Prefabricated heat preservation and sound insulation floor

Abstract

The utility model relates to a prefabricated heat preservation and sound insulation floor slab which comprises a prefabricated part and a cast-in-place part. The prefabricated part comprises a plurality of prefabricated geopolymer concrete blocks, each prefabricated geopolymer concrete block is provided with a bottom concave-convex plate and an upper arch-shaped body which are integrally poured, and the prefabricated geopolymer concrete blocks are spliced into a whole through the bottom concave-convex plates of the prefabricated geopolymer concrete blocks. Reinforcing steel bars are arranged in gaps between the adjacent upper arch-shaped bodies; the cast-in-place part is a cast-in-place concrete layer which is poured on the prefabricated part and fills gaps between the adjacent prefabricated geopolymer concrete blocks. Part of cast-in-place concrete is replaced by the prefabricated geopolymer concrete blocks, so that the production cycle of the floor slab can be shortened, and the production efficiency is improved; the geopolymer concrete blocks are solid waste materials, carbon emission in the production process of the geopolymer concrete blocks is only about 20% of that of traditional cement, the heat conductivity coefficient is small, the dead weight is light, and heat preservation, sound insulation and fire resistance are all superior to those of concrete.

Description

Technical Field

[0001] The utility model relates to a prefabricated thermal insulation and sound insulation floor slab, belonging to the technical field of prefabricated floor slabs. Background Art

[0002] Prefabricated floor slabs of prefabricated buildings include composite floor slabs and fully prefabricated floor slabs. Composite floor slabs, such as ordinary truss reinforced composite floor slabs, have good integrity, high rigidity, and flat upper and lower surfaces of the slab, which is convenient for surface decoration. However, since composite floor slabs are made of prefabricated concrete slabs and cast-in-place concrete layers, there are more wet operations on site, resulting in low efficiency and poor sound insulation effect; fully prefabricated floor slabs, such as double T slabs, have a simple structure and good structural mechanical properties. Although there is no wet operation on site, the entire component is cast in concrete, and there is also the problem of poor sound insulation effect. Summary of the invention

[0003] The purpose of the utility model is to provide a prefabricated thermal insulation and sound insulation floor, which is composed of prefabricated geopolymer concrete blocks, concrete casting layers, and truss steel bars. By using prefabricated geopolymer concrete blocks to replace part of the concrete, only one cast-in-place layer needs to be cast when the floor is cast in situ, thereby shortening the production cycle and improving production efficiency; the arched structure of the prefabricated geopolymer concrete blocks improves the sound insulation performance of the floor; the density of the prefabricated geopolymer concrete blocks is lower than that of cast-in-situ concrete, thereby reducing the weight of the floor and reducing energy consumption by reducing the amount of concrete used.

[0004] The utility model adopts the following technical solutions:

[0005] A prefabricated thermal insulation and sound insulation floor slab comprises a prefabricated part and a cast-in-place part; the prefabricated part comprises a plurality of prefabricated geopolymer concrete blocks 2, the prefabricated geopolymer concrete blocks 2 have an integrally cast bottom concave-convex plate 202 and an upper arched body 201, the plurality of prefabricated geopolymer concrete blocks 2 are spliced ​​into one body through their respective bottom concave-convex plates 202; steel bars are arranged in the gaps between adjacent upper arched bodies 201; the cast-in-place part is a cast-in-place concrete layer cast on the prefabricated part and filling the gaps between adjacent prefabricated geopolymer concrete blocks 2.

[0006] Preferably, a reinforcement groove 201 a is provided in the longitudinal direction on the upper arch body 201 , and curved and arched steel bars are arranged in the reinforcement groove 201 a .

[0007] Preferably, the steel bars include truss steel bars 3 and transverse steel bars 4.

[0008] Furthermore, the reinforcement groove 201 a is opened at the highest point in the center of the upper arch body 201 .

[0009] The beneficial effects of the utility model are:

[0010] 1) Compared with other thermal insulation and sound insulation floors that are cast on site in layers using multiple materials, the use of prefabricated geopolymer concrete blocks to replace part of the cast-in-place concrete can shorten the floor production cycle and improve production efficiency; at the same time, this approach does not require the addition or modification of production equipment and is suitable for most prefabricated floor production lines on the market.

[0011] 2) The upper end of the prefabricated geopolymer concrete block is an arched structure that can withstand greater pressure; there are grooves for laying steel bars in the longitudinal direction, which makes the reinforcement more flexible, increases the contact surface with the concrete pouring layer, and increases the overall strength; the bottom is concave and convex all around, so they can be spliced ​​together during laying to prevent displacement during the concrete pouring process.

[0012] 3) Geopolymer concrete blocks are solid waste materials, and the carbon emissions from their production process are only about 20% of traditional cement. They have a low thermal conductivity and light weight, and their thermal insulation, sound insulation and fire resistance are better than concrete. They can solve the problems of poor thermal insulation and sound insulation performance and heavy weight of traditional prefabricated floor slabs, and are low-carbon and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a perspective schematic diagram of the prefabricated thermal insulation and sound insulation wall panel of the utility model.

