Summary of the invention
Technical problem to be solved by this invention is primarily aimed at the Xia Redong cryogenic region, summer hot and longer duration, winter cold and air humidity special climate characteristics such as big, technological design from the system that chooses of material, the heat-proof quality that mainly solves body of wall has heat-insulating property concurrently, and the cracking resistance of structural system, impervious, Wind-Pressure Resistance, shock proof technical barrier.
Technical scheme of the present invention: a kind of NEW TYPE OF COMPOSITE building heat insulation structure, this heat-insulation and heat-preservation structure has building substrate, insulating, reinforcing crack-resistant layer, heat reflection decorative layer from the inside to the outside successively, it is characterized in that: insulating is made up of composite dry powder material A and polystyrene foam particles B two parts, composite dry powder material A consists of cement 50~80%, and specific area is 400~5000m
2The sial glass hollow ball material 10~40% of/kg, air entraining agent 0.005~0.05%, modifier 1~5%, water reducing agent 0.2~1.2%, fiber 0.1~5%, tackifier 0.5~2%, reinforcing crack-resistant layer is formed by hot-galvanized steel silk screen and fiber-reinforced polymer modification cracking resistance matrix coagulation, the component of cracking resistance matrix and weight content are: 1 part of cracking resistance rubber powder, 2~2.5 parts of cement, 10~12 parts in sand, 2~2.5 parts in water, the component of cracking resistance rubber powder and weight content are: inorganic mineral powder 30~50%, alkali proof fiber 0.1~4%, volume stabilizer 20~45%, polymer modifiers 30~45%, employing plastic expansion bolt hangs silk screen and is fixed in insulating, and the heat reflection decorative layer is selected light glazed ceramic wall tile or glass for use, aluminium alloys, other have the ornament materials of heat reflection function stainless steel curtain walls etc.A kind of construction technology of NEW TYPE OF COMPOSITE building heat insulation structure, construction sequence is as follows:
A, base treatment adopt corresponding processing mode respectively according to different building substrate surface conditions, comprise adopting conventional cement mortar levelling, polymer water soil mortar plucking or not handling;
B, insulating construction are adopted the one-coat plastering moulding to the insulating below the 4cm thickness, to then wiping one's face at twice or repeatedly more than the 4cm;
C, the construction of reinforcing crack-resistant layer, after above-mentioned construction sequence b finishes, employing plastic expansion bolt is with the suspension of hot-galvanized steel silk screen and be fixed in the heat-insulation and heat-preservation laminar surface, its fixed expansion bolt should enter the building substrate of isolation layer inside, whitewash polymer cement mortar then, itself and hot-galvanized steel silk screen are mixed to integrated bonded at the heat-insulation and heat-preservation laminar surface;
D, for the facade matrix, the plastic expansion bolt become with insulating 95-120 ° oblique down fixing;
Light glazed ceramic wall tile is pasted in c, the construction of heat reflection decorative layer; Or plug-in curtain wall etc. has the decorative material of heat reflection function, and this step adopts the metal of the band plastics expansion set bolt that expands, and at the junction of bolt and outer decorative layer parts increase plastic gasket;
F. adopt flexible caulking material to the decorative material filleting.
Beneficial effect
1, determines the thickness of insulating according to the heat-conductive characteristic of building substrate material and country relevant building energy-saving standard, can save material in a large number and improve work efficiency, significantly reduce cost.For example, adopt heat-insulation and heat-preservation layer thickness of the present invention and corresponding thermal isolation technique index such as the table 1 that reaches thereof at the Xia Redong of China middle and south cryogenic region:
The heat insulation index that table 1 China Xia Redong cryogenic region adopts the different-thickness insulating to be reached to common building substrate
The building substrate structure | Heat-insulation and heat-preservation layer thickness (cm) | Coefficient of thermal conductivity (W/mk) | Coefficient of heat accumulation (W/m
2·k)
|
Concrete block, whole water, bodies of wall such as common brick, sand, real coreboard | ????3 | Standard-required | The actual measurement index | Standard-required | The actual measurement index |
≤0.058 | ??0.057 | ??≥1.30 | ??1.75 |
Bodies of wall such as aerated-block, hollow building-block, hollow sheet material | ????2 | ??0.054 | ??1.95 |
Promptly generally be no more than 3cm, adopt the technology of the present invention can the one-coat plastering moulding at these regional heat-insulation and heat-preservation layer thicknesses.And to reach same heat-insulation and heat-preservation index in northern China or the Northwest, then same building substrate structure is needed the heat-insulation and heat-preservation layer thickness is increased to more than the 6cm.
