CN111042362A - Gel non-combustible heat-insulation decorative plate external wall external heat-insulation system and construction method - Google Patents

Gel non-combustible heat-insulation decorative plate external wall external heat-insulation system and construction method Download PDF

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Publication number
CN111042362A
CN111042362A CN201911388821.6A CN201911388821A CN111042362A CN 111042362 A CN111042362 A CN 111042362A CN 201911388821 A CN201911388821 A CN 201911388821A CN 111042362 A CN111042362 A CN 111042362A
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China
Prior art keywords
heat
gel
insulation
less
equal
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CN201911388821.6A
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Chinese (zh)
Inventor
陈建军
叶家元
陈建春
谢思松
李运北
王宏霞
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Jiangsu Jianhong Environmental Protection Material Technology Co Ltd
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Jiangsu Jianhong Environmental Protection Material Technology Co Ltd
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Priority to CN201911388821.6A priority Critical patent/CN111042362A/en
Publication of CN111042362A publication Critical patent/CN111042362A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/78Heat insulating elements
    • E04B1/80Heat insulating elements slab-shaped
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/762Exterior insulation of exterior walls
    • E04B1/7629Details of the mechanical connection of the insulation to the wall
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/762Exterior insulation of exterior walls
    • E04B1/7637Anchoring of separate elements through the lining to the wall
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/94Protection against other undesired influences or dangers against fire
    • E04B1/941Building elements specially adapted therefor
    • E04B1/942Building elements specially adapted therefor slab-shaped

Abstract

The invention discloses an external thermal insulation system of a gel non-combustible thermal insulation decorative plate and a construction method, wherein the external thermal insulation system comprises a gel non-combustible thermal insulation decorative plate, bonding mortar, an anchoring piece, a caulking material and sealant, and is arranged on the outer side of a base layer wall; the performance indexes of the external thermal insulation system of the gel thermal insulation decorative plate external wall comprise: weather resistance, no pulverization, bulging, bubbling and shedding phenomena in appearance, no crack with width larger than 0.10mm, and tensile bonding strength between the panel and the gel insulation board more than or equal to 0.10 MPa; the tensile bonding strength is more than or equal to 0.10MPa and the gel insulation board is damaged; impact resistance, first layer 10J, second and above 3J; the single-point anchoring force is more than or equal to 0.60 kN. The invention has the beneficial effects that the invention is applied to the field of building energy-saving and heat-insulating engineering, is a heat-insulating and decorating integrated structure arranged on the outer side of the outer wall of a building, and is suitable for residential buildings, public buildings and industrial base layer wall external heat-insulating engineering which are newly built, expanded and reconstructed in areas with the seismic fortification intensity of 6-8 degrees.

Description

Gel non-combustible heat-insulation decorative plate external wall external heat-insulation system and construction method
Technical Field
The invention belongs to the technical field of building walls, particularly relates to an external thermal insulation system for an external wall in building energy-saving thermal insulation engineering, and particularly relates to an external thermal insulation system for an external wall with a gel non-combustible thermal insulation decorative plate and a construction method.
Background
In recent years, energy saving and environmental protection have become common topics worldwide. With the implementation of new building energy-saving standards in China, buildings have been developed from low-level settlement people's residence to high-level green ecological buildings. In the heat consumption of buildings, the heat consumption of the outer wall accounts for about 30 percent. Among a plurality of heat preservation technologies, the technology capable of remarkably reducing the K value of an outer wall to reduce the energy consumption of a building belongs to the outer wall heat preservation technology, and an outer wall heat preservation system installed on the outer surface of the outer wall generally comprises a base layer, a heat preservation layer, a protection layer and fixing materials (adhesives, anchoring parts and the like).
In the prior art, external thermal insulation systems and construction methods of external walls are numerous, most of thermal insulation materials in the market are polystyrene, and external thermal insulation construction is carried out by using a small-block pasting method, and the method has the main defects of low thermal resistance and difficulty in achieving the index of saving energy by 65%; the small adhered plate seams are easy to seep rainwater, and once the rainwater seeps into the plate seams, the wall heat-insulating layer is damaged through freeze-thaw cycles. In recent years, polyurethane is also adopted as a heat insulation layer, the method comprises the steps of removing a mold, avoiding mold removal, and manufacturing a fine external decorative surface layer besides a mounting template, so that the labor and the material are wasted, the construction period is prolonged, and the construction cost is increased. However, with the development of building material industry, the heat insulation layer in the external heat insulation system of the external wall needs to have higher weather resistance, wind load resistance, impact resistance, freeze-thaw resistance, water resistance and incombustibility.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an external thermal insulation system of a gel non-combustible thermal insulation decorative plate and a construction method, which are applied to the field of building energy-saving thermal insulation engineering, are arranged in a thermal insulation and decoration integrated structure on the outer side of an external wall of a building, and are suitable for residential buildings, public buildings and external thermal insulation engineering of industrial base wall in areas newly built, expanded and reconstructed with seismic fortification intensity of 6-8 degrees.
