CN104674962B - The construction method of expanded perlite thermal-nsulation plate exterior wall external heat preservation system - Google Patents

Abstract

The invention discloses a construction method for an external thermal insulation system of an external wall of an expanded perlite thermal insulation board. The steps include: (1) wall surface treatment; (2) reference elastic thread; (3) material preparation and paste alkali-resistant glass fiber mesh cloth (4) Paste the expanded perlite insulation board; (5) Apply the mortar for the first pass in batches; (6) Construction of alkali-resistant glass fiber mesh; (7) Install anchors; (8) Apply the second pass in batches Mucilage; (9) Construction of expanded perlite insulation board as fire isolation belt; 10) Construction of exterior wall finish layer. The beneficial effect of the present invention is that it integrates the advantages of various external wall thermal insulation systems, and is a domestic leading external thermal insulation technology, which can meet the requirements of energy-saving standards in different climate zones. It has a wide range of applications, excellent thermal insulation performance, It has good weather resistance and excellent durability, which ensures the indoor thermal environment and environmental quality of the building, and reduces building energy consumption.

Description

Construction method of external wall thermal insulation system of expanded perlite thermal insulation board

technical field

The invention relates to a construction method, in particular to a construction method for an external thermal insulation system of an external wall of an expanded perlite thermal insulation board.

Background technique

With the rapid development of my country's economy and society, "energy conservation and emission reduction" has become an important industrial policy to achieve my country's sustainable development goals, and external wall insulation is an important part of building energy conservation. In recent years, the gradual improvement of energy-saving design standards has promoted the development of building insulation materials. It is required that new external wall insulation materials and systems must not only meet the heat preservation and fire performance requirements of energy-saving design, but also facilitate construction, ensure construction quality and Safety in use and minimizing the wet work of on-site construction have become the consensus of all parties concerned and the common goal of applied technology research. The transformation of building exterior wall insulation materials from organic systems to inorganic systems, and from slurry systems to panel systems is an inevitable trend in the development of the insulation industry and has broad market prospects.

The expanded perlite insulation board is made of tailings, tailings, lightweight expanded perlite, and special cementitious materials as the main raw materials, and the auxiliary materials are activator, hydrophobic agent, and phase change heat storage material, and are mixed according to the appropriate ratio. Composed of dry powder materials, etc., add an appropriate amount of clean water, and make a viscous slurry through a pre-mixing process. It is molded by an automatic plate making machine. It has fire resistance (A grade), light weight, high strength, impermeability, and small thermal conductivity. The thermal insulation board and the wall base have good bonding performance, good thermal insulation effect, and easy construction.

Contents of the invention

The technical problem to be solved by the present invention is to provide a construction method for the external thermal insulation system of the external wall of the expanded perlite thermal insulation board.

The present invention is achieved through the following technical solutions.

A construction method of an external thermal insulation system for an external wall of an expanded perlite thermal insulation board, the steps comprising:

(1) Wall treatment:

Make sure that the wall is flat and clean. If the wall is protruding, it should be chiseled and smoothed. If the wall is uneven, it should be filled with waterproof cement mortar;

(2) Benchmark spring line:

Play horizontal and vertical control lines on the wall to determine the expansion perlite insulation board joints, grid deformation joints and bracket positions;

(3) Material preparation and paste alkali-resistant glass fiber mesh:

Configure bonding mortar and plastering mortar; bonding mortar includes Portland cement 38%-44%, quartz sand 11%-17%, fine sand 11%-17%, and washed sand 11%-17% according to weight percentage , Fly ash 11%-17%, redispersible latex powder 1%-6%, polyvinyl alcohol 0.2%-0.3%, hydroxypropyl methylcellulose ether 0.1%-0.2%, plastering mortar is P. O42.5 grade Portland cement is configured according to the ratio of material to water: 1:0.21-0.23. The sand fineness modulus of Portland cement is 2.0-2.8, the particle size is not greater than 2.5mm, and the mud content is not greater than 5%, the amount of plastering mortar per square meter is 1-1.5kg, and the end edge of the expanded perlite insulation board on the wall, the structural deformation joint, and the opening of the outer door and window are first pasted with an alkali-resistant glass fiber mesh with adhesive mortar;

