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Prefabricated superimposed sheet, seam structure of prefabricated superimposed sheet and seam squeezing concrete mortar

A technology of concrete mortar and laminated slabs, which is applied in the direction of floor slabs, building components, building structures, etc., can solve problems such as cracks at joints, achieve the effects of improving strength and stability, increasing contact area, and preventing cracks

Active Publication Date: 2017-09-12
CHINA MCC5 GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide prefabricated laminated slabs, prefabricated laminated slab joint structures, and joint-extruded concrete mortar to solve the problem that gaps are likely to occur at the joints of two adjacent prefabricated laminated slabs in the prior art, and to improve the quality of the joints. Strength and stability, the purpose of preventing cracks

Method used

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  • Prefabricated superimposed sheet, seam structure of prefabricated superimposed sheet and seam squeezing concrete mortar
  • Prefabricated superimposed sheet, seam structure of prefabricated superimposed sheet and seam squeezing concrete mortar
  • Prefabricated superimposed sheet, seam structure of prefabricated superimposed sheet and seam squeezing concrete mortar

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Embodiment 1

[0032] Such as figure 1 The shown prefabricated laminated board includes a board body 1, and the side surface of the board body 1 is provided with a slope 2 inclined from top to bottom toward the inner direction of the board body 1, and the lower edge of the slope 2 is higher than the bottom surface of the board body 1; A notch 3 located on the bottom surface of the plate body 1 is provided below each inclined surface 2 , and the lower edge of the inclined surface 2 is located in the plane where the top surface of the notch 3 is located. The included angle between the slope 2 and the vertical direction is 10°. The width of the notch 3 is 55 mm. The inside of the board body 1 is provided with a number of distribution ribs 7 which criss-cross.

Embodiment 2

[0034] Such as figure 2 and image 3 A prefabricated laminated panel seam structure is shown, including two adjacent panels 1, the slopes of the two panels 1 face each other, and the opposite two slopes are assembled into a triangular cavity 4, and the bottom of the triangular cavity 4 is a square Cavity 5, the square cavity 5 is formed by joining two opposite gaps on the two boards 1; the triangular cavity 4 and the square cavity 5 are filled with concrete mortar. A mesh extension layer 6 is arranged inside the square cavity 5 , and the mesh extension layer 6 is parallel to the surface of the plate body 1 . The mesh extension layer 6 is a glass fiber mesh or a gauze mesh. The two ends of the mesh extension layer 6 are respectively fixed on the side walls of the two gaps. The inside of the board body 1 is provided with a number of distribution ribs 7 which criss-cross. The invention greatly increases the contact area between the concrete mortar and the laminated plates on...

Embodiment 3

[0036] A concrete mortar for extrusion, comprising the following components by weight: 200 parts of ordinary portland cement, 5 parts of redispersible latex powder, 200 parts of silica sand, 200 parts of superfine fly ash, 8 parts of polyacrylamide, 20 parts of 2-acrylamide-2-methylpropanesulfonic acid, 8 parts of copolymerized acrylic acid, 5 parts of acrylamide, and 10 parts of hydroxypropyl methylcellulose; wherein the particle size of ultrafine fly ash is 120 mesh.

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Abstract

The invention discloses a prefabricated superimposed sheet, a seam structure of the prefabricated superimposed sheet and squeezing concrete mortar applicable to the seam structure. The contact areas among concrete mortar and superimposed sheets on two sides are greatly increased; the connection ranges among cement and the superimposed sheets on the two sides are enabled to be wider; therefore, the connection is firmer and more reliable; the probability that gaps, which are integrally communicated, occur between the interfaces of the cement and the superimposed sheets is greatly decreased. The cement in a square cavity forms a limiting body after being solidified; the whole filled cement is inhibited from carrying out any movement in the longitudinal direction; therefore, even though being influenced by the strong vibration of external force, such as an earthquake and the like, the cement filled between two adjacent sheet bodies cannot be also generated up-and-down dislocation; longitudinal gaps are further prevented from being generated between the interfaces of the cement and the superimposed sheets. By using the prefabricated superimposed sheet, the problem that the gaps are easily generated at a joint of two adjacent superimposed sheets in the prior art is solved; the purposes of improving the strength and the stability at the joint and preventing the gaps from occurring are realized.

Description

technical field [0001] The invention relates to the field of prefabricated laminated slabs, in particular to a prefabricated laminated slab, a prefabricated laminated slab joint structure and joint-extruded concrete mortar. Background technique [0002] The laminated slab is an assembled integral slab formed by laminating prefabricated slabs and cast-in-place reinforced concrete layers. Among them, the prefabricated laminated slab is not only one of the components of the floor structure, but also a permanent formwork for the cast-in-place reinforced concrete laminated layer, and horizontal equipment pipelines can be laid in the cast-in-place laminated layer. The laminated floor slab has good integrity and high rigidity, which can save formwork, and the upper and lower surfaces of the slab are flat, which is convenient for decoration of the facing layer. It is suitable for high-rise buildings and large-bay buildings that require high overall rigidity. However, since the bott...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C2/30E04B5/38E04B1/682C04B28/04
CPCC04B28/04E04B1/6801E04B5/38E04C2/30C04B24/26C04B14/06C04B18/08C04B24/2652C04B24/383
Inventor 谭启厚李果夏尚志高长玲
Owner CHINA MCC5 GROUP CORP
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