CN102561558A - LJS (Longjishi) frame-shear cast-in-place concrete exterior form and construction method thereof - Google Patents

LJS (Longjishi) frame-shear cast-in-place concrete exterior form and construction method thereof Download PDF

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Publication number
CN102561558A
CN102561558A CN201210056585XA CN201210056585A CN102561558A CN 102561558 A CN102561558 A CN 102561558A CN 201210056585X A CN201210056585X A CN 201210056585XA CN 201210056585 A CN201210056585 A CN 201210056585A CN 102561558 A CN102561558 A CN 102561558A
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China
Prior art keywords
ljs
cast
exterior sheathing
composite mortar
place concrete
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CN201210056585XA
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Chinese (zh)
Inventor
孙娥
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Weihai Longjishi Energy-saving Technology Co Ltd
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Weihai Longjishi Energy-saving Technology Co Ltd
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Priority to CN201210056585XA priority Critical patent/CN102561558A/en
Publication of CN102561558A publication Critical patent/CN102561558A/en
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Abstract

The invention belongs to the technical field of building engineering, in particular to an LJS (Longjishi) frame cast-in-place concrete exterior form, which is characterized in that a substrate is formed by spraying polymer interfacial agent to one side of a level-B XPS (extruded polystyrene foam) insulation board, a level-A phenolic foamed board, a closed cell pearlite hydrophobic board or a glazed hollow bead board prior to coating a polymer composite mortar layer 3-5mm in thickness, and spraying polymer interfacial agent to the other side of the level-B XPS insulation board, the level-A phenolic foamed board, the closed cell pearlite hydrophobic board or the glazed hollow bead board prior to laying a hot-galvanized electro-welded wire mesh and coating a polymer composite mortar layer (serving as an outer side) 7-10mm in thickness. The polymer interfacial agent is 3kg, the extruded plastic board is 1.4-1.8kg/m2, U-shaped clamps are 3-5/m2, and the hot-galvanized wire mesh is 50X50mm or 12.5X12.5mm. The LJS frame cast-in-place concrete exterior form has the advantages that fireproofing safety is fine, construction procedures are simplified, material and construction cost is decreased, grout overflow is not easy to occur in concreting, no micro-fracture cold or hot bridge occurs to an insulation layer, a beam column, a shear position and a filled wall are on a same plane, and the like.

