KR20130008970A - Repair method and repair structure of fire resistive covering matereal - Google Patents

Repair method and repair structure of fire resistive covering matereal Download PDF

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KR20130008970A
KR20130008970A KR1020110069706A KR20110069706A KR20130008970A KR 20130008970 A KR20130008970 A KR 20130008970A KR 1020110069706 A KR1020110069706 A KR 1020110069706A KR 20110069706 A KR20110069706 A KR 20110069706A KR 20130008970 A KR20130008970 A KR 20130008970A
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fireproof coating
repair
material layer
anchor
fixing plate
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KR1020110069706A
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Korean (ko)
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KR101270488B1 (en
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안태하
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안태하
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0288—Repairing or restoring floor slabs
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18—Fireproof paints including high temperature resistant paints
    • 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
    • E04B1/38—Connections for building structures in general
    • E04B1/388—Separate connecting elements
    • 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
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/942—Building elements specially adapted therefor slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Civil Engineering (AREA)
  • Electrochemistry (AREA)
  • Electromagnetism (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Building Environments (AREA)

Abstract

PURPOSE: A repair method and a repair structure of a fireproof covering material are provided to prevent the diffusion of the harmful dust of a deteriorated fireproof covering material and extend the lifespan of a fireproof covering material by preventing the separation of the fireproof covering material from a ceiling slab. CONSTITUTION: The repair method of a fireproof covering material comprises the following processes. The deteriorated degree of a fireproof covering material is determined(S100). The area of the deteriorated fireproof covering material is measured and a repair range is determined(S200). An anchor hole is perforated in the width and height direction at regular intervals in a ceiling slab inside of the repair range of a fireproof covering material(S300). A strong anchor is inserted in the anchor hole, one side of a full thread bolt is combined with the strong anchor, and the other side of the full thread bolt is wrapped by a protective cap(S400). In the state of wrapping a protective cap on a full thread bolt, a primer is painted and a non-woven fabric is spread and covers on the surface of a fireproof covering material(S500). A high molecular material layer is hardened by spreading a high molecular material having a certain thickness on the surface of a non-woven fabric(S600). After a protective cap exposed to the lower part of the hardened high molecular material layer is separated and removed, a nut fixes a fixing plate by inserting a full thread bolt into a penetrating hole formed in the fixing plate(S700). [Reference numerals] (S100) Deterioration determining step; (S200) Repair range confirming step; (S300) Anchor hole perforating step; (S400) Full thread bolt installing step; (S500) Non-woven fabric installing step; (S600) High molecular material layer forming step; (S700) Fixing plate combining step

Description

내화피복재의 보수방법 및 보수구조{REPAIR METHOD AND REPAIR STRUCTURE OF FIRE RESISTIVE COVERING MATEREAL}REPAIR METHOD AND REPAIR STRUCTURE OF FIRE RESISTIVE COVERING MATEREAL}

본 발명은 내화피복재의 보수방법 및 보수구조에 관한 것으로서 특히, 천정슬래브의 노화된 내화피복재를 철거하지 않은 상태에서 내화피복재의 표면이 부직포 및 고분자물질층에 의하여 커버되어진 후 스트롱앙카의 전산볼트에 고정판이 너트로 결합되어 내화피복재가 천정슬래브에서 분리되는 것을 방지할 수 있도록 한 것이다.The present invention relates to a repairing method and a repair structure of a fireproof coating, and in particular, the surface of the fireproof coating is covered by a nonwoven fabric and a polymer material layer without removing the aged fireproof coating of the ceiling slab, and then the computerized bolt of the strong anchor The fixing plate is coupled with a nut to prevent the fireproof coating from being separated from the ceiling slab.

일반적으로 지하철. 지하주차장의 천정슬래브에는 석면 텍스 이외에 내화피복재인 석면뿜칠로 경화되어 단열 및 방음 효과를 얻을 수 있게 시공되어 있다.Usually subway. In addition to asbestos tex, the ceiling slab of the underground parking lot is hardened with asbestos spray, which is a fireproof coating material, to provide insulation and sound insulation.

