Teaching building roof concrete self-waterproof structure

Abstract

The utility model relates to a teaching building roof concrete self-waterproof structure which comprises a first pouring area and a second pouring area, a steel reinforcement framework is arranged in the first pouring area and the second pouring area in a communicating mode, a connecting seam is arranged at the connecting position of the first pouring area and the second pouring area, and a water stop embedded plate is arranged in the connecting seam. A sealing groove is formed in the upper portion of the connecting seam, a sealing belt is arranged in the sealing groove, a reinforcing groove is formed in the upper portion of the sealing groove, concave grooves are formed in the two sides of the reinforcing groove, waterproof layers are laid on the inner bottom faces of the reinforcing groove and the concave grooves, a first mortar layer is arranged on the upper portions of the waterproof layers, and a connecting layer is arranged on the upper portion of the first mortar layer. A second mortar layer is arranged on the connecting layer; cushion columns are pre-embedded in the positions, corresponding to the concave grooves, of the first mortar layer, and the connecting layer is fixed by arranging gaskets and cement nails at the positions of the cushion columns; according to the utility model, no leakage of the joining seam can be ensured, so that the self-waterproof effect of the roof concrete is achieved.

Description

Technical Field

[0001] The utility model relates to a self - waterproof structure of the concrete of a teaching building roof, which is applied in the technical field of self - waterproof structures of reinforced concrete. Background Technique

[0002] As is well known, the self - waterproof of concrete refers to the ability of concrete to withstand water penetration, which is a measure of impermeability and is related to the compactness of concrete. Generally, it is achieved by reducing the W / B ratio of concrete and adding admixtures such as ground granulated blast - furnace slag, fly ash, especially silica fume, or adding expansion agents to replace part of the cement to reduce and improve the size and pore structure of internal capillary voids. Usually, the expression is made by measuring the anti - seepage pressure (permeability coefficient value) of concrete, the electric flux (coulomb value) of concrete, or the diffusion coefficient value of Cl-. However, the above - mentioned ways to improve compactness are achieved by increasing the rigidity of concrete, reducing the flexibility (flexural strength), and increasing the risk of dry - shrinkage cracking. While improving the waterproof and anti - seepage performance of concrete, it also reduces the elastic fatigue durability during the service life of concrete. Therefore, the improvement of the anti - seepage performance of concrete is limited. Especially in large - area construction, for construction expansion joints, settlement joints, and the treatment of concrete buildings under different environmental conditions, relying on the self - waterproof of concrete cannot meet the waterproof requirements, and specific treatments need to be carried out according to the waterproof requirements of concrete buildings and the environment they are in.

[0003] Moreover, in the actual construction scenario and later application, the floor slabs of high - rise building roofs are generally poured integrally at one time. After the concrete is poured and solidified, different degrees of shrinkage and swelling will occur inside, that is, internal stress appears in the floor slab. Coupled with the influence of factors such as the natural environment of exposure to wind, sun, and alternating cold and heat in the later use, the roof surfaces of some buildings with large roof areas such as teaching buildings are very easy to crack, and then cause leakage. Content of the Utility Model

[0004] In order to solve the above - mentioned technical problems, the utility model provides a self - waterproof structure of the concrete of a teaching building roof. By setting a first pouring area and a second pouring area poured successively, and designing a water - blocking embedded board in the middle of the joint, and a sealing belt filled with foaming glue, a waterproof layer, and a mortar connection layer above the joint, it is ensured that the joint itself does not leak, so as to achieve the effect of self - waterproof of the roof concrete.

