CN103003502B - The external heat insulating wall of mechanically-anchored grid reinforcing rib warming plate - Google Patents

Abstract

A kind of external heat insulating wall using mechanical fastening system anchored grid reinforcing rib warming plate.It is to utilize levelling to double as binder course on base course wall, is first adhesive on the wall before screed-coat is dried by the grid reinforcing rib warming plate of insulation, rise auxiliary connect, stabilization, it is ensured that the flatness of warming plate.Then use plastic expansion anchoring bolt that grid reinforcing rib warming plate is directly anchored on base course wall in the boring of plate face, make the whole load of outer heat preservation system be born by fixing crab-bolt completely and be transferred on base layer structure body of wall.Base course wall screed-coat load can be played auxiliary stabilization by the organic assembling of crab-bolt and grid reinforcing rib warming plate simultaneously.Therefore, this invention external heat insulating wall is particularly suited for existing building external-wall external-insulation energy-saving improvement project, and the bearing capacity that can preferably solve the old basic unit of exterior wall is poor, the technical barrier of surface difficult treatment.

Description

The external heat insulating wall of mechanically-anchored grid reinforcing rib warming plate

Technical field

The present invention relates to protect outside the exterior wall of a kind of mechanical fastening system anchored grid reinforcing rib warming plate Temperature body of wall, is particularly suited for the reducing energy consumption engineering of existing building exterior wall.

Background technology

Existing mechanical anchor warming plate external heat insulating wall is combined by base course wall and warming plate Combined wall.Because tensile strength and the rupture strength of warming plate are relatively low, it is usually and uses steel wire or glass Fibrous mesh cloth carries out surface reinforcement, and this detailing requiments is when fixing warming plate, and steel wire must be with guarantor Temperature adds pad between plate surface, makes to exist between steel wire and warming plate a certain distance；Use anchor simultaneously Steel wire and warming plate are directly anchored on structure wall by firmware, and then put on powder 20mm in steel wire both sides Thick screed-coat.Or when using fiberglass gridding cloth to strengthen, first granted full one layer of polymeric mortar levelling Layer, imbeds fiberglass gridding cloth screed-coat, then criticizes one layer of polymeric cracking resistance sand at grid cloth surface powder Slurry.It addition, patent document CN101806105A discloses a kind of mechanically anchored metal mesh reinforced polystyrene boards External heat insulating wall, on base course wall, have levelling binder course, metal mesh reinforced the most successively Styrofoam, plastic expansion anchoring bolt, thin-coat plaster protection surface layer, finish coat, is characterized in that: at basic unit's wall The levelling binder course of granted full polymer mortar on face, will accompany bidirectional metal grid reinforcing rib simultaneously in top layer Styrofoam be adhesive on the wall formation tight heat-insulation layer, then plate face boring install plastic expansion anchoring bolt, Metal mesh reinforced polystyrene boards is directly anchored on base course wall；Screed-coat on base course wall and combination Layer one-shot forming, the polymer mortar thickness of levelling double binder course is 3～9mm, goes up wall bonding insulation simultaneously With metal mesh reinforced polystyrene boards, laying method is that rectangular slab is transversely arranged, perps should the fissure of displacement line by line, Good fissure of displacement spacing is 400mm, 600mm modulus；Longitudinal steel wire and transverse steel wire is accompanied in styrofoam top layer The reinforcement that right-angled intersection electric welding connects, a length of the 800 of plate～2400mm, optimum length is 900～1600mm, width is 400～1600mm, and optimum width is 600～1200mm；Plastic expansion anchoring bolt Anchoring spacing be 200～450 × 200～450mm, optimal anchoring spacing is 300～400 × 300～400mm, effective anchorage depth >=25mm of crab-bolt；This metal mesh reinforced polystyrene boards and the group of crab-bolt Close rupture strength and the stability substantially increasing heat-insulation layer.

