A thermal insulation and waterproof floor structure and construction method thereof

Abstract

The invention discloses a thermal insulation waterproof floor structure and a construction method thereof. The thermal insulation waterproof floor structure comprises a concrete floor and a thermal insulation waterproof board. The thermal insulation waterproof board comprises a thermal insulation layer, a polymer cement mortar reinforcement layer and a filling groove provided on the lower surface of the thermal insulation layer. The concrete floor has a concrete filling portion extending into the filling groove to prevent the thermal insulation waterproof board from being separated from the concrete floor. The construction method comprises the steps of A: prefabricating the thermal insulation waterproof board B: pressing down the thermal insulation waterproof board before the concrete floor is solidified to form a concrete filling portion; C: after the concrete floor is solidified, filling building sealant between adjacent thermal insulation waterproof boards and attaching waterproof sheets; D: performing subsequent decoration and renovation construction. The thermal insulation waterproof floor structure has a simple structure, a firm connection structure, and has the advantages of thermal insulation, heat insulation and waterproofing. The construction method has fewer construction processes, lower difficulty, and can shorten the construction period.

Description

Technical Field

[0001] The present invention relates to the field of building technology, and in particular to a thermal insulation and waterproof floor structure and a construction method thereof. Background Art

[0002] As the country vigorously develops and promotes building energy conservation and green buildings, a large number of green and energy-saving buildings have been built. The roof is one of the important components of green and energy-saving buildings. In order to achieve load-bearing, heat preservation, waterproof and other functions, the roof structure is currently divided into two types: positive waterproof roof and inverted waterproof roof.

[0003] See also Figure 1 The positive waterproof roof is a waterproof layer arranged on the thermal insulation layer. The positive waterproof roof includes a structural layer 11', a slope leveling layer 12', an air barrier layer 13', a thermal insulation layer 14', a waterproof layer 15' and a protective layer 16' stacked in sequence from bottom to top; see Figure 2 The inverted waterproof roof, i.e., the waterproof layer is arranged under the thermal insulation layer, and includes a structural layer 11', a slope leveling layer 12', a waterproof layer 15', a thermal insulation layer 14' and a protective layer 16' stacked in sequence from bottom to top. Both upright and inverted roofs need to be manufactured layer by layer, and the manufacturing process is cumbersome, and it is difficult to ensure the thickness, flatness, and connection stability of each layer of material, etc. In particular, due to the different characteristics of each layer of material, hollowing and separation between each layer of material are likely to occur, the thermal insulation effect is easily deteriorated, and the overall waterproof effect is difficult to be satisfactory. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, one of the objects of the present invention is to provide a thermal insulation, heat insulation and waterproof floor structure with a simple structure and firm connection. The thermal insulation, heat insulation and waterproof floor structure can reduce the construction process, reduce safety hazards, and has good thermal insulation, heat insulation and waterproof performance; the second object is to provide a construction method for the above-mentioned thermal insulation, heat insulation and waterproof floor structure. The construction method has fewer construction processes and lower construction difficulty. It does not require construction of materials layer by layer, which can shorten the construction period and at the same time ensure the thermal insulation, heat insulation and waterproof performance of the prefabricated concrete floor.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A thermal insulation and waterproof floor structure comprises: a concrete floor and at least one thermal insulation and waterproof board arranged on the concrete floor, the thermal insulation and waterproof board comprises a thermal insulation layer, the upper surface of the thermal insulation layer is provided with a polymer cement mortar reinforcement layer, the polymer cement mortar reinforcement layer is provided with an alkali-resistant glass fiber mesh cloth, the lower surface of the thermal insulation layer is provided with a plurality of upwardly concave filling grooves, the lower surface of the thermal insulation and waterproof board is provided with an interface layer for enhancing the bonding force between the concrete floor and the thermal insulation layer, and the concrete floor has a concrete filling portion extending into the filling groove to prevent the thermal insulation and waterproof board from separating from the concrete floor. The thermal insulation and waterproof floor structure of the above structure is very simple in construction. During the curing process after the concrete earth floor is poured, the thermal insulation and waterproof board covering it plays a moisturizing role, reducing the risk of cracking of the concrete earth floor. Moreover, the concrete floor and the thermal insulation and waterproof board are tightly connected together through the cooperation of the concrete filling part and the filling groove. The connection structure is very stable, reducing safety hazards. Moreover, the thermal insulation and waterproof floor structure has good thermal insulation, heat insulation, waterproof and other effects.

