CN101831985B - Precast concrete wallboard and preparation method thereof - Google Patents

Precast concrete wallboard and preparation method thereof Download PDF

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Publication number
CN101831985B
CN101831985B CN2010101915438A CN201010191543A CN101831985B CN 101831985 B CN101831985 B CN 101831985B CN 2010101915438 A CN2010101915438 A CN 2010101915438A CN 201010191543 A CN201010191543 A CN 201010191543A CN 101831985 B CN101831985 B CN 101831985B
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China
Prior art keywords
topping
deck
reinforcement
concrete panel
sleeve
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CN2010101915438A
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Chinese (zh)
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CN101831985A (en
Inventor
秦珩
李建树
张景明
周松
刘国权
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北京万科企业有限公司
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Priority to CN2010101915438A priority Critical patent/CN101831985B/en
Publication of CN101831985A publication Critical patent/CN101831985A/en
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Publication of CN101831985B publication Critical patent/CN101831985B/en

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Abstract

The invention relates to a precast concrete wallboard and a preparation method thereof. A wall body has a structural layer and a protection layer from inside to outside, wherein the structural layer is internally provided with a reinforcement cage, and a reinforcement fabric is arranged in the concrete of the protection layer; the protection layer is connected with the structural layer through a transverse connecting reinforcement connected to the reinforcement fabric; the left edge and the right edge of the protection layer protrude out of the structural layer; the lower edge of the protection layer downwards extends out of a protruded port; and the top of the protection layer upwards protrudes out of the structural layer; the upper edge of the protection layer has a dent corresponding to the protruded port of the adjacent precast concrete wallboard on the upper layer; and the two ends of a transverse bar of the reinforcement cage protrudes out of the left side surface and the right side surface of the structural layer of the wall body and form two rows of transverse steel ties bending inwards. The wallboard has the advantages that the construction process is simplified, the construction speed is accelerated, and the construction cost is reduced. Meanwhile, products precast by a factory have uniform specification and quality, and thus, the construction quality of a building structure can be guaranteed sufficiently. The precast concrete wallboard can be widely applied to construction of concrete steel buildings in building industry.

Description

A kind of precast concrete panel and preparation method thereof
Technical field
The present invention relates to a kind of prefabricated reinforced concrete wallboard and preparation method thereof.
Background technology
The method of cast-in-place concrete is adopted in present dwelling construction; The site operation of exterior wall agent structure generally will pass through and install template, lay reinforcing bar, the placing of concrete working procedure of form removal again; After the exterior wall main structure construction finishes, also to carry out a series of a large amount of loaded down with trivial details work such as outer decorative layer construction and interior decoration construction.The energy consumption that every square metre of dwelling house will cause to be equivalent to 20 kilograms of standard coals, consumption, 3% concrete loss, the loss of 3% steel and the consumption of 0.05 cubic metre of timber of 0.05 cubic metre of water.Rough house generally to adopt is at present handed over the room mode computation, and the client is in fitment process, and each household also can bring the decoration garbage consumption about 2 tons.Each engineering all need use a lot of haulage vehicles that a large amount of building materials are transported to the building site from outside the city, and construction finishes and more a large amount of building wastes transported to outside the city from the building site, and this makes the matter worse original urban traffic of just blocking up very much more.Some defectives below site operation also has: site operation program and complex management, construction cost is bigger; Building waste is more, and project site is difficult for cleaning; The noise of site operation has a strong impact on the live and work of surrounding resident, is unfavorable for the protection of environment; Because receive the influence of factors such as constructional materials, weather conditions, field control, quality of workers, the site operation quality also is not easy to be guaranteed.
The industrialization of construction industry of China was sign with the prestressed hollow slab mainly since the starting seventies in last century at that time, and to the beginning of the eighties, ground such as Beijing are introduced dwelling house and built industrialized significant technology from Eastern Europe---full assembling type large plate structure system.But because the cold bridge heat bridge problem of wallboard seam crossing, surface layer cracking and the problem that comes off, structure load-bearing security problems all are not well solved, therefore, prefabricating technique is not only not prosperous along with upsurge in construction, is tending towards decline on the contrary rapidly.
