Novel building roof composite coating waterproof structure

Abstract

The utility model relates to a novel building roof composite coating waterproof structure, which belongs to the field of building waterproof structures and comprises a surface layer, a fine aggregate concrete reinforcement layer, a thermal insulation layer, a sloping leveling layer, an SBT (styrene butadiene styrene) single-component polyurethane waterproof coating layer, a reinforcing layer, an SBT high-permeability epoxy waterproof layer and a concrete layer. The concrete reinforcement layer is covered with an SBT high-permeability epoxy waterproof layer, the SBT high-permeability epoxy waterproof layer is covered with a reinforcing layer, the reinforcing layer is covered with an SBT single-component polyurethane waterproof coating layer, the SBT single-component polyurethane waterproof coating layer is covered with a sloping leveling layer, the sloping leveling layer is covered with a heat preservation layer, and the heat preservation layer is covered with a fine aggregate concrete reinforcement layer. The fine aggregate concrete reinforcement layer is covered with a surface layer; according to the utility model, the SBT high-permeability epoxy waterproof coating is adopted for bottoming, and the waterproof layer is directly implanted into the reinforced concrete structure layer by utilizing the high permeability of the waterproof coating, so that the seamless bonding of the waterproof coating and the structure layer is realized while the concrete on the surface layer is compacted and strengthened; the problem that the waterproof paint bulges and falls off due to moisture in a base layer in traditional construction is solved.

Description

Technical Field

[0001] The utility model belongs to the field of building waterproof structures, and specifically relates to a novel composite coating waterproof structure for building roofs. Background Art

[0002] The problem of house leakage in construction projects has always been a very prominent problem in engineering construction. In traditional construction, waterproofing membranes are generally used as waterproof layers, but the splicing operation of waterproof membranes is demanding, and it is difficult to construct in special locations such as the corners of parapets. The use of waterproof coatings can solve this problem well, but the construction of waterproof coatings has high requirements for the base layer treatment, and it is easy to bulge and fall off due to moisture in the base layer, resulting in the formation of a cross-flow layer between the waterproof layer and the base layer, which will cause leakage when encountering structural cracks. Utility Model Content

[0003] In order to overcome the problems existing in the background technology, the utility model provides a novel composite coating waterproof structure for building roofs, which adopts SBT high-permeability epoxy waterproof coating as a primer, and utilizes the high permeability of the waterproof coating to directly implant the waterproof layer into the reinforced concrete structural layer, thereby compacting and strengthening the surface concrete and achieving seamless bonding between the waterproof coating and the structural layer, thus solving the problem of bulging and falling off of the waterproof coating due to moisture in the base layer in traditional construction.

[0004] The first aspect of the present application provides a new type of composite coating waterproof structure for building roofs, a new type of composite coating waterproof structure for building roofs, characterized in that it includes a surface layer, a fine stone concrete steel reinforcement layer, an insulation layer, a slope leveling layer, an SBT single-component polyurethane waterproof coating layer, a reinforcement layer, an SBT high-permeability epoxy waterproof layer, and a concrete layer.

[0005] The concrete layer is covered with an SBT high-permeability epoxy waterproof layer, the SBT high-permeability epoxy waterproof layer is covered with a reinforcement layer, the reinforcement layer is covered with an SBT single-component polyurethane waterproof coating layer, the SBT single-component polyurethane waterproof coating layer is covered with a slope and leveling layer, the slope and leveling layer is covered with an insulation layer, the insulation layer is covered with a fine stone concrete steel bar layer, and the fine stone concrete steel bar layer is covered with a surface layer.

[0006] Preferably, the fine aggregate concrete reinforcement layer is 40 mm thick C20 fine aggregate concrete with Φ4@150@ reinforcement inside.

[0007] Preferably, the reinforcement layer is composed of three layers of SBT single-component polyurethane waterproof coating and two layers of glass fiber non-woven fabric laid alternately.