2, adopt the hot-galvanized steel silk screen of designing requirement of the present invention to have higher durability and intensity, adopt relevant intensity index such as the table 2 that overall structure reached of ceramic tile as outer decorative layer than other silk screens:
The intensity index of table 2 NEW TYPE OF COMPOSITE building outer heat insulation layer
Interventions Requested | Index request | Assay |
Impact strength (3.0J) | Impact for 10 times, breakdown point is no more than 4 | 1 of breakdown point |
Wind-Pressure Resistance | Wind load design load less than building substrate | Add (1-5) KPa wind load, nothing comes off, no layering, and crab-bolt is not drawn out |
3, adopt corresponding processing mode respectively at different building substrate water imbibitions and surface condition, to processing method and the effect such as the table 3 of some common building substrates.
The base treatment method and the effect on the different building structure of table 3 surface
Position and surface appearance | Processing method | Effect |
Concrete wall such as beam, plate, post | Smooth especially surface is cut a hole hair or whitewashed accessibility polymer water soil mortar plucking, exasperate is only needed levelling | Polymer cement mortar plays two aspect effects: (1) makes insulating and the more firm stickup of matrix, (2) prevent that early stage insulating moisture from being absorbed by matrix, reduces its cracking probability.To directly next step construction of smooth exasperate |
The hair wall that aerated-block, concrete block, various brick are made | With sand finish |
Whitewashed the dry wall of sand finish layer | Need not handle, enter next step construction |
The specific embodiment
A kind of NEW TYPE OF COMPOSITE building heat insulation structure, this heat-insulation and heat-preservation structure has building substrate, insulating, reinforcing crack-resistant layer, heat reflection decorative layer from the inside to the outside successively, it is characterized in that: insulating is made up of composite dry powder material A and polystyrene foam particles B two parts, composite dry powder material A consists of cement 60%, and specific area is 400~5000m
2The sial glass hollow ball material 35% of/kg, air entraining agent 0.05%, modifier %, water reducing agent 0.95%, fiber 2%, tackifier 2% are reinforced crack-resistant layer and are formed by hot-galvanized steel silk screen and fiber-reinforced polymer modification cracking resistance matrix coagulation, the component of cracking resistance matrix and weight content are: 1 part of cracking resistance rubber powder, 2.5 parts of cement, 12 parts in sand, 2.5 parts in water, the component of cracking resistance rubber powder and weight content are: inorganic mineral powder 40%, alkali proof fiber 2%, volume stabilizer 20%, polymer modifiers 38%, employing plastic expansion bolt hangs silk screen and is fixed in insulating, and the heat reflection decorative layer is selected the light glazed ceramic wall tile with heat reflection function and decoration functions for use.A kind of construction technology of NEW TYPE OF COMPOSITE building heat insulation structure, construction sequence is as follows:
A, base treatment are according to building substrate and surface condition, for the hair wall of aerated-block making, so adopt conventional cement mortar levelling and plucking;
The construction of b, hot insulation layer is 3cm according to the thickness of wall body of heat-insulation and heat-preservation index Design, so insulating adopts the one-coat plastering moulding;
C, solid crack-resistant layer construction, after above-mentioned construction sequence b finishes, employing plastic expansion bolt is with the suspension of hot-galvanized steel silk screen and be fixed in the heat-insulation and heat-preservation laminar surface, its fixed expansion bolt should enter the building substrate of isolation layer inside, whitewash polymer cement mortar then, itself and hot-galvanized steel silk screen are mixed to integrated bonded at the heat-insulation and heat-preservation laminar surface;
D, because be wall thermal insulating, the plastic expansion bolt becomes 95~120 ° obliquely to fix down with insulating;
E, the construction of heat reflection decorative layer are pasted light glazed ceramic wall tile as decorative material.
F, the flexible caulking material of employing are to the decorative material filleting.