CN103938767B - Trough type energy-saving bearing wall externally wrapped by steel wire mesh mortar plates and foamed concrete - Google Patents

Abstract

The utility model relates to a foamed concrete channel-shaped energy-saving load-bearing wall with a steel wire mesh mortar board and a method thereof, which relate to the field of building construction. The invention combines the steel wire mesh mortar board and the foamed concrete to form a combined energy-saving load-bearing wall. A steel frame is set between the mortar boards at both ends of the wall and at the corner to enhance the connection of the mortar boards. Fill foam concrete between two mortar boards. Compared with the existing wall, the foamed concrete groove-shaped energy-saving load-bearing wall of the outsourcing steel wire mesh mortar board of the present invention has better durability, has the function of heat preservation and energy saving, is light in weight, and has good seismic performance, and the surface of the wall is smooth and smooth, which can save the need for screeding. At the same time, the steel mesh mortar board acts as a formwork, which saves the process of setting up the formwork, and the construction is simple and convenient.

Description

Outsourcing steel wire mesh mortar board foam concrete channel energy-saving load-bearing wall and its method

technical field

The invention relates to an energy-saving load-bearing wall, in particular to a channel-shaped energy-saving load-bearing wall of outsourcing steel wire mesh mortar board foamed concrete and a method thereof.

Background technique

With the full development of my country's building energy-saving work, various types of enclosure structure wall insulation technologies have been extensively studied and popularized. At present, the thermal insulation of building energy-saving enclosure walls mainly adopts external wall insulation technology, which has high quality. Good thermal insulation effect and wide application range can basically eliminate thermal bridges and other advantages. It has been widely used at home and abroad, especially in cold and severe cold areas to show its superiority. However, the overall cost of external wall insulation is generally high, and the construction process It is more complicated, quality control is difficult, and the protective layer cracks, hollows, water seepage, and the insulation layer falls off from time to time, especially the system with facing bricks on the outside, which often causes people to worry. In addition, the insulation layer generally adopts organic or high-efficiency heat insulation containing organic components. The material is connected to the wall base as a whole through pasting, spraying, painting and other processes. The surface crack resistance protection layer is thin, and the fire resistance, durability and impact resistance are poor. The service life is 25 years, which is far shorter than the life of the building. Relevant personnel began to pay attention to insulation technologies such as self-insulation wall technology.

Self-insulation walls mainly refer to the use of light aggregate blocks, composite insulation blocks, light sand aerated concrete blocks, aerated concrete slab shale modulus porous bricks, river and lake silt sintered bricks, etc. Wall materials and related masonry mortar, connectors and other supporting materials are built and installed, and the external wall insulation system is composed of reasonable "cold bridge" and "joint" treatment measures. Compared with composite insulation technologies such as external wall insulation systems, self-insulation walls have the advantages of durability, fire prevention, impact resistance, convenient construction, low overall cost, less common quality problems, and the same lifespan as buildings. In recent years, they have been used in southern China Especially hot summer and cold winter regions began to receive more and more attention.

The energy-saving load-bearing wall of foamed concrete trough with steel wire mesh mortar board is filled with foamed concrete between two steel wire mortar boards, and the mortar boards are connected together by steel frame or steel bar truss. Its two different materials give it different mechanical properties. The wall is light in weight, good in earthquake resistance, has the function of heat preservation and energy saving, the surface of the wall is smooth and flat, and the process of supporting formwork is omitted, and the construction is simple and convenient.

Contents of the invention

The purpose of the present invention is to improve the durability of the wall body, make the wall body have a good thermal insulation function, improve the anti-seismic performance under the condition of ensuring a certain bearing capacity of the wall body, and make the construction more convenient at the same time. Combine the advantages of steel mesh mortar board and foam concrete to achieve the corresponding purpose.

