Construction method for recyclable waterproof protection layer on side edge of raft

Abstract

The invention relates to the technical field of building construction, in particular to a construction method of a recyclable waterproof protective layer on the side edge of a raft, and a detachable waterproof protective layer template is used for protecting a waterproof layer, so that compared with the traditional construction of the waterproof protective layer on the side edge of the raft, the protective effect is better; and it can be effectively guaranteed that the waterproof layer is prevented from being damaged when raft reinforcing steel bars are bound. Compared with traditional raft side edge waterproof protection layer construction, the construction difficulty is greatly reduced, the construction speed is increased, and the construction period is shortened. Construction is simple, materials are convenient to obtain, dismantling and turnover use can be achieved, and materials and construction cost are greatly saved. The material is light and convenient to carry. After the concrete raft is constructed, the material can be used as templates of beams, columns and the like, so that green construction is realized, and energy is saved.

Description

Technical Field

[0001] The present invention relates to the field of construction technology, specifically a construction method for a recyclable waterproof protective layer on the side of a raft foundation slab. Background Art

[0002] In urban construction, whether it is public buildings, residential community buildings or other types of construction projects, basement structures are involved. The raft foundation waterproof layer and waterproof protective layer of the basement structure project are key factors to ensure the normal use of the basement without leakage, which affects the structural safety and service function.

[0003] For the waterproofing on the side of the basement raft foundation, SBS waterproof coiled materials are usually used. A conventional method for the protective layer of the waterproof coiled material is to directly paste a 30 - mm - thick polystyrene board after the completion of the waterproof layer construction. This method not only increases the material cost but also is easily damaged by the steel bars during steel bar binding due to the low strength of the polystyrene board, resulting in the risk of later leakage. Another conventional method is to use mortar for protection. Since the surface of the waterproof coiled material is relatively smooth, it is difficult for the mortar to bond with the waterproof coiled material. Usually, a steel wire mesh is hung on the surface and then a thin layer of mortar is applied. This method not only has a slow construction speed and high construction difficulty but also is easily damaged or peeled off by the steel bars during the steel bar binding of the raft foundation due to the thin mortar layer, resulting in the damage of the waterproof layer. Another common method is to use cement pressure plates to protect the waterproof layer. This method has simple construction and fast construction speed, but at the same time, it greatly increases the project cost, and the materials cannot be recycled, failing to meet the requirements of green construction.

[0004] In summary, using insulation boards or mortar as the protective layer of the waterproof coiled material will increase the risk of damage to the waterproof layer, increase the construction difficulty, increase the cost and, to a certain extent, increase the construction period. Using cement pressure plates as the protective layer of the waterproof coiled material will increase the project cost and the materials cannot be recycled, resulting in material waste and failing to achieve the purpose of green construction. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a construction method for a recyclable waterproof protective layer on the side of a raft foundation slab.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A construction method for a recyclable waterproof protective layer on the side of a raft foundation slab, comprising: Manufacturing a yang - corner fixture. The yang - corner fixture includes a first angle steel and a second angle steel. A connecting bolt is arranged inside the first angle steel along the angle - bisector direction. A first through - hole adapted to the connecting bolt is opened at the corner of the second angle steel. A connecting piece is arranged inside the second angle steel, and a second through - hole adapted to the connecting bolt is opened on the connecting piece; Fabricate a waterproof protective layer formwork, which includes a first baffle and a second baffle connected perpendicularly to each other. A third through-hole adapted to a connecting bolt is provided at the corner where the first baffle and the second baffle are connected. Insert the connecting bolt through the third through-hole and attach the first angle steel to the outer sides of the first baffle and the second baffle. Sleeve the second angle steel onto the connecting bolt through the first through-hole and the second through-hole, and attach the second angle steel to the inner sides of the first baffle and the second baffle. Screw a nut onto the connecting bolt and tighten it to assemble a detachable waterproof protective layer formwork. Pour the raft cushion concrete according to the design and construction requirements. After pouring, lay out the positioning line of the brick tire formwork on the raft cushion, and build the brick tire formwork according to the positioning line. Lay a waterproof coiled material on the raft cushion. The edge of the waterproof coiled material is turned up to the top surface of the brick tire formwork and covers the top surface. Pour the waterproof protective layer on the waterproof coiled material on the raft plane. Fit an isolation layer on the outside of the waterproof coiled material on the side of the raft, and place the detachable waterproof protective layer formwork against the isolation layer for protection. Bind the raft steel bars. After binding, remove the detachable waterproof protective layer formwork, and then pour the raft concrete after removal.