In order to achieve the purpose, the invention adopts the following technical scheme:
the gel non-combustible heat preservation decorative plate external wall external heat preservation system is characterized by comprising a gel non-combustible heat preservation decorative plate, bonding mortar, an anchoring piece, a caulking material and sealant, wherein the gel non-combustible heat preservation decorative plate, the bonding mortar, the anchoring piece, the caulking material and the sealant are arranged on the outer side of a base layer wall; the bonding layer is made of bonding mortar; the performance indexes of the external thermal insulation system of the gel thermal insulation decorative plate external wall comprise: weather resistance, no pulverization, bulging, bubbling and shedding phenomena in appearance, no crack with width larger than 0.10mm, and tensile bonding strength between the panel and the gel insulation board more than or equal to 0.10 MPa; the tensile bonding strength is more than or equal to 0.10MPa and the gel insulation board is damaged; impact resistance, first layer 10J, second and above 3J; the single-point anchoring force is more than or equal to 0.60kN, and the thermal resistance meets the design requirement.
Furthermore, the base wall is one of reinforced concrete, solid masonry, perforated brick masonry, hollow block masonry and autoclaved aerated concrete; the base wall is provided with a waterproof mortar leveling layer and meets the following requirements: the strength grade of the waterproof mortar leveling layer is required to meet the design requirement; the thickness of the waterproof mortar leveling layer is not less than 12mm, and preferably 20 mm; the base layer wall body is treated by adopting an interface agent.
Furthermore, the gel non-combustible heat-insulation decorative plate comprises a gel non-combustible heat-insulation plate and a veneer, is a plate-shaped product prefabricated and formed in a factory, is one of a coating veneer layer and an A4 thin porcelain veneer, has heat-insulation and decoration functions, is a light heat-insulation plate prepared by mixing and stirring in proportion, distributing, carrying out compression molding and carrying out thermal curing process, and takes vitrified micro bubbles as main light aggregate, cement and gas-phase silica as gelling materials and adding a proper amount of reinforcing fibers and functional additives; the allowable dimensional deviation and performance indicators should include: the length is +/-2.0, the width is +/-1.5, the thickness is +1.5, the diagonal difference is less than or equal to 3.0, and the flatness of the plate surface is less than or equal to 2.0.
Furthermore, when the veneer is a coating veneer, the performance indexes of the gel heat-insulation decorative plate comprise: mass per unit area less than 25kg/m2(ii) a The tensile bonding strength is more than or equal to 0.10MPa and the gel insulation board is damaged; bending resistance load not less than the dead weight of the plate; the water absorption capacity is less than or equal to 500g/m2(ii) a Water impermeability, 2h water impermeability; the performance indexes of the coating finish comprise: acid resistance, no abnormality in 48 h; alkali resistance, no abnormality in 96 h; salt spray resistance, no abnormality after 500 h; aging resistance, and is qualified after 1000 h; the adhesive force is less than or equal to grade 1; the performance indexes of the gel insulation board comprise: apparent density is less than or equal to 200kg/m3(ii) a The heat conductivity coefficient is less than or equal to 0.048W/(m.K), and the correction coefficient is 1.05; the compressive strength is more than or equal to 0.30 MPa; the tensile strength in the direction vertical to the plate surface is more than or equal to 0.10 MPa; the volume water absorption rate is less than or equal to 3.0 percent; the drying shrinkage value is less than or equal to 0.80 mm/m; the softening coefficient is more than or equal to 0.80; combustion performance class a.
Furthermore, when the veneer is an A4 thin porcelain veneer, the performance indexes of the gel heat-preservation decorative board comprise: mass per unit area of 20 to 30kg/m2(ii) a The tensile bonding strength is more than or equal to 0.10MPa and the gel insulation board is damaged; bending resistance load not less than the dead weight of the plate; the water absorption capacity is less than or equal to 500g/m2(ii) a Water impermeability, 2h water impermeability; a4 thin porcelain panel should have a thickness of 3.8-5.5 mm, and its physical and chemical properties should meet the requirements of dry pressing ceramic tile (E is less than or equal to 0.5% BI a class) in appendix G of GB/T4100-; the performance indexes of the gel insulation board comprise: an apparent density of 201 to 230kg/m3(ii) a The heat conductivity coefficient is less than or equal to 0.060W/(m.K), and the correction coefficient is 1.10; the compressive strength is more than or equal to 0.40 MPa; the tensile strength in the direction vertical to the plate surface is more than or equal to 0.10 MPa; the volume water absorption rate is less than or equal to 6.5 percent; the drying shrinkage value is less than or equal to 0.80 mm/m; the softening coefficient is more than or equal to 0.80; combustion performance class a.
Furthermore, the area of a single block of the gel non-combustible heat-preservation decorative plate is not more than 1m2And the quality of the veneer is not suitable to be more than 30 kg.
Furthermore, the bonding mortar is dry-mixed mortar containing ordinary portland cement, redispersible polymer rubber powder and medium sand, is quantitatively mixed with water when in use, and is used for adhering the gel non-combustible heat-insulation decorative plate; the performance indexes of the bonding mortar comprise: the tensile bonding strength with the cement mortar block is more than or equal to 0.6MPa, the water resistance strength is 48 hours of soaking, 2 hours of drying and more than or equal to 0.4 MPa; soaking in water for 48h, and drying for 7d under pressure of not less than 0.6 MPa; the tensile bonding strength with the gel non-combustible insulation board is not less than 0.10MPa, the interface is damaged in the insulation board, the water resistance strength is 48 hours after soaking, the drying time is 2 hours, and the tensile bonding strength is not less than 0.08 MPa; soaking in water for 48h, and drying for 7d under the pressure of not less than 0.1 MPa; the operable time is 1.5-4.0 h; the thickness of the adhesive layer should not be less than 3 mm.
