KR100342539B1 - Multi-layer composite waterproof construction method - Google Patents

Multi-layer composite waterproof construction method Download PDF

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Publication number
KR100342539B1
KR100342539B1 KR1019980058161A KR19980058161A KR100342539B1 KR 100342539 B1 KR100342539 B1 KR 100342539B1 KR 1019980058161 A KR1019980058161 A KR 1019980058161A KR 19980058161 A KR19980058161 A KR 19980058161A KR 100342539 B1 KR100342539 B1 KR 100342539B1
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weight
parts
asphalt coating
rubberized
construction method
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KR1019980058161A
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Korean (ko)
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KR20000042082A (en
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이봉찬
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네오건설 주식회사
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0001—Rubbers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0051—Including fibers
    • E02D2300/0054—Including fibers made from plastic
    • E02D2300/0057—PE
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0085—Geotextiles
    • E02D2300/0089—Geotextiles non-woven

Abstract

시공면에 아스팔트와 합성고무 및 기타첨가제를 혼합하여 제조한 고무화 아스팔트 도막제를 도포한 후 고무화 아스팔트 도막제로 제조한 방수시트를 적층시킴을 특징으로 하는 다층 복합형 방수 시공방법으로 시공시 고무화 아스팔트층과 방수시트 사이에 PE필름 또는 부직포를 더 적층시킬 수도 있다.Apply rubberized asphalt coating agent prepared by mixing asphalt, synthetic rubber and other additives on the construction surface, and then laminate the waterproof sheet made of rubberized asphalt coating agent. A PE film or nonwoven may be further laminated between the asphalted layer and the waterproof sheet.

이와같은 본 발명에 의하면 장기간 경과 후에도 균열이 발생하지 않고, 모서리 부위, 요철부위에서의 들뜸 현상이 발생하지 않으며 연결부위에서의 접착성도 우수하여 탁월한 방수효과를 나타낸다.According to the present invention, cracks do not occur even after a long period of time, and no lifting occurs at corners and uneven portions, and the adhesiveness is excellent at the connection portion, thereby showing an excellent waterproof effect.

Description

다층 복합형 방수 시공방법Multi-layered composite waterproof construction method

본 발명은 종래 방수시트의 단점인 방수층의 파단, 접합부의 결함, 코너 부위 들뜸 현상, 자외선에 의한 내구성 부족 등을 개선 보완하고 건축, 토목 전분야에 걸쳐 적용할 수 있으며, 각종 건축 구조물의 요구 조건에 맞추어 시공이 가능한 다층 복합형 방수 시공방법에 관한 것이다.The present invention improves and complements the disadvantages of the conventional waterproof sheet, such as breakage of the waterproof layer, defects in the joints, lifting of corners, lack of durability due to ultraviolet rays, and can be applied to all areas of construction and civil engineering. It relates to a multi-layer composite waterproof construction method that can be constructed in accordance with.

종래의 시트방수재는 품질이 낮고, 한겹 시공에 따른 접합 부위에서 누수되는 결점이 있으며,Conventional sheet waterproofing material is low in quality, there is a drawback of water leakage at the joint site according to the single layer construction,

합성수지계 시트는 경질성으로 충격 흡수력이 약하여 장시간 사용에 따라 균열이 발생되고, 또한 시공시 자체 접착력이 없어 시트 바닥부 및 연결부 전체를 접착제를 사용 시공하거나, 접합 부위를 열융착해야 하므로 일부 토목공사에만 제한적으로 사용되었으며,Since synthetic resin sheets are hard and have low impact absorption, cracks occur with prolonged use, and there is no self-adhesive force when constructing them. Limited use only on