[0005] The technical solution of the utility model is as follows:

[0006] A self-waterproof concrete structure for the roof of a teaching building comprises a first pouring area and a second pouring area, wherein a steel bar skeleton is provided in the first pouring area and the second pouring area, wherein the junction of the first pouring area and the second pouring area is a joint, wherein a water-stop embedded plate is provided in the joint, wherein a sealing groove is provided at the upper part of the joint, wherein a sealing belt is provided in the sealing groove, wherein a reinforcement groove is provided at the upper part of the sealing groove, wherein recessed grooves are provided on both sides of the reinforcement groove, wherein waterproof layers are paved on the inner bottom surfaces of the reinforcement groove and the recessed groove, wherein a first mortar layer is provided at the upper part of the waterproof layer, wherein a connecting layer is provided at the upper part of the first mortar layer, wherein a second mortar layer is provided at the upper part of the connecting layer; wherein a pad column is pre-buried at a position corresponding to the recessed groove and the first mortar layer, wherein the connecting layer is fixed at the position of the pad column by providing a gasket and cement nails.

[0007] The first pouring area is the first pouring area, the second pouring area is the later pouring area, the steel frame is embedded in the first pouring area, half of the water-stop embedded plate is embedded in the first pouring area, and the other half of the water-stop embedded plate is naturally embedded in the second pouring area when pouring in the second pouring area.

[0008] The water-stop inner embedded plate is arranged in the middle of the joint seam, the water-stop inner embedded plate and the joint seam are arranged in a vertical structure, and both sides of the water-stop inner embedded plate are bent upwards.

[0009] The sealing groove is arranged at the upper end of the joint seam, and the sealing groove is filled with foam glue, and the expanded foam glue is the sealing belt.

[0010] A reinforcement groove with a width greater than that of the sealing groove is arranged above the sealing groove, the reinforcement groove is connected with the concave grooves on both sides, and the inner bottom surface of the reinforcement groove is flush with the top surface of the concave groove.

[0011] The waterproof layer is made of SBS modified asphalt waterproofing coiled material, and the connecting layer is specifically glass fiber mesh cloth.

[0012] The first mortar layer is at the same height as the cushion column, the connecting layer is fixed to the top surface of the first mortar layer by gaskets and cement nails, and the top surface of the second mortar layer is flush with the top surfaces of the first pouring area and the second pouring area.

[0013] The utility model has the following beneficial effects:

[0014] The utility model divides the roof slab into several areas by adopting a staged pouring construction method on the roof slab. Therefore, the pouring work of the second pouring area is carried out after the pouring of the first pouring area is completed and basically solidified, and the shrinkage and expansion deformation can be eliminated by utilizing the interval gap, thereby avoiding the generation of obvious internal stress; further, a water-stop embedded plate is arranged in the middle of the joint, a sealing groove and a sealing belt are arranged on the upper part of the joint, and a reinforcement groove, a waterproof layer and a first mortar layer and a second mortar layer are arranged on the upper part of the sealing groove, which ensures that the joint joint itself does not leak, thereby realizing self-waterproofing of the roof concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0017] The reference numerals in the figure are as follows:

[0018] 1. The first pouring area; 2. The second pouring area; 3. The joint; 4. The water-stop embedded plate; 5. The steel skeleton; 6. The sealing groove; 61. The sealing tape; 7. The reinforcement groove; 8. The recessed groove; 9. The waterproof layer; 10. The connecting layer; 11. The first mortar layer; 12. The second mortar layer; 13. The cushion column; 14. The gasket; 15. The cement nail. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] See also Figures 1 to 2 The concrete self-waterproof structure of the roof of a teaching building comprises a first pouring area 1 and a second pouring area 2, wherein a steel bar skeleton 5 is provided in the first pouring area 1 and the second pouring area 2, and a joint 3 is formed between the first pouring area 1 and the second pouring area 2, wherein a water-stop embedded plate 4 is provided in the joint 3, a sealing groove 6 is provided at the upper part of the joint 3, a sealing belt 61 is provided in the sealing groove 6, a reinforcement groove 7 is provided at the upper part of the sealing groove 6, and a concave groove 8 is provided on both sides of the reinforcement groove 7, and a waterproof layer 9 is paved on the inner bottom surfaces of the reinforcement groove 7 and the concave groove 8, a first mortar layer 11 is provided at the upper part of the waterproof layer 9, a connecting layer 10 is provided at the upper part of the first mortar layer 11, and a second mortar layer 12 is provided at the upper part of the connecting layer 10; a cushion column 13 is pre-buried at the position corresponding to the concave groove 8, and the connecting layer 10 is fixed by arranging a gasket 14 and a cement nail 15 at the position of the cushion column 13.

