CN110778062A - Facing paving structure of floor heating area and construction method thereof - Google Patents

Facing paving structure of floor heating area and construction method thereof Download PDF

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Publication number
CN110778062A
CN110778062A CN201911255798.3A CN201911255798A CN110778062A CN 110778062 A CN110778062 A CN 110778062A CN 201911255798 A CN201911255798 A CN 201911255798A CN 110778062 A CN110778062 A CN 110778062A
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CN
China
Prior art keywords
layer
paving
construction
waterproof
floor heating
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CN201911255798.3A
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Chinese (zh)
Inventor
冯黎喆
耿玉晓
陈云
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Suzhou Gold Mantis Construction Decoration Co Ltd
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Suzhou Gold Mantis Construction Decoration Co Ltd
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Priority to CN201911255798.3A priority Critical patent/CN110778062A/en
Publication of CN110778062A publication Critical patent/CN110778062A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/02Flooring or floor layers composed of a number of similar elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/18Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/181Insulating layers integrally formed with the flooring or the flooring elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00Hot-water central heating systems
    • F24D3/12Tube and panel arrangements for ceiling, wall, or underfloor heating
    • F24D3/14Tube and panel arrangements for ceiling, wall, or underfloor heating incorporated in a ceiling, wall or floor

Abstract

The invention discloses a facing paving structure of a floor heating area, which comprises: the structure base layer is provided with a moisture-proof layer, a heat insulation layer, a reflecting film, a first metal mesh, a heating pipe, a second metal mesh, a filling layer, a cement mortar leveling layer, an adhesive layer and a decorative layer from inside to outside in sequence; the paving and pasting process provided by the invention is convenient and fast to construct, high in stability and long in service life, and can meet the requirements of decoration and use functions, and particularly the facing paving and pasting structure of the floor heating area and the construction method thereof fundamentally avoid common quality phenomena such as hollowing, cracking, leakage and the like easily generated by the paving and pasting process of the facing layer of the traditional floor heating area, ensure the engineering quality, reduce the loss caused by reworking, improve the labor efficiency and reduce the material loss.

Description

Facing paving structure of floor heating area and construction method thereof
Technical Field
The invention relates to the technical field of building decoration construction, in particular to a facing paving structure of a floor heating area and a construction method thereof.
Background
In recent years, with the change of energy structures in China, the requirements of people on indoor thermal environment are continuously improved, and the energy conservation, environmental protection and comfort of a heating mode become a basic orientation of the development of modern heating technology. Low temperature hot water ground radiation heating systems are receiving increasing attention due to their characteristics of comfort, safety, environmental protection, energy saving, etc.
However, in the practical application process, because the control is not in place in the aspects of material quality, material proportion, construction process, maintenance and the like, the floor heating paving and pasting system is easy to have common quality problems of hollowing, cracking, falling, leakage and the like in the construction and use processes, and the decoration and use functions of the floor heating paving and pasting system are seriously influenced. Among these, the reasons for common quality problems are as follows:
1) the stone has poor heat stress resistance and low breaking strength: temperature gradient exists in the floor heating system, so that temperature stress exists in the stone, and when the stress is greater than the strength of the stone, hollowing and cracking phenomena occur in the stone.
2) The leveling layer and the filling layer are deformed by heating and can not be released: in the floor heating process, the leveling layer and the filling layer are heated and expanded, and when enough contraction joints are not reserved, the stones are mutually extruded or the base layer is cracked to cause cracking.
3) The filling layer has insufficient strength: the strength of the filling layer can not offset the thermal stress and load, so that the filling layer cracks, and the stone materials are subjected to hollowing and cracking.
4) The arrangement of the ground heating pipes does not meet the requirement: the arrangement space of the floor heating pipes is not in accordance with the requirement or is not uniform, so that the heat distribution is not uniform, and the stone is heated unevenly to cause hollowing and cracking.
5) The waterproof material is not properly selected: the used waterproof material does not resist high temperature, so that the waterproof layer cracks, and the water leakage phenomenon is caused.
In order to solve the problems, a paving and pasting process which is convenient to construct, high in stability and long in service life and can meet the requirements of decoration and use functions is urgently needed, particularly a facing paving and pasting structure of a ground heating area and a construction method thereof, the common quality phenomena of hollowing, cracking, leakage and the like easily generated in the paving and pasting process of a facing layer of the traditional ground heating area are fundamentally avoided, the engineering quality is ensured, the loss caused by reworking is reduced, the labor efficiency is improved, and the material loss is reduced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a paving and pasting process which is convenient to construct, high in stability and long in service life and can meet the requirements of decoration and use functions, in particular to a facing paving and pasting structure of a floor heating area and a construction method thereof, so that the common quality phenomena of hollowing, cracking, leakage and the like easily generated by the paving and pasting process of a facing layer of the traditional floor heating area are fundamentally avoided, the engineering quality is ensured, the loss caused by rework is reduced, the labor efficiency is improved, and the material loss is reduced.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a structure is spread to veneer in ground heating area, includes: the structure basic unit is equipped with dampproof course, heat insulation layer, reflectance coating, first metal mesh, heating pipe, second metal mesh, filling layer, cement mortar screed-coat, tie coat and finish coat from inside to outside in proper order on the structure basic unit.