지하철, 지하주차장의 천정슬래브에 시공된 석면뿜칠은 시공후 일정 기간이 경과되는 과정에서 노후화로 인하여 미세한 유해 분진(석면가루)이 주변으로 비산되어 확산됨에 따라 주변 공간을 오염시키고, 석면가루를 호흡기를 통하여 인체의 내부에 들어가게 되어 각종 질병과 암을 발생시키는 원인이 되고 있었다.Asbestos spraying on ceiling slabs of subways and underground parking lots contaminates the surrounding space as fine harmful dust (asbestos powder) scatters and spreads as a result of aging during a certain period of time after construction, and contaminates asbestos powder. Through the inside of the human body has been causing various diseases and cancer.

이러한 노후화된 내화피복재인 석면뿜칠은 그 표면에 별도의 밀폐된 형태를 갖는 코팅층이 형성되어지도록 할 경우, 유해 분진이 주변으로 비산되는 것을 방지할 수 있으나, 코팅층의 불균일한 무게로 인하여 천정슬래브에 뿜칠로 형성된 내화피복재가 국부적으로 박리되는 문제점이 있었다.Asbestos spraying, which is an aging fireproof coating material, can prevent harmful dust from scattering to the surroundings when a coating layer having a separate sealed form is formed on the surface thereof, but due to the uneven weight of the coating layer, There was a problem in that the fireproof coating formed by spraying was locally peeled off.

또한, 내화피복재가 국부적으로 박리되었을 경우, 박리된 내화피복재를 중심으로 박리현상이 점진적으로 진행되어 많은 부분의 내화피복재가 연이어 분리되는 또 다른 문제점이 있었다.In addition, when the fireproof coating material is locally peeled off, the peeling phenomenon progresses gradually around the peeled fireproof coating material, and there is another problem that many parts of the fireproof coating material are separated in succession.

한편, 내화피복재가 박리되는 것을 방지하기 위한 보수 및 보강법이 여의치 않음에 따라 천정슬래브에 구비된 모든 내화피복재를 제거한 후 새로운 내화피복재를 다시 재시공하는 과정에서 많은 폐내화피복재가 발생되어 환경을 오염시키는 원인이 있었고, 내화피복재의 제거 및 시공에 따른 비용과 시간이 많이 소요되는 또 다른 문제점이 있었다.On the other hand, since there is no repair and reinforcement method to prevent the fireproof coating from peeling off, many fireproof coating materials are generated in the process of rebuilding new fireproof coating materials after removing all the fireproof coating materials provided on the ceiling slab to pollute the environment. There was another cause that is costly and time-consuming due to the removal and construction of fireproof coating materials.

본 발명은 천정슬래브에 석면뿜칠로 시공된 노후화된 내화피복재의 유해분진이 주변으로 확산되는 것을 방지할 수 있도록 하는 가운데 박리되는 것을 막을 수 있도록 하고, 이를 통해 내화피복재의 수명을 연장시킬 수 있도록 하여 재시공에 따른 환경오염과 비용 및 시간을 줄일 수 있도록 한 것이다.The present invention prevents the harmful dust of the aging fireproof coating material constructed by asbestos spraying on the ceiling slab to prevent it from being spread to the surroundings, thereby preventing the peeling off, thereby extending the life of the fireproof coating material It is to reduce environmental pollution, cost and time due to reconstruction.