On August 12nd, 2009, Premier Wen Jiabao held Executive Meeting of the State Council, proposed China first and will cultivate low-carbon economy as new growth point, " greatly develop green economy.The decision and deployment that combining closely expands domestic demand boosts economic growth, cultivating with the low-carbon emission is the new growth engines of characteristic, accelerating to build with the low emission is industry, building, the railway and highway system of characteristic ".Know that therefrom housing industrialization is a kind of inexorable trend, the problem, prefabricated, the site-assembled dwelling house mass production method of a kind of new batch production of research that solve housing industrialization have become the task of top priority.
Summary of the invention
The purpose of this invention is to provide a kind of precast concrete panel and preparation method thereof, solve that the conventional construction method freight volume is big, construction cost is high, construction quality do not guarantee, the serious problem of environment pollution.
For realizing above-mentioned purpose; The present invention adopts following technical scheme: a kind of precast concrete panel, its body of wall order from the inside to the outside have deck and topping, and reinforcing cage is arranged in the deck; In the concrete of topping reinforced mesh is arranged; It is characterized in that: said topping is connected with deck through the horizontal connecting reinforcement that is connected on the reinforced mesh, and the left and right edges of topping protrudes in deck, and the lower limb of topping extends tang downwards; The top of topping projects upwards in deck, and the top edge of topping has the recess corresponding with the tang of the contiguous prefabricated concrete panel in upper strata.
The horizontal bar two ends of said reinforcing cage are stretched out wall body structure layer left and right sides face and are presented two rows inwardly to curved horizontal steel tie; The vertical muscle of reinforcing cage stretches out from wall body structure layer end face; Become the vertical connecting reinforcement that is connected with the contiguous prefabricated concrete panel in upper strata; The bottom of deck is embedded with and the corresponding reinforced bar sleeve of the vertical connecting reinforcement of the contiguous prefabricated concrete panel of lower floor, and the top of said reinforced bar sleeve is fixedly connected with the vertical muscle of reinforcing cage in the deck, on the reinforced bar sleeve sidewall of the end that enters the mouth near reinforcing bar, has an injected hole; On the sidewall that comes directly towards an end near reinforced bar sleeve, open slurry outlet; Slurry outlet is connected with the slip casting short tube with the pulp short tube with injected hole, and the medial surface of deck is stretched out in the outer end of pulp short tube and slip casting short tube, also is embedded with the inner thread sleeve perpendicular to the plate face on the medial surface of deck.
Have door and window hole on the said body of wall, build-in has anticorrosion wooden unit on the side of door and window hole, is installed with anchor bar in the anticorrosion wooden unit, an end of anchor bar bend to 45 the degree and be embedded in the deck, the other end bend to 90 the degree and be embedded in the topping.
The lateral surface of said topping can be connected with outer decorative layer, and outer decorative layer is face brick, coating or decorative panel.
Left and right sides face, end face and the bottom surface of said deck is undisguised material matsurface.
The material of said reinforced bar sleeve is a rolled section steel; Profile is drum or prism shape; The tube inwall of reinforced bar sleeve is for all directly or undergauge; Wherein tube inwall one end of the reinforced bar sleeve of undergauge is provided with the screwed hole of undergauge, and screwed hole is threaded with vertical muscle in the deck, and an inwall other end of reinforced bar sleeve is provided with sleeve nose end bulge loop; Tube between said screwed hole and the sleeve nose end bulge loop has a plurality of spaced apart vertically protruding ring ribs on the inwall, is being equipped with groove between the adjacent protruding ring rib and between the two ends of the protruding ring rib at two ends and reinforced bar sleeve.
A kind of preparation method of precast concrete panel is characterized in that: step 1, assembly unit bed die.
Step 2, on bed die, place the topping reinforced mesh.
Step 3, build the topping concrete.
Step 4, before the topping concrete initial set, on the topping concrete, insert horizontal connecting reinforcement.
Step 5, integral body are vibrated, and horizontal connecting reinforcement is combined closely with the topping concrete.
Step 6, a side form.