(4) Paste expanded perlite insulation board:

The size of the expanded perlite insulation board is 300-400mm×300-400mm, and the thickness is 20mm~60mm. The back of the expanded perlite insulation board is covered with adhesive mortar, and the board is pasted on the wall surface. The wall or the area delimited by the elastic line is pasted from the top or bottom, according to the order from top to bottom or bottom to top, left to right or right to left, use a rubber hammer to pat and flatten, paste When the left and right adjacent expanded perlite insulation boards are close to each other and aligned, the upper and lower adjacent expanded perlite insulation boards are arranged in staggered joints;

(5) The first batch of plastering glue:

Apply anti-cracking mortar on the outer surface of the expanded perlite insulation board twice, the thickness of the coating is 6-8mm, the thickness of the curtain wall is 4-6mm, the middle is reinforced with alkali-resistant glass fiber mesh cloth, and the expansion is used Anchors for reinforcement;

Coating finish is the building decoration that sprays, brushes slurry or paint after the base layer of the inner wall, ceiling or outer wall surface of the building is treated. It is mainly used to protect the wall, beautify the building, and meet the requirements of use, improve indoor lighting and clean condition. The curtain wall finish is the outer wall enclosure of the building, it is not load-bearing, it is hung up like a curtain, and it surrounds the periphery of the main structure so that the whole building can achieve a beautiful, multi-functional and safe exterior wall finish;

The anti-cracking mortar is applied to the surface of the expanded perlite insulation board for the first time, with a thickness of 3-4mm, and 2-3mm for the curtain wall finish. After the alkali-resistant glass fiber mesh cloth is laid, the second leveling anti-cracking mortar is applied;

(6) Construction of alkali-resistant glass fiber mesh:

The wall is paved with double layers of alkali-resistant fiberglass mesh, the first layer is butt-paved, and then the second layer is paved, and anti-cracking mortar is pasted between the two layers of alkali-resistant fiberglass mesh;

(7) Install anchors:

The number of anchors for the external wall insulation system of expanded perlite insulation boards is 5-12 pieces/㎡; for building curtain wall finishes, it is 4-8 pieces/㎡. The installation of anchors is carried out in two batches. The perlite insulation board is installed after being pre-fixed with adhesive mortar, and the number of bolts is 20-40% of the total number of anchor bolts; the second time is after the first anti-crack mortar is applied and the alkali-resistant glass fiber mesh is pressed in, and then When the mortar is initially set, the number of bolts is 60-80% of the total number of designed anchor bolts. Use an electric drill to drill holes on the wall corresponding to the anchor bolt holes reserved in the expanded perlite insulation board, and pass the anchors through the expanded perlite insulation board. inserted into the hole;

(8) Apply the surface mortar for the second time in batches:

The thickness of the second anti-cracking mortar is 3-4mm, and the thickness of the curtain wall is 2-3mm, covering the alkali-resistant glass fiber mesh cloth. After the construction is completed, it should be properly watered for 2-5 days;

(9) Construction of exterior wall finish layer:

After the surface layer is dry, start the flexible water-resistant putty construction. Use a steamed knife or a scraper to scrape in batches. After the first layer of flexible water-resistant putty is dry, scrape the second layer of flexible water-resistant putty, compact and polish it to survive. After the water-resistant putty is completely dry, start the surface coating construction. The surface coating includes 41%-47% of polyaluminum chloride, 5%-10% of PAC, 5%-10% of dispersant, and 5% of kaolin according to the weight percentage. -12%, titanium dioxide 5%-12%, AMP950.15%-0.20%, coalescent 1.5%-2.0%, propylene glycol 0.5%-1%, preservative 0.14%-0.19%, defoamer 0.22% -0.27%, lotion 18%-25%, water 7%-15%, start from the top of the wall and proceed from top to bottom.