But owing to the peel strength of warming plate is relatively low, the way of above-mentioned increase screed-coat will directly be led The load causing exterior-wall heat insulation board finish increases, and additionally steel wire or fiberglass gridding cloth site operation are easy The defects such as the off normal produced and out-of-flatness, may give whole external heat insulating wall, stay quality and safety steady Hidden danger qualitatively.In order to ensure the security of external thermal insulation system, The Ministry of Construction of the People's Republic of China, MOC " external wall outer insulation engineering code " (JGJ144-2004) that on January 13rd, 2005 is issued discloses: " the 2.0.1 article regulation, external thermal insulation system is (gluing by heat-insulation layer, protective layer and fixing material Agent, anchoring piece etc.) constitute and be suitably mounted to exterior wall outer surface non-bearing heat-preserving structure general name "； " 2.0.1 provision explanation regulation, from the point of view of design viewpoint, outer heat preservation system can be divided by fixing means As follows: 1 simple bonding system system can use full patch (being paved with whole surface), bar formula bonding or Point type bonds；2 additional are born by tack coat completely with the bonding system load being mechanically fixed, machine Tool is fixed on before adhesive is dried and plays stabilization, and as connecting in case anti-avulsion is opened temporarily, they Also stabilization can be played under fire condition；3 is complete to be bonded as the mechanical fixation system load of auxiliary Entirely being born by mechanical fastening system, bonding is for ensureing flatness when system is installed；4 is simple Mechanical fixation system system is only fixed on wall with mechanical fastening system "；" the 2.0.9 article regulation, EPS Plate is by hot briquetting and prepared tool in a mold after the heated prefoam of expandable polystyrene bead There is the polystyrol plastic foam plate material of hole-closing structure ".And according to The Ministry of Construction of the People's Republic of China, MOC 2003 " expansion joints bellows external thermal insulation system " JG149-2003 the 5.3rd that on March 24, in is issued Bar specifies: " expansion polyphenyl plate should be flame retardant type ".In July, 2009 Beijing that Chemical Industry Press publishes 1st edition " the Building Fire Protection Materials Handbook " write by Zhu Chunling, Ji Guangqi discloses: " polystyrene { PS} resin has that excellent processing characteristics, mechanical characteristic, and product size be stable, outside matrix band Seeing beautiful, cheap, therefore its consumption is very big, is one of the principal item of thermoplastic resin " (in detail See page 185 inverse the 11st～10 row, i.e. the combustibility of thermoplasticity styrofoam only reaches GB8624-2006 The B2 level combustible material standard of regulation)；" matrix polymer (resin) of thermosetting plastics mainly includes Polyurethane resin, epoxy resin, phenolic resin and unsaturated polyester resin " (refer to page 248 3～4 row, the i.e. combustibility of thermoset polyurethane plate and phenolic board can reach GB8624-2006 regulation B1 level nonflammable material standard)；" combustibility without the block of glass wool of outer covering layer should reach A level in GB8624-1997 " (referring to page 515 inverse the 7th row)；" rock cotton board is based on rock wool Want raw material, then through adding a kind of tabular fireproof thermal insulating products that a small amount of adhesive processes " (in detail See page 520 inverse the 2nd row)；" mineral wool is also known as mineral wool " (refers to page 524 the 17th row), " ore deposit Cotton plate is a kind of novel light thermal insulation fire-proof board " (referring to page 525 the 1st row)；" expanded pearlite Rock beam is the expansion pearlite thermal insulation product of a kind of tabular.It is to be main aggregate with expanded perlite, And after filling different kind adhesives, agitated, be molded, be dried, roasting or maintaining