Portable outer formwork, wall body structure and production method of outer formwork

Abstract

The invention provides a portable outer formwork, a wall body structure and a production method of the outer formwork. The portable outer formwork comprises a heat preservation plate main body, gridding cloth is arranged on the two sides of the heat preservation plate main body, the gridding cloth is directly compounded on the heat preservation plate main body in a pressure applying mode, the gridding cloth and the heat preservation plate main body are integrally formed, the heat preservation plate main body is an inorganic material coated organic particle plate, the two sides of the inorganic material coated organic particle plate are directly compounded with gridding cloth for compression molding, so that the compactness is greatly improved, the air permeability and the water permeability are reduced, the heat preservation effect and the waterproof effect are greatly improved, the mechanical strength is greatly improved, and the effects that the heat preservation plate main body is thinner and lighter, and the safety performance is better are achieved. In addition, the invention further provides a wall body structure which comprises the outer formwork and further comprises a base layer wall body, the outer formwork is laid on the outer side of the base layer wall body, and the construction and construction cost is saved to a great extent.

Description

technical field [0001] The invention relates to the technical field of building heat preservation, in particular to a portable external formwork and a production method thereof, and also to a wall structure. Background technique [0002] The implementation of building energy-saving policies and building fire protection regulations has promoted the rapid development of wall insulation materials. Polyurethane rigid foam board, phenolic plastic foam board, polystyrene foam board and other organic insulation materials have been widely used in building insulation engineering because of their excellent thermal insulation performance, but organic insulation materials are flammable. Materials, which have the possibility of causing fire, often cannot meet the requirements of the current fire protection design codes. In order to make full use of the thermal insulation effect of organic thermal insulation materials and meet the GB50016-2014 fire protection regulations, the current cas...

AI Technical Summary

Problems solved by technology

[0003] However, when polystyrene particle glue or vitrified microbead glue is used as the transition layer, the formed structure has strong air permeability and water permeability, and the thermal insulation effect is poor, and the thermal conductivity is generally 0.07-0.10W / (m·K) Between them, the overall thickness and unit area weight of the outer formwork are greatly increased; if it is used as an insulation layer, the overall thickness of the outer formwork will be greatly increased, and the cement mortar components contained in the polystyrene particle mortar will also greatly increase the unit area weight of the outer formwork. Therefore, it is not suitable to be used alone as an insulation layer.

With the continuous improvement of thermal insulation and energy saving standards, the overall thickness of the outer formwork will become thicker and heavier, resulting in more and more restricted construction and serious safety hazards

[0004] Although there are also composite insulation boards formed by wrapping organic particle boards with inorganic materials and compounding organic insulation boards, they use organic particle boards wrapped in inorganic materials as the bottom plate during production, and foam insulation materials are directly injected into fixed molds on top of them. Forming (the pressurization in this process is the limit of the mold volume, the foaming material in the box mold is expanded and fixed in the box mold volume, and the volume of continuous expansion is limited, and a certain pressure is generated inside, that is, during the foaming expansion process Under pressure, the bottom plate wrapped with organic particles by inorganic materials has been solidified and formed before this process, and the pressure at this time cannot increase the density of the bottom plate), the bottom plate wrapped with organic particles by inorganic materials has low density and poor thermal insulation performance, and there is no insulation between the two layers of insulation boards. Mesh reinforcement layer has poor lateral pressure resistance. If it is used as a cast-in-place thermal insulation external formwork, the thermal insulation board will be broken and disintegrated under the lateral pressure generated by the impact and vibration of the concrete from top to bottom when pouring concrete

[0005] The production process of the traditional outer formwork is complicated, and it is necessary to apply 2 layers of interface agent on the front and back of the extruded board, scrape 1-2 layers of polystyrene particle glue, and scrape 2-3 layers of composite mesh cloth for the protective layer. The front and back sides cannot be processed simultaneously. One side needs to be cured before processing the other side. The production equipment is complicated, the cycle is long, the efficiency is low, and the cost remains high.

Images