Beneficial effects of the present invention:

Combining the advantages of various external wall thermal insulation systems, it is the leading external thermal insulation technology in China, which can meet the energy-saving standards in different climate zones. It has a wide range of applications, excellent thermal insulation performance, good weather resistance, and excellent durability. , to ensure the indoor thermal environment and environmental quality of the building, and reduce building energy consumption. Its safety can avoid common external insulation cracks and fire accidents.

Description of drawings

Fig. 1 is a schematic flow chart of the construction method of the external thermal insulation system of the outer wall of the expanded perlite thermal insulation board of the present invention.

detailed description

The present invention will be described in further detail below according to the drawings and embodiments.

Fig. 1 is the schematic flow chart of the construction method of the thermal insulation system of the outer wall of the expanded perlite thermal insulation board of the present invention, with reference to Fig. 1, the present invention, the construction method of the thermal insulation system of the outer wall of the outer wall of the expanded perlite thermal insulation board, the steps include:

A construction method of an external thermal insulation system for an external wall of an expanded perlite thermal insulation board, the steps comprising:

(1) Wall treatment:

Make sure that the wall is flat and clean. If the wall is protruding, it should be chiseled and smoothed. If the wall is uneven, it should be filled with waterproof cement mortar;

(2) Benchmark spring line:

Play horizontal and vertical control lines on the wall to determine the expansion perlite insulation board joints, grid deformation joints and bracket positions;

(3) Material preparation and paste alkali-resistant glass fiber mesh:

Configure bonding mortar and plastering mortar; bonding mortar includes Portland cement 38%-44%, quartz sand 11%-17%, fine sand 11%-17%, and washed sand 11%-17% according to weight percentage , Fly ash 11%-17%, redispersible latex powder 1%-6%, polyvinyl alcohol 0.2%-0.3%, hydroxypropyl methylcellulose ether 0.1%-0.2%, plastering mortar is P. O42.5 grade Portland cement is configured according to the ratio of material to water: 1:0.21-0.23. The sand fineness modulus of Portland cement is 2.0-2.8, the particle size is not greater than 2.5mm, and the mud content is not greater than 5%, the amount of plastering mortar per square meter is 1-1.5kg, and the end edge of the expanded perlite insulation board on the wall, the structural deformation joint, and the opening of the outer door and window are first pasted with an alkali-resistant glass fiber mesh with adhesive mortar;

(4) Paste expanded perlite insulation board:

The size of the expanded perlite insulation board is 300-400mm×300-400mm, and the thickness is 20mm~60mm. The back of the expanded perlite insulation board is covered with adhesive mortar, and the board is pasted on the wall surface. The wall or the area delimited by the elastic line is pasted from the top or bottom, according to the order from top to bottom or bottom to top, left to right or right to left, use a rubber hammer to pat and flatten, paste When the left and right adjacent expanded perlite insulation boards are close to each other and aligned, the upper and lower adjacent expanded perlite insulation boards are arranged in staggered joints;

(5) The first batch of plastering glue:

Apply anti-cracking mortar on the outer surface of the expanded perlite insulation board twice, the thickness of the coating is 6-8mm, the thickness of the curtain wall is 4-6mm, the middle is reinforced with alkali-resistant glass fiber mesh cloth, and the expansion is used Anchors for reinforcement;

The anti-cracking mortar is applied to the surface of the expanded perlite insulation board for the first time, with a thickness of 3-4mm, and 2-3mm for curtain wall finishes.

