High-strength concrete block used as outer wall of grouted composite wall as well as grouted composite wall and construction method thereof

Abstract

The invention discloses a high-strength concrete block used for an outer wall of a grouted composite wall. The high-strength concrete block is an integrated hollow block made of concrete material. The concrete block comprises a front plate and a rear plate, wherein the front plate and the rear plate are connected integrally with each other by virtue of at least two transverse rib plates which are vertically arranged in parallel and at least one core grouting cavity is formed; a rib hole is formed in the upper part of each transverse rib plate, so that cavities of adjacent blocks are communicated with each other when blocks are stacked for wall building, so that the core material from a grouting opening or a pressure injection hole can flow in the outer wall of the wall and fill the cavity in the outer wall of the wall. Tongued and grooved structures used for accurately butting adjacent blocks are arranged on the end faces of the edges of the front plate and the rear plate. The invention also discloses the grouted composite wall built by the concrete block and formed through grouting and a construction method thereof. The wall has high durability, heat insulation and preservation, water resistance, permeability resistance, sound insulation, fire resistance and energy-saving effect.

Description

technical field [0001] The invention relates to a composite wall and a construction method thereof, in particular to a high-strength concrete block used as an outer wall of a core-filled composite wall, and a core-filled composite wall formed by building the block with core and its construction method. The method of construction of the wall. Background technique [0002] In recent years, my country has vigorously promoted the development of green buildings and building energy-saving, in order to realize the maximum saving of resources in the whole life cycle of buildings, including energy saving, land saving, water saving, material saving, environmental protection and pollution reduction, and provide people with health benefits. , Applicable and efficient use of space and a building that coexists harmoniously with nature. In order to strengthen the implementation of green buildings and building energy-saving management, reduce building energy consumption and improve building...

AI Technical Summary

Problems solved by technology

However, the complex operation procedures brought by the compounding of this technology not only prolong the construction period, but also make it difficult to guarantee the construction quality, and the polystyrene foam board is flammable and will produce toxic gas after burning, which brings great hidden dangers to safe construction In recent years, polystyrene foam boards have been ignited more than once due to careless construction on construction sites in my country, resulting in extremely serious major accidents in production safety

[0004] The thermal insulation composite wall made of blocks / formwork is a new type of energy-saving wall technology that has emerged in recent years. Chinese patent 201320825941.X discloses "A Building Composite Wall Block and Its Wall" It is a composite wall technology for heat insulation, sound insulation and waterproof. Its wall blocks include a composite layer made of foam insulation materials and a core layer inside the composite layer, as well as a fireproof material on the outside of the composite layer. The protective layer and the solar panel layer, wherein the core layer adopts a honeycomb hollow cavity and a core column is added, and a splicing and matching structure is arranged on the two outer surfaces of the block in one direction, which is easy to construct; the disadvantage is that the block The strength and hardness of the external material are weak, and external protective components, such as protective nets, are required. The fire performance is limited, and the external protection is not internal protection. The durability of performance and the service life of the wall

Its characteristic is that polyphenylene particles, the main material of the wall formwork, are bonded to each other through the cement slurry shell, and gaps are formed between the particles, so as to play the role of heat preservation, ventilation and waterproof; and polyphenylene particles can use waste materials to realize waste utilization. Its disadvantage is that the wall formwork used for heat insulation is a split structure, and the bonded sealant is easy to age compared with the building life and affects the overall strength of the wall; and the lightweight concrete contains a large amount of Therefore, polystyrene materials with a high fire resistance level must be used. Although its fire resistance performance is higher than that of polystyrene foam boards, the fire resistance level is still not up to Class A. In the event of a fire, it cannot be avoided under high temperature. The bursting of the formwork ignites the polyphenylene particles, resulting in the release of toxic gases, so there is still a safety hazard; in addition, the hardness and strength of the wall formwork are lower than those of non-lightweight concrete, which is different from that of the previous block composite wall. Similar to the body, it also belongs to the structure of meat-clad iron, so the durability of the heat insulation performance of the wall and the service life of the wall will be affected

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