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CN-122013921-A - Composite sound-insulation heat-preservation precast concrete floor slab and production process thereof

CN122013921ACN 122013921 ACN122013921 ACN 122013921ACN-122013921-A

Abstract

The invention discloses a composite sound-insulation heat-preservation precast concrete floor slab and a production process thereof, and aims to solve the problems that the existing precast concrete floor slab is single in function, connection reliability among functional layers is insufficient, and heat-preservation materials are easy to erode in alkaline environments. The invention integrates a heat preservation and insulation layer, a dampproof and vibration insulation layer and an alkali-resistant layer on a precast concrete bottom plate, so that a single floor slab member has the performance of impact sound insulation, air sound insulation, heat preservation and moisture resistance, and then the functional layer is firstly manufactured, a plurality of heat preservation nails are penetrated and arranged, then the functional layer is braided with stressed steel meshes and poured concrete to manufacture the precast concrete floor slab, so that the heat preservation nails are tightly attached to the concrete, the connection between the functional layer and the precast concrete floor slab is firmer, the invention creatively designs a connecting piece consisting of a connecting rod, a tray, a transverse through groove and a longitudinal through groove, and the functional layer is connected with the stressed steel meshes through the connecting piece, thereby improving the connection strength of the functional layer and the precast concrete floor slab.

Inventors

  • LI JUN
  • LU CHUNLIANG
  • XIE FENG
  • GUO FEI

Assignees

  • 锦萧新材料科技(浙江)股份有限公司

Dates

Publication Date
20260512
Application Date
20260211
Priority Date
20260106

Claims (10)

  1. 1. The composite sound-insulation heat-preservation precast concrete floor slab comprises a precast concrete bottom plate (1), wherein stress reinforcing steel meshes (2) are arranged in the precast concrete bottom plate (1), and the composite sound-insulation heat-preservation precast concrete floor slab is characterized in that a functional layer is arranged on the precast concrete bottom plate (1), the functional layer comprises a heat-preservation heat-insulation layer (3), a dampproof vibration-insulation layer (4) and an alkali-resistant layer (5), and a plurality of connecting pieces (6) for fixing the functional layer on the precast concrete bottom plate (1) are arranged on the functional layer.
  2. 2. The precast concrete floor slab with composite sound insulation and heat preservation according to claim 1, wherein the heat preservation and heat insulation layer (3) is one or a combination of more of an enhanced heat preservation plate, a rigid foam polyurethane plate, a vacuum heat insulation plate, an aerogel heat preservation plate, a graphite polyphenyl plate and an inorganic composite heat preservation plate.
  3. 3. The composite sound-insulation and heat-preservation precast concrete floor slab according to claim 1, wherein the moistureproof and shock-insulation layer (4) is one or a combination of more of moistureproof and shock-insulation foam paper, rubber sound-insulation pad, glass wool board and rock wool board.
  4. 4. The composite sound-insulating and heat-preserving precast concrete floor slab according to claim 1, wherein the alkali-resistant layer (5) comprises one or more of alkali-resistant gridding cloth, a silane coating, a siloxane coating and an epoxy paint coating.
  5. 5. The composite sound-insulation heat-preservation precast concrete floor slab according to claim 1, wherein the connecting piece (6) is a heat-preservation nail.
  6. 6. The composite sound-insulation heat-preservation precast concrete floor slab disclosed by claim 1 is characterized in that the connecting piece (6) comprises a connecting rod (7), one end of the connecting rod (7) is provided with a tray (8), the other end of the connecting rod (7) is provided with a transverse through groove (9) and a longitudinal through groove (10), and the transverse through groove (9) and the longitudinal through groove (10) are distributed in an up-down staggered mode.
  7. 7. The composite sound-insulation heat-preservation precast concrete floor slab of claim 6, wherein the other end of the connecting rod (7) is provided with a cross through groove (11), and the connecting rod (7) is also provided with a limiting piece (12) and a plurality of limiting parts (15) for limiting the limiting piece (12).
  8. 8. A production process of a precast concrete floor slab is characterized in that a, an alkali-resistant layer (5) is compounded on a heat-insulating layer (3); b. cutting the dampproof shock insulation layer (4) and the compounded heat preservation and insulation layer (3) into proper sizes; c. the dampproof and shock insulation layer (4) is adhered to the compounded heat preservation and insulation layer (3) to prepare a functional layer; d. The heat preservation nails sequentially penetrate through the alkali-resistant layer (5), the heat preservation and insulation layer (3) and the dampproof and vibration insulation layer (4) and are exposed for a certain length for being fixed in the precast concrete base plate (1); e. And placing the functional layer into a floor slab mould according to the design direction, braiding a stressed reinforcing steel mesh (2) above the functional layer, pouring concrete to prepare a precast concrete base plate (1), and carrying out standard maintenance on the precast concrete base plate (1) to finally form the precast concrete floor slab.
  9. 9. The production process of the composite floor slab according to claim 8, wherein when the connecting piece (6) is the connecting piece (6) in claim 6, in the step d, the connecting rod (7) sequentially passes through the alkali-resistant layer (5), the heat-insulating layer (3) and the dampproof vibration-insulating layer (4) and is exposed for a certain length, the tray (8) of the connecting rod (7) is tightly pressed against the surface of the heat-insulating layer (3) to ensure the tight adhesion between the layers, and in the step e, when the stressed steel bar net (2) is woven on the functional layer, transverse steel bars and longitudinal steel bars of the stressed steel bar net (2) pass through the transverse through grooves (9) and the longitudinal through grooves (10) respectively.
  10. 10. The process for producing a composite floor slab according to claim 9, wherein when the connecting piece (6) is the connecting piece (6) according to claim 7, in the step e, when the stressed steel mesh (2) is woven on the functional layer, the transverse steel bars and the longitudinal steel bars of the stressed steel mesh (2) are inserted into the cross through grooves (11), the limiting piece (12) is clamped on the supporting rod through the limiting part (15), and the limiting piece (12) can limit the transverse steel bars and the longitudinal steel bars of the stressed steel mesh (2) in the cross grooves.