(6) Construction of alkali-resistant glass fiber mesh:

The wall is paved with double layers of alkali-resistant fiberglass mesh, the first layer is butt-paved, and then the second layer is paved, and anti-cracking mortar is pasted between the two layers of alkali-resistant fiberglass mesh;

(7) Install anchors:

The number of anchors for the external wall insulation system of expanded perlite insulation boards is 5-12 pieces/㎡; for building curtain wall finishes, it is 4-8 pieces/㎡. The installation of anchors is carried out in two batches. The perlite insulation board is installed after being pre-fixed with adhesive mortar, and the number of bolts is 20-40% of the total number of anchor bolts; It is carried out during the initial setting, and the number of bolts is 60-80% of the total number of designed anchor bolts. Use an electric drill to drill holes on the wall corresponding to the anchor bolt holes reserved in the expanded perlite insulation board, and insert the anchors through the expanded perlite insulation board. in the hole;

(8) Apply the surface mortar for the second time in batches:

The thickness of the second anti-cracking mortar is 3-4mm, and the thickness of the curtain wall is 2-3mm, covering the alkali-resistant glass fiber mesh cloth. After the construction is completed, it should be properly watered for 2-5 days;

(9) Construction of exterior wall finish layer:

After the surface layer is dry, start the flexible water-resistant putty construction. Use a steamed knife or a scraper to scrape in batches. After the first layer of flexible water-resistant putty is dry, scrape the second layer of flexible water-resistant putty, compact and polish it to survive. After the water-resistant putty is completely dry, start the surface coating construction. The surface coating includes 41%-47% of polyaluminum chloride, 5%-10% of PAC, 5%-10% of dispersant, and 5% of kaolin according to the weight percentage. -12%, titanium dioxide 5%-12%, AMP950.15%-0.20%, coalescent 1.5%-2.0%, propylene glycol 0.5%-1%, preservative 0.14%-0.19%, defoamer 0.22% -0.27%, lotion 18%-25%, water 7%-15%, start from the top of the wall and proceed from top to bottom.

The external wall thermal insulation system of expanded perlite insulation board is composed of adhesive mortar, expanded perlite insulation board, anti-crack mortar and paint or curtain wall finish layer. The way is reliable connection with the base layer, and the anti-cracking mortar is supplemented with alkali-resistant glass fiber mesh cloth for reinforcement and anti-cracking treatment.

The present invention combines the advantages of various external wall thermal insulation systems. It is the leading external thermal insulation technology in China and can meet the energy-saving standards in different climate zones. It has a wide range of applications, excellent thermal insulation performance, and good weather resistance. It has excellent durability, ensures the indoor thermal environment and environmental quality of the building, and reduces building energy consumption. Its safety can avoid common external insulation cracks and fire accidents. It meets the relevant requirements of the national green construction and has been proven in many engineering applications, with good social and environmental benefits.

Expanded perlite insulation board has high strength, non-toxic, odorless, non-volatile substances, good combination and water resistance. It is processed and formed in the factory, and pasted on site, which greatly reduces the wet work of site construction and speeds up the project progress; it is beneficial to energy saving and waste utilization. and environmental protection; the thermal insulation system can be painted or curtain wall finish, which meets the design requirements of different building facades, and has excellent cost performance; at the same time, it can promote the development of related industries, with remarkable economic and social benefits.

The above-mentioned embodiments are only for illustrating the technical concept and features of the present invention. The purpose is to enable those skilled in the art to understand and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

Claims (1)

1. the construction method of an expanded perlite thermal-nsulation plate exterior wall external heat preservation system, it is characterised in that Step includes:

(1) metope processes:

Guarantee wall surface levelling, cleaning, if metope protrudes, pick chipping whole, if metope injustice is whole Divide and then use waterproof cement mortar filling-in；

(2) benchmark snap the line:

At metope bullet horizontal and vertical control line, to determine expanded perlite thermal-nsulation plate seam, lattice Movement joint and bracket locations；

(3) alkali-resisting glass fiber screen cloth is prepared and pasted to material:

Configuration adhesive mortar and finishing mucilage；Adhesive mortar is according to percentage by weight, including silicic acid Salt cement 38%-44%, quartz sand 11%-17%, fine sand 11%-17%, washed-out sand 11%-17%, Flyash 11%-17%, redispersable latex powder 1%-6%, polyvinyl alcohol 0.2%-0.3%, Hydroxypropyl methyl cellulose ether 0.1%-0.2%, finishing mucilage is the silicate cement of P.O42.5 level Mud forms according to material-water ratio 1:0.21-0.23 configuration, and wherein the grain fineness number modulus of portland cement is 2.0-2.8, particle diameter is not more than 2.5mm, and clay content is not more than 5%, and the every square meter of finishing mucilage is used Measure at 1-1.5kg, at the end edge of metope expanded perlite thermal-nsulation plate, malformation seam, external door Window hole first pastes alkali-resisting glass fiber screen cloth with adhesive mortar；

(4) expanded perlite thermal-nsulation plate is pasted:

Expanded perlite thermal-nsulation board size is 300-400mm × 300-400mm, and thickness is 20mm～60mm, expanded perlite thermal-nsulation back full coat adhesive mortar, plate is pasted on wall Surface, bond area is not less than 80%, whole metope or the region delimited according to snap the line from Top or bottom start to paste, according to from top to bottom or from bottom to up, from left to right or from the right side to Left order, makes real with rubber hammer and flattens, during stickup about adjacent expanded perlite thermal-nsulation plate Between be close to mutually, align, fissure of displacement arrangement between neighbouring expanded perlite thermal-nsulation plate；

(5) criticize and smear first pass finishing mucilage:

Anticracking grout is smeared at twice, thickness during coating ornamental surface at expanded perlite thermal-nsulation plate outer surface When 6 8mm, curtain wall facing, thickness is 4 6mm, and middle folder alkali resistant glass fibre open weave cloth adds By force, and use expansion anchor to reinforce；

Anticracking grout is smeared in expanded perlite thermal-nsulation plate surface for the first time, thickness 3～4mm, curtain It is 2～3mm during wall facing, after paving alkali resistant glass fibre open weave cloth, smears second time levelling cracking resistance again Mortar；

(6) alkali-resistant glass fiber mesh cloth construction:

Metope paving bilayer alkali-resisting glass fiber screen cloth, ground floor docking paving, then carry out the second layer Paving, pastes anticracking grout between two-layer alkali-resisting glass fiber screen cloth；

(7) anchoring piece is installed:

The anchoring piece quantity of expanded perlite thermal-nsulation plate exterior wall external heat preservation system be 5-12/； During building curtain wall facing be 4-8/, the installation of anchoring piece is the most secondary to be carried out, and exists for the first time Expanded perlite thermal-nsulation plate adhesive mortar is installed after pre-fixing, and bolt quantity is crab-bolt sum 20-40%；Second time is after having smeared first pass anticracking grout and being pressed into alkali-resisting glass fiber screen cloth, Carrying out when mortar initial set, bolt quantity is the 60-80% of design crab-bolt sum, uses electric drill to exist The metope punching that the reserved crab-bolt hole of expanded perlite thermal-nsulation plate is corresponding, by anchoring piece through swollen Swollen pearlite heat-insulation plate inserts in the hole；

(8) criticize and smear second time finishing mucilage:

Anticracking grout thickness is 3～4mm for the second time, is 2～3mm, covers during curtain wall facing Alkali-proof glass fiber mesh, maintenance 2-5 days of should suitably sprinkling water after construction；

(9) construction of exterior wall finish layer should meet claimed below:

I.e. carry out flexible waterproof putty construction after float coat surface drying, criticize with steamed bun cutter or scraper plate and scrape, treat After first pass flexible waterproof putty surface drying, then scraping second time flexible waterproof putty, compacting is polished into Living, after flexible waterproof putty is the most solid, i.e. carry out investment precoat construction, investment precoat is pressed According to percentage by weight, including aluminium polychloride 41%-47%, PAC 5%-10%, dispersion Agent 5%-10%, kaolin 5%-12%, titanium dioxide 5%-12%, AMP95 0.15%-0.20%, Coalescents 1.5%-2.0%, propane diols 0.5%-1%, preservative 0.14%-0.19%, froth breaking Agent 0.22%-0.27%, emulsion 18%-25%, water 7%-15%, from the beginning of wall top, from upper Carry out under and.