Description

The LJS framework, cut cast-in-place concrete heat-preservation exterior sheathing and job practices
Technical field
The present invention relates to belong to construction engineering technical field, LJS framework (cutting) the cast-in-place concrete heat-preservation exterior sheathing and the job practices of specifically a kind of easy construction, high insulating effect.
Background technology
As everyone knows; Framework (cutting) structure is filled the building block of processing such as materials such as gas concrete; This is the primary structure form of China's building; But owing to comprise that the thermal property of gas concrete packing material all can not satisfy present building energy conservation requirement, most of way that adopts the allowable ratio of height to sectional thickness of masonry wall or column body to paste or spray organic insulation material (like B level < B1, B2>XPS warming plate) foamed plastics.But the problem that this way operation is many, be prone to produce hollowing, cracking, seep water, come off, worm ant moth loses; Particularly fireproof performance is poor; The employing adhesive polystyrene granule heat-insulating mortar external wall heat insulation system that also has; Though this way has remedied the deficiency of B06 gas concrete thermal property,, not only increased working procedure but also increased cost owing on the adhesive polystyrene granule heat-insulating mortar layer, also need do the cracking resistance surface layer; Domestic in recent years release adopts gas concrete to utilize the way of masonry self thermal and insulating performance: promptly the aerated concrete wall body is with B05 level aerated blocks; No longer additional heat insulating material; Insulation layer is done with low-density B03, B04 level gas concrete in the beam column position, and this way makes construction more simple undoubtedly, and fireproof performance is preferably arranged; But since aerated blocks B03, B04, B05 production requirement high, yield poorly, cost is high, a lot of areas can not produce this product; Cause this way of gas concrete self thermal and insulating performance of utilizing to be difficult to implement in these areas; Our company had researched and developed LJS-steam-pressing aero-concrete combined wall self-heat conserving system in 2008; On the basis that utilizes Autoclaved aerated concrete blocks self thermal property; Employing LJS-steam-pressing aero-concrete composite mortar (A type, C type) is built by laying bricks or stones and is wiped one's face; Reduce the temperature deformation stress of storeroom to greatest extent, thereby reduce, prevent the generation of wall face cracking problem, and can according to the thermal property situation of wall body air-entrained concrete building block self it be remedied and strengthen.Satisfy the energy-saving design requirement, solved the problem and shortage of above-mentioned various systems.But this cover system is for the beam column position of frame construction, and the shearing position of frame structure still must adopt the back to paste or the practice of cast in place concrete form built-in heat insulation plate, and this way exists still that construction sequence is loaded down with trivial details, the problem of fire savety difference.
Listing last year < FS exterior sheathing cast-in-situ concrete compound insulation system >; Adopt FS complex heat-preservation exterior sheathing will be incubated and pour into a mould in one with the exterior sheathing function; And then further simplified working procedure, reduced material and construction cost. but FS complex heat-preservation exterior sheathing exist cost of manufacture height, product weight big, be not easy to the transportation carrying, use problems such as installation; Require in-filled block that self-heat conserving performance preferably will be arranged when particularly being applied to framework (cutting) structure, need to guarantee the designing requirement of building energy conservation with B05 level air-entrained concrete building block.But its production requirement is high, yield poorly, cost is high, and a lot of areas can not produce this product, cause this way of gas concrete self thermal and insulating performance of utilizing to be difficult to carry out.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned prior art, provide a kind of simplify construction, safety firmly, high insulating effect, economical and practical LJS framework (cutting) cast-in-place concrete heat-preservation exterior sheathing and job practices.
The present invention can reach through following measure:
A kind of LJS-framework (cutting) cast-in-place concrete heat-preservation exterior sheathing; It is characterized in that being provided with base material is B level (B1, B2) XPS warming plate (also can adopt A level phenolic foam plate, closed perlite hydrophobic plate, pearlization microballon plate), and the inner face of warming plate is provided with polymer interface layer and polymer composite mortar layer; The outside is provided with polymer interface layer and polymer composite mortar layer, lays the galvanizing electrowelding net in the polymer composite mortar layer of XPS warming plate outside, and the galvanizing electrowelding net is connected with the warming plate face by U type clamp; The polymer interface layer is made up of cement, coal powder and renewable rubber powder, and the percentage by weight of each composition is cement 40%-50%, coal powder 45%-55% and renewable rubber powder 3%, and thickness is 1-3mm; The polymer composite mortar is made up of cement, supporting material, compound heat-insulation aggregate, short fiber, hydrophober, thickener, renewable rubber powder, slag sand, and the weight ratio of each composition is: cement 250-350 part, supporting material 120-200 part; Compound heat-insulation aggregate 160-200 part, short fiber 0.5-2.0 part, hydrophober 0.2-1.5 part; Thickener 0.5-2.0 part; Renewable rubber powder 5-10 part, slag sand 300-400 part, described supporting material is calcium sulfate, shepardite; Wherein calcium sulfate is 60 parts, 100 parts of shepardites.
XPS warming plate inner face polymer composite mortar layer thickness according to the invention is 3-5mm, and outside polymer composite mortar layer thickness is 7-10mm, U type clamp general employing 3-5/m is set 2, the hot-galvanized steel twine directly is 0.9-2mm, specification is 12.5-50*12.5-50mm.
Job practices of the present invention is:
One; Make LJS framework (cutting) cast-in-place concrete heat-preservation exterior sheathing; Choosing base material is B level (B1, B2) XPS warming plate (also can adopt A level phenolic foam plate, closed perlite hydrophobic plate, pearlization microballon plate), smears after the inner face spraying polymer interface agent of warming plate and puts the thick polymer composite mortar of common about 3-5mm; Lay the galvanizing electrowelding net and be fixed in the warming plate face after the agent of outside spraying polymer interface, smear in the above then and put the thick polymer composite mortar of about 7-10mm with U type clamp,
