CN102071797A - Fiber-reinforced plaster-free dismantle-free integrated heat-preservation template and exterior wall heat-preservation construction process - Google Patents

Abstract

The invention relates to a fiber-reinforced plaster-free and demolition-free integrated thermal insulation formwork and an exterior wall thermal insulation construction process. The thermal insulation formwork is compounded with a layer of EPS aggregate layer on the surface of a fiber concrete slab, and the process is in the pre-built wall. On both sides of the position, the fiber concrete formwork and the fiber concrete composite insulation board are vertically fixed respectively, and the fiber concrete formwork and the fiber concrete composite insulation board are fixed together by pull bolts. A reinforcing bar is arranged between the fiber concrete formwork and the fiber concrete composite insulation board, and concrete is poured to form a reinforced concrete load-bearing wall. The integrated permanent dismantling-free thermal insulation formwork of the present invention replaces the external wall formwork, the external thermal insulation layer and the plastering layer to meet the requirements of the external wall thermal insulation and the smoothness of the plastering layer. The process of the invention does not need to remove the formwork, has good thermal insulation and waterproof performance, reduces the thickness of the wall, saves a lot of materials and labor, can shorten the construction period, and meets the requirements of energy saving, the adhesive force of the permanent formwork and the base layer, and the smoothness of the surface layer. It is suitable for high-rise and small high-rise buildings, which can improve the living environment, improve the quality of building functions, and improve the efficiency of building development, and has broad application prospects.

Description

Fiber-reinforced plaster-free and demolition-free integrated thermal insulation formwork and external wall thermal insulation construction technology

technical field

The present invention relates to a construction method for building exterior wall insulation, in particular to an exterior wall insulation construction process.

Background technique

In recent years, with the advancement of building external insulation technology and the continuous innovation of construction technology, demolition-free wall membranes have been developed and applied at home and abroad. A kind of concrete formwork - polystyrene free formwork has been developed abroad, which is used for pouring walls and has been used in residential buildings and commercial buildings. After the concrete is poured into the formwork, the formwork is not disassembled, but used as the thermal insulation structure of the building. If the internal and external decoration of the wall is taken into consideration, then the main load-bearing structure, thermal insulation structure and internal and external decoration can be completed at one time; the construction process is simplified and the construction speed is very fast. However, due to the small strength and low rigidity of the formwork, this technology can only be used in the wall construction of simple houses or low-rise houses.

Contents of the invention

In order to overcome the defects of the existing external wall thermal insulation technology, the invention provides an external wall thermal insulation construction process.

Technical solution: a fiber-reinforced plaster-free and demolition-free integrated thermal insulation formwork, which is compounded with a layer of EPS aggregate layer on one side of the fiber concrete slab.

The thickness of the fiber concrete slab is 20mm, and the thickness of the EPS aggregate layer is 50mm.

An exterior wall insulation construction process, comprising the following steps:

(1) Prefabricated fiber concrete slabs;

(2) Prefabricate the fiber-concrete integrated thermal insulation formwork: a. Firstly make a fiber concrete layer on the bottom of the mold, b. Make a layer of EPS aggregate layer on the upper side of the mold fiber concrete layer;

(3) On both sides of the pre-built wall, take the thickness of the wall as the distance, and fix the fiber concrete formwork and the fiber concrete composite insulation board vertically, and the fiber concrete formwork and the fiber concrete composite insulation board pass through The pull bolts are fixed together;

(4) Set reinforcement between the fiber concrete formwork and fiber concrete composite insulation board and pour concrete to form a reinforced concrete load-bearing wall.

  The fiber concrete slab and the integrated thermal insulation formwork are reinforced by using carbon fiber reinforced polymer bars to pull bolts.

The EPS aggregate layer is composed of industrial waste EPS particles and cementing materials. the

Beneficial effects of the present invention:

1. The present invention provides an integrated permanent non-dismantling heat preservation formwork with the functions of formwork, heat preservation and plastering, which can replace the exterior wall formwork, exterior heat preservation layer and plastering layer to meet the requirements of exterior wall heat preservation and plastering layer flatness .

2. Install the process of the present invention for construction, the system does not need to remove the formwork, the thermal insulation and waterproof performance is good, and the thickness of the wall is reduced.

3. Save a lot of materials and labor, and shorten the construction period.

4. It can achieve the same service life of the insulation layer and the structure, breaking the 25-year limit of the insulation design life specified in the current code.