Step 7, on topping, place reinforcing cage, reinforcing bar suspension ring and inner thread sleeve; Comprise horizontal steel tie, vertical connecting reinforcement on the reinforcing cage; Reinforced bar sleeve is fixedly connected with the deck reinforcing cage, the pulp short tube is fixedly connected with reinforced bar sleeve with the slip casting short tube.
Step 8, pouring structure layer concrete.
Step 9, maintenance.
Step 10, tear side form open, lifting.
In said step 1, also to prop up door-window opening mould plate in the time of the assembly unit bed die, in said step 4, before the topping concrete initial set, on the topping concrete, insert horizontal connecting reinforcement, and place anticorrosion wooden unit and anchor bar.
In said step 2; On bed die, stick earlier two-sided tape; Then with the outer decorative layer surface brick adherence on two-sided tape; And then the reinforced mesh of placement topping, after step 10 finishes, again the film of outer decorative layer tile surface and the dividing strip in the brickwork joint are removed, and sticked at outer decorative layer tile surface and the interior cement paste of seam with cleaning.
In the said step 9; The system of maintenance is quietly to stop, heat up, and constant temperature, cooling respectively are 2 hours, 2 hours, 8 hours and 2 hours, wherein programming rate be controlled at 15 degree/hour; The constant temperature maximum temperature is controlled at 60 degree; Cooling rate be controlled at 10 degree/hour, when wallboard and atmosphere temperature-difference are not more than 15 when spending, remove covering.
After said step 8 finishes; On side, the left and right sides, end face and the bottom surface of deck, be coated with the slow setting interfacial agents; Then after step 10 finishes; Wash away side, the left and right sides, end face and the bottom surface of deck with giant, make side, the left and right sides, end face and the bottom surface of deck become undisguised material matsurface.
Compared with prior art the present invention has following characteristics and beneficial effect: the present invention is prefabricated in the factory the part or all of member of dwelling house and transports to the job site after accomplishing; The job site adopts lifting to install; Member is assembled into integral body through reliable connected mode, helps realizing housing industrialization, overcome the defective of the on-the-spot formwork of traditional form of construction work, assembling reinforcement, concreting;, major structure of construction do not need to carry out again the construction of door and window installation, outside finish after finishing; Simplify working procedure, accelerated speed of application, reduced construction costs.And prefabricate product specification is consistent, and quality is unified, and the construction quality of building structure can access sufficient assurance.
When side fascia of the present invention is prefabricated in the factory; Through the good mould of prior customization, with counter the spreading of ceramic tile of well cutting, concreting overleaf after ceramic tile is completed; Because the coagulation soil pressure builds on ceramic tile, its firm degree be traditional construction technology can not compare.Because ceramic tile and side fascia one-shot forming in factory are compared with traditional method, saved the outer facade finishing duration greatly simultaneously; Not only accelerated the construction period; When guaranteeing safety in production and top quality, saving energy, lowering energy consumption and reducing pollutants discharge greatly reduce building waste, avoid the pollution to environment.The present invention through the building of separate type, changes the mode of concreting through the propelling of housing industrialization process, on building waste, electric energy, water resource, timber, steel, all can bring significantly to change.Suppose 2012; The Chinese Urbanization's process still keeps present speed, and the dwelling construction amount reaches 1,000,000,000 square metres, and the housing industrialization ratio reaches 10%; This means the water yield that using water wisely is equivalent to 10 West Lakes; Reduce power consumption and be equivalent to one month the generated energy in Ge Zhou Ba, reduce deforestation and be equivalent to 9,000 hectares of forests.If the industrialization ratio reaches 20%, will mean the water yield of the West Lake, 20,340 ten thousand cubes=19 Hangzhou of using water wisely, 90.4 ten thousand tons of standard coals of energy efficient=22.6 hundred million degree electric weight=2 months generated energy in power station, pact Ge Zhou Ba; Reduce concrete loss 142.4 ten thousand steres=285 18 layers of dwelling house concrete amounts; Reduce 13.56 ten thousand tons=188 18 layers of dwelling house steel using amount of steel loss, surpass 1 Bird's Nest steel using amount.