In order to achieve the above object, the technical solution adopted by the present invention is the outsourcing steel mesh mortar board foamed concrete trough-shaped energy-saving load-bearing wall and its method. , between the two ends of the wall and the mortar boards at the corners of the wall, there are steel bars or steel truss connectors, and nuts are used to fix the two ends of the steel bars to the two steel mesh mortar boards to enhance the connection of the mortar boards;

Compared with the prior art, the present invention has the following beneficial effects.

The invention combines the prefabricated steel mesh mortar board and foamed concrete. Make the wall have good durability. Foamed concrete can play a good thermal insulation effect. The prefabricated steel wire mesh mortar board has high strength, and the mortar board is connected by steel bars or steel trusses, which can ensure the bearing capacity of the wall. The whole wall is light in weight, small in seismic inertial force and good in seismic performance. When pouring foamed concrete, the mortar board acts as a template, which saves the formwork process and makes the construction simple and convenient. At the same time, the outer side of the mortar board is smooth and flat, which can save steps such as leveling and plastering.

Description of drawings

Figure 1 is a cross-sectional view of the foamed concrete groove-shaped energy-saving load-bearing wall of the outsourcing steel wire mesh mortar board.

Figure 2 is a diagram of the connection form of steel bar trusses between prefabricated steel wire mortar boards.

Fig. 3 is an entity diagram of the foamed concrete groove-shaped energy-saving load-bearing wall of the outsourcing steel wire mesh mortar board.

In the figure: 1. Steel wire mesh mortar board, 2. Foamed concrete, 3. Rebar or steel truss connector, 4. High-strength polymerized mortar.

detailed description

The present invention will be further described below in conjunction with accompanying drawing.

Figure 1, Figure 2, and Figure 3 show the structural schematic diagrams of the foamed concrete trough-shaped energy-saving load-bearing walls covered with steel wire mesh mortar boards. The periphery of the wall is surrounded by steel mesh mortar boards 1; the inside of the wall is filled with foamed concrete 2; steel bar connectors 3 are set between the mortar boards 1 at both ends of the wall, and the two ends of the steel bars are connected to the two steel wire meshes with nuts. The mortar board 1 is fixed, and the steel mesh mortar board 1 is bonded with high-strength polymer mortar 4; the production sequence is as follows,

S1 selects HPB300 steel bars or steel bar truss connectors 3 with a diameter of about 6-8 mm, and punches round holes with a diameter of 6-8 mm on the steel mesh mortar board 1 at both ends of the wall and at the corners of the wall to facilitate steel bars or steel bar trusses. Connector 3 goes through. The round holes are set within a range of about 100-150mm horizontally from the end of the wall, and round holes are set vertically every 300mm. At the same time, if the wall is longer, round holes can be set every 600mm horizontally on the wall;

S2 connect the steel mesh mortar board 1 with a steel bar or a steel bar truss connector 3, and fix the two ends of the mortar board 1 and the reinforcement bar 3 with nuts;

S3 Stitching the mortar boards 1 alternately, using high-strength polymerized mortar 4 to bond the steel mesh mortar boards 1, so that the steel wire mortar boards 1 surround and form a wall;

S4 Pouring foamed concrete 2, after forming, it becomes the outer-wrapped steel mesh mortar board foamed concrete trough-shaped energy-saving load-bearing wall.

The wall is formed by splicing steel mesh mortar boards 1, and the length and height of the steel mesh cement mortar boards 1 can be processed into corresponding modules, such as 50, 150, 300, 600mm, etc., and the thickness is 20-25mm. The mortar is high-performance mortar, and there is a steel wire mesh inside as the reinforcement skeleton. When processing the steel mesh cement mortar board 1, only the flat side is used as the outside of the pouring formwork, and the rough side is the inner surface of the pouring formwork.

The joints between the steel mesh mortar boards 1 are bonded with high-strength polymer mortar 4. The high-strength polymer mortar 4 is a flexible connection of the steel mesh mortar boards 1. The thickness of the coating is not more than 5mm, so as to facilitate rapid bonding and hardening.