본 발명은 천정슬래브(20)에 뿜칠로 구비된 내화피복재(10)의 보수방법에 있어서, 상기 보수방법은 내화피복재(10)의 노후화정도를 판단하는 노후화 판단단계(S100)와; 상기 노후화된 내화피복재(10)의 넓이를 측정하여 보수범위를 정하는 보수범위 확정단계(S200)와; 상기 내화피복재(10)의 보수범위내의 천정슬래브(20)에 일정간격을 갖는 앙카홀(21)이 가로 및 세로방향으로 천공되어지는 앙카홀 천공단계(S300)와; 상기 앙카홀(21)에 스트롱앙카(30)를 삽입하여 전산볼트(40)의 일측이 상기 스트롱앙카(30)에 결합되어지고, 상기 전산볼트(40)의 타측에 보호캡(C)이 씌워지는 전산볼트 설치단계(S400)와; 상기 전산볼트(40)에 보호캡(C)이 씌워진 상태에서 내화피복재(10)의 표면에 프라이머(60)를 도포한 후 부직포(50)를 펼쳐덮는 부직포 설치단계(S500)와; 상기 부직포(50)의 표면에 소정 두께를 갖는 고분자물질이 도포되어 고분자물질층(70)으로 경화되는 고분자물질층 형성단계(S600) 및; 상기 경화된 고분자물질층(70)의 하부로 노출된 보호캡(C)을 분리 제거한 후 고정판(80)에 형성된 관통홀(81)을 전산볼트(40)에 끼워 너트(N)로 고정하는 고정판 결합단계(S700)로 이루어짐을 특징으로 한다.The present invention relates to a repairing method of the fireproof coating (10) provided to be sprayed on the ceiling slab (20), the repairing method is an aging determination step (S100) for determining the degree of aging of the fireproof coating (10); A repair range determining step (S200) of determining a repair range by measuring a width of the aging fireproof coating (10); An anchor hole drilling step (S300) in which the anchor holes 21 having a predetermined interval in the ceiling slab 20 within the repair range of the fireproof coating material 10 are drilled in the horizontal and vertical directions; The strong anchor 30 is inserted into the anchor hole 21 so that one side of the computer bolt 40 is coupled to the strong anchor 30, and the protective cap C is covered on the other side of the computer bolt 40. Losing computer bolt installation step (S400) and; A nonwoven fabric installation step (S500) of covering the nonwoven fabric 50 after applying the primer 60 to the surface of the refractory coating material 10 in a state where the protective cap C is covered by the computer bolt 40; A polymer material layer forming step of applying a polymer material having a predetermined thickness to the surface of the nonwoven fabric 50 and curing the polymer material layer 70 (S600); After removing and removing the protective cap (C) exposed to the lower portion of the cured polymer material layer 70, the fixing plate for fixing the through-hole 81 formed in the fixing plate 80 to the computer bolt 40 to be fixed with a nut (N) Characterized in consisting of the coupling step (S700).

또한, 상기 고분자물질층 형성단계(S600)에서 도포되어지는 고분자물질은 폴리우레아, 폴리우레탄 및 에폭시 중 어느 하나로 이루어짐을 특징으로 한다.In addition, the polymer material to be applied in the polymer material layer forming step (S600) is characterized in that made of any one of polyurea, polyurethane and epoxy.

한편, 본 발명은 천정슬래브(20)에 구비된 내화피복재(10)의 보수구조에 있어서, 상기 내화피복재(10)는 천정슬래브(20)에 형성된 앙카홀(21)에 스트롱앙카(30)가 삽입되어지고, 상기 스트롱앙카(30)에 전산볼트(40)의 일측이 나사결합되어지고, 상기 내화피복재(10)의 표면으로 부직포(50)가 프라이머(60)에 의하여 덮혀지고, 상기 부직포(50)에 고분자물질이 도포되어 고분자물질층(70)으로 경화되어지고, 상기 고문자물질층(70)의 하부로 노출된 전산볼트(40)에 고정판(80)에 형성된 관통홀(81)을 끼우고, 상기 관통홀(81)을 관통하여 노출된 전산볼트(40)에 너트(N)를 나사결합시켜 상기 고분자물질층(70)의 하부가 고정판(80)에 의하여 가압되어짐을 특징으로 한다.On the other hand, the present invention in the repair structure of the refractory coating material 10 provided in the ceiling slab 20, the fireproof coating material 10 is a strong anchor 30 in the anchor hole 21 formed in the ceiling slab 20 One side of the threaded bolt 40 is inserted into the strong anchor 30, the nonwoven fabric 50 is covered by the primer 60 on the surface of the fireproof coating material 10, and the nonwoven fabric ( 50 is applied to the polymer material is cured into a polymer material layer 70, the through-hole 81 formed in the fixing plate 80 in the computer bolts 40 exposed to the lower portion of the high character material layer 70 Inserted by screwing the nut (N) to the threaded thread (40) exposed through the through-hole 81, characterized in that the lower portion of the polymeric material layer 70 is pressed by the fixing plate (80). .