[0021] The first pouring area 1 is the first pouring area, and the second pouring area 2 is the later pouring area, that is, along the length direction of the floor slab, an empty interval area is reserved at intervals. After the first pouring area 1 is poured and partially solidified, the secondary pouring construction is carried out in the interval area, and the part of the secondary pouring construction is the second pouring area 2; the steel skeleton 5 is pre-buried in the first pouring area 1, and half of the water-stop embedded plate 4 is pre-buried in the first pouring area 1. The other half of the water-stop embedded plate 4 is naturally embedded in the second pouring area 2 when the second pouring area 2 is poured.

[0022] The water-stop embedded plate 4 is arranged in the middle of the joint 3. The water-stop embedded plate 4 is vertically structured with respect to the joint 3, directly blocking the joint 3 structurally. Both sides of the water-stop embedded plate 4 are bent upward. The upward bending on both sides enhances the rigidity strength of the water-stop embedded plate 4 itself on the one hand, and plays a guiding role on the other hand, further preventing the water above the water-stop embedded plate 4 from seeping downward.

[0023] The sealing groove 6 is arranged at the upper end of the joint 3. The sealing groove 6 is filled with foaming glue, and the expanded foaming glue is the sealing strip 61. The sealing strip 61 can densely fill the groove body, playing a role of filling and sealing.

[0024] Above the sealing groove 6, a reinforcement groove 7 with a width greater than that of the sealing groove 6 is arranged. The reinforcement groove 7 communicates with the sunken grooves 8 on both sides. The inner bottom surface of the reinforcement groove 7 is flush with the top surface of the sunken groove 8.

[0025] The waterproof layer 9 uses SBS modified asphalt waterproof coiled material. The waterproof layer 9 plays a basic role of waterproof isolation. The connecting layer 10 is specifically a fiberglass mesh cloth. The function of the connecting layer 10 is to enhance the connectivity of the mortar inside the reinforcement groove 7 and prevent the mortar from cracking.

[0026] The first mortar layer 11 has the same height as the cushion column 13. The connecting layer 10 is fixed on the top surface of the first mortar layer 11 through the gasket 14 and the cement nail 15. The top surface of the second mortar layer 12 is flush with the top surfaces of the first pouring area 1 and the second pouring area 2.

[0027] The working principle of the present utility model:

[0028] When using the utility model, first, concrete is poured into the first pouring area 1. Before pouring, the steel bar framework 5 and the water-stop embedded plate 4 are pre-buried. After the construction of the first pouring area 1 is completed and the concrete is basically solidified, secondary pouring construction is carried out in the second pouring area 2. After both the first pouring area 1 and the second pouring area 2 are solidified, a sealing groove 6 is opened at the upper end of the joint 3, and then foaming glue is filled in the sealing groove 6. The expanded foaming glue forms the sealing strip 61 structure. The sealing strip 61 can densely fill the groove body and play a role in filling and sealing. Further, a reinforcement groove 7 with a width greater than that of the sealing groove 6 is opened above the sealing strip 61. Concave grooves 8 are designed on both sides of the reinforcement groove 7. A waterproof layer 9 is laid on the inner bottom surfaces of the reinforcement groove 7 and the concave groove 8. The waterproof layer 9 uses SBS modified asphalt waterproof coiled material. The waterproof layer 9 plays a basic role in waterproof isolation. A first mortar layer 11 is poured above the waterproof layer 9. Before pouring, cushion columns 13 are embedded in the first mortar layer 11. Further, a connecting layer 10 is arranged above the first mortar layer 11. The connecting layer 10 is a fiberglass mesh cloth. The function of the connecting layer 10 is to improve the connectivity of the mortar in the reinforcement groove 7 and prevent the mortar from cracking. In order to tension and fix the connecting layer 10 during construction, after the first mortar layer 11 is solidified, the connecting layer 10 is laid and fixed at the position of the cushion column 13 with gaskets 14 and cement nails 15. The cement nails 15 can be selected to be only nailed into the cushion column 13 or further nailed into the floor structure downward. Finally, a second mortar layer 12 is poured, and the second mortar layer 12 is flush with the upper surfaces of the first pouring area 1 and the second pouring area 2.

