CN103306385B - A kind of construction method of inorganic fire building heat insulation system - Google Patents
A kind of construction method of inorganic fire building heat insulation system Download PDFInfo
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- CN103306385B CN103306385B CN201310242441.8A CN201310242441A CN103306385B CN 103306385 B CN103306385 B CN 103306385B CN 201310242441 A CN201310242441 A CN 201310242441A CN 103306385 B CN103306385 B CN 103306385B
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Abstract
The present invention relates to a kind of construction method of inorganic fire building heat insulation system, comprise body of wall, be provided with binding sand pulp layer, warming plate, float coat and finish coat successively at exterior surface of wall; Described float coat is made up of anchoring piece, Crack-resistance Front Mortar layer, alkaline-resisting coating scrim layer, Crack-resistance Front Mortar layer.Construction method is, by body of wall pretreatment, spreads upon exterior surface of wall after adhesive mortar and water mix and blend; Warming plate is pasted onto in binding sand pulp layer; Anchoring piece is fixed on body of wall through warming plate, then uniform application after Crack-resistance Front Mortar and water mix and blend at the surface layer of warming plate, the alkaline-resisting coating screen cloth of paving pressure, again smears the Crack-resistance Front Mortar of mix and blend after the solidification of Crack-resistance Front Mortar layer; Finish coat is formed at the outer uniform application building coating of float coat or binding face tile.The coefficient of thermal conductivity of this heat-insulation system is low, has good heat insulation effect, compressive strength is high, good endurance, and cost is low, energy-conserving and environment-protective.
Description
Technical field
The present invention relates to a kind of heat-insulation system, particularly a kind of inorganic fire building heat insulation system and construction method thereof.
Background technology
Cold winter, especially the northern area of China, winter is cold especially, is the needs enabling the temperature of house interior in winter meet instructions for use and building energy conservation, and practical, the most economic way of employing is exactly arrange insulation layer at the exterior wall of building, interior wall and roofing.
At present, on building trade market, exterior wall caking property heat-insulation system many employings polyphenyl board exterior wall outer thermal insulation plate or cement board add the way of mortar coating.Polyphenyl plate full name polystyrene foam plate, have another name called cystosepiment or EPS plate is by the expandable polystyrene bead containing volatile fluid foaming agent, the white solid with fine hole-closing structure of hot briquetting in a mold after heating pre-sending out, although this plate density is low, quality is light, coefficient of thermal conductivity is little, but it is inflammable, toxic gas and flame is produced in the process of burning, great risk is brought to survivor, simultaneously, polyphenyl plate also can produce hot melt compression deformation because being heated and drop, and causes fatal danger to escape personnel and salvor.And the water absorption rate of polyphenyl plate is higher, easily absorbs water, along with the increase of water absorption, its coefficient of thermal conductivity also increases, and heat insulation effect is also deteriorated thereupon.Along with the raising that people require building fire protection, inflammable polystyrene foam plate is gradually inapplicable in heat-insulation system.People bring into use cement board to use as heat insulation layer, its fire-protection rating resistance to compression reaches A2 level, but the compressive strength of cement board is less than 0.5Mpa, even only has 0.1Mpa, the destruction of cement board is very easily caused during its construction, in addition lower compressive strength also can cause the exterior wall heat-preserving system compressive strength made lower, can reduce the application life of external wall of house heat-insulation system.
Summary of the invention
The object of this invention is to provide a kind of inorganic fire building heat insulation system, the fire-protection rating of this system reaches A1 level, and coefficient of thermal conductivity is low, high insulating effect, and foundation wall, adhesion stress between tack coat and insulation layer are strong, and curing period is short, and cost is low, energy-conserving and environment-protective.
Another object of the present invention is to provide a kind of construction method of above-mentioned inorganic fire building heat insulation system, and this construction technology is simple, and construction quality is high, short construction period.
Object of the present invention can be achieved through the following technical solutions:
A kind of inorganic fire building heat insulation system, comprises body of wall, it is characterized in that: be provided with binding sand pulp layer, warming plate, float coat and finish coat successively at exterior surface of wall; Described float coat is made up of anchoring piece, Crack-resistance Front Mortar layer, alkaline-resisting coating scrim layer, Crack-resistance Front Mortar layer.