The building that adopts the present invention to build, the building that the traditional mode of identical employing with scale is built is in whole building course, and the statistics that its material consumption, energy consumption are carried out is following:
Above data show that the building that adopts the present invention to build is compared with conventional art construction project, has clear superiority aspect material consumption, the energy consumption, is especially achieving noticeable achievement aspect constructional materials consumption and the building waste minimizing.Accelerated the construction period, when guaranteeing safety in production and top quality, saving energy, lowering energy consumption and reducing pollutants discharge greatly, disposable finishing puts in place, reduces decoration garbage, avoids finishing pollution.
The present invention has improved the machining accuracy and the quality of construction wall greatly, has realized industrialization, standardization, the generalization of construction wall, can be widely used in the construction of building trade concrete steel building.The building that has used the present invention to build; Compare in also greatly lifting aspect the quality with the building that traditional handicraft is built; Common and common quality defects such as the seepage that is difficult to effect a radical cure, cracking, hollowing, room-sized deviation almost reduce to zero in traditional handicraft; Practice thrift about 3 months of duration, improved efficiency about 20% than the building of identical construction scope equal height simultaneously.
The present invention adopts embedded bar sleeve+slip casting to connect in the connection of levels precast concrete panel reinforcing bar, pours into the cementation material through the injected hole of cartridges sides, reinforcing bar is built with the grouting material be one, and safety of structure is improved greatly.Injected hole on the reinforced bar sleeve can the joints cement mortar, and slurry outlet can make filling process more smooth and easy.The hole wall of injected hole and slurry outlet is provided with one section screw thread, combines with it when being convenient to Grouting Pipe and being screwed into closely, avoids the grouting material before setting and harden, to flow out metal sleeve.Protruding ring rib and groove on the reinforced bar sleeve tube inwall; Aspect tensile strength, play tangible effect, promptly when the vertical muscle in the deck is received opposing pulling force with vertical connecting reinforcement, produced relative axial force between the cement mortar of microdilatancy and the reinforced bar sleeve tube inwall; Promptly cement mortar is produced systolic pressure radially; Make the cement mortar of microdilatancy encircle vertical connecting reinforcement more tightly, increased the bonding strength of the two greatly, and then increased the tensile strength of joint.
The horizontal steel tie of body of wall of the present invention both sides is changed into the reinforcing bar of open band crotch by the reinforcing bar of former sealing; Because the reinforcing bar of open band crotch random shift position when running into the vertical muscle of dislocation; So the shortcoming of having avoided reinforcing bar to block each other, the speed when having improved the lifting wallboard.
Said inner thread sleeve one end is embedded in the deck, and the other end has three kinds of purposes, and the one,, lifting can be connected when installing with the hook of loop wheel machine; The 2nd, when fixing body of wall; Can connect one to one with the contact of diagonal brace, three are arranged on the deck left and right sides, can be used to connect template; This template is used to build the seam of adjacent two precast concrete panels, is set shaped steel formwork.What inner thread sleeve used is internal thread, is convenient to connect and back-out, and is suitable for hanging out installation after body of wall completes.
Left and right sides face, end face and the bottom surface of said deck is undisguised material matsurface, and it is firmer to make that the present invention is connected with cast-in-place perps, also can prevent this and locate the shrinkage crack that concrete contraction causes this place.
The present invention has the antiseep system, comprises that structure is from waterproof, constructional waterproofing, material waterproofing three parts.Precast concrete panel is vertical seam when contiguous prefabricated concrete panel with one deck is connected, and vertical seam adopts structure from waterproof, and promptly the edge joint position of two blocks of precast concrete panels adopts cast-in-situ concrete to build, and makes it one integrated mass; When precast concrete panel is connected with the contiguous prefabricated concrete panel of levels, be horizontal joint, horizontal joint adopts constructional waterproofing, i.e. all prefabricated tongue and groove in the top of precast concrete panel and bottom, and it is indoor to stop water to flow to; Seam crossing at precast concrete panel and precast concrete panel can also adopt polyethylene foamed plug and waterproof gasket cement etc. to carry out material waterproofing; Can adopt the improvement silicone adhesive such as waterproof gasket cement; Have advantages such as superior cold-resistant, heat-resisting, weather, durability; The motion of adaptation precast concrete panel that can be soft, and can as polyurethane, not receive ultraviolet ray and can make the surface produce cracking.Said vertical seam and horizontal joint are when concreting, and topping has played the effect of exterior sheathing, so need not to set up outboard template, the technology of simplification has been practiced thrift time and cost again.