[0029] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, are similarly included in the patent protection scope of the present utility model.

Claims

1. A concrete self-waterproof structure for the roof of a teaching building, characterized in that: The invention comprises a first pouring area (1) and a second pouring area (2), wherein a steel bar skeleton (5) is provided in the first pouring area (1) and the second pouring area (2), wherein the connection point between the first pouring area (1) and the second pouring area (2) is a connection joint (3), wherein a water-stop inner embedded plate (4) is provided in the connection joint (3), wherein a sealing groove (6) is provided at the upper part of the connection joint (3), wherein a sealing belt (61) is provided in the sealing groove (6), wherein a reinforcement groove (7) is provided at the upper part of the sealing groove (6), wherein the reinforcement groove (7) is provided with a concave groove on both sides. (8), the inner bottom surfaces of the reinforcement groove (7) and the sunken groove (8) are both paved with a waterproof layer (9), a first mortar layer (11) is arranged on the upper part of the waterproof layer (9), a connecting layer (10) is arranged on the upper part of the first mortar layer (11), and a second mortar layer (12) is arranged on the upper part of the connecting layer (10); a cushion column (13) is pre-buried at a position corresponding to the sunken groove (8), and the position of the cushion column (13) is fixed to the connecting layer (10) by arranging a gasket (14) and a cement nail (15).

2. A teaching building roof concrete self-waterproof structure as claimed in claim 1, characterized in that: The first pouring area (1) is the first pouring area, the second pouring area (2) is the second pouring area, the steel frame (5) is pre-buried in the first pouring area (1), half of the water-stop embedded plate (4) is pre-buried in the first pouring area (1), and the other half of the water-stop embedded plate (4) is naturally embedded in the second pouring area (2) when the second pouring area (2) is poured.

3. The self-waterproof concrete roof structure of a teaching building as claimed in claim 1, characterized in that: The water-stop inner panel (4) is arranged in the middle of the connecting seam (3), the water-stop inner panel (4) and the connecting seam (3) are arranged in a vertical structure, and both sides of the water-stop inner panel (4) are bent upwards.

4. The self-waterproof concrete roof structure of a teaching building as claimed in claim 1, characterized in that: The sealing groove (6) is arranged at the upper end of the connecting seam (3), and the sealing groove (6) is filled with foam glue, and the expanded foam glue is the sealing tape (61).

5. A teaching building roof concrete self-waterproof structure as claimed in claim 4, characterized in that: A reinforcement groove (7) having a width greater than that of the sealing groove (6) is arranged above the sealing groove (6); the reinforcement groove (7) is connected to the concave grooves (8) on both sides; and the inner bottom surface of the reinforcement groove (7) is flush with the top surface of the concave groove (8).

6. The self-waterproof concrete roof structure of a teaching building as claimed in claim 1, characterized in that: The waterproof layer (9) is made of SBS modified asphalt waterproof coiled material, and the connecting layer (10) is specifically glass fiber mesh cloth.

7. The self-waterproof concrete roof structure of a teaching building as claimed in claim 1, characterized in that: The first mortar layer (11) is at the same height as the cushion column (13); the connection layer (10) is fixed on the top surface of the first mortar layer (11) by means of a gasket (14) and a cement nail (15); and the top surface of the second mortar layer (12) is flush with the top surfaces of the first pouring area (1) and the second pouring area (2).

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