A kind of method that plastic foamboard is bonded with metope
Technical field
A kind of method and construction bonded the present invention relates to plastic foamboard in building exterior wall heat preserving engineering and building wall.
Background technology
At present, the External Walls Heating Insulation of China, the most frequently used way is to be pasted onto foamed plastics using cementing material to build
Beyond the region of objective existence wall lateral surface is built, plays a part of insulation.The most frequently used foamed plastics is polystyrene foam plate, polyaminoresin foam
The sheet materials such as plate.Because there is one layer of smooth epidermis on foam plastics slab surface, after sheet material pastes metope, in temperature deformation, material
Under the comprehensive functions such as the stress tension and compression change of properties that material shrinkage and creep, the positive and negative value changes of wind pressure cause during the deformation of generating body product,
Cementing materials of the Clip between metope and sheet material is generally firmly bonded with metope, but is but easy to be taken off with the smooth skins of sheet material
From so that sheet material from metope separation, hollowing, come off, so that exterior-wall heat insulation construction is destroyed.In order to improve sheet material and agglutination material
The cohesive force of material, prior art on the one hand improve cementing material adhesive property, on the one hand roll out in Foam Plastic Surface it is recessed
Sunken decorative pattern or eyelet.Cementing material is mainly made up of cement mortar and organic adhesion agent, and wherein cement mortar is that composition is cementing
The main component of material entities, its performance is basically unchanged, and the major measure for improving cohesive force is exactly to increase expensive
Organic adhesion agent volume.And depression way is rolled because without the smooth epidermis of destruction sheet material, its effectiveness can only be a small amount of increase
The contact surface of sheet material epidermis and cementing material, DeGrain.So, although prior art increases the cost of exterior-wall heat insulation,
But effect substantially, can not at all eliminate the disadvantage that foam plastics slab departs from metope.
The content of the invention
A kind of method and construction bonded it is an object of the present invention to provide foam plastics slab and metope so that normally using
Under the conditions of foam plastics slab will not depart from metope, and manufacturing cost than prior art reduction.
In order to achieve the above object, the present invention takes the method for destroying foamed plastics epidermis so that sheet material and agglutination material
Expect that there is the foam hole of a large amount of openings on the face of contact, allow cementing material (particularly cement mortar) to enter in foam hole, formed
The wedge shape occlusion of different azimuth so that plate surface turns into the face for being covered with this wedge shape occlusion.This construction, except unprovoked material is strong
Spend not enough and destroy, otherwise sheet material will not occur the phenomenon for departing from metope.During using this method, it is necessary to so that wedge shape occlusion is total
Intensity is respectively greater than sheet material overall strength, cementing material overall strength in respective cross-section, it is ensured that provide sufficient cohesive force.
The method of the present invention and construction are using cutting, plane file or the removal of other means or destroy sheet material portions or whole
Smooth skins, allow foam hole turn into open pore so as in cementing material access aperture with hole wall strong bonded.
The method of the present invention and construction are that to break through in the smooth skins of sheet material or bore and be broken into be the hole of many appropriate depths
Hole, foam hole in pit-hole necessarily turns into open pore, so as to the cementing material of topical application wedge pit-hole and with hole inner opening
Foam hole is engaged, and produces reliable adhesion.
The method of the present invention and construction are to add levelling agent or other in cementing material cement mortar to increase flowing
Property, infiltrative additive so that cementing material can more swimmingly be full of foam hole.
The method of the present invention and construction be to sheet material apply cementing material before or after insert a procedure, i.e., in plate
Material applies early strength agent, the class added material of quick dry agent one with the contact site of cementing material so that cementing material obtains early strong, quick
Dry, so as to shorten the production line maintenance operations time.
The method of the present invention and construction are few in cementing material additions or without organic adhesion agent.Because organic gluing
Agent is necessary main material in the prior art, and it accounts for major part in cementing material cost, and organic adhesion agent is over time
Chemical bond can occur aging and cause bonding failure, and cheap cement mortar is durable.Therefore the present invention can not only make
Obtain plastic foamboard and be firmly combined with reliability with metope, moreover it is possible to the durability that lifting is combined, while can reduces cost.
Instantiation mode
Embodiments of the present invention are illustrated below.
Embodiment-:One piece of extruded polystyrene foam board is taken, punching press is destroyed on two faces of cystosepiment with apparatus, is made
Cystosepiment turns into the sheet material that surface carries a large amount of equally distributed pit-holes, and pit-hole inwall necessarily has the foam hole of many openings.With
Two faces of cement mortar pressure patter material with mobility, allow mortar to enter in pit-hole, wedging open pore, and cement is covered with by this
The foam board cement mortar of chock pastes metope or building roofing, smallpox etc. needs heat-insulated surface.In cystosepiment
Cement mortar is smeared as needed or makees other decorations in outside.
Embodiment two:One piece of extruded polystyrene foam board is taken, is pruned the smooth epidermis of plate face with sharp cutter, as band
There is the coarse plane in a large amount of open-cell foam holes, pressure smears cement mortar in coarse plane, allows cement mortar to enter open pore
In, this has been smeared into being pasted facing to metope for cement mortar.
The cohesive force that appropriate adhesive improves cementing material is added in the cement mortar as cementing material, addition is appropriate
Levelling agent improves the mobility of cementing material, and addition early strength agent shortens the production cycle, or adds less or without adhesive to drop
Low cost, depending on the constructing operation performance of cementing material needs.