5. Meet the requirements of energy saving, the adhesion between the permanent formwork and the base layer and the flatness of the surface layer.

6. The present invention is used as an external wall thermal insulation system for a shear wall structure. This structural system is suitable for high-rise and small high-rise buildings, can improve the living environment, improve the quality of building functions, and improve the efficiency of building development, and has broad application prospects.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the thermal insulation exterior wall of the present invention.

The number 1 in the figure is the reinforced concrete load-bearing wall, the number 2 is the fiber concrete slab, the number 3 is the EPS aggregate layer (insulation layer), and the number 4 is the carbon fiber reinforced polymer tendon tension bolt.

Detailed ways

Embodiment 1: Referring to FIG. 1 , a fiber-reinforced plaster-free and non-demolition-free integrated thermal insulation formwork is composed of a layer of EPS aggregate layer 3 on one side surface of a fiber concrete slab 2 .

The thickness of the fiber concrete slab is 18-22mm, and the thickness of the EPS aggregate layer is 47-52mm.

Among them, the thickness of the fiber concrete slab is 20mm, and the thickness of the EPS aggregate layer is 50mm.

Embodiment 2: Referring to Fig. 1, a construction process for exterior wall insulation comprises the following steps:

(1) Prefabricated fiber concrete slabs;

(2) Prefabricate the fiber-concrete integrated thermal insulation formwork: a. Firstly make a fiber concrete layer on the bottom of the mold, b. Make a layer of EPS aggregate layer on the upper side of the mold fiber concrete layer;

(3) On both sides of the pre-built wall, take the thickness of the wall as the distance, and fix the fiber concrete formwork and the fiber concrete composite insulation board vertically, and the fiber concrete formwork and the fiber concrete composite insulation board pass through Carbon fiber-reinforced polymer ribs hold the bolts together.

(4) Set reinforcement between the fiber concrete formwork and fiber concrete composite insulation board and pour concrete to form a reinforced concrete load-bearing wall.

In this embodiment, the integrated thermal insulation formwork is made of industrial waste EPS particles, cement material (cement) and admixture as raw materials, and the bearing layer is a 20mm fiber reinforced concrete reinforced board. The thermal insulation formwork has two main functions: it is used as a side form of the wall during concrete pouring; it is permanently used as a wall insulation material and a plastering layer after pouring.

The thickness of the insulation layer of the integrated thermal insulation formwork is designed according to the linear building energy-saving standard. The integrated insulation board is manufactured in the factory and installed on site. But different from the large formwork, it is a permanent formwork, which can also be used as an external wall insulation layer and plastering layer.

Claims (6)

1. A fiber-reinforced plaster-free and demolition-free integrated thermal insulation formwork is characterized in that a layer of EPS aggregate layer is compounded on the surface of one side of the fiber concrete slab. 2. The thermal insulation formwork according to claim 1, characterized in that the thickness of the fiber concrete slab is 18-22mm, and the thickness of the EPS aggregate layer is 47-52mm. 3. The thermal insulation formwork according to claim 2, characterized in that the thickness of the fiber concrete slab is 20mm, and the thickness of the EPS aggregate layer is 50mm. 4. A construction technique for exterior wall insulation, characterized in that it comprises the following steps: (1) Prefabricated fiber concrete slabs; (2) Prefabricate the fiber-concrete integrated thermal insulation formwork: a. First make a fiber concrete layer at the bottom of the mold, b. Make a layer of EPS aggregate layer on the upper side of the mold fiber concrete layer; (3) On both sides of the pre-built wall, take the thickness of the wall as the distance, and fix the fiber concrete formwork and the fiber concrete composite insulation board vertically, and the fiber concrete formwork and the fiber concrete composite insulation board pass through The pull bolts are fixed together; (4) Set reinforcement between the fiber concrete formwork and fiber concrete composite insulation board and pour concrete to form a reinforced concrete load-bearing wall. 5. The exterior wall thermal insulation construction process according to claim 4, characterized in that the fiber concrete slab and the integrated thermal insulation formwork are reinforced by using carbon fiber reinforced polymer bars to pull bolts. 6. The exterior wall thermal insulation construction process according to claim 4, characterized in that, the EPS aggregate layer is composed of industrial waste EPS particles and cementing materials.

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