재생 폴리우레탄 시트는 굽힘 성능이 부족하여 모서리 부위, 요철부위, 수직부가 시간이 지남에 따라 들뜸 현상이 발생되고 열풍 융착에 따른 연결 부위가 취약하다는 점과 방수 접착조성물과 폴리우레탄과의 접합 점착이 어렵고, 중간 부직포 함침, 포화형 다층박 적층 시트 방수재는 표면 용융 접착시 코팅부가 전부 용융유실되어 부직포끼리 접합되는 사례가 발생되어 접합부 하자가 발생되며, 구조물 시공시 부위별, 용도별로 서로 다른 물성의 방수 시트제를 선택해야 하고 한가지 시트만으로는 시공할 수 없는 결점이 있었다.The regenerated polyurethane sheet lacks the bending performance, so that the edge part, the uneven part, and the vertical part are lifted over time, and the connection part due to hot air welding is weak, and the adhesive adhesion between the waterproof adhesive composition and the polyurethane is poor. Difficult, impregnated intermediate non-woven fabric, saturated multi-layer foil laminated sheet waterproofing material is the case that the coating parts are all melted and lost when bonding the surface of the non-woven fabric bonded to each other, resulting in joint defects, and when the construction of the structure, the different physical properties It was necessary to choose a waterproof sheet, and there was a defect that only one sheet could not be constructed.

본 발명은 종래 방수 시트의 단점인 방수층의 파단, 접합부의 결함, 코너 및 접합 부위 들뜸 현상, 자외선에 의한 내구성 부족 등을 개선, 보완하고 건축, 토목전 분야에 걸쳐 적용할 수 있으며, 각종 건축 구조물의 요구 조건에 맞추어 시공이 가능한 다층 복합형 방수 시공 방법을 제공함에 있다.The present invention improves and complements the disadvantages of the conventional waterproof sheet, such as breakage of the waterproof layer, defects in the joints, lifting of corners and joints, lack of durability due to ultraviolet rays, and can be applied throughout the construction and civil engineering fields. To provide a multi-layer composite waterproof construction method that can be installed according to the requirements of the.

상기와 같은 종래 시트 방수제의 문제점을 해결하기 위하여 연구를 거듭한 결과 도막 방수제를 시공 후 방수시트를 시공하여 상기한 종래 방수재의 결점을 완전히 해결할 수 있음을 알아 본 발명을 완성하게 되었다.As a result of repeated studies to solve the problems of the conventional sheet waterproofing agent, the present invention has been found to be able to completely solve the drawbacks of the conventional waterproofing material by constructing a waterproof sheet after the coating film waterproofing agent.

본 발명은 건축, 토목 및 각종 구조물 바탕(콘크리트, 철조 콘크리트, 철골 콘크리트, ALC, 목조, 석재, 철구조, 스텐레스스틸)의 옥상 방수, 지하 구조물 및 기타 방수 공사에 사용하는 다층 복합형 도막 시트 시공방법에 관한 것으로 구체적으로는 고무화 아스팔트 도막 방수층 위에 방수 시트를 적층 시공하는 방법에 관한 것이다.The present invention is the construction of a multi-layer composite coating sheet used for roofing waterproofing, underground structures and other waterproofing constructions of civil engineering and various structures (concrete, steel concrete, steel concrete, ALC, wood, stone, steel structure, stainless steel) The present invention relates to a method of laminating a waterproof sheet on a rubberized asphalt coating waterproofing layer.

이하에서 본 발명에서 사용하는 고무화 아스팔트 도막제 및 다층 시공방법에 대하여 설명한다.Hereinafter, the rubberized asphalt coating agent and the multilayer construction method used in the present invention will be described.

1. 고무화 아스팔트 도막제 제조방법(열 공법)1. Manufacturing method of rubberized asphalt coating film (thermal method)

1) 침입도 85∼100의 아스팔트(스트레이트 아스팔트) 40∼50 중량부와 침입도 10∼20의 브로운아스팔트 15∼20 중량부를 120∼170℃에서 용융 혼합한다.1) 40 to 50 parts by weight of asphalt (straight asphalt) having a penetration of 85 to 100 and 15 to 20 parts by weight of blow asphalt having a penetration of 10 to 20 are melt mixed at 120 to 170 ° C.