또한, 상기 고정판(80)은 디스크형태의 금속재로 이루어진 것으로 중앙에 소정 직경을 갖는 관통홀(81)이 형성되어지되, 상기 관통홀(81)의 가장자리에 보강리브(82)가 일체로 형성되어짐을 특징으로 한다.In addition, the fixing plate 80 is made of a metal material in the form of a disk, a through hole 81 having a predetermined diameter is formed in the center, and a reinforcing rib 82 is integrally formed at the edge of the through hole 81. It is characterized by.

본 발명은 천정슬래브에 뿜칠로 구비되어진 후 노화된 내화피복재를 철거하지 않은 상태에서 내화피복재의 표면이 부직포 및 고분자물질층에 의하여 커버되어지도록 함으로써, 노후화된 내화피복재의 유해 분진이 주변으로 확산되는 것을 방지할 수 있는 효과를 얻을 수 있다.According to the present invention, the surface of the fireproof coating is covered by a nonwoven fabric and a polymer material layer in a state in which the aged fireproof coating is not removed after being sprayed onto the ceiling slab, whereby harmful dust of the aging fireproof coating is spread to the surroundings. The effect which can prevent that can be obtained.

또한, 내화피복재의 표면에 커버되어진 부직포 및 고분자물질층이 스트롱앙카의 전산볼트에 너트로 결합된 고정판에 의하여 천정슬래브의 방향으로 지지되어지도록 함으로써, 천정슬래브에서 내화피복재가 분리되는 것을 방지하여 수명을 더 연장시킨 효과를 얻을 수 있다.In addition, the nonwoven fabric and the polymer material layer covered on the surface of the fireproof coating material are supported in the direction of the ceiling slab by a fixing plate coupled with a nut to the computer bolt of the strong anchor, thereby preventing the fireproof coating material from being separated from the ceiling slab. The effect of further prolonging can be obtained.

그리고 이를 통해 내화피복재의 수명을 연장시킬 수 있도록 함으로써, 내화피복재의 재시공에 따른 환경오염과 비용 및 시간을 줄일 수 있는 효과를 더 얻을 수 있다.And through this, it is possible to extend the life of the refractory coating, it is possible to further obtain the effect of reducing the environmental pollution, cost and time due to the reconstruction of the refractory coating.

도1은 본 발명에 따른 내화피복재의 보수방법을 도시한 순서도.
도2는 본 발명에 따른 내화피복재의 보수방법을 도시한 구성도.
도3은 본 발명에 따른 내화피복재의 보수방법을 통해 보수된 요부를 확대 도시한 단면도.
도4는 본 발명에 따른 내화피복재의 보수방법을 통해 보수된 요부를 확대 도시한 분해 사시도.
도5는 본 발명에 따른 내화피복재의 보수방법을 통해 보수된 상태를 도시한 저면도.1 is a flow chart showing a repair method of a fireproof coating according to the present invention.
Figure 2 is a block diagram showing a repair method of a fireproof coating according to the present invention.
Figure 3 is an enlarged cross-sectional view showing the main portion repaired through the repairing method of the fireproof coating according to the present invention.
Figure 4 is an exploded perspective view showing an enlarged main portion repaired through the repairing method of the fireproof coating according to the present invention.
Figure 5 is a bottom view showing a state repaired through the repairing method of the fireproof coating according to the present invention.

본 발명의 실시예를 첨부 도면을 참조하여 설명하면 다음과 같다.An embodiment of the present invention will be described with reference to the accompanying drawings.

