Heat preservation structure of existing roof of building

Abstract

The utility model discloses a heat preservation structure of a building existing roof in the technical field of roof rebuilding, which comprises a floor slab, a repairing layer, an upper layer waterproof pad and a plurality of separation stacking blocks, the repairing layer is laid and poured on the top of the floor slab, the separation stacking blocks are connected in a criss-cross mode to form a latticed structure, and heat preservation padding is poured between the upper layer waterproof pad and the separation stacking blocks. According to the building structure, garbage demolished by an original building can be utilized, the characteristics of the existing building structure are fully combined, a method for rebuilding the existing roof is provided, the original roof structure of the existing building is demolished and reinforced, the structure is provided with multiple layers of waterproof guarantees, the structure is simple, the construction is convenient, and the construction cost is low. Heat preservation and waterproof performance are integrated, reliability is high, the structure is stable, and maintenance is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of roof renovation, in particular to a thermal insulation structure of an existing roof of a building. Background Art

[0002] As the service life of buildings increases, they will gradually age. The aging of buildings will be accompanied by the fact that the materials of existing building roofs are not durable enough and the construction level is low, and the roofs often leak and the insulation fails. Roof leakage and wall leakage are the most frequent problems.

[0003] With the rapid growth of the construction industry, the amount of construction waste associated with it has also been steadily increasing, including waste generated by demolition, new construction and renovation activities. The total amount of these construction wastes is huge. By recycling and reusing these construction wastes and converting them into recycled materials required for construction projects, resource reuse and environmental sustainable development can be achieved. Therefore, it is particularly important to convert construction waste into recycled aggregates and utilize them.

[0004] At present, there are studies on the use of recycled aggregates to prepare foamed concrete and use it in building materials; however, most of the research focuses on foamed concrete used in road and bridge subgrades, and there are fewer studies on foamed concrete and its construction process for the demolition or renovation of existing buildings that integrates insulation and waterproofing. This is mainly because the weight of the recycled aggregate itself makes it less compatible with the foam cement slurry system, which makes it easy for particles to sink and disperse unevenly, especially for the preparation of lightweight concrete. At the same time, the impurities in the recycled aggregate make it easy to become a weak link in the entire cement slurry system, reducing the strength of the building prepared with it as raw material.

[0005] Based on this, the utility model designs a thermal insulation structure of an existing roof of a building to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a thermal insulation structure for an existing roof of a building, wherein a movable isolation plate is vertically inserted at the top position of a partition material pile inside the thermal insulation filler, and the building structure can utilize the garbage from the demolition of the original building, and fully combine the characteristics of the existing building structure, provide a method for renovating the existing roof, dismantle the original roof structure of the existing building, and reinforce it, the structure is provided with multiple layers of waterproof protection, integrates the thermal insulation and waterproof performances into one, has strong reliability, stable structure, simple maintenance, the waterproof material is closely attached to the upper concrete protection plate, effectively avoids the upper waterproof pad from being damaged by the external environment, and prolongs the waterproof life; and it consumes a large amount of demolition garbage from the roof of the existing building, reduces the cost of disposal of construction waste, and effectively prolongs the original service life of the existing building.

[0007] The utility model is implemented as follows: a thermal insulation structure of an existing roof of a building, comprising:

[0008] Floor slabs, patching layers, upper waterproofing pads and separation blocks;

[0009] The floor slab is a horizontal layer of a building body, and a plurality of crisscrossing main beams and secondary beams are arranged at the bottom of the floor slab;

[0010] The repair layer is a waterproof concrete structure, the repair layer is laid and poured on the top of the floor slab, and the top of the repair layer is horizontal;

[0011] The partition blocks are integral stone-mortar-shaped structures formed by stacking aggregates. The partition blocks are laid directly above the main beam and the secondary beam. A plurality of the partition blocks are crisscrossed and connected to form a grid-like structure.

[0012] The upper waterproof pad is a waterproof pad, which is evenly paved on the top of the partition block, and a thermal insulation filler is poured between the upper waterproof pad and the partition block. A crack wire is vertically inserted inside the thermal insulation filler, and the lower end of the crack wire is connected to the top of the partition block, and the upper end of the crack wire is exposed on the top of the thermal insulation filler;

[0013] A protection plate is also laid on the top of the upper waterproof pad, and a water guide groove is arranged on the top of the protection plate.

[0014] Furthermore, the repair layer is waterproof mortar.

[0015] Furthermore, the upper waterproof pad is a waterproof coiled material pad;

[0016] The protection plate is a concrete floor, and the water guide groove is a water guide groove which is recessed downward on the top surface of the protection plate.

[0017] Furthermore, concrete mortar is poured inside the partition blocks, and the partition blocks are poured into an integral structure by the concrete mortar;

[0018] The thermal insulation filler is foam concrete;

[0019] The thickness of the thermal insulation filler is greater than the thickness of the partitioning block, the top of the partitioning block is not in contact with the upper waterproof pad, and the height h of the crack wire is not less than 10 cm.

