Along with the aggravation of world energy sources crisis and the further deterioration of ecological environment; China's energy and environmental issue are more outstanding because of economy continues high speed development contradiction; building thermal-insulation energy-saving work has caused concern in the industry for the influence of ecological environment; require external wall all will do insulation layer; the use amount of its heat insulating material can be big surprising; not only a large amount of resources to be consumed, also new environmental issue might be caused.Building thermal-insulation energy-saving should with social economy's sustainable development; resource (circulation) comprehensive utilization; coordinated developments such as ecological environmental protection; this is the long-term solution that China's building thermal-insulation energy-saving work must think better of; specifically; we will be to the thermal and insulating performance and the practical value of heat insulating material; the stability of material and application life; the reliability of technology; primary study is carried out in aspect such as eco-environmental prote and reusable edible; we can use for reference the successful experience of western developed country; but not follow-up blindly; must be in conjunction with our national conditions and the actual needs of building heat preservation; otherwise; we pay is not only economic cost, and also has the environmental protection cost.
One, heat insulating material
Heat insulating material can be divided into organic and inorganic, compound three major types from using.
1, organic class heat insulating material.As polystyrene block (EPS), extruded polystyrene board (XPS), spraying polyurethane (SPU) and granular polystyrene etc.That organic insulation material has is in light weight, workability good, compactness is high, good effect of heat insulation, but shortcoming is: not ageing-resistant, coefficient of deformation is big, poor stability, poor stability, easy firing, eco-environmental prote is very poor, difficulty of construction is big, engineering cost is higher, its resource-constrained, and be difficult to cycling and reutilization.
2, inorganic heat insulation material.As hollow glass bead, expanded perlite, closed perlite, rock wool etc.Inorganic heat insulation material unit weight is big slightly, the thermal insulation less efficient, but fire protection flame retarding, coefficient of deformation are little, anti-aging, stable performance, combine better with plinth course and float coat, safety and firmness is good, insulation layer intensity and durability than organic insulation material height, long service life, difficulty of construction is little, engineering cost is lower, eco-environmental prote is good, can cycling and reutilization.
3, compound material.With the crop stalk of radiation proof heat-absorbing material, glass wool, rock wool or even treated mistake, utilizablely have heat insulating ability and carry out the rubbish of harmless treatment and the hollow material by the productions of technological means such as foaming etc.The heat insulating effect of composite material is better, it has the lot of advantages of inorganic heat insulation material: fire protection flame retarding, coefficient of deformation are little, anti-aging, stable performance, eco-environmental prote are good, insulation layer intensity height, long service life, difficulty of construction is little, engineering cost is lower, its raw material wide material sources, energy consumption is low, eco-environmental prote is good, can economize on resources, improve resource circulation utilization ratio again.
Other heat insulating material such as insulating moulding coating, radiation shielding coating etc., these materials have certain heat insulating effect, have also obtained some progress in the application, but there is limitation in its performance and the application, the one, material cost is higher, and the 2nd, coating aging is fast, and application life is limited.
4, material and technology
Organic foaming kind heat insulating material as: polystyrene block (EPS), extruded polystyrene board (XPS), spraying polyurethane (SPU) and granular polystyrene etc., auxiliary material are polymer bonding mortar, interface treating agent or boundary mortar, special-purpose swell fixture, alkali-resistant glass fiber mesh or galvanized steel wire netting, anti-cracking plastering mortar etc.The construction technology of plastic plate class heat insulating material generally is nail, interface processing or special treating agent, subsides net after gluing earlier, smears anticracking grout.The difficulty of construction of foaming plate heat insulating work is bigger, the technology more complicated, application on China's building heat preservation engineering has the history about 10 years, from beginning till now, in the industry at most to the arguement of aspects such as the stability of system, safety, application life, ecological, environmental protective, be easy to generate workmanship and potential safety hazard, principal element has that the intensity of warming plate is low, bearing capacity is poor, yielding.
Along with going deep into that the organic outer heat insulating energy saving material of construction wall is used, people find that gradually it still has five big defectives in recent years:
1, easily comes off and hurt sb.'s feelings.Foundation wall and incrustation mortar are inorganic material, combine with organic outer insulation, because its chemical attribute difference therefore in conjunction with insecure, a lot of cases of hurting sb.'s feelings that come off that rise has taken place now.
2, resistance to biological attack is poor.The organic material quality is dredged soft, easily by biological damages such as termites.