Window seepage under the traditional method is that the client concentrates the focus of complaining; And the present invention has door and window hole, because side fascia is at produce in factory, the scale error of door and window hole is controlled at the millimeter level; Window is installed accurately, is fitted together perfectly, so fundamentally solved the external window leakage problem with door.But the anticorrosion wooden unit of reserving in the door and window hole of corrosion-resistant can effectively prevent cold bridge, also convenient on-the-spot the installation.
Description of drawings
Below in conjunction with accompanying drawing the present invention is done further detailed explanation.
Fig. 1 is that the master of precast concrete panel embodiment one looks sketch map.
Fig. 2 is that sketch map is looked on the left side of precast concrete panel embodiment one.
Fig. 3 is the elevational schematic view of precast concrete panel embodiment one.
Fig. 4 is the sketch map of A-A section among Fig. 1.
Fig. 5 is the sketch map of precast concrete panel embodiment two.
Fig. 6 is the structural representation of first kind of reinforced bar sleeve.
Fig. 7 sketch map that to be first kind of reinforced bar sleeve be connected with vertical muscle with vertical connecting reinforcement.
Fig. 8 is the sketch map of inner thread sleeve.
Fig. 9 is the schematic top plan view of Fig. 8.
Figure 10 is that the master who has the precast concrete panel of window opening mouth looks sketch map.
Figure 11 is that the master who has the precast concrete panel of door opening looks sketch map.
Figure 12 is the sketch map of B-B section among Figure 10.
Figure 13 is the sketch map of C-C section among Figure 10.
Figure 14 sketch map that to be the present invention of having adopted second kind of reinforced bar sleeve be connected with lower floor contiguous prefabricated concrete panel.
Reference numeral: 1-deck; The 2-topping; The 3-door and window hole; The 4-outer decorative layer; The anticorrosion wooden unit of 5-; The 7-tang; The 8-recess; The 9-inner thread sleeve; The vertical connecting reinforcement of 10-; 11-slip casting short tube; 12-indulges muscle; 13-pulp short tube; The horizontal steel tie of 14-; 15-reinforcing bar suspension ring; The 16-cement mortar; The 17-floor; The 18-floor bar; The 19-rubber strip; 20-polyethylene foamed plug; The 21-waterproof gasket cement; The 22-anchor bar; The 23-jamb; The horizontal connecting reinforcement of 24-.
6-reinforced bar sleeve, 6.1-screwed hole, 6.2-sleeve nose end bulge loop, 6.3-protruding ring rib, 6.4-slurry outlet, 6.5-injected hole, 6.6-groove.
The specific embodiment
Embodiment one is referring to shown in Fig. 1-4; This precast concrete panel, its body of wall order from the inside to the outside have deck 1 and topping 2, and reinforcing cage is arranged in the deck; In the concrete of topping 2 reinforced mesh is arranged; Said topping 2 is connected with deck 1 through the horizontal connecting reinforcement 24 that is connected on the reinforced mesh, and the left and right edges of topping 2 protrudes in deck 1, and the lower limb of topping 2 extends tang 7 downwards; The top of topping 2 projects upwards in deck 1, and the top edge of topping has the recess corresponding with the tang of the contiguous prefabricated concrete panel in upper strata 8.When the company seam crossing concreting of adjacent two precast concrete panels, topping 2 can serve as template, has simplified technology.
The horizontal bar two ends of said reinforcing cage are stretched out wall body structure layer left and right sides face and are presented two rows inwardly to curved horizontal steel tie 14; And this horizontal steel tie 14 does not protrude in the edge, the left and right sides of topping 2; The vertical muscle of reinforcing cage stretches out from wall body structure layer end face; Become the vertical connecting reinforcement 10 that is connected with the contiguous prefabricated concrete panel in upper strata, and this vertical connecting reinforcement 10 projects upwards in the top edge of topping 2, the end face of deck also upwards is extended with reinforcing bar suspension ring 15.The bottom of deck 1 is embedded with and the corresponding reinforced bar sleeve 6 of lower floor's vertical connecting reinforcement of contiguous prefabricated concrete panel.