[0014] Figure 2 The utility model is a structural schematic diagram of a prefabricated thermal insulation and sound insulation wall panel.

[0015] Figure 3 It is a schematic diagram of the structure of a prefabricated geopolymer concrete block.

[0016] In the figure, 1 is a concrete pouring layer, 2 is a prefabricated geopolymer concrete block, 201 is an upper arch body, 201a is a reinforcement groove, 202 is a bottom concave-convex plate, 3 is a truss steel bar, and 4 is a transverse steel bar. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] A prefabricated thermal insulation and sound insulation floor slab, comprising a prefabricated part and a cast-in-place part; Figure 1 The perspective method is used to mainly show the prefabricated parts. Figure 2 A layer of the cast-in-place part is poured on top of the prefabricated part.

[0019] See also Figure 2 and Figure 3The prefabricated part includes a plurality of prefabricated geopolymer concrete blocks 2, each of which has an integrally cast bottom concave-convex plate 202 and an upper arch 201, and the plurality of prefabricated geopolymer concrete blocks 2 are spliced ​​into one body through their respective bottom concave-convex plates 202; steel bars are arranged in the gaps between adjacent upper arches 201; and the cast-in-place part is a cast-in-place concrete layer cast on the prefabricated part and filling the gaps between adjacent prefabricated geopolymer concrete blocks 2.

[0020] In this embodiment, continue to see Figure 2 and Figure 3 A reinforcement groove 201a is provided in the longitudinal direction on the upper arch body 201, and curved and arched steel bars are arranged in the reinforcement groove 201a.

[0021] In this embodiment, see Figure 2 The steel bars include truss steel bars 3 and transverse steel bars 4.

[0022] In this embodiment, see Figure 1 The reinforcement groove 201a is opened at the highest point in the center of the upper arch body 201.

[0023] The bottom concave-convex plate 202 of the bottom end of the prefabricated geopolymer concrete block 2 is rectangular, and the two sides of the bottom are concave-convex, which can be assembled together when laid to play a fixing role; the upper arch body 201 of the upper end is arched, and a reinforcement groove 201 for laying steel bars is longitudinally provided, which makes the reinforcement more flexible, has a larger contact surface with the concrete pouring layer, and has a higher overall strength. After the prefabricated geopolymer concrete block is laid, there are gaps in the horizontal and vertical directions for laying steel bars and placing embedded parts.

[0024] Compared with other insulation and sound insulation floors that are cast in layers using multiple materials, using prefabricated geopolymer concrete blocks to replace part of the concrete can shorten the floor production cycle and improve production efficiency. At the same time, this approach does not require the addition or modification of production equipment and is suitable for most prefabricated floor production lines on the market. The upper end of the prefabricated geopolymer concrete block is an arched structure that can withstand greater pressure; there are grooves for laying steel bars in the longitudinal direction, which makes the reinforcement more flexible, has a larger contact surface with the concrete casting layer, and has higher overall strength; the bottom is concave and convex around, and can be spliced ​​together during laying to prevent displacement during the concrete pouring process. Geopolymer concrete blocks are solid waste materials, and the carbon emissions of their production process are only about 20% of traditional cement. They have a low thermal conductivity and light weight. Their insulation, sound insulation and fire resistance are better than concrete. They can solve the problems of poor insulation and sound insulation performance and heavy weight of traditional prefabricated floors, and are low-carbon and environmentally friendly.

[0025] The above are preferred embodiments of the present invention. Ordinary technicians in this field can also make their own changes or improvements on this basis. Without departing from the overall concept of the present invention, these changes or improvements should fall within the scope of protection required by the present invention.

Claims

1. A prefabricated thermal insulation and sound insulation floor, characterized in that: Including prefabricated parts and cast-in-place parts; The prefabricated part comprises a plurality of prefabricated geopolymer concrete blocks (2), wherein the prefabricated geopolymer concrete blocks (2) have an integrally cast bottom concave-convex plate (202) and an upper arched body (201), and the plurality of prefabricated geopolymer concrete blocks (2) are spliced ​​into one body through their respective bottom concave-convex plates (202); steel bars are arranged in the gaps between adjacent upper arched bodies (201); The cast-in-place part is a cast-in-place concrete layer cast on the prefabricated part and filling the gaps between adjacent prefabricated geopolymer concrete blocks (2).

2. The prefabricated thermal insulation and sound insulation floor slab according to claim 1, characterized in that: A reinforcement groove (201a) is provided in the longitudinal direction on the upper arched body (201), and a curved and arched steel bar is arranged in the reinforcement groove (201a).

3. The prefabricated thermal insulation and sound insulation floor slab according to claim 1, characterized in that: The steel bars include truss steel bars (3) and transverse steel bars (4).

4. The prefabricated thermal insulation and sound insulation floor slab according to claim 2, characterized in that: The reinforcement groove (201a) is opened at the highest point in the center of the upper arched body (201).

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