Furthermore, the anchoring piece is a metal structural piece for connecting and fixing the gel non-combustible heat-insulation decorative plate and the base layer wall; comprises an anchoring pressing plate (a clamping piece) and an anchor bolt (comprising a metal screw and a plastic expansion pipe); the anchor assembly adopts sideboard anchor formula, and its performance index includes: the standard value of the tensile bearing capacity of a single anchor is more than or equal to 0.80kN of a concrete base layer and more than or equal to 0.60kN of a masonry base layer; the suspension force is more than or equal to 0.10 kN; the anchoring piece of the external thermal insulation system of the gel thermal insulation decorative plate external wall is arranged to meet the following requirements: the heat insulation decorative plate is suitable to be fixed by adopting the edge, the fixed edge is not less than 2 parallel edges, and the number of the decorative plates fixed by the parallel anchoring parts is not less than 8/m2And each plate should not be less than 4; when each set of anchoring piece is used for fixing two heat-insulation decorative plates, a four-side fixing mode is not suitable; the effective anchoring depth of the anchor bolt extending into the base wall body meets the following requirements: the wall body of the reinforced concrete base layer is not less than 30 mm; the autoclaved aerated concrete base wall body is not less than 50 mm; other masonry base layer walls should not be less than 40 mm.
Furthermore, the caulking material comprises a heat preservation strip and a sealant, the sealant adopts a silicone sealant, the requirement of the existing national standard of silicone and modified silicone building sealant GB/T14683 is met, the flame retardance meets the requirement of the existing national standard of flame retardant sealant for buildings GB/T24267, and the bonding strength with the veneer is not lower than 0.40 MPa.
Furthermore, the gel non-combustible heat-insulation decorative plate external wall external heat-insulation system is also provided with an exhaust piece, the exhaust piece is arranged at the intersection of the horizontal seam and the vertical seam of the heat-insulation decorative plate, the included angle between the axis of the exhaust pipe and the wall surface is 60 degrees, the pipe orifice is downward, the bonding is firm, and every 30m of the exhaust pipe is firm2The number of the wall surfaces is 1.
Furthermore, 1 drain pipe should be installed at every 10m of the water dispersing and wall body, and 1 drain pipe should be installed at less than 10 m.
The construction method of the gel non-combustible heat-insulation decorative plate external wall external heat-insulation system is characterized by comprising the following steps:
A. the construction environment temperature is not lower than 5 ℃, the strong sun exposure is avoided in summer, and the construction cannot be carried out in windy weather, rain and snow days above 5 level;
B. the wall surface of the base wall body meets the following requirements: the wall surface should be dry (the water content should be less than 8 percent), clean and free of attachments which hinder bonding such as oil stains, release agents and the like; removing bulges, hollows and loose parts and leveling; the wall surface can not be subjected to the phenomena of dust explosion, pulverization, peeling and saltpetering; the bonding strength of the waterproof mortar leveling layer of the wall surface meets the requirements of relevant standards, and the flatness and the verticality of the wall surface meet the regulations; the wall surface tolerance deviation is 4mm, the surface flatness is 4mm, and the inspection method uses a 2m guiding rule and a clearance gauge for inspection; the verticality of the vertical surface is 4mm, and the inspection method uses a 2m vertical detection ruler for inspection; the squareness of the internal and external corners is 3mm, and the inspection method uses a square ruler and a clearance gauge for inspection;
C. the elastic line before the gel heat-insulation decorative plate is pasted and constructed meets the following requirements: when the bullet lines are separated, the vertical and horizontal reference lines are popped; ejecting an installation control line of the heat-insulation decorative plate according to a design plate arrangement drawing and a construction scheme, wherein the width of a plate seam is 3-5 mm;
D. the pasting construction of the gel heat-preservation decorative plate meets the following requirements: and (3) removing dust from the pasted plate surface before pasting. (ii) a Before pasting, fixing a bracket at the position above a water dispersion slope; the heat-insulating decorative plate is adhered by a strip adhering method or a point frame adhering method, and the adhering area meets the design requirement; when a point frame bonding method is adopted, air exhaust pieces and water discharge pipes are required to be arranged, the number of the air exhaust pieces is required to meet the design requirement, 1 water discharge pipe is arranged at every 10m of the positions of water distribution and the wall body, and 1 water discharge pipe is arranged at the position less than 10 m; the adhered heat-insulating decorative plate is adhered along the horizontal direction from bottom to top; the upper and lower plate seams can adopt a through seam method and can also adopt a staggered seam method; the side surface of the heat-insulating decorative plate is not coated or stained with bonding mortar, the heat-insulating decorative plate is uniformly kneaded and compacted with the wall surface when being pasted, and a rubber hammer is used for tapping the plate surface, so that the height difference between the plates is not more than 1.5 mm; removing the extruded adhesive mortar in time when a heat-insulating decorative plate is stuck;
E. when the sticking height of the heat-insulation decorative plate is less than 50m, the sticking area of the bonding layer is not less than 50% of the area of the heat-insulation decorative plate, and when the sticking height is 50 m-80 m, the sticking area is not less than 60% of the area of the heat-insulation decorative plate; the heat-insulating decorative boards at the following parts are preferably fully adhered: pasting a wall surface with the height of more than 80m, a wall surface within 2m from the outdoor terrace, an external corner of the external wall of 300mm, the peripheral part of a hole at the outer side of a door and a window, a convex window bottom plate, a single plate with the length or width of not more than 300mm, the top of a parapet wall or a wall surface within 300mm below an eave.