The paving and pasting process provided by the invention is convenient and fast to construct, high in stability and long in service life, and can meet the requirements of decoration and use functions, and particularly the facing paving and pasting structure of the floor heating area and the construction method thereof fundamentally avoid common quality phenomena such as hollowing, cracking, leakage and the like easily generated by the paving and pasting process of the facing layer of the traditional floor heating area, ensure the engineering quality, reduce the loss caused by reworking, improve the labor efficiency and reduce the material loss.
On the basis of the technical scheme, the following improvements can be made:
preferably, the veneer layers are formed by connecting veneer boards, plate seams are arranged between the veneer boards, and the calculation formula of the plate seams is as follows:
L=4×£×(T1-T2)×Lmax;
l: the plate gap size,. quadrature.,. q: coefficient of thermal expansion, T1: annual maximum air temperature of a construction area, T2: ambient temperature of construction area, Lmax: the maximum length of the veneer.
Preferably, the filling layer is provided with an expansion joint, the facing layer is provided with an expansion joint, and the expansion joint on the filling layer is communicated with the expansion joint on the facing layer.
Preferably, the finishing layer is covered with a permeable protective agent layer.
Preferably, the method comprises the following steps: a waterproof layer, the waterproof layer comprising: the waterproof layer comprises a first waterproof layer and a second waterproof layer, wherein the first waterproof layer is arranged on the surface of the structural base layer, and the second waterproof layer is arranged on the surface of the filling layer.
Preferably, the second waterproof layer is turned up along the wall and is lapped with the first waterproof layer.
Preferably, the method comprises the following steps: the waterproof coating comprises a concave-convex corner, and a first waterproof coating layer, reinforcing cloth and at least one layer of second waterproof coating layer are sequentially arranged on the concave-convex corner.
Preferably, the method comprises the following steps: the water stopping ridge, the heating pipe passes the outside of water stopping ridge is equipped with flexible sleeve, flexible sleeve with it is closely knit to inlay the packing through any one in sealed glue of polyurethane or the single component polyurethane waterproof coating between the heating pipe.
Preferably, the plate seam groove is densely filled by flexible sealant.
Preferably, the expansion joint is embedded and compacted through any one of silane modified sealant or finished expansion joint strips.
As a preferred scheme, the construction method of the facing paving structure of the floor heating area comprises the following construction steps:
s1 floor heating layer construction, the floor heating construction comprises the following construction steps: s101, treating a structural base layer, S102 paving a moisture-proof layer, S103 paving a heat-insulating layer, S104 paving a reflecting film, S105 paving a metal mesh, S106 paving a heating pipe, and S107 constructing a filling layer;
s2 waterproof layer construction, wherein the waterproof layer construction comprises the following construction steps: s201, waterproof layer construction is carried out on a wading area, a first waterproof layer is arranged on the surface of a structural base layer, a second waterproof layer is arranged on the surface of a filling layer, and S202 the second waterproof layer is turned upwards along a wall and is lapped with the first waterproof layer; s203, uniformly brushing waterproof paint on the internal and external corners, sticking reinforcing cloth for reinforcing treatment, and brushing 1-2 layers of waterproof paint on the surface; s204, a heating pipe penetrates through the water stopping ridge, a flexible sleeve needs to be embedded in the outer side of the heating pipe penetrating through the water stopping ridge, and polyurethane sealant or single-component polyurethane waterproof paint is adopted between the flexible sleeve and the heating pipe for embedding and filling tightly; s205, after the waterproof layer construction is finished, cement mortar leveling construction is carried out;
s3 paving the veneer layer, wherein the paving of the veneer layer comprises the following paving steps: s301, veneer protection, S302 adhesive preparation, S303 wet area veneer paving, S304 dry area veneer paving, S305 board seam processing, and S306 expansion joint processing.
As the preferred scheme, the dampproof course is laid and is adopted 2 ~ 3mm thick IXPE, XPE film or plastic film overlap joint setting, and the overlap joint width is 100 ~ 150 mm.
As preferred scheme, the heat insulation layer is laid and is adopted 10 ~ 20mm thick XPS extruded polystyrene foam plastic board to connect through the overlap joint mode, and the overlap joint width is 20 ~ 25 mm.
As a preferable scheme, the first waterproof layer is made of 1.5-2.0 mm thick single-component polyurethane waterproof paint, and the second waterproof layer is made of 1.5-2.0 mm thick polymer cement waterproof paint.