process and make A kind of noninflammability (GB8624-1997) sheet material become " (refer to page 532 inverse the 14th～13 row, i.e. The flammability of inorganic heat insulation material rock cotton board, block of glass wool, mineral wool board and Modified expanded perlite plate Can all reach the A2 level incombustible material standard that GB8624-2006 specifies).The Ministry of Public Security of the People's Republic of China, MOPS, House and town and country construction portion combine " civil buildings outer heat preservation system and the exterior wall of issue on September 25th, 2009 Decorative fireproof temporary provisions " (public logical word [2009] 46) regulation: " protect outside Article 1 civil buildings The combustibility of adiabator is preferably A level "；" Article 4 non-curtain wall type building should meet the following requirements, (1) ... 2. residential housing is highly less than the building of 100M, the burning of its insulation material more than or equal to 60M Performance is not lower than B2 level.When using B2 level insulation material, every layer should arrange horizontal fire-blocking belt "； " when Article 6 needs to arrange fire-blocking belt by this regulation, width should be set along floor location and be not less than The A level insulation material of 300mm " (i.e. require that external wall outer insulation material newly-built, reconstruction project is recommended to make With the incombustible material that combustibility is A level, must not use combustible material without exception, strict restriction uses flammable Material).It addition, People's Republic of China's house and town and country construction portion ratified on July 16th, 2010 National building standard design atlas " outer heat preservation construction structure for external wall " (10J121) discloses: " subordinate list 1 Warming plate performance requirement (EPS, XPS, PUR plate) tensile strength >=0.10MPa (refers to: annex 2-1 Page) "；" rock wool external insulating system for thinly plastered external wall, the practice of current domestic project is the fewest and domestic many The product of number rock wool manufacturing enterprise does not reaches the requirement of rock wool external insulating system for thinly plastered external wall, have impact on The development at home of rock wool outer wall outer heat preservation system.This annex rock wool external insulating system for thinly plastered external wall Structure way mainly according to Europe three practical experience during the last ten years and relevant criterion, in conjunction with domestic on a small quantity Engineering practice and experimental study are worked out.It should be noted that be when selecting this heat-insulation system in engineering project The each side such as system design, material property, construction all should meet the requirement of this atlas, and formulates specific technique Scheme and acceptance method, the special demonstration of tissue "；" rock wool has and does not fire (combustibility is A level), molten Point is high, it is nontoxic smokeless in the case of fire to meet and the feature such as thermal conductivity factor is low, saturating vapour, Europe rock wool External insulating system for thinly plastered external wall is widely used in school, hospital, skyscraper etc. and is important to fire prevention The External Thermal Insulation System asked "；" classification of table 5 rock wool and main performance index: combustibility A level；Compressive strength >=40KPa；Rock cotton board (fibers parallel is in metope) is perpendicular to the tension on surface Intensity >=7.5KPa；Rock wool belt (fiber is perpendicular to metope) is perpendicular to the tensile strength >=80KPa on surface " (for details, see the appendix 3-1～page 3, it is strong that this shows that current existing inorfil rock-wool heat insulation plate exists tension The defect that degree is all much lower than organic foam warming plate with compression strength, needs to improve, improve).Therefore, It is necessary to improve structure and the fixing means of external wall insulation.