[0007] As a preference, a further technical solution of the present invention is: Preferably, a lifting lug is provided on the outer side surface of the first angle steel.

[0008] Preferably, the isolation layer adopts a 0.4-mm-thick polyethylene film waterproof isolation layer.

[0009] Preferably, a wooden square is provided on the inner side surface of the first baffle. When placing the detachable waterproof protective layer formwork against the isolation layer, the wooden square presses on the waterproof coiled material on the top surface of the brick tire formwork.

[0010] Preferably, the connecting piece forms a 45-degree angle with both side surfaces of the second angle steel.

[0011] The present invention adopting the above technical solution, compared with the prior art, has the following prominent features: 1. Compared with the traditional construction of the waterproof protective layer on the side of the raft, the present invention has a better protection effect, and can effectively ensure that the waterproof layer is not damaged during the binding of the raft steel bars. 2. Compared with the traditional construction of the waterproof protective layer on the side of the raft, the present invention greatly reduces the construction difficulty, speeds up the construction speed and saves the construction period. 3. The construction of the present invention is simple, the materials are convenient to obtain, and it can be disassembled and reused, greatly saving materials and construction costs. 4. The materials of the present invention are light in weight and convenient to handle. 5. After the construction of the concrete raft is completed, the materials of the present invention can be used as formworks for beams, columns, etc., achieving green construction and saving energy. Description of the Drawings

[0012] Figure 1It is a schematic construction diagram of a recyclable waterproof protective layer on the side of a raft foundation in an embodiment of the present invention; Figure 2 It is a schematic structural diagram of an external corner fixture in an embodiment of the present invention.

[0013] Explanation of reference numerals: 1, brick formwork; 2, waterproof coiled material; 3, isolation layer; 4, wooden square; 5, formwork for waterproof protective layer; 6, external corner fixture; 7, raft foundation steel bars; 8, raft foundation concrete; 9, first angle steel; 10, second angle steel; 11, connecting bolt; 12, connecting piece; 13, lifting lug. Detailed implementation manners

[0014] The present invention will be further described below in conjunction with specific embodiments. The purpose is only to better understand the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0015] As Figures 1 to 2 shown, this embodiment provides a construction method for a recyclable waterproof protective layer on the side of a raft foundation, including: Manufacture an external corner fixture 6. The external corner fixture 6 includes a first angle steel 9 and a second angle steel 10. A connecting bolt 11 is arranged inside the first angle steel 9 along the angle bisector direction. A first through hole adapted to the connecting bolt 11 is opened at the corner of the second angle steel 10. A connecting piece 12 is arranged inside the second angle steel 10, and a second through hole adapted to the connecting bolt 11 is opened on the connecting piece 12; Manufacture a formwork 5 for the waterproof protective layer. The formwork 5 for the waterproof protective layer includes a first baffle and a second baffle that are perpendicularly connected to each other. A third through hole adapted to the connecting bolt 11 is arranged at the corner where the first baffle and the second baffle are connected; Pass the connecting bolt 11 through the third through hole and attach the first angle steel 9 to the outside of the first baffle and the second baffle. Sleeve the second angle steel 10 on the connecting bolt 11 through the first through hole and the second through hole, and attach the second angle steel 10 to the inside of the first baffle and the second baffle. Screw a nut onto the connecting bolt 11 and tighten it to assemble a detachable formwork for the waterproof protective layer; Pour the raft foundation cushion concrete according to the design construction requirements. After pouring, lay out the positioning line of the brick formwork on the raft foundation cushion, and build the brick formwork 1 according to the positioning line; Lay the waterproof coiled material 2 on the raft foundation cushion. The edge of the waterproof coiled material 2 is turned up to the top surface of the brick formwork 1 and covers the top surface; Pour the waterproof protective layer on the waterproof coiled material 2 on the raft foundation plane. Fit the isolation layer 3 on the outside of the waterproof coiled material 2 on the side of the raft foundation, and place the detachable formwork for the waterproof protective layer against the isolation layer 3 to form a protection; Bind the raft foundation steel bars 7. After binding, remove the detachable formwork for the waterproof protective layer, and complete the pouring of the raft foundation concrete 8 after removal.