The steel bar or steel bar truss connector 3 uses HPB300 steel bar with a diameter of 6-8mm, and punches a round hole with a diameter of 6-8mm on the mortar board 1 for the steel bar to pass through. When using a steel bar truss link, the angle between the steel bar and the horizontal line is 45° , Arranged at equal intervals, the horizontal spacing is 250-300mm, and the vertical spacing is 400-500mm.

The steel bars or steel bar truss connectors 3 are set within a horizontal distance of about 100-150 mm from the end of the wall and the corner of the wall to play a positioning role. If the body is longer, the same steel bar or steel bar truss connector 3 can be set horizontally every 600mm or so between the steel bars at both ends of the wall or the steel bar truss connector 3 .

The steel bars or steel bar truss connectors 3 connecting the two steel mesh mortar panels 1 may also be steel bar trusses or other prefabricated connectors.

When the steel wire mesh mortar boards 1 are spliced, a staggered splicing method is adopted to enhance the connection between the steel wire mesh mortar boards 1 .

The above is a typical embodiment of the present invention, and the practice of the present invention is not limited thereto.

Claims (2)

1. The method of outsourcing steel wire mesh mortar board foamed concrete trough-shaped energy-saving load-bearing wall is characterized in that: the method includes the following, S1 Select steel bars or steel bar truss connectors (3) with a diameter of 6-8 mm, and drill round holes with a diameter of 6-8 mm on the steel mesh mortar boards (1) at both ends of the wall and at the corners of the wall, so that the steel bars or The steel bar truss connector (3) passes through; the round holes are set within the range of about 100-150mm horizontal distance from the end of the wall, and the round holes are set every 300mm vertically; Set round holes every 600mm in the horizontal distance; S2 connects the steel wire mesh mortar board (1) with a steel bar or a steel bar truss connector (3), and fixes both ends of the mortar board (1) and the steel bar or the steel bar truss connector (3) with nuts; S3 Stitching the mortar boards (1) staggeredly, using high-strength polymerized mortar (4) to bond the steel mesh mortar boards (1), so that the steel wire mortar boards (1) enclose a wall; S4 Pouring foamed concrete (2), after forming, it becomes the energy-saving and load-bearing wall of foamed concrete with steel mesh mortar board; the outer periphery of the wall is surrounded by steel mesh mortar board (1); Filling with foamed concrete (2); setting steel bar connectors (3) between the mortar boards (1) at both ends of the wall, and fixing the two ends of the steel bars with the two steel mesh mortar boards (1) with nuts, and the steel wire mortar boards ( 1) Bond with high-strength polymer mortar (4); the wall is made of steel mesh mortar boards (1), and the length and height of steel wire mesh cement mortar boards (1) can be processed into 50, 150, 300, 600mm Corresponding modulus, the thickness is 20-25mm, the mortar is high-performance mortar, and there is steel wire mesh inside as the reinforcement skeleton. When processing the steel wire mesh cement mortar board, only the flat side is used as the outside of the pouring formwork, and the rough side It is the inner surface of the pouring template; the joints between the steel mesh mortar boards (1) are bonded with high-strength polymer mortar (4), and the high-strength polymer mortar is a flexible connection of the steel wire mortar boards, and the thickness of the application is not more than 5mm, so as to facilitate rapid Bonding and hardening; the steel bar or steel truss connector (3) connecting the two steel mesh mortar boards (1) can also be a steel bar truss or other prefabricated connectors. When a steel bar truss is used for connection, the steel bar is HPB300, and the angle between the steel bar and the horizontal line 45°, arranged at equal intervals, with a horizontal interval of 250-300mm and a vertical interval of 400-500mm. 2. The method of outsourcing the steel wire mesh mortar board foamed concrete trough-shaped energy-saving load-bearing wall according to claim 1, characterized in that: when the steel wire mesh mortar board (1) is spliced, a staggered splicing method is used to strengthen the steel wire mesh mortar board (1) The connection between them.