Said reinforced bar sleeve 6 has two kinds; Material is a rolled section steel, and profile is drum or prism shape, on the reinforced bar sleeve sidewall of the end that enters the mouth near reinforcing bar, has an injected hole 6.5; On the sidewall that comes directly towards an end near reinforced bar sleeve, open slurry outlet 6.4; Said slurry outlet is connected with pulp short tube 13, and injected hole is connected with slip casting short tube 11, and the medial surface of deck 1 is stretched out in the outer end of pulp short tube 13 and slip casting short tube 11.Among Fig. 6, Fig. 7 first kind of reinforced bar sleeve; The tube inwall of this reinforced bar sleeve is a undergauge; Tube inwall one end of reinforced bar sleeve 6 is provided with the screwed hole 6.1 of undergauge; Screwed hole 6.1 is threaded with vertical muscle 12 in the deck, goes back reinforcement of weld simultaneously, and the tube inwall other end of reinforced bar sleeve 6 is provided with sleeve nose end bulge loop 6.2; Tube between said screwed hole 6.1 and the sleeve nose end bulge loop 6.2 has a plurality of spaced apart vertically protruding ring ribs 6.3 on the inwall, is being equipped with groove 6.6 between the adjacent protruding ring rib and between the two ends of the protruding ring rib at two ends and reinforced bar sleeve.
Among Figure 14 second kind of reinforced bar sleeve; Compare with first kind of reinforced bar sleeve; The tube inwall of second kind of reinforced bar sleeve is for all directly; The top of this reinforced bar sleeve is fixedly connected with the vertical muscle 12 of reinforcing cage in the deck 1, on the reinforced bar sleeve sidewall of the end that enters the mouth near reinforcing bar, has an injected hole, on the sidewall that comes directly towards an end near reinforced bar sleeve, opens slurry outlet.Vertical connecting reinforcement 10 on the contiguous prefabricated concrete panel of lower floor stretches in the reinforced bar sleeve from the lower end, is connected with reinforced bar sleeve through cement mortar 16 then.
Also be embedded with the inner thread sleeve 9 perpendicular to the plate face on the medial surface of deck 1, the structure of this inner thread sleeve 9 can be referring to Fig. 8, Fig. 9.Referring to Fig. 1, the inner thread sleeve 9 that is positioned at deck 1 left and right sides is used to connect template, and this template is that the perps of building between adjacent two precast concrete panels is used; Two pairs of inner thread sleeves about the inboard of the inner thread sleeve that the connection template is used also has, two pairs of inner thread sleeves are used to connect hanger about this.
Referring to Figure 10-13; Have door and window hole 3 on the said body of wall and (wherein be the window opening mouth among Figure 10; Among Figure 11 door opening); Build-in has anticorrosion wooden unit 5 on the side of door and window hole 3, is installed with anchor bar 34 in the anticorrosion wooden unit 5, an end of anchor bar 34 bend to 45 the degree and be embedded in the deck 1, the other end bend to 90 the degree and be embedded in the topping 2.In the present embodiment, jamb 23 passes through screw on anticorrosion wooden unit 5.
Referring to Figure 14; Accompany floor 17 between the contiguous prefabricated concrete panel in the present invention and lower floor or upper strata; Also be lined with rubber strip 19 between the lower end of the deck 1 of precast concrete panel and the floor 17; Floor bar 18 is arranged in the floor 17; Said reinforced bar sleeve 6 is enclosed within on the vertical connecting reinforcement 10 on the contiguous prefabricated concrete panel, and joints cement mortar 16 is fixing then, also is filled with polyethylene foamed plug 20 and waterproof gasket cement 21 between the topping of the contiguous prefabricated concrete panel of topping 2 of the present invention and lower floor or upper strata.
Embodiment two is referring to Fig. 5, and the lateral surface of said topping 2 is connected with outer decorative layer 4, and outer decorative layer 4 is face brick, coating or decorative panel.