Drawings
Fig. 1 is a structural diagram of a facing paving structure of a floor heating area according to an embodiment of the present invention;
wherein: 1. the structure comprises a structure base layer, 2, a damp-proof layer, 3, a heat insulation layer, 4, a reflection film, 5, a first metal mesh, 6, a heating pipe, 7, a second metal mesh, 8, a filling layer, 9, a cement mortar leveling layer, 10, an adhesive layer, 11, a decorative layer, 12, a board seam and 13, an expansion joint.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. 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.
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In order to achieve the object of the present invention, as shown in fig. 1, a facing paving structure of a floor heating area in this embodiment includes: the structure basic unit 1 is equipped with dampproof course 2, heat insulation layer 3, reflectance coating 4, first metal mesh 5, heating pipe 6, second metal mesh 7, filling layer 8, cement mortar screed-coat 9, tie coat 10 and finish coat 11 from inside to outside in proper order on structure basic unit 1.
The paving and pasting process provided by the invention is convenient and fast to construct, high in stability and long in service life, and can meet the requirements of decoration and use functions, and particularly the facing paving and pasting structure of the floor heating area and the construction method thereof fundamentally avoid common quality phenomena such as hollowing, cracking, leakage and the like easily generated by the paving and pasting process of the facing layer of the traditional floor heating area, ensure the engineering quality, reduce the loss caused by reworking, improve the labor efficiency and reduce the material loss.
In some embodiments, the veneer layers 11 are formed by connecting veneer sheets, a sheet seam 12 is arranged between the veneer sheets, and the calculation formula of the sheet seam 12 is as follows:
L=4×£×(T1-T2)×Lmax;
l: the plate gap size,. quadrature.,. q: coefficient of thermal expansion, T1: annual maximum air temperature of a construction area, T2: ambient temperature of construction area, Lmax: the maximum length of the veneer.
By adopting the embodiment, the factors such as the thermal expansion coefficient, the compression ratio, the size of the stone material, the change range of the floor heating temperature and the like are fully considered, and the plate seams 12 are arranged between the veneer sheets of the veneer layer 11.
In some embodiments, the filling layer 8 is provided with an expansion joint 13, the facing layer 11 is provided with an expansion joint 13, and the expansion joint 13 on the filling layer is communicated with the expansion joint 13 on the facing layer.
By adopting the embodiment, the expansion joint is embedded and tightly filled by using the silane modified sealant or the finished product expansion joint strip.
In some embodiments, the facing layer 11 is covered with a permeable protectant layer (not shown).
Adopt above-mentioned embodiment, use the infiltration type protective agent to carry out six protection to the decorative board on finish coat and handle, brush with paint decorative board corner and side earlier when brushing with paint, then brush with paint the decorative board openly, brush with paint the decorative board bottom surface at last, the decorative board protection is through using the infiltration type protective agent to carry out six protection to the decorative board and is handled, brushes mode and infiltration degree of depth index through the regulation, ensures decorative board protection quality, avoids pathological change phenomena such as alkali-returning, yellowing, water spot to appear in the decorative board. Meanwhile, the bottom surface protective agent or cement-based stone back adhesive is additionally brushed on the bottom surface of the veneer layer, so that the bonding strength of the veneer layer is improved by 333-367 percent, and the phenomena of hollowing and falling off of the veneer layer are effectively avoided
In some embodiments, the method comprises: a waterproof layer (not shown), the waterproof layer (not shown) comprising: a first waterproof layer (not shown) disposed on the surface of the structural substrate 1, and a second waterproof layer (not shown) disposed on the surface of the filling layer 8.
By adopting the embodiment, the waterproof layer has the advantages of simple structure and convenience in operation, and the leakage phenomenon caused by local cracking of the waterproof layer is effectively avoided.
In some embodiments, the second waterproof layer (not shown) is turned up along the wall and overlaps the first waterproof layer (not shown).
By adopting the embodiment, the waterproof layer has the advantages of simple structure and convenience in operation, and the leakage phenomenon caused by local cracking of the waterproof layer is effectively avoided.
In some embodiments, a construction method of a veneer overlaying structure of a floor heating area comprises the following construction steps:
s1 floor heating layer construction, the floor heating construction comprises the following construction steps: s101, treating a structural base layer 1, S102, paving a moisture-proof layer 2, S103, paving a heat-insulating layer 3, S104, paving a reflecting film 4, S105, paving metal nets (5 and 7), S106, paving a heating pipe 6, and S107, constructing a filling layer 8;
s2 waterproof layer construction, wherein the waterproof layer construction comprises the following construction steps: s201, waterproof layer construction is carried out on a wading area, a first waterproof layer is arranged on the surface of the structural base layer 1, a second waterproof layer is arranged on the surface of the filling layer 8, and S202 the second waterproof layer is turned upwards along a wall and is lapped with the first waterproof layer; s203, uniformly brushing waterproof paint on the internal and external corners, sticking reinforcing cloth for reinforcing treatment, and brushing 1-2 layers of waterproof paint on the surface; s204, a heating pipe 6 penetrates through the water stopping ridge, a flexible sleeve needs to be embedded outside the heating pipe 6 penetrating through the water stopping ridge, and polyurethane sealant or single-component polyurethane waterproof paint is adopted between the flexible sleeve and the heating pipe 6 for tight embedding and filling; s205, after the waterproof layer construction is finished, cement mortar leveling construction is carried out;
s3 paving the veneer layer 11, wherein the paving of the veneer layer comprises the following paving steps: s301, veneer protection, S302 adhesive preparation, S303 wet area veneer paving, S304 dry area veneer paving, S305 board seam processing, and S306 expansion joint processing.