2) 스틸렌 부타디엔 스틸렌(SBS) 합성고무 10∼15 중량부와 나프텐계 오일 10∼15 중량부 충전제(CaCO3) 8∼10 중량부, 석유 수지 5∼8 중량부를 150∼170℃에서 가열 교반 혼합한다.2) 10-15 parts by weight of styrene butadiene styrene (SBS) synthetic rubber, 10-15 parts by weight of naphthenic oil, 8-10 parts by weight of filler (CaCO 3 ), and 5-8 parts by weight of petroleum resin at 150-170 ° C. do.

3) 1)과 2) 혼합물을 150∼170℃에서 혼합한 후 1∼2시간 숙성시켜 140℃에서 고무화 아스팔트 도막 방수제를 제조하였다.3) The mixture of 1) and 2) was mixed at 150 to 170 ° C. and aged for 1 to 2 hours to prepare a rubberized asphalt coating waterproofing agent at 140 ° C.

2. 고무화 아스팔트 도막제 제조방법(냉 공법)2. Rubberized asphalt coating material manufacturing method (cold method)

1) 침입도 85∼100의 아스팔트(스트레이트 아스팔트) 60∼70 중량부를 150℃로 용융한 후 110∼120℃에서 숙성한다.1) 60 to 70 parts by weight of 85 to 100 asphalt (straight asphalt) having a penetration degree is melted at 150 ° C and aged at 110 to 120 ° C.

2) 스틸렌 부타디엔 스틸렌 합성고무 라텍스 30∼35 중량부와 유화제, 소포제, 점도 조절제 각각 0.5∼1 중량부, 물 3∼5 중량부를 35∼45℃에서 가열교반 혼합한다.2) 30 to 35 parts by weight of styrene butadiene styrene synthetic rubber latex, 0.5 to 1 part by weight of an emulsifier, an antifoaming agent and a viscosity modifier, and 3 to 5 parts by weight of water are mixed at 35 to 45 ° C under stirring.

3) 1)을 4∼5시간 숙성시켜 110∼120℃에서 2)의 혼합물에 서서히 투입시키면서 교반한다. 이때 혼합물의 온도가 85℃ 이상되지 않게 하여야 하며 혼합이 끝난 후 30∼40℃로 급냉각시켜 고무화 아스팔트 도막 방수제를 제조하였다.3) 1) is aged for 4 to 5 hours and stirred at 110 to 120 ° C while slowly adding to the mixture of 2). At this time, the temperature of the mixture should not be more than 85 ℃ and after the end of mixing was rapidly cooled to 30 ~ 40 ℃ to prepare a rubberized asphalt coating waterproofing agent.

3. 방수시트 제조방법.3. Manufacturing method of waterproof sheet.

1) 상기 1에서 제조한 고무화 아스팔트 도막제를 10∼15시간 숙성시켜 100∼120℃에서 이형지 상에 도포한 후 냉각하여 방수시트를 제조하였다.1) The rubberized asphalt coating agent prepared in 1 was aged for 10 to 15 hours, coated on a release paper at 100 to 120 ° C., and cooled to prepare a waterproof sheet.

(실시예 1)(Example 1)

시공면에 상기 1에서 제조한 고무화 아스팔트 도막제를 가열 용융하여 평활하게 도포하여 연결 부위가 없는 하나의 도막을 형성한(Seamless) 후 그 위에 상기 3에서 제조한 방수시트를 적층시켜 시공한 바 모체와의 접착부 접합 부위에서 누수가 없게 방수되었다.The rubberized asphalt coating agent prepared in 1 above was heated and melted smoothly to form a single coating film having no connection site (Seamless), and the waterproof sheet prepared in 3 above was laminated thereon. It was waterproof without leaking at the junction of the bond with the mother.