F. The anchor installation should meet the following requirements: an anchoring part is arranged in time after each heat-insulating decorative plate is pasted; the anchoring piece is basically assembled before installation, a certain adjustment allowance is reserved for the positioning screw before installation, and the positioning screw is screwed after the positioning screw is installed and adjusted in place; drilling a hole by using a drill bit with a proper diameter, wherein the drilling depth is greater than the length of the anchor rod; the anchoring piece is tightly attached to the heat-insulation decorative plate; when the bearing piece is arranged, the bearing piece is firstly installed, and then the heat-insulation decorative plate is installed, wherein the distance between the bearing piece or the anchoring points of the bearing piece is not more than 600 mm;
G. filling caulking materials for construction;
H. treating board surfaces
I. The mounting allowable deviation and inspection method of the gel heat-insulation decorative plate comprises the following steps: the surface flatness is 4mm, and a 2m guiding rule and a clearance gauge are used for checking; the verticality of the vertical surface with the height not more than 2000mm is 4mm, and the vertical surface is checked by a 2m vertical ruler; the squareness of the internal and external angles is 3mm, and the square is checked by a square ruler; the straightness of the sealant is 2mm, 5m of the line is pulled, and less than 5m of the line is pulled through, and the check is carried out by using a ruler.
Compared with the prior art, the invention has the beneficial effects that the invention is applied to the field of building energy-saving and heat-insulating engineering, is a heat-insulating and decorating integrated structure arranged outside the outer wall of a building, and is suitable for residential buildings, public buildings and industrial base wall external heat-insulating engineering newly built, expanded and reconstructed in areas with 6-8 degrees of seismic fortification intensity.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic cross-sectional structure of an embodiment of the present invention.
FIG. 2 is a flow chart of the construction method of the present invention.
In the figure: 1-base wall 2-adhesive layer 3-gel non-combustible heat preservation board 4-veneer 5-anchor bolt 6-caulking material.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, not all embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figure 1, the gel non-combustible heat preservation decorative plate external wall external heat preservation system is characterized by comprising a gel non-combustible heat preservation decorative plate, bonding mortar, anchoring pieces, caulking materials and sealant, and the gel non-combustible heat preservation decorative plate, the anchoring pieces, the caulking materials and the sealant are arranged on the outer side of a base layer wall body; the bonding layer is made of bonding mortar; the performance indexes of the external thermal insulation system of the gel thermal insulation decorative plate external wall comprise: weather resistance, no pulverization, bulging, bubbling and shedding phenomena in appearance, no crack with width larger than 0.10mm, and tensile bonding strength between the panel and the gel insulation board more than or equal to 0.10 MPa; the tensile bonding strength is more than or equal to 0.10MPa and the gel insulation board is damaged; impact resistance, first layer 10J, second and above 3J; the single-point anchoring force is more than or equal to 0.60kN, and the thermal resistance meets the design requirement.
The base wall is one of reinforced concrete, solid masonry, porous brick masonry, hollow block masonry and autoclaved aerated concrete; the basic unit wall body sets up waterproof mortar screed-coat to should accord with following requirement: the strength grade of the waterproof mortar leveling layer is required to meet the design requirement; the thickness of the waterproof mortar leveling layer is not less than 12mm, and preferably 20 mm; the base layer wall body is treated by adopting an interface agent.
The gel non-combustible heat-insulation decorative plate comprises a gel non-combustible heat-insulation plate and a veneer, is a plate-shaped product prefabricated and formed in a factory, the veneer is one of a coating veneer layer and an A4 thin porcelain veneer, has heat-insulation and decoration functions, is composed of vitrified micro bubbles serving as main light aggregate, cement and gas-phase silica serving as gelling materials and a proper amount of reinforcing fibers and functional additives, is mixed and stirred in proportion, is subjected to cloth distribution and compression molding, and is prepared into a light heat-insulation plate through a thermal curing process; the allowable dimensional deviation and performance indicators should include: the length is +/-2.0, the width is +/-1.5, the thickness is +1.5, the diagonal difference is less than or equal to 3.0, and the flatness of the plate surface is less than or equal to 2.0.
When the decorative board is a coating decorative board, the performance indexes of the gel heat-insulation decorative board comprise: mass per unit area less than 25kg/m2(ii) a The tensile bonding strength is more than or equal to 0.10MPa and the gel insulation board is damaged; bending resistance load not less than the dead weight of the plate; the water absorption capacity is less than or equal to 500g/m2(ii) a Water impermeability, 2h water impermeability; the performance indexes of the coating finish comprise: acid resistance, no abnormality in 48 h; alkali resistance, no abnormality in 96 h; salt spray resistance, no abnormality after 500 h; aging resistance, and is qualified after 1000 h; the adhesive force is less than or equal to grade 1; the performance indexes of the gel insulation board comprise: apparent density is less than or equal to 200kg/m3(ii) a The heat conductivity coefficient is less than or equal to 0.048W/(m.K), and the correction coefficient is 1.05; the compressive strength is more than or equal to 0.30 MPa; the tensile strength in the direction vertical to the plate surface is more than or equal to 0.10 MPa; the volume water absorption rate is less than or equal to 3.0 percent; the drying shrinkage value is less than or equal to 0.80 mm/m; the softening coefficient is more than or equal to 0.80; combustion performance class a.