[0007] As a preferred embodiment of the present invention, the filling groove is a dovetail groove opened on the thermal insulation layer and opening downward, and the two ends of the dovetail groove respectively penetrate the two opposite sides of the thermal insulation layer. The filling groove of the above structure helps the concrete to smoothly enter the filling groove, and ensures the structural strength of the concrete filling part, and guarantees the connection strength between the concrete floor and the thermal insulation waterproof board. In addition, since the dovetail groove has a small opening and a large bottom, the concrete filling part and the filling groove can maintain a bite state, preventing the concrete floor from separating from the thermal insulation waterproof board in the vertical direction.

[0008] In some embodiments of the present invention, the thermal insulation layer has a plurality of dovetail grooves spaced apart along its length direction and / or width direction.

[0009] Further preferably, the thermal insulation layer is provided with a plurality of dovetail grooves at intervals along its length and width directions, and all the dovetail grooves are distributed in a grid pattern of multiple rows and columns. Accordingly, a concrete filling portion distributed in a grid pattern is also formed on the upper surface of the concrete floor slab, thereby improving the connection strength between the concrete floor slab and the thermal insulation waterproof board, and avoiding hollowing phenomenon between the thermal insulation waterproof board and the concrete floor slab at a certain position.

[0010] In other embodiments, the shape of the filling groove is not limited to the dovetail groove. As long as the opening of the filling groove and the cross-sectional area of ​​the concrete filling portion gradually increase from bottom to top, the effect of preventing the concrete floor and the thermal insulation and waterproof board from separating from each other can be achieved.

[0011] As a further preferred embodiment of the present invention, a glass fiber mesh cloth is provided inside the polymer cement mortar reinforcement layer.

[0012] In some embodiments of the present invention, the thermal insulation layer is an extruded polystyrene foam board or a molded polystyrene foam board or a foam glass board or a polyurethane foam board or a phenolic foam insulation board. All of the above materials are lightweight thermal insulation and waterproof materials with low cost.

[0013] The invention also discloses a method for constructing a thermal insulation and waterproof floor structure, comprising the following steps:

[0014] A: Prefabricated thermal insulation waterproof board, polymer cement mortar is applied on the upper surface of the thermal insulation layer to obtain a polymer cement mortar reinforcement layer, an alkali-resistant glass fiber mesh cloth is arranged inside the polymer cement mortar reinforcement layer, a plurality of upwardly concave filling grooves are arranged on the lower surface of the thermal insulation layer, and an interface agent is applied on the lower surface of the thermal insulation layer and the surface of the filling grooves to obtain an interface layer;

[0015] B: Casting a concrete floor slab, before the concrete floor slab is solidified, leveling the concrete floor slab according to construction requirements and laying the thermal insulation and waterproof board obtained in step A, so that the interface layer is in close contact with the thermal insulation and waterproof board, and when laying the thermal insulation and waterproof board, applying downward pressure so that the filling groove enters the unsolidified concrete floor slab, and a part of the concrete floor slab enters the filling groove to form the concrete filling part;

[0016] C: After the concrete floor is cured to reach the strength, in order to improve the waterproof effect between adjacent thermal insulation and waterproof boards, the gaps between adjacent thermal insulation and waterproof boards are filled with building sealant. In order to further improve the waterproof performance between adjacent thermal insulation and waterproof boards, after the building sealant is solidified, a waterproof sheet is attached to the connection between adjacent thermal insulation and waterproof boards;

[0017] D: Carry out subsequent decorative construction on the surface of the exposed polymer cement mortar reinforcement layer and the surface of the waterproof sheet.

[0018] The thermal insulation and waterproof floor structure of the present invention does not need to be constructed layer by layer during construction, which eliminates the need for multiple leveling processes and can effectively reduce construction errors. In addition, the number of construction processes is relatively small, which can shorten the construction period and ensure the thermal insulation, heat insulation and waterproof performance of the concrete floor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a structural diagram of a traditional upright waterproof roof;

[0021] Figure 2 This is a schematic diagram of the structure of a traditional inverted waterproof roof;

[0022] Figure 3 It is a structural schematic diagram of an embodiment of the thermal insulation and waterproof floor structure of the present invention;

[0023] Figure 4 It is a structural schematic diagram of an embodiment of a thermal insulation and waterproof board;

[0024] Figure 5 It is a structural schematic diagram of another embodiment of a thermal insulation and waterproof board. DETAILED DESCRIPTION

