | 주식회사 대아화학 | A process for waterproofing surface of concrete bridges |
| KR100360747B1 (en) * | 2000-03-02 | 2002-11-13 | 중앙방수기업주식회사 | Water-proofing method using modified urethane-asphalt water-proof material |
| KR100711107B1 (en) * | 2003-06-11 | 2007-04-24 | 이대우 | Construction method of exposure composite waterproof structure |
| KR100769229B1 (en) * | 2006-12-29 | 2007-10-22 | 주식회사 큐맥스 | Process for waterproofing surface of bridges |
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| KR101028953B1 (en) * | 2010-04-07 | 2011-04-12 | (주)동명기술공단종합건축사사무소 | Complex water proof treatment construction methode using surface treatment and water proof sheet and water proof structure and composite thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100360747B1 (en) * | 2000-03-02 | 2002-11-13 | 중앙방수기업주식회사 | Water-proofing method using modified urethane-asphalt water-proof material |
| KR20020076214A (en) * | 2002-09-05 | 2002-10-09 | 주식회사 대아화학 | A process for waterproofing surface of concrete bridges |
| KR100711107B1 (en) * | 2003-06-11 | 2007-04-24 | 이대우 | Construction method of exposure composite waterproof structure |
| KR100769229B1 (en) * | 2006-12-29 | 2007-10-22 | 주식회사 큐맥스 | Process for waterproofing surface of bridges |
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