When the decorative board is A4 thin porcelain facing, the performance index of gel heat preservation decorative board includes: mass per unit area of 20 to 30kg/m2(ii) a The tensile bonding strength is more than or equal to 0.10MPa and the gel insulation board is damaged; bending resistance load not less than the dead weight of the plate; the water absorption capacity is less than or equal to 500g/m2(ii) a Water impermeability, 2h water impermeability; a4 thin porcelain panel should have a thickness of 3.8-5.5 mm, and its physical and chemical properties should meet the requirements of dry pressing ceramic tile (E is less than or equal to 0.5% BI a class) in appendix G of GB/T4100-; the performance indexes of the gel insulation board comprise: an apparent density of 201 to 230kg/m3(ii) a The heat conductivity coefficient is less than or equal to 0.060W/(m.K), and the correction coefficient is 1.10;the compressive strength is more than or equal to 0.40 MPa; the tensile strength in the direction vertical to the plate surface is more than or equal to 0.10 MPa; the volume water absorption rate is less than or equal to 6.5 percent; the drying shrinkage value is less than or equal to 0.80 mm/m; the softening coefficient is more than or equal to 0.80; combustion performance class a.
The area of a single gel non-combustible heat-preservation decorative plate is not more than 1m2And the quality of the veneer is not suitable to be more than 30 kg.
The bonding mortar is dry-mixed mortar containing ordinary portland cement, redispersible polymer rubber powder and medium sand, is quantitatively mixed with water when in use, and is used for adhering the gel non-combustible heat-preservation decorative plate; the performance indexes of the bonding mortar comprise: the tensile bonding strength with the cement mortar block is more than or equal to 0.6MPa, the water resistance strength is 48 hours of soaking, 2 hours of drying and more than or equal to 0.4 MPa; soaking in water for 48h, and drying for 7d under pressure of not less than 0.6 MPa; the tensile bonding strength with the gel non-combustible insulation board is not less than 0.10MPa, the interface is damaged in the insulation board, the water resistance strength is 48 hours after soaking, the drying time is 2 hours, and the tensile bonding strength is not less than 0.08 MPa; soaking in water for 48h, and drying for 7d under the pressure of not less than 0.1 MPa; the operable time is 1.5-4.0 h; the thickness of the adhesive layer should not be less than 3 mm.
The anchoring piece is a metal structural piece for connecting and fixing the gel non-combustible heat-insulation decorative plate and the base layer wall; comprises an anchoring pressing plate (a clamping piece) and an anchor bolt (comprising a metal screw and a plastic expansion pipe); the anchor assembly adopts sideboard anchor formula, and its performance index includes: the standard value of the tensile bearing capacity of a single anchor is more than or equal to 0.80kN of a concrete base layer and more than or equal to 0.60kN of a masonry base layer; the suspension force is more than or equal to 0.10 kN; the anchoring piece of the external thermal insulation system of the gel thermal insulation decorative plate external wall is arranged to meet the following requirements: the heat insulation decorative plate is suitable to be fixed by adopting the edge, the fixed edge is not less than 2 parallel edges, and the number of the decorative plates fixed by the parallel anchoring parts is not less than 8/m2And each plate should not be less than 4; when each set of anchoring piece is used for fixing two heat-insulation decorative plates, a four-side fixing mode is not suitable; the effective anchoring depth of the anchor bolt extending into the base wall body meets the following requirements: the wall body of the reinforced concrete base layer is not less than 30 mm; the autoclaved aerated concrete base wall body is not less than 50 mm; other masonry base layer walls should not be less than 40 mm.
The caulking material comprises a heat preservation strip and a sealant, the sealant adopts silicone sealant, the requirement of the existing national standard of silicone and modified silicone building sealant GB/T14683 is met, the flame retardance meets the requirement of the existing national standard of flame retardant sealant for building GB/T24267, and the bonding strength with the veneer is not lower than 0.40 MPa.
The gel non-combustible heat-insulation decorative plate outer wall outer heat-insulation system is also provided with an exhaust part and a drain pipe, wherein the exhaust part is arranged at the intersection of the horizontal seam and the vertical seam of the heat-insulation decorative plate, the included angle between the axis of the drain pipe and the wall surface is 60 degrees, the pipe orifice is downward, the bonding is firm, and every 30m of the pipe orifice is downward2The number of the wall surfaces is 1.
1 drain pipe should be installed at every 10m, and less than 10m 1 drain pipe should be installed at the scattered water and wall body department.