본 발명에 따른 내화피복재의 보수방법을 설명하기에 앞서 이러한 보수방법에 의하여 시공된 보수구조는 도3 내지 도5에 도시된 바와 같이, 천정슬래브(20)의 표면인 밑면에 소정 두께를 갖는 암면으로 이루어진 내화피복재(10)가 뿜칠로 시공되어진 상태에서 장기간 경과하여 노후화로 인하여 미세한 유해 분진이 주변으로 비산되어지는 것을 방지할 수 있게 구성되어 있다.Before explaining the repairing method of the fireproof coating according to the present invention, the repairing structure constructed by this repairing method is a rock surface having a predetermined thickness on the bottom surface of the ceiling slab 20, as shown in Figs. The refractory coating material 10 is made to be sprayed with a long period of time in the state that is constructed to prevent the harmful dust from being scattered due to aging is configured to prevent.

상기 내화피복재(10)의 표면인 밑면에는 프라이머(60)에 의하여 부직포(50)가 접착되어진 상태로 커버되게 구비되어지고, 상기 부직포(50)의 밑면에는 소정 두께를 갖는 고분자물질인 폴리우레아(Polyurea), 폴리우레탄(Polyurethane) 및 에폭시(Epoxy) 중 어느 하나의 액상형태로 이루어진 것이 도포되어 경화됨으로써, 내,외부가 완벽하게 차단되어질 수 있게 구성되어 있다.The lower surface of the fireproof coating 10 is provided to cover the nonwoven fabric 50 is bonded by a primer 60, the lower surface of the nonwoven fabric 50 polyurea (polymer material having a predetermined thickness) ( Polyurea, polyurethane (Polyurethane) and epoxy (Epoxy) of any one consisting of a liquid form is applied and cured, it is configured to be completely blocked inside and outside.

상기 고분자 물질인 폴리우레아는 압축강도가 좋고, 신축성, 내산성, 내알카리성, 내약품성 및 자외선에 잘 견디는 특성이 있고, 환경오염이 없으며 온도의 영향을 전혀 받지 않음으로 겨울철에도 사용이 가능한 장점이 있다.Polyurea, the polymer material, has a good compressive strength, elasticity, acid resistance, alkali resistance, chemical resistance, and UV resistance, has no environmental pollution, and is not affected by temperature. .

이러한 고분자 물질인 폴레우레탄 또는 에폭시는 벽면 및 천장의 도포작업시 흘러내리고, 도포 후 경과 시간이 1일 정도로 폴리우레아에 비해 길므로 신속을 요하는 작업에 적합치 않지만, 시공에 따른 소요 경비가 폴리우레아에 비해 현저히 줄어들게 되는 장점이 있다.Polyurethane or epoxy, which is a polymer material, flows down during the application of walls and ceilings, and it is not suitable for the work requiring rapidity because the elapsed time after application is about 1 day longer than polyurea, but the cost required for construction is high. Compared to the advantages that are significantly reduced.

고분자물질층(70)은 전산볼트(40)에 나사결합된 너트(N)에 의하여 천정슬래브(20)의 밑면으로 가압되어지는 고정판(80)에 의하여 지지되어지게 구성되어 있다.The polymer material layer 70 is configured to be supported by the fixing plate 80 pressed against the bottom surface of the ceiling slab 20 by a nut N screwed to the computer bolt 40.

상기 전산볼트(40)는 천정슬래브(20)에 형성된 앙카홀(21)의 스트롱앙카(30)에 상부인 일측이 나사결합되어지게 구성되어 있다.The computer bolt 40 is configured to be screwed on one side of the upper portion of the strong anchor 30 of the anchor hole 21 formed in the ceiling slab (20).

상기 고정판(80)은 너트(N)의 조임력 또는 가압력이 넓은 면적으로 확산되어지도록 하는 기능을 갖는 것으로 디스크형태의 금속재로 형성되어 있다.The fixing plate 80 has a function to diffuse the tightening force or the pressing force of the nut (N) to a large area is formed of a metal material of the disk type.