By adopting the embodiment, the paving and pasting process is convenient and fast to construct, high in stability and long in service life, and can meet the requirements of decoration and use functions, and particularly the paving and pasting structure and the paving and pasting method of the decorative layer in the ground heating area comprise the steps of structure base layer treatment, moisture-proof layer paving, thermal insulation layer paving, reflective film paving, metal mesh paving, heating pipe paving, filling layer construction, waterproof layer construction, decorative layer construction and the like. The invention fundamentally avoids the common quality phenomena of hollowing, cracking, leakage and the like easily generated by the traditional floor heating area veneer layer paving process, ensures the engineering quality, reduces the loss caused by reworking, improves the labor efficiency and reduces the material loss.
The reinforcing cloth is preferably glass fiber cloth or non-woven cloth.
In some embodiments, the moisture-proof layer 2 is laid by adopting an IXPE (electron radiation cross-linked polyethylene foam material), an XPE (chemical cross-linked polyethylene foam material) film or a plastic film with the thickness of 2-3 mm in an overlapping mode, and the overlapping width is 100-150 mm.
Adopt above-mentioned embodiment, through adopting 2 ~ 3mm thick IXPE or XPE film, carry out dampproofing to direct and soil contact or the ground that has humid gas invasion such as ramming soil layer ground, basement ground.
In some embodiments, the thermal insulation layer 3 is laid by using an XPS (extruded polystyrene foam) board with the thickness of 10-20 mm to be connected in a lap joint mode, and the lap joint width is 20-25 mm.
By adopting the embodiment, the floor heating layer is subjected to heat insulation and preservation treatment by paving the XPS extruded polystyrene foam plastic plate with the thickness of 10-20 mm and the aluminum foil reflecting film with the thickness of 0.04-0.08 mm.
In some embodiments, the first waterproof layer is made of 1.5-2.0 mm thick single-component polyurethane waterproof paint, and the second waterproof layer is made of 1.5-2.0 mm thick polymer cement waterproof paint.
By adopting the embodiment, the leakage phenomenon caused by the local cracking of the waterproof layer is effectively avoided.
A facing paving method for a floor heating area comprises the following paving steps:
floor heating layer construction
(1) Structural substrate 1 treatment
1) The ground of the base layer is clean and dry, has no impurities, and the root of the corner connecting surface is flat and has no dust deposition.
2) And when the base layer has a cracking phenomenon and the crack width is less than or equal to 2mm, surface sealing treatment is adopted. When the width of the crack is more than 2mm, caulking and plugging mortar is adopted for treatment after a V-shaped groove is formed. When the crack is through and developed, epoxy resin or polyurethane resin is adopted for grouting treatment.
3) When the base layer has a sand-out phenomenon, sealing curing materials such as a ground curing agent (multifunctional sealing hardening base coat, a preparation method and application 201810460260.5 thereof) and the like can be adopted for reinforcement treatment. The construction can adopt various modes such as rolling coating, brush coating or spray coating, and the like, the coating is applied for 1-2 times, and the ground-curing treatment agent is preferably a multifunctional seal hardening base coat or other ground-curing treatment agents. .
(2) Laying of the moisture-proof layer 2
1) The rammed earth layer ground, basement ground and other grounds directly contacted with soil or with wet gas invasion, and a moisture-proof layer is laid before the heat-insulating layer is laid.
2) Dampproof course 2 adopts 2 ~ 3mm thick IXPE or XPE film, and the plastic film overlap joint sets up, and the overlap joint width is 100 ~ 150 mm. The adhesive tapes are used for bonding between the ground and the wall surface and between the lap joints to be smooth and firm.
(3) The heat insulating layer 3 is laid
1) The material of the heat insulating layer 3 is an XPS extruded polystyrene foam plastic plate with the thickness of 10-20 mm and the densityNot less than 20kg/m 3The compression strength is not less than 200kPa, and the thermal conductivity is not less than 0.035W/(m.K).