Two, building main body reinforcing bar binding finishes qualified by inspection back at reinforcing bar outside colligation spacer; To guarantee that it has enough toppings; Row's Board position of then confirming according to design size ejects the installation and control line of insulation exterior sheathing; Installation also uses connector to be connected with the main body reinforcing bar, after the insulation exterior sheathing installs, inner formword (punching block or Bamboo and wood veneer board mould) is installed; With split bolt inner and outer template is socketed; Stupefied the making it of primary and secondary is installed in the inner and outer template outside at last fixes and make it to reach construction requirement through adjustment, LJS-framework (cutting) cast-in-place concrete heat-preservation exterior sheathing has promptly been accomplished the effect of alternative exterior sheathing and has been begun heat insulation function after concrete pouring is accomplished.
The present invention adopts B level (B1, B2) XPS warming plate (or A level phenolic foam plate, closed perlite hydrophobic plate, glass bead plate) not only to satisfy the needs of thermal property but also lays because of its higher apparent density in addition and smears polymer composite mortar, the galvanizing electrowelding net of putting; Make self intensity be enhanced; Satisfy and bear the needs of concreting lateral pressure, reach the purpose of instead of steel template bamboo glue pattern plate; The polymer interface agent of plate face spraying has strengthened the stretching adhesive strength of XPS warming plate and polymer composite mortar, and then increases the adhesion of insulation exterior sheathing and main wall body.Thereby the long leg position of plate has been offered to splice between plate to seize between mouthful assurance plate and has been connected tightly compact.
Advantageous effect of the present invention is following:
1 because adopt combustibility B level (B1, B2) XPS warming plate (or A level phenolic foam plate, closed perlite hydrophobic plate, pearlization microballon plate) so and plate bread wrap up in polymer cement mortar and in storage, construction use, good fire savety arranged.
2 will be incubated with cast with the exterior sheathing function in one, and then further simplify working procedure, reduced material and construction cost.
The apparent density of 3 LJS-framework (cutting) cast-in-place concrete heat-preservation exterior sheathings is less than 25kg, and template its cost of production for this reason simple in structure is low, good economy performance; And be beneficial to carrying and use installation.
4 templates have designed to splice between plate seizes mouth, is not easy to take place the slurry problem of overflowing when making concreting; In insulation layer, do not produce slit cold (heat) bridge phenomenon.
5 LJS-framework (cutting) cast-in-place concrete heat-preservation exterior sheathings have several kinds of different-thickness to sit in the right seat according to designing requirement; Make beam column, shear wall position and infilled wall on same plane; Put LJS-C type steam-pressing aero-concrete composite mortar and promptly reach and remedy the in-filled block thermal property through smearing; The temperature transition layer that again shearing position and infilled wall outside has been had one deck homogeneity has reduced the thermal (temperature difference) stress that the difference because of material produces.
Description of drawings
Fig. 1 is that the compound A level of LJS-B level dedicated mortar insulation exterior sheathing edges of boards are seized a mouthful sketch map.
Fig. 2 is LJS-framework (a cutting) cast-in-place concrete heat-preservation exterior sheathing splicing organigram.
Fig. 3 is LJS-framework (cutting) cast-in-place concrete heat-preservation exterior sheathing and filling masonry crossed node organigram.
Mark among the figure: insulation layer 1, polymer interface layer 2, polymer composite mortar layer 3, galvanizing electrowelding net 3a, U type clamp 3b, beam 4, coupling bar 5, concrete block 6, decorative layer 7.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
As shown in the figure, base material is B level (B1, B2) XPS warming plate (also can adopt A level phenolic foam plate, closed perlite hydrophobic plate, pearlization microballon plate).Smear after the inner face spraying polymer interface agent of warming plate and put the thick polymer composite mortar of about 3-5mm; Lay the galvanizing electrowelding net and be fixed in the warming plate face after the agent of outside spraying polymer interface with U type clamp.Smear in the above then and put the thick polymer composite mortar of about 7-10mm.U type clamp general employing 3-5/m is set 2, the hot-galvanized steel twine directly is 0.9-2mm, and specification is 12.5-50*12.5-50mm, and the polymer composite mortar is made up of cement, supporting material, compound heat-insulation aggregate, short fiber, hydrophober, thickener, renewable rubber powder, slag sand; The weight ratio of each composition is: cement 250-350 part, supporting material 120-200 part, compound heat-insulation aggregate 160-200 part; Short fiber 0.5-2.0 part, hydrophober 0.2-1.5 part, thickener 0.5-2.0 part; Renewable rubber powder 5-10 part, slag sand 300-400 part, described supporting material is calcium sulfate, shepardite; Wherein calcium sulfate is 60 parts, 100 parts of shepardites, and the polymer interface layer is made up of cement, coal powder and renewable rubber powder; The percentage by weight of each composition is cement 40%-50%, coal powder 45%-55% and renewable rubber powder 3%, and thickness is 1-3mm.
Job practices of the present invention is: when the main body reinforcing bar binding finish qualified by inspection after in the reinforcing bar outside colligation spacer; To guarantee that it has enough toppings; Row's Board position of then confirming according to design size ejects the installation and control line of insulation exterior sheathing; Installation also uses connector to be connected with the main body reinforcing bar, after the insulation exterior sheathing installs, inner formword (punching block or Bamboo and wood veneer board mould) is installed; With split bolt inner and outer template is socketed; Install in the inner and outer template outside at last that primary and secondary is stupefied to be made it fixing and make it to reach construction requirement through adjustment, the effect that LJS-framework (cutting) cast-in-place concrete heat-preservation exterior sheathing has promptly been accomplished alternative exterior sheathing after concrete pouring is accomplished has begun heat insulation function.
The present invention adopts B level (B1, B2) XPS warming plate (or A level phenolic foam plate, closed perlite hydrophobic plate, pearlization microballon plate) not only to satisfy the needs of thermal property as base material but also lays because of its higher apparent density in addition and smears polymer composite mortar, the galvanizing electrowelding net of putting; Make self intensity be enhanced; Satisfy and bear the needs of concreting lateral pressure, reach the purpose of instead of steel template bamboo glue pattern plate; The polymer interface agent of plate face spraying has strengthened the stretching adhesive strength of base material XPS warming plate (or A level phenolic foam plate, closed perlite hydrophobic plate, pearlization microballon plate) and polymer composite mortar, and then increases the adhesion that is incubated exterior sheathing and main wall body; Offered between plate splicing in the long leg position of plate and seized and mouthful guarantee to be connected compact tight, slurry, no slit cold bridge do not overflow.
The performance requirement of LJS-framework (cutting) cast-in-place concrete heat-preservation exterior sheathing:
Permissible variation in dimension (the: ㎜ of unit)
The polymer composite mortar