상기 고정판(80)의 중앙에는 전산볼트(40)가 관통되도록 하기 위해 소정 직경을 갖는 관통홀(81)이 형성되어지고, 상기 너트(N)의 조임력에 의하여 고정판(80)의 중앙이 변형되는 것을 방지하기 위해 상기 관통홀(81)의 가장자리에 보강리브(82)가 일체로 형성되어지게 구성되어 있다. 즉, 상기 고분자물질층(70)의 하부로 노출된 전산볼트(40)에는 고정판(80)에 형성된 관통홀(81)이 끼워지고, 상기 관통홀(81)을 관통하여 노출된 전산볼트(40)에 너트(N)를 나사결합되어짐으로써, 상기 너트(N)에 의하여 고분자물질층(70)의 하부가 고정판(80)에 의하여 천정슬래브(20)의 밑면으로 가압되어지게 된다. 도면중 미설명 부호(C)는 보호캡이다.A through hole 81 having a predetermined diameter is formed in the center of the fixing plate 80 to allow the threaded bolt 40 to pass therethrough, and the center of the fixing plate 80 is deformed by the tightening force of the nut N. In order to prevent that, the reinforcing ribs 82 are formed integrally with the edges of the through holes 81. That is, the through-hole 81 formed in the fixing plate 80 is fitted into the computed bolt 40 exposed to the lower portion of the polymer material layer 70, and the computed bolt 40 exposed through the through-hole 81. By screwing the nut (N) to), the lower portion of the polymer layer 70 by the nut (N) is pressed to the bottom surface of the ceiling slab 20 by the fixing plate (80). In the drawings, reference numeral C denotes a protective cap.

이와 같은 구조를 갖는 내화피복재의 보수방법은 먼저, 노후화 판단단계(S100)로 천정슬래브(20)의 하부로 내화피복재인 암면이 시공되어진 후 경과기간과 육안검사를 통해 내화피복재의 노후화정도를 판단하고, 상기 노후화된 내화피복재(10)의 넓이를 측정하여 보수범위를 정한다(보수범위 확정단계(S200)).The repairing method of fireproof coating having such a structure is, first, after determining the aging degree of the fireproof coating through the lapse of time and visual inspection after the construction of rock wool, which is a fireproof coating under the ceiling slab 20, in the aging determination step (S100). And, to determine the repair range by measuring the width of the aging fireproof coating (10) (S200 repair step determination step).

다음, 앙카홀 천공단계(S300)로 내화피복재(10)의 보수범위내의 천정슬래브(20)에 소정 깊이로 일정간격을 갖는 앙카홀(21)이 가로 및 세로방향으로 천공공구에 의하여 천공되어지도록 한다(앙카홀 천공단계(S300)).Next, in the anchor hole drilling step (S300) so that the anchor hole 21 having a predetermined interval at a predetermined depth in the ceiling slab 20 within the repair range of the fireproof coating material 10 is to be perforated by the drilling tool in the horizontal and vertical directions. (Anchor hole drilling step (S300)).

다음, 전산볼트 설치단계(S400)로 앙카홀(21)에 스트롱앙카(30)를 삽입하여 전산볼트(40)의 일측이 스트롱앙카(30)에 결합되어지도록 한 후 전산볼트(40)의 타측에 보호캡(C)이 씌워지도록 하여 액상형태의 프라이머 및 고분자물질이 전산볼트(40)의 나사산에 뭍는 것을 방지할 수 있게 된다(전산볼트 설치단계(S400)).Next, by inserting the strong anchor 30 into the anchor hole 21 in the mounting bolt installation step (S400) so that one side of the computer bolt 40 is coupled to the strong anchor 30, the other side of the computer bolt (40) The protective cap (C) is covered on the liquid primer to prevent the primer and the polymer material from falling on the thread of the bolt 40 (computation bolt installation step (S400)).