2) The heat insulating layer is connected in an overlapping mode, the overlapping width is 20-25 mm, the heat insulating layer is laid smoothly, tightly and fully, the joint is bonded smoothly through a plastic adhesive tape, and the bonding width is 100-150 mm.
3) The side heat-insulating layer is arranged on the upper edge of the radiation surface heat-insulating layer to fill the upper edge of the layer, a reliable fixing measure is adopted at the joint part, and the side heat-insulating layer is tightly connected with the radiation surface heat-insulating layer.
(4) Laying of reflective film
1) A layer of aluminum foil reflecting film with the thickness of 0.04-0.08 mm is laid on the heat insulating layer, the lapping width between the reflecting films is 100-150 mm, and the aluminum foil reflecting film is firmly bonded by using a transparent adhesive tape to prevent the aluminum foil reflecting film from shifting in the construction process.
2) The reflective film should be laid flat without wrinkles. The heating pipe is fixed on the plastic staple penetrating through the heat insulating layer, and no other damage is caused.
(5) Laying of metal nets
1) When the heating pipe adopts the plastics ribbon fixed, can be 80 ~ 100mm with the net, the diameter is fixed for 1 ~ 2 mm's first metal mesh, and the fixed interval is 200 ~ 300 mm. Meanwhile, the first metal net can increase the bonding strength between the filling layer and the lower layer structure.
2) The metal net is paved flatly, the lap joint width at the joint is 100-150 mm, and the binding is firm by using steel wires.
3) When the heating pipe is directly fixed with the reflecting film by adopting a plastic staple, the layer of metal net is not paved.
(6) Laying of heating pipe
1) The heating pipe is 50 ~ 100mm apart from outer wall internal surface, is 200 ~ 300mm apart from the interior wall, is 100 ~ 150mm apart from bathroom wall surface, and the installation error of heating pipe laying interval is not more than 10 mm. The distance between the fixed points of the heating pipes is 500-700 mm, the distance between the fixed points of the straight pipe sections is 200-300 mm, and the bending radius of the heating pipes is 8-11 times of the outer diameter of the pipeline.
2) If the heating pipe meets the expansion joint when being laid, a flexible sleeve is arranged outside the heating pipe.
3) In order to prevent the filling layer from cracking, a second metal net with a grid of 80mm × 80mm (or 90mm × 90mm or 100mm × 100mm) and a diameter of 1-2 mm needs to be laid on the heating pipe.
(7) Construction of filling layer
1) The filling layer is made of pea stone concrete, the strength grade is C15, the particle size of the pea stone is 5-12 mm, and the filling thickness is not less than 50 mm.
2) The area of the floor heating area exceeds 36m 2Or when the direction of the long edge (width) exceeds 6m, the filling layer is provided with an expansion joint with the width of 5-8 mm. The expansion joint is made of EPS high foaming polyethylene foam plastic plate or a preset isolation plate, the expansion joint is taken out after the filling layer is constructed, and silane modified sealant is filled in the expansion joint.
2 construction of waterproof layer
(1) Waterproof layer construction is required in wading areas such as toilets and the like. The first waterproof layer is arranged on the surface of the structural base layer, and 1.5-2.0 mm thick single-component polyurethane waterproof paint is adopted. The second waterproof layer is arranged on the surface of the filling layer and adopts 1.5-2.0 mm thick polymer cement waterproof coating (type II).
(2) The second waterproof layer is required to be turned upwards along the wall and is lapped with the first waterproof layer by no less than 200 mm. The height of the waterproof layer of the upturning wall surface is 300mm above the finished surface of the ground in the wet area and the dry area.
(3) Coating the parts which are easy to leak at the details such as the internal and external corners by a spray gun, a brush or a roller uniformly for one time, wherein the coating width is preferably 300-500 mm, and glass fiber cloth or non-woven fabric is immediately pasted for reinforcement treatment, and the width is not less than 300 mm. When the waterproof coating is pasted, a paint brush is used for spreading and flattening, the waterproof coating is tightly attached to the lower layer of coating, the lapping width of the glass fiber cloth or the non-woven fabric is not less than 100mm, and 1-2 layers of waterproof coating are coated on the surface of the glass fiber cloth or the non-woven fabric to enable the thickness of the waterproof coating to reach the design requirement.
(4) Isolation measures need to be taken when the heating pipe penetrates through the water stop bank, a plastic sleeve needs to be embedded on the outer side of the heating pipe penetrating through the water stop bank, and polyurethane sealant or single-component polyurethane waterproof paint is adopted between the sleeve and the heating pipe to be embedded and filled compactly.
(5) After the waterproof layer construction is completed, when the water storage test is qualified, the cement mortar protective layer construction with the thickness of 20-30 mm and the ratio of 1: 3 is carried out on the surface of the waterproof layer, and the waterproof layer cannot be damaged during the protective layer construction.