Claims (4)

  1. A LJS-framework, cut the cast-in-place concrete heat-preservation exterior sheathing, it is characterized in that being provided with warming plate, the inner face of warming plate is provided with polymer interface layer and polymer composite mortar layer; The outside is provided with polymer interface layer and polymer composite mortar layer, lays the galvanizing electrowelding net in the polymer composite mortar layer of warming plate outside, and the galvanizing electrowelding net is connected with the warming plate face by U type clamp; The polymer interface layer is made up of cement, coal powder and renewable rubber powder, and the percentage by weight of each composition is cement 40%-50%, coal powder 45%-55% and renewable rubber powder 3%, and thickness is 1-3mm; The polymer composite mortar is made up of cement, supporting material, compound heat-insulation aggregate, short fiber, hydrophober, thickener, renewable rubber powder, slag sand, and the weight ratio of each composition is: cement 250-350 part, supporting material 120-200 part; Compound heat-insulation aggregate 160-200 part, short fiber 0.5-2.0 part, hydrophober 0.2-1.5 part; Thickener 0.5-2.0 part; Renewable rubber powder 5-10 part, slag sand 300-400 part, described supporting material is calcium sulfate, shepardite; Wherein calcium sulfate is 60 parts, 100 parts of shepardites.
  2. 2. a kind of LJS-framework according to claim 1, cut the cast-in-place concrete heat-preservation exterior sheathing, it is characterized in that warming plate inner face polymer composite mortar layer thickness is 3-5mm, outside polymer composite mortar layer thickness is 7-10mm.
  3. 3. a kind of LJS-framework according to claim 1, cut the cast-in-place concrete heat-preservation exterior sheathing, it is characterized in that the general employing 3-5 of being provided with of U type clamp/m 2, the hot-galvanized steel twine directly is 0.9-2mm, specification is 12.5-50*12.5-50mm.
  4. 4.LJS framework, the job practices of cutting the cast-in-place concrete heat-preservation exterior sheathing is characterized in that step is:
    One, make the LJS framework, cut the cast-in-place concrete heat-preservation exterior sheathing, choosing base material is B level XPS warming plate, smears after the inner face spraying polymer interface agent of warming plate and puts the thick polymer composite mortar of about 3-5mm; Lay the galvanizing electrowelding net and be fixed in the warming plate face after the agent of outside spraying polymer interface, smear in the above then and put the thick polymer composite mortar of about 7-10mm with U type clamp,
    Two, building main body reinforcing bar binding finishes qualified by inspection back at reinforcing bar outside colligation spacer; Then row's Board position of confirming based on design size ejects the installation and control line of insulation exterior sheathing; Installation also uses connector to be connected with the main body reinforcing bar; After the insulation exterior sheathing installs, inner formword is installed; With split bolt inner and outer template is socketed; Install in the inner and outer template outside at last that primary and secondary is stupefied to be made it fixing and make it to reach construction requirement through adjustment, after the concrete cast is accomplished the LJS-framework, cut the cast-in-place concrete heat-preservation exterior sheathing and promptly accomplished the effect of alternative exterior sheathing and begun heat insulation function.
CN201210056585XA 2012-03-06 2012-03-06 LJS (Longjishi) frame-shear cast-in-place concrete exterior form and construction method thereof Pending CN102561558A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102747790A (en) * 2012-07-13 2012-10-24 上海英硕聚合材料股份有限公司 Inorganic light insulating mortar composite XPS (Extruded Polystyrene) insulating board and preparation method thereof
CN103243827A (en) * 2012-09-19 2013-08-14 威海隆济时节能科技有限公司 Composite heat-insulating superimposed sheet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102747790A (en) * 2012-07-13 2012-10-24 上海英硕聚合材料股份有限公司 Inorganic light insulating mortar composite XPS (Extruded Polystyrene) insulating board and preparation method thereof
CN103243827A (en) * 2012-09-19 2013-08-14 威海隆济时节能科技有限公司 Composite heat-insulating superimposed sheet

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Application publication date: 20120711