[0008] Beneficial effects of the utility model:

[0009] The solution provided by this application uses SBT high-permeability epoxy waterproof coating as a primer, and uses the high permeability of the waterproof coating to directly implant the waterproof layer into the reinforced concrete structure layer, which not only densifies and strengthens the surface concrete, but also achieves seamless bonding between the waterproof coating and the structural layer, solving the problem of bulging and falling off of the waterproof coating due to moisture in the base layer in traditional construction;

[0010] Apply SBT one-component polyurethane waterproof coating, the two layers of waterproof coating are tightly bonded, and the waterproof coating has good crack tracking and flexibility, and can maintain a high elongation at break during the entire molding process, solving the water leakage problem caused by cracks caused by aging of the base layer in traditional construction;

[0011] After the SBT high-permeability epoxy waterproof coating is applied, white spots will appear in the areas where the coating is missed or under-coated. The construction workers can check the waterproof coating with the naked eye, and the construction quality is easy to control. In addition, the coating can be applied without visible water, eliminating the construction process of applying base treatment liquid in traditional construction, effectively saving construction time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall planar structure shown in the embodiment of the present application;

[0013] Figure 2 It is a schematic diagram of the structure at the yin and yang corners shown in an embodiment of the present application.

[0014] In the figure, 1-surface layer; 2-fine stone concrete reinforcement layer; 3-insulation layer; 4-slope leveling layer; 5-SBT single-component polyurethane waterproof coating layer; 6-reinforcement layer; 7-SBT high-permeability epoxy waterproof layer; 8-concrete layer. DETAILED DESCRIPTION

[0015] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0016] In the description of the present invention, unless otherwise specified, the terms "upper", "lower", etc., indicating the orientation or state relationship are based on the orientation or state relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0017] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "provided with" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention will be understood according to specific circumstances.

[0018] In traditional construction, roof waterproofing generally uses waterproof membrane as the waterproof layer, but the splicing operation of waterproof membrane has high requirements, and it is difficult to construct in special parts such as parapets. The use of waterproof coatings can solve this problem well, but the construction of waterproof coatings has high requirements for the treatment of the base layer, and it is easy to bulge and fall off due to moisture in the base layer, resulting in the formation of a cross-flow layer between the waterproof layer and the base layer, which will cause leakage when encountering structural cracks.

[0019] In response to the above problems, the solution provided in this application adopts SBT high-permeability epoxy waterproof coating as a primer, and uses the high permeability of the waterproof coating to directly implant the waterproof layer into the reinforced concrete structural layer, thereby compacting and strengthening the surface concrete while achieving seamless bonding between the waterproof coating and the structural layer, solving the problem of bulging and falling off of the waterproof coating due to moisture in the base layer in traditional construction.

[0020] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0021] See also Figure 1-2 The present application provides a novel composite membrane waterproof structure device for building roofs, comprising a surface layer 1, a fine stone concrete reinforcement layer 2, an insulation layer 3, a slope leveling layer 4, an SBT single-component polyurethane waterproof coating layer 5, a reinforcement layer 6, an SBT high-permeability epoxy waterproof layer 7, and a concrete layer 8;

[0022] In this embodiment, the concrete layer 8 is covered with a SBT high permeability epoxy waterproof layer 7, the SBT high permeability epoxy waterproof layer 7 is covered with a reinforcement layer 6, the reinforcement layer 6 is covered with a SBT single-component polyurethane waterproof coating layer 5, the SBT single-component polyurethane waterproof coating layer 5 is covered with a slope leveling layer 4, the slope leveling layer 4 is covered with an insulation layer 3, the insulation layer 3 is covered with a fine stone concrete steel bar layer 2, and the fine stone concrete steel bar layer 2 is covered with a surface layer 1. The insulation layer 3 can use ceramic insulation coating.

[0023] Specifically, the fine stone concrete reinforcement layer 2 is 40 mm thick C20 fine stone concrete with Φ4@150@ reinforcement inside. The reinforcement layer 6 is composed of three layers of SBT single-component polyurethane waterproof coating and two layers of glass fiber non-woven fabric laid alternately.

