An NL outer formwork cast-in-place concrete composite heat preservation system

Abstract

The invention discloses an NL outer formwork cast-in-place concrete composite heat preservation system, and relates to the technical field of building heat preservation and structure integrated engineering. The system comprises a first bonding layer, an insulation board, a second bonding layer, a transition layer, a third bonding layer, a reinforcing rib, a connecting piece groove, an upper splicing seam butt joint groove, a lower splicing seam butt joint groove and an insulation sealing strip; one side of the insulation board is connected with the first bonding layer; the other side of the insulation board is connected with the transition layer through the second bonding layer; the third bonding layer is bonded to the outer side face of the transition layer; the reinforcing rib is arranged on the transition layer; the connecting piece groove is further formed in the surface of the plate; the upper splicing seam butt joint groove and the lower splicing seam butt joint groove are formedin the two ends of the insulation board respectively, and the insulation sealing strip is arranged behind the upper splicing seam butt joint groove. The system is good in sealing performance, not prone to slurry leakage, good in integrity, high in breaking strength, economical, practical, safe, reliable and easy to apply and popularize, the strength of the connecting piece is improved, and the reliability of connection between a formwork and an outer wall is improved.

Description

technical field [0001] The invention relates to the technical field of building thermal insulation and structural integration engineering, in particular to a novel NL external formwork cast-in-place concrete composite thermal insulation system. Background technique [0002] At present, there are the following problems in the field of external formwork building insulation and structural integration materials on the market: [0003] (1) Because there is no groove design on the top of the connector, the thickness of the leveling layer in the exterior decoration project is increased by 2-5mm, and the thickness of the leveling layer of the external wall is increased, which not only causes material waste but also has the potential for falling off due to the large weight; [0004] (2) Due to the heavy weight of the outer inorganic material protective layer, the material used to connect with the wall is plastic or nylon parts, and the low strength may easily cause safety hazards; ...

AI Technical Summary

Problems solved by technology

[0003] (1) Because there is no groove design on the top of the connector, the thickness of the leveling layer in the exterior decoration project is increased by 2-5mm, and the thickness of the leveling layer of the external wall is increased, which not only causes material waste but also has the potential for falling off due to the large weight;

[0004] (2) Due to the heavy weight of the outer inorganic material protective layer, the material used to connect with the wall is plastic or nylon parts, and the low strength may easily cause safety hazards;

[0005] (3) It is easy to leak grout during the concrete pouring process, and the flatness of the splicing of the board and the board is poor, and the integrity is not good;

[0006] (4) The outer formwork insulation material has no reinforcing ribs, and the integrity and flexural strength of the product are not high;

[0007] (5) The gap between the boards in the traditional method is large, resulting in grout leakage on the wall. In the past, there were many disadvantages in the concave-convex groove. Through previous projects, it was found that the product was easily damaged, and the production resistance was large. Many problems were prone to occur during construction.

[0008] In summary, in order to solve the problems of grout leakage, large decorative layer leveling thickness, long production and maintenance period and heavy weight, and poor overall strength of the board in ordinary composite thermal insulation formwork, a new type of NL external formwork cast-in-place concrete composite thermal insulation was designed. system is especially necessary

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