As shown in figure 2, the construction method of the gel non-combustible heat-insulation decorative plate external wall external heat-insulation system is characterized by comprising the following steps:
A. the construction environment temperature is not lower than 5 ℃, the strong sun exposure is avoided in summer, and the construction cannot be carried out in windy weather, rain and snow days above 5 level;
B. the wall surface of the base wall body meets the following requirements: the wall surface should be dry (the water content should be less than 8 percent), clean and free of attachments which hinder bonding such as oil stains, release agents and the like; removing bulges, hollows and loose parts and leveling; the wall surface can not be subjected to the phenomena of dust explosion, pulverization, peeling and saltpetering; the bonding strength of the waterproof mortar leveling layer of the wall surface meets the requirements of relevant standards, and the flatness and the verticality of the wall surface meet the regulations; the wall surface tolerance deviation is 4mm, the surface flatness is 4mm, and the inspection method uses a 2m guiding rule and a clearance gauge for inspection; the verticality of the vertical surface is 4mm, and the inspection method uses a 2m vertical detection ruler for inspection; the squareness of the internal and external corners is 3mm, and the inspection method uses a square ruler and a clearance gauge for inspection;
C. the elastic line before the gel heat-insulation decorative plate is pasted and constructed meets the following requirements: when the bullet lines are separated, the vertical and horizontal reference lines are popped; ejecting an installation control line of the heat-insulation decorative plate according to a design plate arrangement drawing and a construction scheme, wherein the width of a plate seam is 3-5 mm;
D. the pasting construction of the gel heat-preservation decorative plate meets the following requirements: and (3) removing dust from the pasted plate surface before pasting. (ii) a Before pasting, fixing a bracket at the position above a water dispersion slope; the heat-insulating decorative plate is adhered by a strip adhering method or a point frame adhering method, and the adhering area meets the design requirement; when a point frame bonding method is adopted, air exhaust pieces and water discharge pipes are required to be arranged, the number of the air exhaust pieces is required to meet the design requirement, 1 water discharge pipe is arranged at every 10m of the positions of water distribution and the wall body, and 1 water discharge pipe is arranged at the position less than 10 m; the adhered heat-insulating decorative plate is adhered along the horizontal direction from bottom to top; the upper and lower plate seams can adopt a through seam method and can also adopt a staggered seam method; the side surface of the heat-insulating decorative plate is not coated or stained with bonding mortar, the heat-insulating decorative plate is uniformly kneaded and compacted with the wall surface when being pasted, and a rubber hammer is used for tapping the plate surface, so that the height difference between the plates is not more than 1.5 mm; removing the extruded adhesive mortar in time when a heat-insulating decorative plate is stuck;
E. when the sticking height of the heat-insulation decorative plate is less than 50m, the sticking area of the bonding layer is not less than 50% of the area of the heat-insulation decorative plate, and when the sticking height is 50 m-80 m, the sticking area is not less than 60% of the area of the heat-insulation decorative plate; the heat-insulating decorative boards at the following parts are preferably fully adhered: pasting a wall surface with the height of more than 80m, a wall surface within 2m from the outdoor terrace, an external corner of the external wall of 300mm, the peripheral part of a hole at the outer side of a door and a window, a convex window bottom plate, a single plate with the length or width of not more than 300mm, the top of a parapet wall or a wall surface within 300mm below an eave.
F. The anchor installation should meet the following requirements: an anchoring part is arranged in time after each heat-insulating decorative plate is pasted; the anchoring piece is basically assembled before installation, a certain adjustment allowance is reserved for the positioning screw before installation, and the positioning screw is screwed after the positioning screw is installed and adjusted in place; drilling a hole by using a drill bit with a proper diameter, wherein the drilling depth is greater than the length of the anchor rod; the anchoring piece is tightly attached to the heat-insulation decorative plate; when the bearing piece is arranged, the bearing piece is firstly installed, and then the heat-insulation decorative plate is installed, wherein the distance between the bearing piece or the anchoring points of the bearing piece is not more than 600 mm;
G. filling caulking materials for construction;
H. treating board surfaces
I. The mounting allowable deviation and inspection method of the gel heat-insulation decorative plate comprises the following steps: the surface flatness is 4mm, and a 2m guiding rule and a clearance gauge are used for checking; the verticality of the vertical surface with the height not more than 2000mm is 4mm, and the vertical surface is checked by a 2m vertical ruler; the squareness of the internal and external angles is 3mm, and the square is checked by a square ruler; the straightness of the sealant is 2mm, 5m of the line is pulled, and less than 5m of the line is pulled through, and the check is carried out by using a ruler.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. Gel non-combustible heat preservation decorative board outer wall external thermal insulation system, its characterized in that: the adhesive comprises a gel non-combustible heat-insulation decorative plate, adhesive mortar, an anchoring piece, a caulking material and sealant, and is arranged on the outer side of a base layer wall; the bonding layer is made of bonding mortar; the performance indexes of the external thermal insulation system of the gel thermal insulation decorative plate external wall comprise: weather resistance, no pulverization, bulging, bubbling and shedding phenomena in appearance, no crack with width larger than 0.10mm, and tensile bonding strength between the panel and the gel insulation board more than or equal to 0.10 MPa; the tensile bonding strength is more than or equal to 0.10MPa and the gel insulation board is damaged; impact resistance, first layer 10J, second and above 3J; the single-point anchoring force is more than or equal to 0.60kN, and the thermal resistance meets the design requirement.
2. The gel non-combustible heat insulation decorative plate external wall external heat insulation system according to claim 1, characterized in that: the base wall is one of reinforced concrete, a solid masonry, a perforated brick masonry, a hollow block masonry and autoclaved aerated concrete; the base wall is provided with a waterproof mortar leveling layer and meets the following requirements: the strength grade of the waterproof mortar leveling layer is required to meet the design requirement; the thickness of the waterproof mortar leveling layer is not less than 12mm, and preferably 20 mm; the base layer wall body is treated by adopting an interface agent.
3. The gel non-combustible heat insulation decorative plate external wall external heat insulation system according to claim 2, characterized in that: the gel non-combustible heat-insulation decorative plate comprises a gel non-combustible heat-insulation plate and a veneer, is a plate-shaped product prefabricated and formed in a factory, is one of a coating veneer layer and an A4 thin porcelain veneer, has heat insulation and decoration functions, is a light heat-insulation plate prepared by mixing and stirring in proportion, distributing, carrying out compression molding and carrying out thermal curing process, wherein vitrified micro-beads are used as main light aggregate, cement and gas-phase silica are used as cementing materials, and a proper amount of reinforcing fiber and functional additive are added; the allowable dimensional deviation and performance indicators should include: the length is +/-2.0, the width is +/-1.5, the thickness is +1.5, the diagonal difference is less than or equal to 3.0, and the flatness of the plate surface is less than or equal to 2.0.