[0020] The beneficial effects of the utility model are as follows: 1. The utility model divides the roof floor into multiple smaller areas through the structure of the partitioned blocks, and fills these areas with thermal insulation fillers. The thermal insulation fillers made of foam concrete are poured in these small areas, which can effectively avoid large-scale cracking of the thermal insulation fillers, ensure its structural integrity, and increase the overall support force of the structure, so as not to affect the laying of the upper waterproof pad on the upper layer;

[0021] 2. The partition blocks of this device are all paved directly above the main beam and the secondary beam, so there is no need for the existing old floor slab to bear the partition blocks, which does not affect the floor slab strength of the existing building. The structure is more stable, and the bearing force acts directly on the main beam and the secondary beam, so the bearing force is not easy to damage the existing building floor slab;

[0022] 3. This device adds a crack conductor, which can guide cracks inside the thermal insulation filler. When the thermal insulation filler filled with foam concrete material is hydrated and solidified, cracks will naturally appear, and the cracks are generated along the top of the separating pile. These cracks will form vents, and the vents directly act on the inside of the thermal insulation filler, making it easier for the inside of the thermal insulation filler to solidify and form, and will not cause the entire thermal insulation filler layer to collapse together. In addition, the cracks guided by these crack conductors are hollow cracks, which naturally form thermal expansion joints, which not only play a role in cold and heat buffering, but also can form an air isolation layer, and the thermal insulation effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the distribution structure of the partition blocks on the roof top of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of a partitioned stack of the utility model;

[0026] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1-floor slab, 11-main beam, 12-secondary beam, 2-repairing layer, 3-upper waterproof pad, 31-protective plate, 32-water guide trough, 4-partitioning blocks, 41-crack conductor, 42-thermal insulation filler. DETAILED DESCRIPTION

[0029] See also Figures 1 to 3 As shown, the utility model provides a thermal insulation structure for an existing roof of a building. In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings in the specification and specific implementation methods.

[0030] In a specific embodiment of the technical solution of the utility model:

[0031] It includes a floor slab 1, a repair layer 2, an upper waterproof pad 3 and a partitioning pile 4;

[0032] The floor 1 is a horizontal layer of the building body, and a plurality of crisscrossing main beams 11 and secondary beams 12 are arranged at the bottom of the floor 1;

[0033] The repair layer 2 is a waterproof concrete structure, the repair layer 2 is a waterproof mortar, the repair layer 2 is laid and poured on the top of the floor slab 1, and the top of the repair layer 2 is horizontal;

[0034] The partitioning blocks 4 are integral stone-mortar-shaped structures formed by stacking aggregates. The partitioning blocks 4 are laid directly above the main beam 11 and the secondary beam 12. A plurality of partitioning blocks 4 are crisscrossed and connected to form a grid-like structure.

[0035] The upper waterproof pad 3 is a waterproof pad, and the upper waterproof pad 3 is a waterproof coiled material cushion;

[0036] The protection plate 31 is a concrete floor, the upper waterproof pad 3 is evenly paved on the top of the partition block 4, and a thermal insulation filler 42 is poured between the upper waterproof pad 3 and the partition block 4. A crack wire 41 is vertically inserted inside the thermal insulation filler 42, and the lower end of the crack wire 41 is connected to the top of the partition block 4, and the upper end of the crack wire 41 is exposed on the top of the thermal insulation filler 42; concrete mortar is poured inside the partition block 4, and the partition block 4 is poured into an integral structure by the concrete mortar;

[0037] The thermal insulation filler 42 is foamed concrete;

[0038] The thickness of the heat-insulating filler 42 is greater than that of the partitioning block 4. The top of the partitioning block 4 does not contact the upper waterproof pad 3, and the height h of the crack wire 41 is not less than 10 cm. The partitioning block 4 is a loose stone-shaped structure made of aggregates. The aggregates can be recycled bricks. Concrete mortar is poured inside the partitioning block 4, so that the partitioning block 4 solidifies into an integral force-bearing structure. Figure 1 As shown, the floor 1 is connected in a grid-like partition structure by a plurality of partition blocks 4 in a crisscross manner.

[0039] A protection plate 31 is also laid on the top of the upper waterproof pad 3 , and a water guide groove 32 is arranged on the top of the protection plate 31 . The water guide groove 32 is a water guide groove that is recessed downward on the top surface of the protection plate 31 .

[0040] It should be noted that:

[0041] 1. The partitioning block 4 is formed by stacking stones along the beam body. The top of the partitioning block 4 is the thinnest point of the thermal insulation filler 42 layer, and its thickness is h. The partitioning block 4 provides thermal insulation and is filled with foam concrete. Foam concrete will have pores and cracks when solidifying. Generally, cracks are at the thinnest point where stress is concentrated. At this time, long strip cracks are formed at the thinnest part of the thermal insulation filler 42 layer. In this way, the cracks form pores, which play a role in crack guidance and ventilation, forming heat shrinkage gaps, and forming heat shrinkage buffer gaps for the partitioning block 4 made of foam concrete;

[0042] 2. The partitioning blocks 4 also play the role of separating cells during construction; the rockfill structure of the partitioning blocks 4 is divided into multiple small areas by the fracture wires 41, which separate the layers of the foam concrete insulation filler 42 to form smaller areas, thereby avoiding large-scale cracking of the entire insulation layer and the collapse of the entire board layer when the foam concrete is hydrated and solidified, thereby avoiding affecting the construction of the upper layer. The fracture wires 41 can also guide the generated cracks to form space gaps, thereby effectively improving the thermal insulation performance;

[0043] 3. The partition blocks 4 are stacked above the main beam 11 and the secondary beam 12, so that the load of the entire partition block 4 is directly borne by the beam body, the strength of the beam body is better, the partition blocks 4 are not stacked on the floor slab, and the floor slab is not needed to bear the load, which does not affect the strength of the floor slab and does not damage the floor slab strength of the existing building, making the building more stable.