[0024] Specifically, use brooms, shovels and other tools to clean up dust and debris on the surface of the concrete layer 8 serving as the base layer. Uneven parts need to be repaired and leveled. At the same time, cement mortar is used to fillet the corners of the parapet and other corners. After the repair is completed, a special shot blasting machine is used to grind the base surface. The shot blasting machine can project fine shot at a very fast speed and a certain angle onto the surface of the concrete structure, allowing the shot to impact the concrete surface to remove the floating slurry layer, and then the shot and the cleaned impurities are recovered separately through the vacuum cleaner inside the machine to make the base layer solid and flat.

[0025] After the base treatment is completed, due to the permeability of SBT high permeability epoxy waterproof coating, there is no need to apply base treatment liquid on the upper part of the base. You only need to clean the base to ensure that there is no visible water or floating dust on the upper part of the base before construction. When constructing SBT high permeability epoxy waterproof coating, the construction sequence is to first detail and then the whole. After the waterproof coating is mixed in proportion, the construction is first carried out on the corners, pipe roots, drainage grooves and other parts, and then the coating is evenly applied to the base surface with a roller. The amount per square meter is controlled at about 300~500g.

[0026] After waiting for the SBT high-permeability epoxy waterproof coating to fully penetrate into the base layer, some areas that were missed or under-coated will show white spots. Re-coat the white spots. If there is no white spotting within 30 minutes, the application of the penetration oxide layer is completed. The SBT high-permeability epoxy waterproof coating will penetrate 3 to 5 cm into the base layer. After curing, it will penetrate and embed into the pores, completely compacting and strengthening the surface concrete and isolating it from moisture. The compacted surface concrete becomes a transition layer between the waterproof layer and the base layer.

[0027] Since the SBT high-permeability epoxy waterproof coating needs to fully penetrate into the concrete structure, a waterproof reinforcement layer 6 is laid on the upper part of the SBT high-permeability epoxy waterproof coating layer at the corners, post-cast strips, downspouts and other locations. The reinforcement layer 6 is made of three layers of SBT single-component polyurethane waterproof coating and two layers of glass fiber non-woven fabrics, which are laid alternately. Before laying, it is necessary to ensure that each layer of non-woven fabric is fully soaked with the polyurethane coating. The width of the reinforcement layer 6 is about 30~40cm.

[0028] After the SBT high-permeability epoxy waterproof coating is completely dry, the entire surface is coated with SBT one-component polyurethane waterproof coating. The SBT one-component polyurethane waterproof coating is constructed in two layers, and the construction steps of the two layers are the same. Pour the coating and apply it evenly on the base surface with a roller. During construction, apply the details first and then the whole. The coating per square meter is controlled at about 2.4kg and the thickness is about 1.5mm. After the first coat of coating is fully cured and people can walk on it, the second coat of construction can be carried out. After the second coat of construction is completed, the waterproof layer will be dried for two days to ensure the construction quality of the waterproof layer.

[0029] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A new type of building roof composite coating waterproof structure, characterized in that: Including surface layer, fine stone concrete steel layer, insulation layer, slope leveling layer, SBT single component polyurethane waterproof coating layer, reinforcement layer, SBT high permeability epoxy waterproof layer, concrete layer; The concrete layer is covered with an SBT high-permeability epoxy waterproof layer, the SBT high-permeability epoxy waterproof layer is covered with a reinforcement layer, the reinforcement layer is covered with an SBT single-component polyurethane waterproof coating layer, the SBT single-component polyurethane waterproof coating layer is covered with a slope and leveling layer, the slope and leveling layer is covered with an insulation layer, the insulation layer is covered with a fine stone concrete steel bar layer, and the fine stone concrete steel bar layer is covered with a surface layer.

2. The novel building roof composite coating waterproof structure according to claim 1 is characterized in that: The fine aggregate concrete reinforcement layer is 40 mm thick C20 fine aggregate concrete with Φ4@150@ reinforcement inside.

3. The novel building roof composite coating waterproof structure according to claim 1 is characterized in that: The reinforcement layer is composed of three layers of SBT single-component polyurethane waterproof coating and two layers of glass fiber non-woven fabric laid alternately.

Images