The construction method of above-mentioned inorganic fire building heat insulation system, its step comprises:
(1) by body of wall pretreatment, be the ratio mix and blend 1-5 minute of 1:0.1-0.3 adhesive mortar and water according to weight ratio, leave standstill and spread upon exterior surface of wall after 3-8 minute, form binding sand pulp layer;
(2) warming plate is pasted onto in binding sand pulp layer;
(3) anchoring piece is fixed on body of wall through warming plate, then be the ratio mix and blend 1-5 minute of 1:0.1-0.3 Crack-resistance Front Mortar and water according to weight ratio, uniform application is at the surface layer of warming plate, the alkaline-resisting coating screen cloth of paving pressure, after the solidification of Crack-resistance Front Mortar layer, again smear the Crack-resistance Front Mortar of mix and blend, finally form float coat;
(4) finish coat is formed at the outer uniform application building coating of float coat or binding face tile.
In described step (1), adhesive mortar comprises the raw material of following percentage:
Described binding material is made up of portland cement and high alumina cement, and the weight ratio of portland cement and high alumina cement is 15-25:1; Fines is grating yellow ground, and the particle diameter of this yellow ground is 109-212 μm; Described polymer latex ramming material forms by dispersibling latex, organosilicon moisture repellent and hydroxypropyl methyl cellulose ether, and the weight ratio dispersibling latex, organosilicon moisture repellent and hydroxypropyl methyl cellulose ether is 20-25:1-3:1; Described accelerating admixture is the one in lithium carbonate or lithium chloride.
In described step (2), warming plate is cement insulation board; The thickness of binding sand pulp layer is 2-4mm.Preferably, the thickness of binding sand pulp layer is 3mm.
In described step (3), Crack-resistance Front Mortar comprises the raw material of following percentage:
Described admixture is I grade of flyash, the fineness of this flyash be 45um square hole screen tail over≤12%; Described fines is grating yellow ground, and the particle diameter of this yellow ground is 109-212 μm; The particle diameter of described powdered whiting is 40-50 μm, and calcium carbonate content is 98wt%; Described anti-crack fiber is polypropylene fibre, and diameter is 6-9mm; The water content of described thixotropic lubricant is 9-13%, and density is 600-800g/L.
In described step (3), the degree of depth that anchoring piece anchors into base course wall is 45-55mm, and the use amount of anchoring piece is 4-6/m
2.
The invention has the beneficial effects as follows:
1, the heat-insulation system in the present invention adopts the cement board with A1 level fire-protection rating as warming plate, adopt and there is early solidifying, adhesive mortar that waterproof effect the is excellent tack coat as warming plate and body of wall, adopt and there is the Crack-resistance Front Mortar that adhesion strength is high, effect of prestressed is good, as the mortar of float coat.So the coefficient of thermal conductivity of the heat-insulation system of this structure is low, there is good heat insulation effect, energy-conservationly reach more than 50%; Compressive strength is high, good endurance, extends the life-span of heat-insulation system.
2, low, the energy-conserving and environment-protective of the cost of the tack coat of described heat-insulation system, float coat, can be widely used in the insulation of external wall, interior wall, roofing.
3, the construction technology of described heat-insulation system is simple, and construction quality is high, short construction period.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
Embodiment
(1), the pretreatment of body of wall:
Disposed by the attachments such as water stain, the greasy dirt of surface of wall, dry (the water content <8% of surface of wall), reject the projection of body of wall, hollowing and loose position, surface of wall flatness deviation is less than 4mm.
(2) preparation of adhesive mortar:
By following raw material according to addition (weight portion) mixing, be specially:
Ordinary Portland cement (PO42.5 portland cement) 360 parts, high alumina cement 19 parts, grating yellow ground (70-140 order) 580 parts, polymer latex ramming material 39 parts (wherein the weight ratio of polymer dispersion powder, hydroxypropyl methyl cellulose ether (30,000 viscosity) and organosilicon moisture repellent is 45:3:2), thixotropic lubricant 1.9 parts and lithium chloride 0.1 part, join mixing in agravic mixing and blending machine and namely obtain adhesive mortar in 5 minutes.
(3) preparation of Crack-resistance Front Mortar:
By following raw material according to addition (weight portion) mixing, be specially:
Cement (PO42.5 portland cement) 350 parts, 50 parts, I level flyash, powdered whiting 100 parts, grating yellow ground (70-140 order) 470 parts, polymer glue powder 25 parts, polypropylene anti-crack fiber 1 part, wood fibre 3 parts and thixotropic lubricant 1 part, join mixing in agravic mixing and blending machine and namely obtain Crack-resistance Front Mortar in 5 minutes.