Summary of the invention

In order to overcome existing mechanical anchor warming plate external heat insulating wall to use anchoring piece and steel wire or glass Glass fibrous mesh cloth fixing means may produce quality and the deficiency of security and stability hidden danger, and the present invention provides The external heat insulating wall of a kind of mechanical fastening system anchored grid reinforcing rib warming plate, this external heat insulating wall is not It is only capable of solving to increase quality and the problem of security and stability that screed-coat load may cause, and can be substantially Improve the tensile strength of warming plate and rupture strength.It addition, construction technology is simple, quick.

The technical solution adopted for the present invention to solve the technical problems is: on base course wall surface, and granted full is gathered Compound mortar, as levelling double binder course, will accompany the warming plate of Two-way Network lattice reinforcement simultaneously in top layer, It is bonded in immediately on metope, it is ensured that the flatness of warming plate.Warming plate is rock-wool heat insulation plate, mineral wool guarantor Temperature plate, mineral wool warming plate, polyurethane thermal insulation board, phenolic-aldehyde heat-insulation board or modified expanded perlite insulation board, It is processed into by prefabrication.As required, the material of grid reinforcing rib is that bidirectional glass fiber grid adds Strong muscle, metallic steel screen grid reinforcement or chemical fibre grid reinforcement.Then mould plate face is boring Grid reinforcing rib warming plate is directly anchored on base layer structure body of wall by material expansion anchor.Finally add at grid The outer surface of strong muscle warming plate is thin smears protection surface layer anticracking grout and roller coating facing coating elastic coating.Above-mentioned The thickness of levelling double binder course polymer mortar is 3～9mm, meets the levelling and needs of bonding thickness.On State the spacing of the mechanical fastening system plastic expansion anchoring bolt that vertical, horizontal is arranged in parallel be 200～450 × 200～450mm, optimal spacing is 250～400 × 250～400mm, crab-bolt quantity every square metre >=8, Effective anchorage depth >=25mm of crab-bolt, optimal anchorage depth is 35～45mm；Crab-bolt diameter >=8mm, single Individual crab-bolt tensile bearing capacity standard value >=0.6KN, the plastic disc small opening pressing plate diameter of crab-bolt outer end >= 60mm, to ensure the stability of warming plate.

The external heat insulating wall of above-mentioned mechanically-anchored grid reinforcing rib warming plate, is characterized in that: at base course wall The levelling double binder course of upper granted full polymer mortar；The insulation of Two-way Network lattice reinforcement will be accompanied in top layer simultaneously Plate is bonded on base course wall, forms tight heat-insulation layer, and paving is that rectangular slab is transversely arranged, and perps should The fissure of displacement line by line；Then at the plastic expansion anchoring bolt of plate face boring mounting end band plastic disc small opening pressing plate, Grid reinforcing rib warming plate is directly anchored on base course wall.

Beneficial effects of the present invention: the outer guarantor fixing with existing warming plate employing anchoring piece and steel wire Temperature body of wall is compared, and levelling for basic unit and warming plate auxiliary sticking can once be completed by levelling double binder course, Reduce working procedure and duration；Use mechanical fastening system anchored grid reinforcing rib warming plate, work of constructing Skill simplify after cost reduce, easy to operate, construction quality is easily controllable；This grid reinforcing rib warming plate Combination with crab-bolt substantially increases the tensile strength of heat-insulation layer, rupture strength and stability.The present invention It is particularly suited for the reducing energy consumption of existing building external wall outer insulation, can efficiently solve because of the old basic unit of body of wall The not enough defect of the adhesion strength that flake in local, crackle or surface contamination barrier film etc. bring, to former There is basic unit can play reinforcement, a protective effect, improve its stability.

Summary of drawings

The specific features of the present invention, performance are given further by below example and accompanying drawing thereof.

Fig. 1 is the structural representation of the present invention.Fig. 2 is the longitudinal profile structural map of Fig. 1.Fig. 3 is machinery The positive elevational schematic view of anchored grid reinforcing rib warming plate.

In figure: 1. base course wall, the most levelling double binder course, 3. grid reinforcing rib warming plate, 4. mould Material expansion anchor, 5. thin-coat plaster protection surface layer, 6. finish coat.