Description

Composite sound-insulation heat-preservation precast concrete floor slab and production process thereof Technical Field The invention relates to the field of precast concrete floors, in particular to a composite sound-insulation heat-preservation precast concrete floor and a production process thereof. Background With the popularization of fabricated buildings, precast concrete floors are increasingly used. However, the traditional floor slab has the defects in the aspects of physical properties such as sound insulation, heat preservation and the like. In the prior art, some improvements exist, such as a sound insulation layer is arranged in a floor slab or a heat insulation plate is arranged at the lower part of the floor slab, but the problems of single function, difficulty in meeting multiple requirements of sound insulation, heat insulation, moisture resistance and the like at the same time, insufficient connection reliability among the functional layers, layering and falling risks particularly exist under the working condition that prefabricated components are hoisted and transported, and the common heat insulation material is directly contacted with concrete, is easy to erode in alkaline environment and influences long-term durability. Based on the above, the invention aims to provide a composite sound-insulation heat-preservation precast concrete floor slab and a production process thereof, so as to solve the problems. Disclosure of Invention Aiming at the defects of the prior art, the invention aims to provide a composite sound-insulation heat-preservation precast concrete floor slab and a production process thereof. The technical aim of the invention is achieved through the following technical scheme that the composite sound-insulation heat-preservation precast concrete floor slab comprises a precast concrete bottom plate, stress reinforcing steel meshes are arranged in the precast concrete bottom plate, a functional layer is arranged on the precast concrete bottom plate, the functional layer comprises a heat-preservation heat-insulation layer, a dampproof vibration-insulation layer and an alkali-resistant layer, and a plurality of connecting pieces for fixing the functional layer on the precast concrete bottom plate are arranged on the functional layer. Through adopting above-mentioned technical scheme, heat preservation insulating layer can promote the thermal insulation performance of floor, and dampproofing shock insulation layer can promote the dampproofing shock insulation effect of floor, and the shock insulation effect also can promote the sound insulation performance of floor, and alkali-resistant layer can reduce the floor and receive alkaline environment erosion, extension floor life-span, and then makes single floor member possess excellent impact sound insulation, air sound insulation, heat preservation and dampproofing simultaneously. The invention further provides that the heat insulation layer is one or a combination of a plurality of reinforced heat insulation boards, hard foam polyurethane boards, vacuum heat insulation boards, aerogel heat insulation boards, graphite polyphenyl boards and inorganic composite heat insulation boards. The invention further provides that the dampproof and shock-proof layer is one or a combination of more than one of dampproof and shock-proof foam paper, rubber sound insulation pad, glass wool board and rock wool board. The invention further provides that the alkali-resistant layer comprises one or a combination of more of alkali-resistant gridding cloth, a silane coating, a siloxane coating and an epoxy paint coating. The invention further provides that the connecting piece is a heat preservation nail. The connecting piece comprises a connecting rod, one end of the connecting rod is provided with a tray, the other end of the connecting rod is provided with a transverse through groove and a longitudinal through groove, and the transverse through groove and the longitudinal through groove are distributed in a vertically staggered mode. The invention is further characterized in that the other end of the connecting rod is provided with a cross through groove, and the connecting rod is also provided with a limiting piece and a plurality of limiting parts for limiting the limiting piece. A production process of a precast concrete floor slab comprises the following steps: a. and compounding the alkali-resistant layer on the heat-insulating layer. B. Cutting the dampproof shock insulation layer and the compounded heat preservation and insulation layer into proper sizes. C. and (3) adhering the dampproof and shock-proof layer on the compounded heat-insulating layer to prepare the functional layer. D. The heat preservation nails sequentially penetrate through the alkali-resistant layer, the heat preservation heat insulation layer and the dampproof vibration insulation layer according to a preset arrangement mode, are exposed out for a certain length and are us