3 facing layer paving
(1) Stone protection
1) And (3) carrying out six-side protection treatment on the stone by using a permeable protective agent, brushing edges and sides of the stone, brushing the front side of the stone, and brushing the bottom surface of the stone. The average depth of penetration of the stone protective agent into the stone is shown in table 1.
TABLE 1 average depth (mm) of penetration type stone protectant into stone
Variety of stone Granite Marble Sandstone Limestone Slate
Depth of penetration ≥2.5 ≥1.5 ≥5.0 ≥1.5 ≥1.5
2) Residual redundant protective agent on the surface of the stone is removed in time, and the stone coated with the protective agent is completely dried or at least aired for 24-48 hours, so that the sunshine exposure is avoided.
3) In order to ensure the bonding strength of the stone and the bonding layer, a bottom surface protective agent or cement-based stone gum needs to be supplemented on the bottom surface, so that the stone is prevented from being pasted and hollowed in the later period. The effect of the bottom surface protectant and the cement-based gum on the tensile bond strength of the stone is shown in table 2.
TABLE 2 influence of bottom surface protectant, Cement-based gum, on tensile bond Strength of Stone (MPa)
(2) Adhesive arrangement
1) Stirring the enhanced binder (the bonding reinforcing agent, the preparation method thereof, the binder and the construction method 201710672990.7 thereof) for 3-5 min by using a stirrer, standing and curing for 5-10 min, and slightly stirring for 1-2 min for use.
2) The stirred adhesive is used up within 60-120 min, and if the surface skin is filmed or dried, water or other solvents are not added and then stirring is continued for use.
(3) Wet region stone paving (thin layer paving method)
1) The strength of the base layer is not less than 1.2MPa, the water content of the base layer is not higher than 9%, and the surface flatness error of the base layer is not more than 3 mm.
2) Uniformly scraping and coating the binder on the surfaces of the stone and the base layer by using a tooth-shaped scraper, pressing the stone to the base layer, adjusting the level, straightening and compacting, and vibrating and compacting the binder by using a flat spreader to ensure that the full-size rate of the binder layer is 100 percent. The thickness of the adhesive layer is controlled to be 5-10 mm, preferably 6-8 mm, and the influence of the thickness of the adhesive layer on the tensile bonding strength of the stone is shown in Table 3.
TABLE 3 influence of the thickness of the bonding layer by thin layer coating method on the tensile bonding strength of the stone (MPa)
(4) Dry region stone paving paste (semi-dry mortar method)
1) The strength of the base layer is not less than 1.2MPa, and the water content of the base layer is not higher than 9%. And (3) paving a layer of semi-dry cement mortar with the thickness of 3-5 cm on the surface of the base layer, and leveling and compacting by using a cement leveler.
2) Uniformly scraping and coating the slurry on the bonding surface of the stone by using a tooth-shaped scraper, pressing the stone to the surface of the semi-dry mortar, adjusting the level, straightening and compacting, and vibrating and compacting the binder by using a flat-laying device, wherein the full-slurry rate of the binder layer is 100%. The thickness of the adhesive layer is controlled to be 5-10 mm, preferably 8-10 mm, and the influence of the thickness of the adhesive layer on the tensile bonding strength of the stone is shown in Table 4.
TABLE 4 influence of thickness of semi-dry mortar process bonding layer on tensile bond strength of stone
(5) Plate seam processing
1) Plate seam setting
The ground heating stone paving and sticking seam should meet the design requirement, the factors such as the thermal expansion coefficient, the compression ratio, the size of the stone and the change range of the ground heating temperature are fully considered, and the calculation formula of the plate seam is as follows:
L=4×£×(T1-T2)×Lmax
l: size of plate gap
H: coefficient of thermal expansion
T1: annual maximum air temperature of construction area
T2: ambient temperature of construction area
Lmax: maximum length of stone
Example 1: according to the calculation formula of the size of the open joint, the thermal expansion coefficient is 6 multiplied by 10 by testing that the annual lowest temperature of the construction area is-10 ℃, the annual highest temperature of the construction area is 40 ℃, the stone variety is Ortmann beige marble and the length is 800mm multiplied by 800mm -6. By calculation, the size L of the ultraman stone slab joint is 4 multiplied by 6 multiplied by 10-6 multiplied by 40- (-10)]The x 800 is 0.96mm, so the stone needs to be paved with at least 1mm plate seams.
Example 2: according to the formula for calculating the size of the open joint, assuming that the annual minimum temperature of the construction area is-15 ℃, the annual maximum temperature of the construction area is 40 ℃, the stone is Spanish beige marble, the length is 1200mm multiplied by 600mm, and the measurement is carried outThe coefficient of thermal expansion was found to be 6.5X 10 -6. By calculation, the size L of the ultraman stone slab joint is 4 multiplied by 6.5 multiplied by 10-6 multiplied by 40- (-15)]The x 1200 is 1.72mm, so the stone needs to be paved by leaving at least 2mm slab joints.