(4) preparation of heat-insulation system:
A, be the ratio mix and blend 5 minutes of 1:0.2 according to weight ratio adhesive mortar obtained in step (2) and water, leave standstill and spread upon after 5 minutes through pretreated exterior surface of wall in step (1), form binding sand pulp layer.
B, cement board is pasted onto in binding sand pulp layer, be pasted onto at once by cement board the body of wall scribbling adhesive mortar slides in place, cementation is lost to prevent adhesive mortar surface skining, should gently rub during stickup, even extruding, and flatten operation with 2m guiding ruler, ensure its planeness and firm pasting.After adhesive mortar extruding, thickness is 3mm.Want jam-packed between cement board and cement board, stickup rubber cement is not smeared at seam place of meeting and discussing, if because cutting gap that is uneven or angle steel formation, more than the gap of 1.5mm, fill with anticracking grout.
C, cement board paste fixed anchors after 24-48 hour, and be fixed on body of wall by anchoring piece through warming plate, the degree of depth that anchoring piece anchors into base course wall is 50mm, and in order to ensure firmly, the quantity of anchoring piece is 5/m
2, the anchoring piece in every block cement board is no less than 2; Then be the ratio mix and blend 2 minutes of 1:0.2 according to weight ratio the Crack-resistance Front Mortar in step (3) and water, uniform application is at the surface layer of cement board, the alkaline-resisting coating glass screen cloth of paving pressure, after the solidification of Crack-resistance Front Mortar layer, again smear the Crack-resistance Front Mortar of mix and blend, finally form float coat.When Crack-resistance Front Mortar is smeared, necessary compacting, thickness is no more than 20mm, and thickness in monolayer is no more than 12mm.
D, evenly apply building coating outward at float coat, form finish coat.
Test experience:
1, tested by the fireproof heat-insulation system obtained in the present embodiment, particular exam data are as shown in table 1 below:
Table 1
This detection method is with reference to JGJ144-2004 " external wall outer insulation engineering code ", weatherability sample is of a size of 3250mm*2250mm*50mm, Wind-Pressure Resistance specimen size is 2500*2100*50mm, and the specimen size of other test items is 200mm*200mm*50mm.
The coefficient of thermal conductivity of the heat-insulation system of this structure is 0.06W/ (m 〃 k), has good heat insulation effect, energy-conservationly reaches more than 50%.Fire-protection rating is A1 level, and have good flameproof effect, compressive strength is high, good endurance, extends the life-span of heat-insulation system.
2, detected by the adhesive mortar obtained in the present embodiment, concrete test result is as shown in table 2 below:
Table 2
Detect according to the experimental technique of (technical requirements of exterior-wall heat insulation dedicated mortar) of DB31/T366-2006: maintenance 28 days, prepared adhesive mortar and cement mortar tensile bond strength reach 1.47Mpa, maintenance 7 days, prepared adhesive mortar and cement mortar tensile bond strength reach 1.1Mpa, soak after 48 hours, reach 0.44Mpa with the tensile bond strength of warming plate, adhesion strength is high, and adhesion stress is large; The morning of prepared adhesive mortar coagulates effective, decreases the construction and maintenance cycle; The impermeability pressure of 28 days reaches 1.2Mpa, can reach water proof anti-seepage effect, improves the durability of whole heat-insulation system.
3, the Crack-resistance Front Mortar obtained in the present embodiment detected, concrete test result is as shown in table 3 below:
Table 3
Detect according to the experimental technique of (technical requirements of exterior-wall heat insulation dedicated mortar) of DB31/T366-2006, during constructing operation, the workability of described Crack-resistance Front Mortar and pliability are very good; Be 1.34Mpa (28d) with cement mortar tensile bond strength; Soak after 48 hours, reach 0.48Mpa with the tensile bond strength of warming plate; Wipe one's face and have no infiltration crack after 80 high temperature-trickles circulation and 30 heating-freeze cycle, phenomenon, its crack resistance excellence such as have no efflorescence, hollowing, peel off.
The above is preferred embodiment of the present invention, but the present invention should not be confined to the content disclosed in this embodiment.The equivalence completed under not departing from spirit disclosed in this invention so every or amendment, all fall into the scope of protection of the invention.