(실시예 2)(Example 2)

시공면에 상기 2에서 제조한 고무화 아스팔트 도막제 도포 후 PE 필림 또는 부직포를 적층한 다음 상기 2에서 제조한 고무화 아스팔트 도막제를 도포하고 상기 3에서 제조한 방수시트를 적층시켜 시공한 바 모체와의 접착부 및 접합 부위에서 누수가 없게 방수되었다.After coating the rubberized asphalt coating agent prepared in 2 above, the PE film or nonwoven fabric was laminated on the construction surface, and then the rubberized asphalt coating agent prepared in 2 was applied, and the waterproof sheet prepared in 3 was laminated. It was waterproof so that there was no leakage in the adhesion part and the joint part of the with.

(실시예 3)(Example 3)

시공면에 상기 2에서 제조한 고무화 아스팔트 도막제 도포후 PE 필림 또는 부직포를 적층한 다음 상기 2에서 제조한 고무화 아스팔트 도막제를 도포하는 공정을 1회 반복한 후 상기 3에서 제조한 방수시트를 적층 시공한 바 모체와의 접합부 및 접합 부위에서 누수가 없게 방수되었다.After applying the rubberized asphalt coating film prepared in 2 to the construction surface, the PE film or non-woven fabric laminated, and then repeats the step of applying the rubberized asphalt coating film prepared in 2 once the waterproof sheet prepared in 3 Lamination was performed to prevent water leakage at the junction and the junction with the parent.

이상에서 설명한 바와 같이, 본 발명의 고무화 아스팔트 도막제는 모체(콘크리트, 철조 콘크리트, 목재, 석조, 철구조)와 접착성이 우수할 뿐만 아니라 고무화아스팔트 도막과 방수시트는 충격 흡수력이 우수한 고무화 아스팔트로 되어 있어 장기간 경과 후에도 균열이 발생하지 않고, 유연성이 우수하여 모서리 부위, 요철부위에서의 들뜸 현상이 발생하지 않으며, 이들은 동질 재료로 되어 있어 연결 부위의 접착성 및 각층간의 접착성도 우수하여 본 발명 방법에 의하면 탁월한 방수효과를 나타낸다.As described above, the rubberized asphalt coating agent of the present invention not only has excellent adhesion with the matrix (concrete, steel concrete, wood, stone, iron structure), but also the rubberized asphalt coating film and the waterproof sheet have excellent impact absorption. As it is made of asphalt, it does not crack after long periods of time, and it has excellent flexibility, so that no lifting occurs at corners and irregularities.They are made of the same material, so that the adhesiveness of the connection part and the adhesion between layers are also excellent. According to the method of the present invention, it exhibits excellent waterproofing effect.

Claims (3)