2) Gap filling treatment
① the time for filling joint should be prolonged as much as possible after paving the stone to ensure the moisture in the adhesive layer to be fully volatilized and reduce the humidity stress and the damage of the moisture to the stone.
② the surface and the joint of the stone are cleaned before joint filling, the joint filling depth is not less than 2mm, preferably 3-5 mm, the joint filling material is slightly higher than the surface of the stone by 0.5-1 mm after joint filling, and the joint filling material in the joint is continuous, straight, smooth, and has no crack or hollow drum.
(6) Expansion joint treatment
1) Expansion joint arrangement
① when stone is continuously spread on large area, the area exceeds 36m 2Or when the length (width) direction of the long edge exceeds 6m, an expansion joint of 5-8 mm is reserved and communicated with the corresponding expansion joint of the filling layer.
② an expansion joint of 8-10 mm is left at the joint of the stone and the vertical members such as wall and column, and is covered by a skirting line.
2) Gap filling treatment
The expansion joint is embedded and tightly filled with silane modified sealant or finished expansion joint strips.
The invention relates to a facing paving structure of a floor heating area and a construction method thereof, wherein the facing paving structure comprises the following steps: the finish coat, the finish coat passes through the decorative board and connects the constitution, the decorative board includes: common facing materials such as stone, artificial stone, facing brick, ceramic sheet, prefabricated terrazzo, microlite and the like or other facing materials.
The invention provides a facing paving structure of a floor heating area and a construction method thereof, and the facing paving structure has the following beneficial effects:
1) the invention discloses a paving and pasting process which is convenient and fast to construct, high in stability and long in service life and can meet the requirements of decoration and use functions, in particular to a paving and pasting structure of a decorative layer in a ground heating area and a paving and pasting method of the paving and pasting structure. The invention fundamentally avoids the common quality phenomena of hollowing, cracking, leakage and the like easily generated by the traditional floor heating area veneer layer paving process, ensures the engineering quality, reduces the loss caused by reworking, improves the labor efficiency and reduces the material loss.
2) The floor heating layer construction of the invention treats the cracking phenomenon of the base layer through surface sealing treatment, slotting and caulking treatment or grouting treatment, and treats the sanding phenomenon of the base layer through sealing and solidifying materials. Through adopting 2 ~ 3mm thick IXPE or XPE film, carry out dampproofing processing to direct and soil contact or the ground that has humid gas invasion such as ramming soil layer ground, basement ground. The floor heating layer is subjected to heat insulation and preservation treatment by paving a 10-20 mm thick XPS extruded polystyrene foam plastic plate and a 0.04-0.08 mm thick aluminum foil reflection film. Lay installation interval, fixed mode setting through the heating pipe to and adopt the diameter to be 1 ~ 2mm, the net is 80 ~ 100 mm's metal mesh to consolidate the pea gravel concrete filling layer, effectively avoided floor heating layer hollowing, fracture phenomenon.
3) According to the waterproof layer construction method, aiming at wading areas such as a toilet and the like, a single-component polyurethane waterproof layer with the thickness of 1.5-2.0 mm is respectively arranged on the surface of a structural base layer, a polymer cement waterproof coating (type II) with the thickness of 1.5-2.0 mm is arranged on the surface of a filling layer, and the lap joint width of a wall surface is not less than 200 mm. Meanwhile, 300mm wide glass fiber cloth or non-woven fabric is pasted at the parts which are easy to leak, such as the internal corner and the external corner, so as to carry out additional waterproof treatment, and the leakage phenomenon caused by local cracking of the waterproof layer is effectively avoided.
3) The veneer protection of the invention uses the permeable protective agent to carry out six-sided protection treatment on the veneer, ensures the protection quality of the veneer by specifying the brushing mode and the penetration depth index, and avoids the occurrence of pathological changes such as alkali return, yellowing, water spot and the like on the veneer. Meanwhile, the bottom surface protective agent or cement-based stone back adhesive is additionally brushed on the bottom surface of the facing layer, so that the bonding strength of the facing layer is improved by 333-367 percent, and the phenomena of hollowing and falling off of the facing layer are effectively avoided.
4) The facing layer is paved and pasted in a wet area and a dry area respectively by adopting a thin layer paving method and a semi-dry mortar method, a tooth-shaped scraper blade is used for uniformly scraping and coating an enhanced adhesive on the bonding surface of the facing layer and a base layer, and a spreader is used for thoroughly removing air in the adhesive layer, so that the full paste rate of the adhesive layer reaches 100 percent. In addition, the proper thickness of the adhesive layer is selected through testing, so that the adhesive strength is improved by 180 percent, and the phenomena of hollowing and falling off of the decorative layer are effectively avoided.
5) According to the invention, through the accurate arrangement and flexible joint filling of the plate joints and the expansion joints, the phenomena of hollowing, cracking, deformation and the like of the facing layer caused by stress accumulation after the large-area facing layer in the ground heating area is paved are avoided.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the inventive concept of the present invention, which falls into the protection scope of the present invention.