다음, 부직포 설치단계(S500)로 전산볼트(40)에 보호캡(C)이 씌워진 상태에서 내화피복재(10)의 표면에 프라이머(60)를 소정 두께를 갖도록 도포한 후 부직포(50)를 펼쳐 덮고, 부직포(50)의 표면에 소정 두께를 갖는 고분자물질이 도포되어 고분자물질층(70)으로 경화되어지도록 한다(고분자물질층 형성단계(S600)). 이때, 고분자물질층 형성단계(S600)에서 도포되어지는 고분자물질은 폴리우레아, 폴리우레탄 및 에폭시 중 어느 하나로 이루어지도록 하는 것이 바람직하다.Next, the nonwoven fabric installation step (S500) in the state that the protective cap (C) is covered on the computer bolt 40 is applied to the surface of the refractory coating material 10 to have a predetermined thickness and then expand the nonwoven fabric 50 Covering, the polymer material having a predetermined thickness is applied to the surface of the nonwoven fabric 50 to be cured to the polymer material layer 70 (polymer material layer forming step (S600)). At this time, the polymer material to be applied in the polymer material layer forming step (S600) is preferably made of any one of polyurea, polyurethane and epoxy.

다음, 경화된 고분자물질층(70)의 하부로 노출된 보호캡(C)을 분리 제거한 후 고정판(80)에 형성된 관통홀(81)을 전산볼트(40)에 끼워 너트(N)로 고정하는 고정판 결합단계(S700)를 통해 내화피복재가 보수되어지게 된다.Next, after separating and removing the protective cap (C) exposed to the lower portion of the cured polymer material layer 70 to insert the through-hole 81 formed in the fixing plate 80 to the bolt (40) to fix with a nut (N) Refractory coating material is to be repaired through the fixing plate coupling step (S700).

S100:노후화 판단단계 S200:보수범위 확정단계
S300:앙카홀 천공단계 S400:전산볼트 설치단계
S500:부직포 설치단계 S600:고분자물질층 형성단계
S700:고정판 결합단계 10:내화피복재(석면뿜칠)
20:천정슬래브 21:앙카홀
30:스트롱앙카 40:전산볼트
50:부직포 60:프라이머
70:고분자물질층 80:고정판
81:관통홀S100: Aging Determination Step S200: Repair Range Confirmation Step
S300: Anchor hole drilling step S400: Computer bolt installation step
S500: nonwoven fabric installation step S600: polymer material layer formation step
S700: fixing plate bonding step 10: fireproof coating (asbestos spraying)
20: ceiling slab 21: anchor hole
30: Strong anchor 40: Computer bolt
50: nonwoven fabric 60: primer
70: polymer layer 80: fixed plate
81: through hole

Claims (4)