시공면에 침입도 85∼100의 아스팔트(스트레이트 아스팔트) 40∼50 중량부와 침입도 10∼20의 브로운아스팔트 15∼20 중량부를 120∼170℃에서 용융 혼합한 것에 스틸렌 부타디엔 스틸렌(SBS) 합성고무 10∼15 중량부, 나프텐계 오일 10∼15 중량부, 충전제(CaCO3) 8∼10 중량부, 석유 수지 5∼8 중량부를 150∼170℃에서 가열 혼합한 것을 가열 혼합하여 제조한 고무화 아스팔트 도막제를 가열 용융하여 도포한 후 상기한 고무화 아스팔트 도막제로 미리 제조한 방수시트를 적층시킴을 특징으로 하는 다층 복합형 방수 시공방법.Styrene butadiene styrene (SBS) synthesis by melt-mixing 40 to 50 parts by weight of asphalt (straight asphalt) with 85 to 100 penetration and 15 to 20 parts by weight of blow asphalt with penetration of 10 to 20 at the construction surface Rubberized 10-10 parts by weight of rubber, 10-15 parts by weight of naphthenic oil, 8-10 parts by weight of filler (CaCO 3 ) and 5-8 parts by weight of petroleum resin by heat-mixing at 150-170 ° C. Multi-layer composite waterproof construction method characterized by laminating the waterproof sheet prepared by the above-mentioned rubberized asphalt coating film after heating and coating the asphalt coating film. 제 1 항에 있어서, 고무화 아스팔트 도막층과 방수시트 사이에 PE필름 또는 부직포 층을 더 적층시킴을 특징으로 하는 다층 복합형 방수 시공방법.The multi-layer composite waterproof construction method according to claim 1, further comprising a PE film or a non-woven layer between the rubberized asphalt coating layer and the waterproof sheet. 시공면에 침입도 85∼100의 아스팔트(스트레이트 아스팔트) 60∼70 중량부를 150℃로 용융한 후 110∼120℃에서 숙성한 것에 스틸렌 부타디엔 스틸렌 합성고무 라텍스 30∼35 중량부와 유화제, 소포제, 점도 조절제 각각 0.5∼1 중량부, 물 3-5 중량부를 35∼45℃에서 가열 혼합한 것을 가열 혼합하여 제조한 고무화 아스팔트 도막제를 가열 용융하여 도포한 후 상기한 고무화 아스팔트 도막제로 미리 제조한 방수시트를 적층시킴을 특징으로 하는 다층 복합형 방수 시공방법.30 to 35 parts by weight of styrene butadiene styrene synthetic rubber latex, emulsifying agent, antifoaming agent, viscosity The rubberized asphalt coating agent prepared by heating and mixing 0.5 to 1 parts by weight and 3-5 parts by weight of water at 35 to 45 ° C., respectively, was heat-melted and applied, and then prepared in advance using the rubberized asphalt coating agent. Multi-layer composite waterproof construction method characterized in that the waterproof sheet laminated.
KR1019980058161A 1998-12-24 1998-12-24 Multi-layer composite waterproof construction method KR100342539B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100732469B1 (en) 2006-12-27 2007-06-27 한양대학교 산학협력단 Floor structure for reduction of light-weight and heavy-weight impact sound and construction method thereof
KR101003480B1 (en) * 2008-04-21 2010-12-28 주식회사 대화 정밀화학 waterproofing process and waterproofing structure of the same
KR101153559B1 (en) 2011-12-14 2012-06-11 선구산업(주) Waterproof sheet with protective oil-soluble rubber asphalt in a body and method constructing the complex waterproof sheets thereof with recycling release polyethylene film of waste disposal
KR101714901B1 (en) * 2015-10-01 2017-03-09 주식회사 대산하이텍 Release film for asphalt sheet and preparing thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100489730B1 (en) * 2002-04-26 2005-05-16 서울산업대학교 산학협력단 Fiber mat for protection of fluid-applied membrane and waterproofing method using the same
SG163463A1 (en) * 2009-02-03 2010-08-30 Eps Offshore Oil Trading Plc Consumable bitumen film for packaging bitumen
KR101300406B1 (en) * 2012-01-06 2013-08-26 홍종덕 selective non-exposure complex waterproof structure using soft rubber-asphalt coating material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09177258A (en) * 1995-12-22 1997-07-08 Fumio Morigami Waterproof method for rooftop, verandah, etc.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09177258A (en) * 1995-12-22 1997-07-08 Fumio Morigami Waterproof method for rooftop, verandah, etc.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100732469B1 (en) 2006-12-27 2007-06-27 한양대학교 산학협력단 Floor structure for reduction of light-weight and heavy-weight impact sound and construction method thereof
KR101003480B1 (en) * 2008-04-21 2010-12-28 주식회사 대화 정밀화학 waterproofing process and waterproofing structure of the same
KR101153559B1 (en) 2011-12-14 2012-06-11 선구산업(주) Waterproof sheet with protective oil-soluble rubber asphalt in a body and method constructing the complex waterproof sheets thereof with recycling release polyethylene film of waste disposal
KR101714901B1 (en) * 2015-10-01 2017-03-09 주식회사 대산하이텍 Release film for asphalt sheet and preparing thereof

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