The preferred forms of the present invention

In FIG, the external heat insulating wall of the present invention, the most successively by base course wall 1, levelling double knot Close layer 2, grid reinforcing rib warming plate 3, plastic expansion anchoring bolt 4, thin-coat plaster protection surface layer 5 and finish coat 6 Composition.Base course wall 1 can be concrete wall, wall of aerated concrete block, solid brick body of wall, Hollow brick wall or light cement sand blockwork.Grid reinforcing rib warming plate 3 is by warming plate and its plate Grid reinforcing rib composition in top layer, face, warming plate is rock-wool heat insulation plate, glass wool thermal insulation board, mineral wool Plate, polyurethane thermal insulation board, phenolic-aldehyde heat-insulation board or modified expanded perlite insulation board；Grid reinforcing rib is glass Glass fiber mesh reinforcement, metallic steel screen grid reinforcement or chemical fibre grid reinforcement, metal steel wire Grid reinforcing rib is to be formed by connecting by longitudinal steel wire and transverse steel wire right-angled intersection electric welding, glass fibre or change Learning fiber mesh reinforcement is by glass fibre or the warp of chemical fibre and parallel right-angled intersection woollen yarn knitting Become；As required, grid reinforcing rib can be two-sided setting, one side setting.Plastic expansion anchoring bolt 4 can To be percussive crab-bolt, spiral crab-bolt, plastic bushing and disk small opening pressing plate can be polyamide, gather Ethene, polypropylene material are made.Thin-coat plaster protection surface layer 5 is by Crack-resistance Front Mortar and alkali-resistant glass fibre Grid cloth forms.Finish coat 6 is made up of investment precoat and overlay coating.

In fig. 2, the granted full thickness of levelling double binder course 2 polymer mortar is 3～9mm, to base course wall 1 Time levelling, should synchronize to be adhesive on the wall grid reinforcing rib warming plate 3, and make the reinforcement face, top layer of warming plate Outside wall.After the adhesion strength >=0.06MPa of levelling double binder course, use plastics swollen in the boring of plate face Grid reinforcing rib warming plate 3 is anchored on base course wall 1 by expansion anchor bolt 4, and effective anchorage depth of crab-bolt should >=25mm, optimal anchorage depth is 35～45mm；Crab-bolt diameter >=8mm, plastic disc small opening pressing plate diameter >= 60mm, optimum diameter is 65～95mm.Then thin-coat plaster is protected surface layer 5 smear criticize in grid reinforcing rib insulation On plate 3, and palpus plastic covering expansion anchor 4, to protect heat-insulation layer；Thin-coat plaster protection surface layer 5 uses poly- Compound anticracking grout, is sandwiched between strengthening net, plays anticracking, waterproof and shock proof effect.Finish coat 6 brushings, on thin-coat plaster protection surface layer 5, use flexible putty, elastic surface layer coating and elastic covering coating materials Construction in layer.

In the embodiment shown in fig. 3, the laying method of grid reinforcing rib warming plate 3 is that rectangular slab is laterally arranged Row, perps should the fissure of displacement, fissure of displacement spacing >=250mm line by line, optimal fissure of displacement spacing is 300mm, 400mm modulus, To give full play to the anchorage effect of junction of the edges of two sheets of paper crab-bolt.A length of the 800 of grid reinforcing rib warming plate～2400mm, Optimum length is 900～1600mm, and width is 400～1600mm, and optimum width is 600～1200mm.Plastics Being arranged as in plate of expansion anchor 4 adds nail combine with plate seam, the anchoring spacing that vertical, horizontal is arranged in parallel Being 200～450mm × 200～450mm, optimal anchoring spacing is 250～400mm × 250～400mm.Every side plate Crab-bolt quantity >=3 of side seam, spacing≤400mm, four corners of plate all should arrange crab-bolt, crab-bolt number Measure every square metre >=8, to guarantee the stability of grid reinforcing rib thermal insulation layer of thermal insulation board.

In order to improve building energy conservation and fire-proof function, the present invention can according to the different needs of building, The grid reinforcing rib warming plate selecting different performance is constructed.Outside for the building of below height 18m Wall external thermal insulation can select the heat curing-type grid reinforcing rib polyurethane of thermal conductivity factor≤0.027w/ (m.k) Warming plate or phenolic-aldehyde heat-insulation board.For the external wall external thermal insulation of more than height 18m, A can be selected Level incombustible material gridding strengthening rib rock wool warming plate, glass wool thermal insulation board, mineral wool warming plate or modification Expanded perlite thermal-nsulation plate.Above-mentioned several different materials can also be combined, select A level not Combustion warming plate, as exterior wall fireproof isolation strip, is prevented along door and window, hole and surrounding yin, yang corner etc. Fire point storehouse is arranged, stops flame to be propagated, prevents fire spread, it is ensured that the use safety of building.