[0025] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0026] Ginseng Figure 3 A thermal insulation and waterproof floor structure comprises: a concrete floor 10 and at least one thermal insulation and waterproof board 20 arranged on the concrete floor 10, the thermal insulation and waterproof board 20 comprises a thermal insulation layer 21, the upper surface of the thermal insulation layer 21 is provided with a polymer cement mortar reinforcement layer 22, the polymer cement mortar reinforcement layer 22 is provided with an alkali-resistant glass fiber mesh cloth, the lower surface of the thermal insulation layer 21 is provided with a plurality of upwardly concave filling grooves 23, the lower surface of the thermal insulation and waterproof board 20 is provided with an interface layer 24 closely attached to the concrete floor 10, and the concrete floor 10 has a concrete filling part 11 extending into the filling groove 23 to prevent the thermal insulation and waterproof board 20 from being separated from the concrete floor 10. The thermal insulation and waterproof floor structure of the above structure is very simple in construction. During the curing process of the concrete floor 10 after pouring, the thermal insulation and waterproof board 20 covering it plays a moisturizing role, reducing the risk of cracking of the concrete floor 10. Moreover, through the engagement of the concrete filling part 11 with the filling groove 23 and the bonding of the interface layer 24 with the concrete floor 10, the concrete floor 10 and the thermal insulation and waterproof board 20 are tightly connected together. The connection structure is very stable, reducing the risk of hollowing and cracking. Moreover, the thermal insulation and waterproof floor structure has good thermal insulation, heat insulation, waterproof and other effects.

[0027] See also Figure 4As a preferred embodiment of the present invention, the filling groove 23 is a dovetail groove opened on the thermal insulation layer 21 and opening downward, and the two ends of the dovetail groove respectively penetrate the two opposite sides of the thermal insulation layer 21. The filling groove 23 of the above structure helps the concrete to smoothly enter the filling groove 23, and ensures the structural strength of the concrete filling part 11, and guarantees the connection strength between the concrete floor 10 and the thermal insulation waterproof board 20. In addition, since the opening of the dovetail groove is small and the bottom is large, the concrete filling part 11 and the filling groove 23 can maintain a bite state, preventing the concrete floor 10 and the thermal insulation waterproof board 20 from separating in the vertical direction.

[0028] In some embodiments of the present invention, the thermal insulation layer 21 has a plurality of dovetail grooves spaced apart along its length direction and / or width direction. When the thermal insulation layer 21 has a plurality of dovetail grooves spaced apart along its length direction or width direction, the structure of the thermal insulation waterproof board 20 is as follows: Figure 4 shown.

[0029] See also Figure 5 It is further preferred that the thermal insulation layer 21 is provided with a plurality of dovetail grooves at intervals along its length and width directions, and all the dovetail grooves are distributed in a mesh pattern of multiple rows and columns. Accordingly, a mesh-distributed concrete filling portion 11 is also formed on the upper surface of the concrete floor 10, thereby improving the connection strength between the concrete floor 10 and the thermal insulation waterproof board 20, and avoiding hollowing between the thermal insulation waterproof board 20 and the concrete floor 10 at a certain position.

[0030] Of course, in other embodiments, the shape of the filling groove 23 is not limited to the dovetail groove shape. As long as the opening of the filling groove 23 and the cross-sectional area of ​​the concrete filling portion 11 gradually increase from bottom to top, the effect of preventing the concrete floor 10 and the thermal insulation and waterproof board 20 from separating from each other can be achieved.

[0031] As a further preferred embodiment of the present invention, a glass fiber mesh cloth is provided inside the polymer cement mortar reinforcement layer 22 .

[0032] In some embodiments of the present invention, the thermal insulation layer 21 is an extruded polystyrene foam board or a molded polystyrene foam board or a foam glass board or a polyurethane foam board or a phenolic foam insulation board. All of the above materials are lightweight thermal insulation and waterproof materials with low cost.

[0033] See also Figure 3 The present invention also discloses a method for constructing a thermal insulation and waterproof floor structure, comprising the following steps:

[0034] A: A prefabricated thermal insulation waterproof board 20, wherein a polymer cement mortar is applied on the upper surface of a thermal insulation layer 21 to obtain a polymer cement mortar reinforcement layer 22, wherein an alkali-resistant glass fiber mesh cloth is provided inside the polymer cement mortar reinforcement layer 22, and a plurality of upwardly concave filling grooves 23 are provided on the lower surface of the thermal insulation layer 21, and an interface agent is applied on the lower surface of the thermal insulation layer 21 and the surface of the filling grooves 23 to obtain an interface layer 24;

[0035] B: Casting the concrete floor 10. Before the concrete floor 10 is solidified, the concrete floor 10 is leveled according to construction requirements and the thermal insulation and waterproof board 20 obtained in step A is laid, so that the interface layer 24 is in close contact with the thermal insulation and waterproof board 20. When laying the thermal insulation and waterproof board 20, downward pressure is applied to make the filling groove 23 enter the unsolidified concrete floor 10, and a part of the concrete floor 10 enters the filling groove 23 to form the concrete filling part 11;

