CN101793061B - Construction method of thermal insulation on six sides of a building by reusing board building materials - Google Patents

Abstract

The invention relates to a building hexahedral heat-preservation construction method for recycling board house materials, which belongs to the technical field of construction engineering. The method comprises the following steps of: constructing split board-house wall boards outside four outer walls of a building, constructing board-house roof boards on a roof of the building, and constructing the split board-house wall boards on the ground of the building to sufficiently exert the good heat-preserving and energy-saving function of the disassembled board house materials. By the heat-insulation and heat-preservation technology, a new building preserves more heat, saves more energy, resists moisture and mildew, is cool in summer and warm in winter, improves comfort levels of the building, protects the environment and saves cost.

Description

Construction method of thermal insulation on six sides of a building by reusing board building materials

technical field

The invention relates to a construction method in the technical field of construction engineering, in particular to a construction method for thermal insulation on six sides of a building by reusing board house materials.

Background technique

As a temporary over-building, prefabricated houses are often used for post-disaster resettlement. Once the post-disaster reconstruction is completed, the prefabricated houses will face demolition. After the demolition of the prefabricated house, it is originally construction waste, which is not easy to deal with and is not conducive to environmental protection. In particular, prefabricated houses are generally made of two layers of thin steel plates filled with polystyrene boards to make wall panels and roof panels. Among them, polystyrene boards are difficult to handle and cannot be decomposed after being buried underground for many years.

The existing low-rise or multi-storey civil or commercial buildings often adopt economical and applicable brick-concrete structures. However, the thermal insulation and moisture-proof performance of the brick-concrete structure is relatively poor, and a special external thermal insulation design is required to meet the national requirements for energy-saving and thermal insulation of buildings.

After searching the existing technology, it is found that there are domestic construction industry regulations JG149-2003 "Expanded Polystyrene Board Thin Plastering Exterior Wall External Thermal Insulation System" and engineering application examples. But this prior art is to adopt new polystyrene board material to do external wall insulation, and the price is expensive. This prior art does not use boards after the demolition of the board house, does not emphasize the comprehensive application of heat insulation technology, and does not simultaneously conduct six-side heat preservation on the four walls, roof and ground of the building.

Contents of the invention

Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a building six-sided thermal insulation construction method for reusing prefabricated house materials. By reusing prefabricated house materials, the requirements for thermal insulation and energy saving of buildings can be effectively met; it is beneficial to environmental protection while emphasizing the building Comprehensive application of advanced thermal insulation technology and low cost.

The present invention is achieved through the following technical solutions, and the present invention comprises the following steps:

The first step is to place two layers of plastic film on the backfill soil after the foundation construction of the new building is completed and the ground backfill soil is compacted.

The second step is to split the wall panel after the dismantling of the prefabricated house, place the thin steel plate of the split wall panel downward on the plastic film, make the polystyrene board face upward, and then use insulation nails to seal the split wall panel Fix it to the backfill layer on the ground, and cast the concrete ground layer on the polystyrene board surface, and paste the floor tiles on the concrete ground layer.

The wall panels are made of two layers of thin steel plates filled with polystyrene boards.

The splitting refers to: splitting the wall panel into two along the central axis in the thickness direction, one side of the split wall panel is a thin steel plate, and the other side is a polystyrene board.

The ground backfill layer refers to a backfill sandstone layer that bears indoor ground loads.

In the third step, after the main brick-concrete structure of the new building is capped, the exterior wall of the building is leveled with cement mortar, and the wall mortar leveling layer is made after drying.

The fourth step is to split the wall panel after dismantling the prefabricated house, and stick the thin steel plate of the split wall panel close to the wall mortar leveling layer and paste it with glue, so that the polystyrene board faces outward, and then use insulation nails to separate the thin steel plate The divided wall panel is fixed on the exterior wall of the building.

The fifth step is to use mortar to level the polystyrene board on the wall and hang two layers of steel wire mesh outside, then use four layers of steel wire mesh at the joints of adjacent polystyrene boards, and finally apply cement mortar and paint on the outer surface.

Step 6: After the cast-in-place roof slab of the new building is completed, lay the disassembled roof slab on the cast-in-place roof slab, and lay a waterproof layer on it, and the construction is completed.

The roof panel refers to: the roof panel after the prefabricated house is disassembled, which is made of two layers of thin steel plates filled with polystyrene boards, wherein the upper layer of thin steel plates is a corrugated corrugated plate.

The present invention has the following advantages:

Environmental protection: There are environmental protection problems in the treatment of polystyrene panels after the board room is dismantled. By promoting the new six-sided insulation system of brick-concrete structure, waste can be utilized;

Thermal insulation and energy saving: The six-sided thermal insulation system of the building is more comprehensive, which is the current international sustainable development design concept;

Earthquake resistance: Compared with the outer wall without thermal insulation design, the outer wall thermal insulation system of the present invention has the skin effect of thin steel plates, which strengthens the integrity of the structure and is conducive to the earthquake resistance of the structure;

Moisture-proof: The bottom floor not only considers heat preservation, but also considers the moisture-proof and heat-insulating function of the ground.

Description of drawings

Figure 1 is a schematic diagram of the application of the embodiment.

Figure 2 is a schematic diagram of the roof panel after the panel house is disassembled.