Claims (2)

1. an external heat insulating wall for mechanically-anchored grid reinforcing rib rock-wool heat insulation plate, on base course wall, There is levelling double binder course, gridding strengthening rib rock wool warming plate, plastic expansion anchoring bolt, thin the most successively Plaster and protect surface layer, finish coat, it is characterized in that: granted full thickness is the polymerization of 3～9mm on base course wall Thing mortar levelling is held concurrently binder course, levelling for basic unit and rock-wool heat insulation plate auxiliary sticking is once completed, it is ensured that rock The flatness of cotton warming plate；The rock-wool heat insulation plate accompanying Two-way Network lattice reinforcement in top layer is bonded in simultaneously On base course wall, and make the top layer reinforcement of rock-wool heat insulation plate face outside wall, form tight heat-insulation layer, paving Patch is transversely arranged for rectangular slab, perps should the fissure of displacement line by line, fissure of displacement spacing is 300mm, 400mm modulus；So Rear employing mechanical fastening system plastic expansion anchoring bolt anchored grid reinforcing rib rock-wool heat insulation plate, holes in plate face The plastic expansion anchoring bolt of mounting end band plastic disc small opening pressing plate, by straight for gridding strengthening rib rock wool warming plate Connect and be fixed on base course wall；Thin-coat plaster is finally protected surface layer smear criticize at gridding strengthening rib rock wool warming plate On, and palpus plastic covering expansion anchor, to protect heat-insulation layer, thin-coat plaster protection surface layer uses polymer to resist Split mortar, be sandwiched between strengthening net, play anticracking, waterproof and shock proof effect, this grid reinforcing rib Rock-wool heat insulation plate improves the tensile strength of heat-insulation layer, rupture strength and stability with the combination of crab-bolt, uses When existing building external wall outer insulation carries out reducing energy consumption, is flaked in the local of original basic unit, crackle or table The defect that the adhesion strength that surface pollution barrier film brings is not enough, plays reinforcement, a protective effect；Described The grid reinforcing rib of gridding strengthening rib rock wool warming plate be the warp by glass fibre or chemical fibre and Parallel right-angled intersection woollen yarn knitting forms, or grid reinforcing rib is by longitudinal steel wire and transverse steel wire right-angled intersection electricity Weldering is formed by connecting；A length of the 800 of gridding strengthening rib rock wool warming plate～2400mm, width is 400～1600mm；Being arranged as in plate of plastic expansion anchoring bolt adds nail combine with plate seam, and vertical, horizontal is put down The anchoring spacing that row is arranged is 200～450 × 200～450mm, crab-bolt quantity every square metre >=8, every side Crab-bolt quantity >=3 of edges of boards seam, spacing≤400mm, four corners of plate all should arrange crab-bolt；Mould Material expansion anchor diameter >=8mm, single crab-bolt tensile bearing capacity standard value >=0.6KN, crab-bolt end Diameter >=the 60mm of plastic disc small opening pressing plate, effective anchorage depth >=25mm of crab-bolt；Basic unit's wall Body is concrete wall, wall of aerated concrete block, solid brick body of wall, hollow brick wall or lightweight water Silt particle blockwork.

The external thermal insulation wall of mechanically-anchored grid reinforcing rib rock-wool heat insulation plate the most according to claim 1 Body, is characterized in that: a length of 900～1600mm, width of described gridding strengthening rib rock wool warming plate It is 600～1200mm；The anchoring spacing that plastic expansion anchoring bolt vertical, horizontal is arranged in parallel is 250～400 × 250～400mm, a diameter of the 65～95mm of the plastic disc small opening pressing plate of crab-bolt end, having of crab-bolt Effect anchorage depth is 35～45mm.