Claims (10)

1. The utility model provides a structure is spread to veneer in ground heating area which characterized in that includes: the structure basic unit is equipped with dampproof course, heat insulation layer, reflectance coating, first metal mesh, heating pipe, second metal mesh, filling layer, cement mortar screed-coat, tie coat and finish coat from inside to outside in proper order on the structure basic unit.
2. The structure of paving facing of floor heating area of claim 1, wherein the facing layers are connected by facing boards, and a board seam is arranged between the facing boards, and the board seam calculation formula is as follows:
L=4×£×(T1-T2)×Lmax;
l: the plate gap size,. quadrature.,. q: coefficient of thermal expansion, T1: annual maximum air temperature of a construction area, T2: ambient temperature of construction area, Lmax: the maximum length of the veneer.
3. The structure of paving and pasting a facing of a floor heating area as claimed in claim 2, wherein the filling layer is provided with expansion joints, the facing layer is provided with expansion joints, and the expansion joints on the filling layer are communicated with the expansion joints on the facing layer.
4. The finishing flooring structure of a floor heating area according to claim 3, wherein the finishing layer is covered with a permeable protective agent layer.
5. Finishing paving structure of a floor heating area according to claim 4, characterized in that it comprises: a waterproof layer, the waterproof layer comprising: the waterproof layer comprises a first waterproof layer and a second waterproof layer, wherein the first waterproof layer is arranged on the surface of the structural base layer, and the second waterproof layer is arranged on the surface of the filling layer.
6. The finishing flooring structure of a floor heating area according to claim 5, wherein the second waterproof layer is turned up along the wall and is overlapped with the first waterproof layer.
7. A construction method of a facing paving structure of a floor heating area is characterized by comprising the following construction steps:
s1 floor heating layer construction, the floor heating construction comprises the following construction steps: s101, treating a structural base layer, S102 paving a moisture-proof layer, S103 paving a heat-insulating layer, S104 paving a reflecting film, S105 paving a metal mesh, S106 paving a heating pipe, and S107 constructing a filling layer;
s2 waterproof layer construction, wherein the waterproof layer construction comprises the following construction steps: s201, waterproof layer construction is carried out on a wading area, a first waterproof layer is arranged on the surface of a structural base layer, a second waterproof layer is arranged on the surface of a filling layer, and S202 the second waterproof layer is turned upwards along a wall and is lapped with the first waterproof layer; s203, uniformly brushing waterproof paint on the internal and external corners, sticking reinforcing cloth for reinforcing treatment, and brushing 1-2 layers of waterproof paint on the surface; s204, a heating pipe penetrates through the water stopping ridge, a flexible sleeve needs to be embedded in the outer side of the heating pipe penetrating through the water stopping ridge, and polyurethane sealant or single-component polyurethane waterproof paint is adopted between the flexible sleeve and the heating pipe for embedding and filling tightly; s205, after the waterproof layer construction is finished, cement mortar leveling construction is carried out;
s3 paving the veneer layer, wherein the paving of the veneer layer comprises the following paving steps: s301, veneer protection, S302 adhesive preparation, S303 wet area veneer paving, S304 dry area veneer paving, S305 board seam processing, and S306 expansion joint processing.
8. The construction method of the veneer paving structure of the floor heating area according to claim 7, characterized in that the moisture-proof layer is paved by overlapping IXPE, XPE film or plastic film with the thickness of 2-3 mm, and the overlapping width is 100-150 mm.
9. The construction method of the veneer paving structure of the floor heating area according to claim 8, wherein the heat insulation layer is paved by connecting XPS extruded polystyrene foam plastic plates with the thickness of 10-20 mm in a lap joint mode, and the lap joint width is 20-25 mm.
10. The construction method of the facing paving structure of the floor heating area according to claim 9, wherein the first waterproof layer is made of 1.5-2.0 mm thick single-component polyurethane waterproof paint, and the second waterproof layer is made of 1.5-2.0 mm thick polymer cement waterproof paint.
CN201911255798.3A 2019-12-09 2019-12-09 Facing paving structure of floor heating area and construction method thereof Pending CN110778062A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111578349A (en) * 2020-04-29 2020-08-25 北京建院装饰工程设计有限公司 Novel floor heating laying process
CN112360192A (en) * 2020-11-25 2021-02-12 苏州金螳螂建筑装饰股份有限公司 Facing wall structure for long-term water immersion area and construction method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111578349A (en) * 2020-04-29 2020-08-25 北京建院装饰工程设计有限公司 Novel floor heating laying process
CN112360192A (en) * 2020-11-25 2021-02-12 苏州金螳螂建筑装饰股份有限公司 Facing wall structure for long-term water immersion area and construction method thereof

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