The preparation method of this precast concrete panel, step 1, assembly unit bed die; Step 2, on bed die, place the topping reinforced mesh; Step 3, build the topping concrete; Step 4, before the topping concrete initial set, on the topping concrete, insert horizontal connecting reinforcement 24; Step 5, integral body are vibrated, and horizontal connecting reinforcement 24 is combined closely with the topping concrete; Step 6, a side form; Step 7, on topping, place reinforcing cage, reinforcing bar suspension ring 15 and inner thread sleeve 9; Comprise horizontal steel tie 14, vertical connecting reinforcement 10 on the reinforcing cage; Reinforced bar sleeve 6 is fixedly connected with the deck reinforcing cage, pulp short tube 13 is fixedly connected with reinforced bar sleeve 6 with slip casting short tube 11; Step 8, pouring structure layer concrete; Step 9, maintenance; Step 10, tear side form open, lifting.In the said step 9; The system of maintenance is quietly to stop, heat up, and constant temperature, cooling respectively are 2 hours, 2 hours, 8 hours and 2 hours, wherein programming rate be controlled at 15 degree/hour; The constant temperature maximum temperature is controlled at 60 degree; Cooling rate be controlled at 10 degree/hour, when wallboard and atmosphere temperature-difference are not more than 15 when spending, remove covering.
If have door and window hole 3 on the body of wall; Then in step 1; Also to prop up door-window opening mould plate in the time of the assembly unit bed die, in said step 4, before the topping concrete initial set, on the topping concrete, insert horizontal connecting reinforcement 24; And place anticorrosion wooden unit 5 and anchor bar 22, and anchor bar 22 also will be through in the anticorrosion wooden unit.
If the lateral surface of said topping 2 is connected with outer decorative layer 4; And outer decorative layer is a face brick, then in said step 2, on bed die, sticks earlier two-sided tape; Then with the outer decorative layer surface brick adherence on two-sided tape; And then the reinforced mesh of placement topping, after step 10 finishes, again the film of outer decorative layer tile surface and the dividing strip in the brickwork joint are removed, and sticked at outer decorative layer tile surface and the interior cement paste of seam with cleaning.
In order to make undisguised material matsurface; After said step 8 finishes; On side, the left and right sides, end face and the bottom surface of deck 1, be coated with the slow setting interfacial agents; Then after step 10 finishes, wash away side, the left and right sides, end face and the bottom surface of deck 1 with giant, make side, the left and right sides, end face and the bottom surface of deck become undisguised material matsurface.

Claims (9)

1. precast concrete panel; Its body of wall order from the inside to the outside has deck (1) and topping (2); Reinforcing cage is arranged in the deck, in the concrete of topping (2) reinforced mesh is arranged, it is characterized in that: said topping (2) is connected with deck (1) through the horizontal connecting reinforcement (24) that is connected on the reinforced mesh; The left and right edges of topping (2) protrudes in deck (1); The lower limb of topping (2) extends tang (7) downwards, and the top of topping (2) projects upwards in deck (1), and the top edge of topping has the recess corresponding with the tang of the contiguous prefabricated concrete panel in upper strata (8);
The horizontal bar two ends of said reinforcing cage are stretched out wall body structure layer left and right sides face and are presented two rows inwardly to curved horizontal steel tie (14); The vertical muscle of reinforcing cage stretches out from wall body structure layer end face; Become the vertical connecting reinforcement (10) that is connected with the contiguous prefabricated concrete panel in upper strata; The bottom of deck (1) is embedded with and the corresponding reinforced bar sleeve (6) of lower floor's vertical connecting reinforcement of contiguous prefabricated concrete panel; The top of said reinforced bar sleeve (6) is fixedly connected with the vertical muscle (12) of reinforcing cage in the deck (1); In that the vertical connecting reinforcement of contiguous prefabricated concrete panel enters the mouth and has an injected hole (6.5) on the reinforced bar sleeve sidewall of an end near lower floor; On the sidewall that comes directly towards an end near reinforced bar sleeve, open slurry outlet (6.4); Slurry outlet (6.4) is connected with slip casting short tube (11) with pulp short tube (13) with injected hole (6.5), and the medial surface of deck (1) is stretched out in the outer end of pulp short tube (13) and slip casting short tube (11), also is embedded with the inner thread sleeve (9) perpendicular to the plate face on the medial surface of deck (1).