4. The gel non-combustible heat insulation decorative plate external wall external heat insulation system according to claim 3, characterized in that: when the decorative board is a coating decorative board, the performance indexes of the gel heat-insulation decorative board comprise: mass per unit area less than 25kg/m2(ii) a The tensile bonding strength is more than or equal to 0.10MPa and the gel insulation board is damaged; bending resistance load not less than the dead weight of the plate; the water absorption capacity is less than or equal to 500g/m2(ii) a Water impermeability, 2h water impermeability; the performance indexes of the coating finish comprise: acid resistance, no abnormality in 48 h; alkali resistance, no abnormality in 96 h; salt spray resistance, no abnormality after 500 h; aging resistance, and is qualified after 1000 h; the adhesive force is less than or equal to grade 1; the performance indexes of the gel insulation board comprise: apparent density is less than or equal to 200kg/m3(ii) a The heat conductivity coefficient is less than or equal to 0.048W/(m.K), and the correction coefficient is 1.05; the compressive strength is more than or equal to 0.30 MPa; the tensile strength in the direction vertical to the plate surface is more than or equal to 0.10 MPa; the volume water absorption rate is less than or equal to 3.0 percent; the drying shrinkage value is less than or equal to 0.80 mm/m; the softening coefficient is more than or equal to 0.80; combustion performance class a.
5. The gel non-combustible heat insulation decorative plate external wall external heat insulation system according to claim 3, characterized in that: when the veneer is A4 thin porcelain veneer, the performance index of gel heat preservation decorative board includes: mass per unit area of 20 to 30kg/m2(ii) a The tensile bonding strength is more than or equal to 0.10MPa and the gel insulation board is damaged; bending resistance load not less than the dead weight of the plate; the water absorption capacity is less than or equal to 500g/m2(ii) a Water impermeability, 2h water impermeability; the thickness of the A4 thin porcelain panel is 3.8 mm-5.5 mm, and the physical and chemical properties thereof conform to the current national standard GB/T4100-(E is less than or equal to 0.5 percent of BI a type); the performance indexes of the gel insulation board comprise: an apparent density of 201 to 230kg/m3(ii) a The heat conductivity coefficient is less than or equal to 0.060W/(m.K), and the correction coefficient is 1.10; the compressive strength is more than or equal to 0.40 MPa; the tensile strength in the direction vertical to the plate surface is more than or equal to 0.10 MPa; the volume water absorption rate is less than or equal to 6.5 percent; the drying shrinkage value is less than or equal to 0.80 mm/m; the softening coefficient is more than or equal to 0.80; combustion performance class a.
6. The external thermal insulation system for the gel non-combustible thermal insulation decorative plate external wall according to claim 4 or 5, characterized in that: the area of a single block of the gel non-combustible heat-insulation decorative plate is not more than 1m2And the quality of the veneer is not suitable to be more than 30 kg.
7. The gel non-combustible heat insulation decorative plate external wall external heat insulation system according to claim 1, characterized in that: the bonding mortar is dry-mixed mortar containing ordinary portland cement, redispersible polymer rubber powder and medium sand, is prepared by quantitatively adding water when in use and is used for adhering the gel non-combustible heat-insulation decorative plate; the performance indexes of the bonding mortar comprise: the tensile bonding strength with the cement mortar block is more than or equal to 0.6MPa, the water resistance strength is 48 hours of soaking, 2 hours of drying and more than or equal to 0.4 MPa; soaking in water for 48h, and drying for 7d under pressure of not less than 0.6 MPa; the tensile bonding strength with the gel non-combustible insulation board is not less than 0.10MPa, the interface is damaged in the insulation board, the water resistance strength is 48 hours after soaking, the drying time is 2 hours, and the tensile bonding strength is not less than 0.08 MPa; soaking in water for 48h, and drying for 7d under the pressure of not less than 0.1 MPa; the operable time is 1.5-4.0 h; the thickness of the adhesive layer should not be less than 3 mm.
8. The external thermal insulation system for the gel non-combustible thermal insulation decorative plate external wall according to claim 4 or 5, characterized in that: the anchoring piece is a metal structural piece for connecting and fixing the gel non-combustible heat-insulation decorative plate and the base layer wall; comprises an anchoring pressing plate (a clamping piece) and an anchor bolt (comprising a metal screw and a plastic expansion pipe); the anchor assembly adopts sideboard anchor formula, and its performance index includes: the standard value of the tensile bearing capacity of a single anchor is more than or equal to 0.80kN of a concrete base layer and more than or equal to 0.60kN of a masonry base layer; the suspension force is more than or equal to 0.10 kN; the anchoring piece of the external thermal insulation system of the gel thermal insulation decorative plate external wall is arranged to meet the following requirements: in the heat preservationThe decorative plate is preferably fixed by adopting the edge, the fixed edge is not less than 2 parallel edges, and the number of the decorative plates fixed by the parallel anchoring parts is not less than 8/m2And each plate should not be less than 4; when each set of anchoring piece is used for fixing two heat-insulation decorative plates, a four-side fixing mode is not suitable; the effective anchoring depth of the anchor bolt extending into the base wall body meets the following requirements: the wall body of the reinforced concrete base layer is not less than 30 mm; the autoclaved aerated concrete base wall body is not less than 50 mm; other masonry base layer walls should not be less than 40 mm.