천정슬래브(20)에 석면뿜칠로 구비된 내화피복재(10)의 보수방법에 있어서,
상기 보수방법은 내화피복재(10)의 노후화정도를 판단하는 노후화 판단단계(S100)와;
상기 노후화된 내화피복재(10)의 넓이를 측정하여 보수범위를 정하는 보수범위 확정단계(S200)와;
상기 내화피복재(10)의 보수범위내의 천정슬래브(20)에 일정간격을 갖는 앙카홀(21)이 가로 및 세로방향으로 천공되어지는 앙카홀 천공단계(S300)와;
상기 앙카홀(21)에 스트롱앙카(30)를 삽입하여 전산볼트(40)의 일측이 상기 스트롱앙카(30)에 결합되어지고, 상기 전산볼트(40)의 타측에 보호캡(C)이 씌워지는 전산볼트 설치단계(S400)와;
상기 전산볼트(40)에 보호캡(C)이 씌워진 상태에서 내화피복재(10)의 표면에 프라이머(60)를 도포한 후 부직포(50)를 펼쳐덮는 부직포 설치단계(S500)와;
상기 부직포(50)의 표면에 소정 두께를 갖는 고분자물질이 도포되어 고분자물질층(70)으로 경화되는 고분자물질층 형성단계(S600) 및;
상기 경화된 고분자물질층(70)의 하부로 노출된 보호캡(C)을 분리 제거한 후 고정판(80)에 형성된 관통홀(81)을 전산볼트(40)에 끼워 너트(N)로 고정하는 고정판 결합단계(S700)로 이루어짐을 특징으로 하는 내화피복재의 보수방법.In the repairing method of the fireproof coating (10) provided in the ceiling slab 20 asbestos spraying,
The repair method includes an aging determination step (S100) of determining an aging degree of the fireproof coating (10);
A repair range determining step (S200) of determining a repair range by measuring a width of the aging fireproof coating (10);
An anchor hole drilling step (S300) in which the anchor holes 21 having a predetermined interval in the ceiling slab 20 within the repair range of the fireproof coating material 10 are drilled in the horizontal and vertical directions;
The strong anchor 30 is inserted into the anchor hole 21 so that one side of the computer bolt 40 is coupled to the strong anchor 30, and the protective cap C is covered on the other side of the computer bolt 40. Losing computer bolt installation step (S400) and;
A nonwoven fabric installation step (S500) of covering the nonwoven fabric 50 after applying the primer 60 to the surface of the refractory coating material 10 in a state where the protective cap C is covered by the computer bolt 40;
A polymer material layer forming step of applying a polymer material having a predetermined thickness to the surface of the nonwoven fabric 50 and curing the polymer material layer 70 (S600);
After removing and removing the protective cap (C) exposed to the lower portion of the cured polymer material layer 70, the fixing plate for fixing the through-hole 81 formed in the fixing plate 80 to the computer bolt 40 to be fixed with a nut (N) Repair method of the fireproof coating, characterized in that the coupling step (S700) made. 제1항에 있어서,
상기 고분자물질층 형성단계(S600)에서 도포되어지는 고분자물질은 폴리우레아, 폴리우레탄 및 에폭시 중 어느 하나로 이루어짐을 특징으로 하는 내화피복재의 보수방법.The method of claim 1,
The polymeric material to be applied in the polymer material layer forming step (S600) is a repair method of a fireproof coating, characterized in that made of any one of polyurea, polyurethane and epoxy. 천정슬래브(20)에 구비된 내화피복재(10)의 보수구조에 있어서,
상기 내화피복재(10)는 천정슬래브(20)에 형성된 앙카홀(21)에 스트롱앙카(30)가 삽입되어지고, 상기 스트롱앙카(30)에 전산볼트(40)의 일측이 나사결합되어지고, 상기 내화피복재(10)의 표면으로 부직포(50)가 프라이머(60)에 의하여 덮혀지고, 상기 부직포(50)에 고분자물질이 도포되어 고분자물질층(70)으로 경화되어지고, 상기 고문자물질층(70)의 하부로 노출된 전산볼트(40)에 고정판(80)에 형성된 관통홀(81)을 끼우고, 상기 관통홀(81)을 관통하여 노출된 전산볼트(40)에 너트(N)를 나사결합시켜 상기 고분자물질층(70)의 하부가 고정판(80)에 의하여 가압되어짐을 특징으로 하는 내화피복재의 보수구조In the repair structure of the fireproof coating (10) provided in the ceiling slab 20,
The fireproof coating 10 is a strong anchor 30 is inserted into the anchor hole 21 formed in the ceiling slab 20, one side of the computer bolt 40 is screwed to the strong anchor 30, The nonwoven fabric 50 is covered by the primer 60 on the surface of the fireproof coating 10, a polymer material is applied to the nonwoven fabric 50, and is cured into a polymer material layer 70, the high character material layer The through hole 81 formed in the fixing plate 80 is inserted into the threaded bolt 40 exposed to the lower portion of the 70, and the nut N is inserted into the threaded bolt 40 exposed through the through hole 81. By screwing the repairing structure of the fireproof coating material, characterized in that the lower portion of the polymeric material layer 70 is pressed by the fixing plate 80 제3항에 있어서,
상기 고정판(80)은 디스크형태의 금속재로 이루어진 것으로 중앙에 소정 경을 갖는 관통홀(81)이 형성되어지되, 상기 관통홀(81)의 가장자리에 보강리브(82)가 일체로 형성되어짐을 특징으로 하는 내화피복재의 보수구조. The method of claim 3,
The fixing plate 80 is formed of a metal material in the form of a disk, and a through hole 81 having a predetermined diameter is formed at the center thereof, and a reinforcing rib 82 is integrally formed at the edge of the through hole 81. Repair structure of fireproof coating.
KR1020110069706A 2011-07-14 2011-07-14 Repair method and repair structure of fire resistive covering matereal KR101270488B1 (en)

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