Claims (5)
1. a construction method for inorganic fire building heat insulation system, this inorganic fire building heat insulation system comprises body of wall, it is characterized in that: be provided with binding sand pulp layer, warming plate, float coat and finish coat successively at exterior surface of wall; Described float coat is made up of anchoring piece, Crack-resistance Front Mortar layer, alkaline-resisting coating scrim layer, Crack-resistance Front Mortar layer, and the construction method of this inorganic fire building heat insulation system is,
(1) by body of wall pretreatment, be the ratio mix and blend 1-5 minute of 1:0.1-0.3 adhesive mortar and water according to weight ratio, leave standstill and spread upon exterior surface of wall after 3-8 minute, form the binding sand pulp layer that thickness is 2-4mm;
Described adhesive mortar comprises the raw material of following percentage:
(2) warming plate is pasted onto in binding sand pulp layer, this warming plate is cement insulation board;
(3) anchoring piece is fixed on body of wall through warming plate, then be the ratio mix and blend 1-5 minute of 1:0.1-0.3 Crack-resistance Front Mortar and water according to weight ratio, uniform application is at the surface layer of warming plate, the alkaline-resisting coating screen cloth of paving pressure, after the solidification of Crack-resistance Front Mortar layer, again smear the Crack-resistance Front Mortar of mix and blend, finally form float coat;
(4) finish coat is formed at the outer uniform application building coating of float coat or binding face tile.
2. the construction method of inorganic fire building heat insulation system according to claim 1, it is characterized in that: in described step (1), described binding material is made up of portland cement and high alumina cement, and the weight ratio of portland cement and high alumina cement is 15-25:1; Fines is grating yellow ground, and the particle diameter of this yellow ground is 109-212 μm; Described polymer latex ramming material forms by dispersibling latex, organosilicon moisture repellent and hydroxypropyl methyl cellulose ether, and the weight ratio dispersibling latex, organosilicon moisture repellent and hydroxypropyl methyl cellulose ether is 20-25:1-3:1; Described accelerating admixture is the one in lithium carbonate or lithium chloride.
3. the construction method of inorganic fire building heat insulation system according to claim 1, is characterized in that: in described step (3), Crack-resistance Front Mortar comprises the raw material of following percentage:
4. the construction method of inorganic fire building heat insulation system according to claim 3, is characterized in that: described admixture is I grade of flyash, the fineness of this flyash be 45 μm of square hole screens tail over≤12%; Described fines is grating yellow ground, and the particle diameter of this yellow ground is 109-212 μm; The particle diameter of described powdered whiting is 40-50 μm, and calcium carbonate content is 98wt%; Described anti-crack fiber is polypropylene fibre, and diameter is 6-9mm; The water content of described thixotropic lubricant is 9-13%, and density is 600-800g/L.
5. the construction method of inorganic fire building heat insulation system according to claim 1, is characterized in that: in described step (3), and the degree of depth that anchoring piece anchors into base course wall is 45-55mm, and the use amount of anchoring piece is 4-6/m
2.
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| CN108374498A (en) * | 2018-02-23 | 2018-08-07 | 邯郸市肥乡区钰鼎建材有限公司 | A kind of inorganic fireproof heat insulating plate used for building exterior wall |
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| CN104230252B (en) * | 2014-08-04 | 2016-04-06 | 马鞍山十七冶工程科技有限责任公司 | A kind of self-heat conserving for Light trabs connection is high-strength is dry mixed adhesive mortar and preparation method thereof |
| CN104533010A (en) * | 2014-12-16 | 2015-04-22 | 沈阳嘉宝建材有限公司 | Manufacturing method of foam concrete batten |
| CN105421598A (en) * | 2015-11-10 | 2016-03-23 | 登封电厂集团铝合金有限公司 | Face brick decorative finish outer heat-preservation system and construction method thereof |
| CN106186915A (en) * | 2016-07-04 | 2016-12-07 | 成都市易建建筑材料有限公司 | Thin layer motar and construction method are directly scraped in modification |
| CN108571162A (en) * | 2017-03-10 | 2018-09-25 | 天津市华利杰科技发展有限公司 | A kind of compound heat preservation die plate used for building exterior wall and its construction method |
| CN107447876A (en) * | 2017-07-01 | 2017-12-08 | 温州市华宏市政园林工程建设有限公司 | The heat-insulation system and construction method of a kind of construction wall |
| CN111255102A (en) * | 2020-03-20 | 2020-06-09 | 刘川 | Aerogel particle composite heat insulation system |
| CN113719047B (en) * | 2021-09-07 | 2023-09-22 | 河北金铎建设工程有限公司 | Building outer wall protection decoration structure, application and construction process |
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| CN108374498A (en) * | 2018-02-23 | 2018-08-07 | 邯郸市肥乡区钰鼎建材有限公司 | A kind of inorganic fireproof heat insulating plate used for building exterior wall |
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