9. The gel non-combustible heat insulation decorative plate external wall external heat insulation system according to claim 1, characterized in that: furthermore, the gel non-combustible heat-insulation decorative plate external wall external heat-insulation system is also provided with an exhaust part and a drain pipe, wherein the exhaust part is arranged at the intersection of the horizontal seam and the vertical seam of the heat-insulation decorative plate, the included angle between the axis of the drain pipe and the wall surface is 60 degrees, the pipe orifice is downward, the bonding is firm, and the bonding is firm every 30m21 wall surface is arranged; 1 drain pipe should be installed at every 10m, and less than 10m 1 drain pipe should be installed at the scattered water and wall body department.
10. The construction method of the gel non-combustible heat-insulation decorative plate external wall external heat-insulation system is characterized by comprising the following steps:
A. the construction environment temperature is not lower than 5 ℃, the strong sun exposure is avoided in summer, and the construction cannot be carried out in windy weather, rain and snow days above 5 level;
B. the wall surface of the base wall body meets the following requirements: the wall surface should be dry (the water content should be less than 8 percent), clean and free of attachments which hinder bonding such as oil stains, release agents and the like; removing bulges, hollows and loose parts and leveling; the wall surface can not be subjected to the phenomena of dust explosion, pulverization, peeling and saltpetering; the bonding strength of the waterproof mortar leveling layer of the wall surface meets the requirements of relevant standards, and the flatness and the verticality of the wall surface meet the regulations; the wall surface tolerance deviation is 4mm, the surface flatness is 4mm, and the inspection method uses a 2m guiding rule and a clearance gauge for inspection; the verticality of the vertical surface is 4mm, and the inspection method uses a 2m vertical detection ruler for inspection; the squareness of the internal and external corners is 3mm, and the inspection method uses a square ruler and a clearance gauge for inspection;
C. the elastic line before the gel heat-insulation decorative plate is pasted and constructed meets the following requirements: when the bullet lines are separated, the vertical and horizontal reference lines are popped; ejecting an installation control line of the heat-insulation decorative plate according to a design plate arrangement drawing and a construction scheme, wherein the width of a plate seam is 3-5 mm;
D. the pasting construction of the gel heat-preservation decorative plate meets the following requirements: and (3) removing dust from the pasted plate surface before pasting. (ii) a Before pasting, fixing a bracket at the position above a water dispersion slope; the heat-insulating decorative plate is adhered by a strip adhering method or a point frame adhering method, and the adhering area meets the design requirement; when a point frame bonding method is adopted, air exhaust pieces and water discharge pipes are required to be arranged, the number of the air exhaust pieces is required to meet the design requirement, 1 water discharge pipe is arranged at every 10m of the positions of water distribution and the wall body, and 1 water discharge pipe is arranged at the position less than 10 m; the adhered heat-insulating decorative plate is adhered along the horizontal direction from bottom to top; the upper and lower plate seams can adopt a through seam method and can also adopt a staggered seam method; the side surface of the heat-insulating decorative plate is not coated or stained with bonding mortar, the heat-insulating decorative plate is uniformly kneaded and compacted with the wall surface when being pasted, and a rubber hammer is used for tapping the plate surface, so that the height difference between the plates is not more than 1.5 mm; removing the extruded adhesive mortar in time when a heat-insulating decorative plate is stuck;
E. when the sticking height of the heat-insulation decorative plate is less than 50m, the sticking area of the bonding layer is not less than 50% of the area of the heat-insulation decorative plate, and when the sticking height is 50 m-80 m, the sticking area is not less than 60% of the area of the heat-insulation decorative plate; the heat-insulating decorative boards at the following parts are preferably fully adhered: pasting a wall surface with the height of more than 80m, a wall surface within 2m from the outdoor terrace, an external corner of the external wall of 300mm, the peripheral part of a hole at the outer side of a door and a window, a convex window bottom plate, a single plate with the length or width of not more than 300mm, the top of a parapet wall or a wall surface within 300mm below an eave.
F. The anchor installation should meet the following requirements: an anchoring part is arranged in time after each heat-insulating decorative plate is pasted; the anchoring piece is basically assembled before installation, a certain adjustment allowance is reserved for the positioning screw before installation, and the positioning screw is screwed after the positioning screw is installed and adjusted in place; drilling a hole by using a drill bit with a proper diameter, wherein the drilling depth is greater than the length of the anchor rod; the anchoring piece is tightly attached to the heat-insulation decorative plate; when the bearing piece is arranged, the bearing piece is firstly installed, and then the heat-insulation decorative plate is installed, wherein the distance between the bearing piece or the anchoring points of the bearing piece is not more than 600 mm;
G. filling caulking materials for construction;
H. processing the board surface;
I. the mounting allowable deviation and inspection method of the gel heat-insulation decorative plate comprises the following steps: the surface flatness is 4mm, and a 2m guiding rule and a clearance gauge are used for checking; the verticality of the vertical surface with the height not more than 2000mm is 4mm, and the vertical surface is checked by a 2m vertical ruler; the squareness of the internal and external angles is 3mm, and the square is checked by a square ruler; the straightness of the sealant is 2mm, 5m of the line is pulled, and less than 5m of the line is pulled through, and the check is carried out by using a ruler.
CN201911388821.6A 2019-12-30 2019-12-30 Gel non-combustible heat-insulation decorative plate external wall external heat-insulation system and construction method Pending CN111042362A (en)

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