3, fire safety evaluating hidden danger is arranged, it is combustion-supporting and produce a large amount of toxic gases to meet fire.Organic combustible material is now prohibited by country.
4, manufacturing process is numerous and diverse, and the material cost fluctuates with oil price, the difficult control of cost.
5, easily aging distortion, the life-span weak point can not with the same life-span of building.
Summary of the invention
At existing problem in the background technology, it is a kind of big with the body of wall adhesion stress that the utility model provides, and the Wind-Pressure Resistance ability is strong, and fire-protection rating is up to arriving fire-retardant type, weather-proof ventilative, the inorganic light-weight aggregate thermal insulation mortar of cracking resistance excellence pastes builds the cotton warming plate composite external thermal insulation system of inorfil.
Concrete technical scheme of the present utility model is as follows: a kind of inorganic sandwich composite external thermal insulation system, comprise foundation wall, periphery, foundation wall interface is disposed with inorganic light-weight aggregate thermal insulation mortar tack coat and the cotton insulation of inorfil flaggy, and the cotton insulation of inorfil flaggy also is provided with cracking resistance overcoat and coating ornamental surface layer outward successively.
Composite external thermal insulation system of the present utility model, the used material of described inorfil cotton insulation flaggy are any in hydrophobicity or non-hydrophobicity glass wool warming plate, hydrophobicity or the non-hydrophobicity rock wool heat-preservation plate.
The utlity model has following beneficial effect: the utility model adopts bonding full the gluing of the cotton warming plate of inorfil of the inorganic light-weight aggregate thermal insulation mortar and the fire-retardant type of fire-retardant type, stay seam to paste and build way, making the cotton warming plate of inorfil do not fired the inorganic light-weight aggregate thermal insulation mortar encirclement of A level and not have cavity with body of wall bonds, given system and the body of wall adhesion stress is big, the Wind-Pressure Resistance ability is strong, the fire-protection rating height, weather-proof vapour, the cracking resistance excellence, the construction wide accommodation, the cost performance advantages of higher can be at various high building structures, use at the demanding building exterior wall heat preserving of multi-layer construction structure and fire-protection rating position.
The specific embodiment
As shown in Figure 1, the cotton warming plate sandwich composite external thermal insulation system of a kind of inorganic light-weight aggregate thermal insulation mortar subsides block inorfil comprises basic unit's body of wall 1, inorganic light-weight aggregate thermal insulation mortar tack coat 2, the cotton insulation of inorfil flaggy 3, polymers anti-cracking mortar overcoat 4, alkali resistant glass fibre open weave cloth 5, polymers anti-cracking mortar overcoat 6, coating or cladding finish coat 7.The cotton insulation of inorfil flaggy 3 can use any in the cotton plate of several inorfils such as the rock cotton board of hydrophobicity (not hydrophobicity) or the block of glass wool of hydrophobicity (not hydrophobicity) in the specific implementation process.
The construction technology that inorganic light-weight aggregate thermal insulation mortar pastes the cotton warming plate composite external thermal insulation system of block inorfil is as follows: metope base treatment-boundary mortar is processed---pastes with the thick bonding inorganic light-weight aggregate thermal insulation of 15mm slurry and builds the cotton warming plate of inorfil (inorfil cotton warming plate thickness is decided according to design, and supposition design here need to be thick for 30mm)---coating ornamental surface construction that brushing macromolecule emulsion elastic bottom coating---is scraped flexible waterproof putty---that---smear anticracking grout and smear immediately the pressure alkali resistant glass fibre open weave cloth---first floor metope is smeared anticracking grout twice by laying bricks or stones.
Adopt the cotton warming plate of inorfil that inorganic light-weight aggregate thermal insulation mortar levelling slurry is completely sticking, there are indent or smooth and two-sided brushing boundary mortar in subsides block surface in the above-mentioned construction technological process, 5mm plate seam is extruded strickling with building the ash of meeting and discussing by laying bricks or stones, and forming composite heat-insulating layer and body of wall does not have the cavity bonding; The cracking resistance overcoat adopts the compound alkali resistant glass fibre open weave cloth of anticracking grout, the elasticity primary coat that external coating can effectively stop aqueous water to enter, and finish coat is scraped flexible waterproof putty, and surface layer adopts elastic coating.
Inorganic light-weight aggregate thermal insulation mortar pastes the cotton warming plate sandwich composite external thermal insulation system of block inorfil and is applicable to the outer heat insulating work of different climatic provinces external wall.Basic unit can be concrete, building-block, materials such as lightweight filling masonry, loam brick and non-clay brick.