[0036] C: After the concrete floor 10 is cured to reach the required strength, in order to improve the waterproof effect between the adjacent thermal insulation and waterproof boards 20, the gaps between the adjacent thermal insulation and waterproof boards 20 are filled with building sealant 3. In order to further improve the waterproof performance between the adjacent thermal insulation and waterproof boards 20, after the building sealant 3 is solidified, the waterproof sheet 4 is attached to the connection between the adjacent thermal insulation and waterproof boards 20;

[0037] D: Perform subsequent decoration and renovation construction on the surface of the exposed polymer cement mortar reinforcement layer 22 and the surface of the waterproof sheet 4.

[0038] The thermal insulation and waterproof floor structure of the present invention does not need to be constructed layer by layer during construction, which eliminates the need for multiple leveling processes and can effectively reduce construction errors. In addition, the number of construction processes is relatively small, which can shorten the construction period and ensure the thermal insulation, heat insulation and waterproof performance of the concrete floor 10.

[0039] The above embodiments are only preferred embodiments of the present invention, and the present invention may also have other embodiments, such as reasonably combining the technical solutions recorded in multiple embodiments. Those skilled in the art may also make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope set by the claims of this application.

Claims

1. A method for constructing a thermal insulation and waterproof floor structure, characterized in that , comprising: a concrete floor (10) and at least one thermal insulation and waterproof board (20) arranged on the concrete floor (10), the thermal insulation and waterproof board (20) comprising a thermal insulation layer (21), the upper surface of the thermal insulation layer (21) being provided with a polymer cement mortar reinforcement layer (22), the polymer cement mortar reinforcement layer (22) being provided with an alkali-resistant glass fiber mesh cloth, the lower surface of the thermal insulation layer (21) being provided with a plurality of upwardly concave filling grooves (23), the lower surface of the thermal insulation and waterproof board (20) being provided with an interface layer (24) closely attached to the concrete floor (10), and the concrete floor (1 0) having a concrete filling portion (11) extending into the filling groove (23) to prevent the thermal insulation and waterproof board (20) from separating from the concrete floor (10); the filling groove (23) is a dovetail groove opened on the thermal insulation layer (21) and opening downward, and the two ends of the dovetail groove respectively penetrate the two opposite sides of the thermal insulation layer (21); the thermal insulation layer (21) is provided with a plurality of dovetail grooves at intervals along its length direction and width direction, and all the dovetail grooves are distributed in a mesh shape of multiple rows and columns; the cross-sectional areas of the opening of the filling groove (23) and the concrete filling portion (11) gradually increase from bottom to top; The construction method of the thermal insulation and waterproof floor structure comprises the following steps: A: a prefabricated thermal insulation waterproof board (20), wherein a polymer cement mortar is applied on the upper surface of a thermal insulation layer (21) to obtain a polymer cement mortar reinforcement layer (22), an alkali-resistant glass fiber mesh cloth is provided inside the polymer cement mortar reinforcement layer (22), a plurality of upwardly concave filling grooves (23) are provided on the lower surface of the thermal insulation layer (21), and an interface agent is applied on the lower surface of the thermal insulation layer (21) and the surface of the filling grooves (23) to obtain an interface layer (24); B: Casting the concrete floor (10), before the concrete floor (10) is solidified, leveling the concrete floor (10) according to construction requirements and laying the thermal insulation and waterproof board (20) obtained in step A, so that the interface layer (24) is in close contact with the thermal insulation and waterproof board (20), and when laying the thermal insulation and waterproof board (20), downward pressure is applied so that the filling groove (23) enters the unsolidified concrete floor (10), and a part of the concrete floor (10) enters the filling groove (23) to form the concrete filling part (11); C: After the concrete floor slab (10) is cured to reach a certain strength, the gap between the adjacent thermal insulation and waterproof panels (20) is filled with a building sealant (3), and after the building sealant (3) is solidified, a waterproof sheet (4) is attached to the connection between the adjacent thermal insulation and waterproof panels (20); D: Perform subsequent decoration and renovation construction on the surface of the exposed polymer cement mortar reinforcement layer (22) and the surface of the waterproof sheet (4).

2. A method for constructing a thermal insulation and waterproof floor structure according to claim 1, characterized in that: The thermal insulation layer (21) is an extruded polystyrene foam plastic board or a molded polystyrene foam plastic board or a foam glass board or a polyurethane foam plastic board or a phenolic foam insulation board.

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