[0044] The utility model is used to renovate the existing roof, and the following steps are required for the construction of insulation and structural reinforcement:

[0045] Step 1: dismantle the functional layer of the existing building roof, that is, dismantle the original insulation layer and waterproof layer of the existing roof, and classify and crush the construction waste according to different materials to prepare recycled aggregates such as concrete, mortar and bricks;

[0046] Step 2, grinding the original structural roof slab 1 after removal and cleaning to keep the original slab 1 flat, and repairing the leaking points in detail with waterproof mortar to form a repair layer 2;

[0047] Step 3, find the position of the main beam 11 and the secondary beam 12, and position and stack them on the top of the repaired floor slab 1, and perform stone stacking process to form slopes on both sides and a partition block 4 with a sharp corner on the top, and the vertical cross-section of the partition block 4 is a triangle; use recycled brick aggregates to evenly arrange the beam surface positions of the main beam 11 and the secondary beam 12 to form an orderly arranged working area, and use recycled concrete and mortar aggregates to strengthen the node positions where the beams and columns intersect;

[0048] Step 4, fill the insulation filler 42 at the position of the partition block 4 and the gap of the aggregate, fill the foam concrete to form an insulation layer, and pre-bury the crack wire 41 between the top of the partition block 4 and the top of the insulation filler 42. The crack wire 41 can be a sheet-like film, as long as it is vertically clamped in the insulation filler 42 to form a long vertical diaphragm. When the insulation filler 42 is hardened and cured to the specified design age, the crack wire 41 will cause the insulation filler 42 to produce regular cracks, forming a heat shrinkage buffer gap, and can achieve a better insulation effect;

[0049] Step 5, laying an upper waterproof pad 3 on the top of the solidified thermal insulation filler 42 layer, the upper waterproof pad 3 is a waterproof coiled material;

[0050] Step 6: pour 30-50 mm thick concrete, level the slope, and wait for it to solidify to form a protective plate 31.

[0051] Step 7, on the top of the surface layer of the protective plate 31 cast by concrete, press a water channel before solidification as needed, or cut the water channel 32 after the protective plate 31 solidifies, and the water channel 32 is recessed downward and set on the top of the protective plate 31.

[0052] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A thermal insulation structure for an existing roof of a building, characterized in that: include: A floor slab (1), a repair layer (2), an upper waterproof pad (3) and a partitioning pile (4); The floor slab (1) is a horizontal layer slab of a building body, and a plurality of crisscrossing main beams (11) and secondary beams (12) are arranged at the bottom of the floor slab (1); The repair layer (2) is a waterproof concrete structure, the repair layer (2) is laid and poured on the top of the floor slab (1), and the top of the repair layer (2) is horizontal; The partitioning blocks (4) are integral stone-mortar-shaped structures formed by stacking aggregates. The partitioning blocks (4) are laid directly above the main beam (11) and the secondary beam (12). A plurality of the partitioning blocks (4) are crisscrossed and connected to form a grid-shaped structure. The upper waterproof pad (3) is a waterproof pad, and the upper waterproof pad (3) is evenly paved on the top of the partition block (4). A thermal insulation filler (42) is poured between the upper waterproof pad (3) and the partition block (4). A crack wire (41) is vertically inserted inside the thermal insulation filler (42). The lower end of the crack wire (41) is connected to the top of the partition block (4), and the upper end of the crack wire (41) is exposed on the top of the thermal insulation filler (42). A protection plate (31) is also laid on the top of the upper waterproof pad (3), and a water guide groove (32) is arranged on the top of the protection plate (31).

2. The thermal insulation structure of an existing roof of a building according to claim 1, characterized in that: The repair layer (2) is waterproof mortar.

3. The thermal insulation structure of an existing roof of a building according to claim 1, characterized in that: The upper waterproof pad (3) is a waterproof coiled material pad; The protection plate (31) is a concrete floor, and the water guide groove (32) is a water guide groove that is recessed downward on the top surface of the protection plate (31).

4. The thermal insulation structure of an existing roof of a building according to claim 1, characterized in that: Concrete mortar is poured inside the partition block (4), and the partition block (4) is poured into an integral structure by the concrete mortar; the thermal insulation filler (42) is foam concrete; The thickness of the thermal insulation filler (42) is greater than the thickness of the partitioning block (4), the top of the partitioning block (4) does not contact the upper waterproof pad (3), and the height h of the crack wire (41) is not less than 10 cm.

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