[0016] During implementation, lifting lugs 13 are provided on the outer side of the first angle steel 9 to facilitate the lifting and removal of the detachable waterproof protective layer formwork.

[0017] The isolation layer 3 is a 0.4 mm thick polyethylene film waterproof isolation layer. The first baffle and the second baffle are made of 12 mm thick wood plywood. The connecting bolts 11 are M12 bolts.

[0018] A wooden square 4 is provided on the inner side of the first baffle. When the detachable waterproof protective layer formwork is placed in contact with the isolation layer 3, the wooden square 4 presses on the waterproof coiled material 2 on the top surface of the brick tire mold 1.

[0019] The connecting piece 12 forms a 45-degree angle with both sides of the second angle steel. The connecting piece 12 is made of 4 mm thick steel plate.

[0020] The solution provided by the present invention has a better protection effect compared with the traditional construction of the waterproof protective layer on the side of the raft foundation, and can effectively ensure the avoidance of damage to the waterproof layer during the binding of the raft foundation steel bars. Compared with the traditional construction of the waterproof protective layer on the side of the raft foundation, the construction difficulty is greatly reduced, the construction speed is accelerated, and the construction period is saved. The construction is simple, the materials are convenient to obtain, and it can be disassembled and reused, greatly saving materials and construction costs. The materials are light in weight and convenient to handle. After the construction of the concrete raft foundation is completed, the materials can be used as formwork for beams, columns, etc., achieving green construction and saving energy.

[0021] The above are only the preferred embodiments of the present invention that can be implemented, and do not limit the scope of the rights of the present invention. Any equivalent changes made by using the content of the specification and drawings of the present invention are included within the scope of the rights of the present invention.

Claims

1. A construction method for a waterproof protective layer with recyclable side of a raft foundation, characterized in that, Including: Fabricate an external corner fixture. The external corner fixture includes a first angle steel and a second angle steel. A connecting bolt is arranged inside the first angle steel along the angle bisector direction. A first through hole adapted to the connecting bolt is opened at the corner of the second angle steel. A connecting piece is arranged inside the second angle steel, and a second through hole adapted to the connecting bolt is opened on the connecting piece; Fabricate a waterproof protective layer formwork. The waterproof protective layer formwork includes a first baffle and a second baffle which are perpendicularly connected. A third through hole adapted to the connecting bolt is arranged at the corner where the first baffle and the second baffle are connected; Insert the connecting bolt through the third through hole and attach the first angle steel to the outer sides of the first baffle and the second baffle. Sleeve the second angle steel onto the connecting bolt through the first through hole and the second through hole, and attach the second angle steel to the inner sides of the first baffle and the second baffle. Screw a nut onto the connecting bolt and tighten it to assemble a detachable waterproof protective layer formwork; Pour the raft cushion concrete according to the design and construction requirements. After pouring, lay out the positioning line of the brick formwork on the raft cushion, and build the brick formwork according to the positioning line; Lay a waterproof coiled material on the raft cushion. The edge of the waterproof coiled material is turned up to the top surface of the brick formwork and covers the top surface; Pour the waterproof protective layer on the waterproof coiled material on the raft plane. Attach an isolation layer to the outside of the waterproof coiled material on the side of the raft, and place the detachable waterproof protective layer formwork against the isolation layer for protection; Bind the raft steel bars. After binding, remove the detachable waterproof protective layer formwork, and complete the pouring of the raft concrete after removal.

2. The construction method of the recyclable waterproof protective layer on the side of the raft slab according to claim 1, characterized in that, Lifting lugs are arranged on the outer side surface of the first angle steel.

3. The construction method of the recyclable waterproof protective layer on the side of the raft slab according to claim 1, characterized in that, The isolation layer adopts a 0.4mm thick polyethylene film waterproof isolation layer.

4. The construction method of the recyclable waterproof protective layer on the side of the raft foundation slab according to claim 1, wherein, A wooden square is arranged on the inner side surface of the first baffle. When placing the detachable waterproof protective layer formwork against the isolation layer, the wooden square presses on the waterproof coiled material on the top surface of the brick formwork.

5. The construction method of the recyclable waterproof protective layer on the side of the raft foundation slab according to claim 1, characterized in that, The connecting piece forms a 45-degree angle with both side surfaces of the second angle steel.

Images