2. a kind of precast concrete panel according to claim 1; It is characterized in that: have door and window hole (3) on the said body of wall; Build-in has anticorrosion wooden unit (5) on the side of door and window hole (3); Be installed with anchor bar (22) in the anticorrosion wooden unit (5), an end of anchor bar (22) bend to 45 the degree and be embedded in the deck (1), the other end bend to 90 the degree and be embedded in the topping (2).
3. a kind of precast concrete panel according to claim 1 is characterized in that: the lateral surface of said topping (2) is connected with outer decorative layer (4), and outer decorative layer is face brick, coating or decorative panel.
4. a kind of precast concrete panel according to claim 1 is characterized in that: left and right sides face, end face and the bottom surface of said deck (1) is undisguised material matsurface.
5. a kind of precast concrete panel according to claim 1; It is characterized in that: the material of said reinforced bar sleeve (6) is a rolled section steel; Profile is drum or prism shape; The tube inwall of reinforced bar sleeve (6) is for all directly or undergauge; Wherein tube inwall one end of the reinforced bar sleeve of undergauge is provided with the screwed hole (6.1) of undergauge, and screwed hole (6.1) is threaded with vertical muscle (12) in the deck (1), and an inwall other end of reinforced bar sleeve (6) is provided with sleeve nose end bulge loop (6.2); Tube between said screwed hole (6.1) and the sleeve nose end bulge loop (6.2) has a plurality of spaced apart vertically protruding ring ribs (6.3) on the inwall, is being equipped with groove (6.6) between the adjacent protruding ring rib and between the two ends of the protruding ring rib at two ends and reinforced bar sleeve.
6. the preparation method of a manufacturing such as each described precast concrete panel of claim 1-5 is characterized in that:
Step 1, assembly unit bed die;
Step 2, on bed die, place the topping reinforced mesh;
Step 3, build the topping concrete;
Step 4, before the topping concrete initial set, on the topping concrete, insert horizontal connecting reinforcement (24);
Step 5, integral body are vibrated, and horizontal connecting reinforcement (24) is combined closely with the topping concrete;
Step 6, a side form;
Step 7, on topping, place reinforcing cage, reinforcing bar suspension ring (15) and inner thread sleeve (9); Comprise horizontal steel tie (14), vertical connecting reinforcement (10) on the reinforcing cage; Reinforced bar sleeve (6) is fixedly connected with the deck reinforcing cage, pulp short tube (13) is fixedly connected with reinforced bar sleeve (6) with slip casting short tube (11);
Step 8, pouring structure layer concrete;
Step 9, maintenance;
Step 10, tear side form open, lifting.
7. the preparation method of a kind of precast concrete panel according to claim 6; It is characterized in that: in said step 1; Also to prop up door-window opening mould plate in the time of the assembly unit bed die; In said step 4, before the topping concrete initial set, on the topping concrete, insert horizontal connecting reinforcement (24), and place anticorrosion wooden unit (5) and anchor bar (22).
8. the preparation method of a kind of precast concrete panel according to claim 6; It is characterized in that: in said step 2; On bed die, stick earlier two-sided tape, then with the outer decorative layer surface brick adherence on two-sided tape, and then place the reinforced mesh of topping; After step 10 finishes, again the film of outer decorative layer tile surface and the dividing strip in the brickwork joint are removed, and sticked at outer decorative layer tile surface and the interior cement paste of seam with cleaning.
9. the preparation method of a kind of precast concrete panel according to claim 6 is characterized in that: in the said step 9, the system of maintenance is quietly to stop, heat up; Constant temperature, cooling respectively are 2 hours, 2 hours, 8 hours and 2 hours; Wherein programming rate be controlled at 15 the degree/hour, the constant temperature maximum temperature be controlled at 60 the degree, cooling rate be controlled at 10 the degree/hour; When wallboard and atmosphere temperature-difference are not more than 15 when spending, remove covering.
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