Fig. 3 is a schematic diagram of the wall panel after the demolition of the prefabricated house.

Fig. 4 is the partially enlarged schematic diagram of embodiment;

Among them: Figure 4a is a partially enlarged schematic diagram of the ground method; Figure 4b is a partially enlarged schematic diagram of the wall method; Figure 4c is a partially enlarged schematic diagram of the roof method.

Detailed ways

The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

This embodiment includes the following steps:

In the first step, as shown in Fig. 1 and Fig. 4a, after the foundation construction of the new building is completed and the ground backfill is compacted, two layers of plastic film 6 are placed on the ground backfill layer 11 first.

The second step is to dissect the wall panel after the board room is disassembled, place the thin steel plate 3 of the divided wall panel downward on the plastic film 6, make the polystyrene board 4 upward, and then use the insulation nail 5 to divide The final wall panel is fixed to the ground backfill layer 11, and a concrete ground layer 12 is cast in-situ on the divided wall panel, and floor tiles 15 are pasted on the concrete ground layer 12.

The wall panels are made of two layers of thin steel plates 3 filled with polystyrene boards 4 .

The splitting refers to: splitting the wall panel into two along the central axis in the thickness direction, one side of the split wall panel is a thin steel plate 3 , and the other side is a polystyrene board 4 .

The ground backfill layer refers to the sand and gravel backfill layer 11 that bears indoor ground loads.

The third step, as shown in Figure 3 and Figure 4b, after the main brick-concrete structure of the new building is capped, the exterior wall 10 of the building is leveled with cement mortar, and the wall mortar leveling layer is made after drying.

The fourth step is to split the wall panel after dismantling the prefabricated house, attach the thin steel plate 3 of the divided wall panel to the wall mortar leveling layer and paste it with glue, so that the polystyrene board 4 faces outward, and then use insulation nails 5 Fix the divided wall panel to the exterior wall of the building.

Step 5: Use mortar to level the surface of the polystyrene board 4 of the wall panel and hang two layers of steel wire mesh 13 outside, then use four layers of steel wire mesh 13 to connect the joints of the polystyrene board 4, and finally apply cement mortar 14 on the outer surface And paint.

The sixth step, as shown in Figure 2 and Figure 4c, after the cast-in-place roof slab of the new building is completed, the disassembled roof panel 1 is laid on the cast-in-place roof slab 7, and a waterproof layer 8 is laid on it. 8 upper part is made roof truss 9, and construction is finished.

The roof panel 1 refers to: the roof panel after the prefabricated house is disassembled, which is made of two layers of thin steel plates filled with polystyrene boards, wherein the upper thin steel plate 2 is a corrugated corrugated plate.

This embodiment turns waste into treasure, and exerts the good thermal insulation and energy-saving effect of the dismantled board house materials. Through thermal insulation technology, the newly-built houses are more thermal-insulated and energy-saving, moisture-proof and mildew-proof, warm in winter and cool in summer, improve the comfort of housing, protect The environment is in line with the sustainable development policy of the construction industry advocated by the state;

The disassembled board house panels and wall panels are used as insulation materials for the four sides of the building, the ground and the roof, which can greatly improve the thermal insulation performance of the walls, ground and roof, and realize the six-sided insulation effect of the building;

Since a thin steel plate is fixed on the outer wall, a skin effect is formed, which improves the overall mechanical performance of the structure, thereby improving the seismic performance of the structure.

Claims (2)

1. A building six-sided thermal insulation construction method for board house material reuse, is characterized in that, comprises the following steps: The first step, when the foundation construction of the new building is completed and the ground backfill is compacted, place two layers of plastic film on the backfill; The second step is to dissect the wall panels after the demolition of the prefabricated house. The wall panels are made of two layers of thin steel plates filled with polystyrene boards. One cut into two, one side of the split wall panel is a thin steel plate, and the other side is a polystyrene board, and the thin steel plate of the split wall panel is placed downward on the plastic film, so that the polystyrene board is upward, Then use insulation nails to fix the split wall panel to the ground backfill layer, and cast the concrete ground layer on the polystyrene board, and paste the floor tiles on the concrete ground layer; In the third step, after the main brick-concrete structure of the new building is capped, the exterior wall of the building is leveled with cement mortar, and the wall mortar leveling layer is made after drying; The fourth step is to split the wall panel after dismantling the prefabricated house, and stick the thin steel plate of the split wall panel to the wall mortar leveling layer and paste it with glue, so that the polystyrene board faces outward, and then use insulation nails to separate the thin steel plate The divided wall panel is fixed on the exterior wall of the building; Step 5: Use mortar to level the polystyrene board on the wall and hang two layers of steel wire mesh outside, then use four layers of steel wire mesh to connect the joints of the polystyrene boards on the adjacent wall, and finally apply cement mortar and paint on the outer surface ; Step 6: After the cast-in-place roof slab of the new building is completed, lay the disassembled roof slab on the cast-in-place roof slab, and lay a waterproof layer on it, and the construction is completed. 2. The building six-sided thermal insulation construction method for reuse of prefabricated house materials according to claim 1, wherein said roof panel refers to: the dismantled roof panel of the prefabricated house is filled with two layers of thin steel plates It is made of benzene board, and the upper thin steel plate is a corrugated board.

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