CN101294423A - Construction method for embedding thermal insulation in concrete structure exterior wall surface - Google Patents
Construction method for embedding thermal insulation in concrete structure exterior wall surface Download PDFInfo
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- CN101294423A CN101294423A CNA2008100499283A CN200810049928A CN101294423A CN 101294423 A CN101294423 A CN 101294423A CN A2008100499283 A CNA2008100499283 A CN A2008100499283A CN 200810049928 A CN200810049928 A CN 200810049928A CN 101294423 A CN101294423 A CN 101294423A
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Abstract
The invention discloses a construction method of a concrete structure external wall with a built-in thermal insulating layer. The construction method comprises the steps of putting polystyrene plates among multiple layers of reinforcing meshes, obliquely inserting reinforcing steel bars in three-dimensional direction, welding the steel bars to obtain a thermal insulating wire rack board, and simultaneously pouring concrete on both internal and external sides to form a structural system. The specific construction method comprises the steps of: fabricating the thermal insulating wire rack board, banding external wall boundary members (embedded columns) and external wall board steel bars, installing the thermal insulating wire rack board, connecting steel bars around the thermal insulating wire rack board and laying pipelines, installing and fixing steel struts on the inner side of the thermal insulating wire rack board and cushion blocks on the outer side of the thermal insulating wire rack board, erecting inner templates for an external wall, erecting outer templates for the external wall, testing, simultaneously pouring concrete at both the internal side and the external side, removing templates, and curing. The inventive concrete structure external wall with the built-in thermal insulating layer has the advantages of solid connection, good sound insulating and thermal insulating effects, long service life, simple construction method, good shock resistant effect, short construction time, environmental friendliness, low construction cost, and good social and economic benefits; and is suitable for various urban residential buildings.
Description
One, technical field:
The present invention relates to a kind of construction techniques, particularly relate to a kind of job practices of embedding thermal insulation in concrete structure exterior wall surface.
Two, background technology:
Widely apply external wall outer insulation technology in the current construction work, but because insulation layer places the structural plane outside, and adopt bonding mode to be connected with body of wall more, the effect of natural conditions owing to exposed to the weather etc., insulation layer can't be accomplished and the same life-span of wall body structure layer, quality problems such as external surface of buildings ftractures, peels off take place in the design life of being everlasting, and do not reach good heat insulation effect and influence attractive in appearance.
Three, summary of the invention:
Technical problem to be solved by this invention is: overcome the deficiencies in the prior art, provide a kind of connect firm, sound-insulating is effective, the job practices of the embedding thermal insulation in concrete structure exterior wall surface of long service life and easy construction.
Technical scheme of the present invention is: a kind of job practices of embedding thermal insulation in concrete structure exterior wall surface may further comprise the steps:
The making of a, insulation network frame plate: polyphenyl plate is placed between the two-layer reinforced mesh, go into reinforcing bar from 3 D stereo direction oblique cutting, described reinforcing bar runs through described polyphenyl plate, and its both ends are fixing with described two-layer reinforced mesh welding respectively, and have the gap between polyphenyl plate and the two-layer steel mesh reinforcement;
B, wall body structure laid reinforcement binding: according to drawing design, job specfication regulation colligation wall body structure reinforcing bar;
The installation of c, insulation network frame plate: rack insulation network frame plate is winched on the top template that floor supports by subregion branch block-by-block, number installation in place according to planar design then, rack insulation network frame plate is positioned at the outside of wall body structure reinforcing bar, and in the two sides brushing interfacial agents that is incubated network frame plate;
D, the inside and outside setting of supporting of insulation network frame plate: steelframe is adopted in the interior support of insulation network frame plate, and its outer support is adopted concrete pad, and, run through insulation network frame plate and wall body structure reinforcing bar and be provided with auxiliary fixed bar;
Installing of e, interior outboard template: interior outboard template is installed by ejecting the wall form control line, and an end of described steelframe contacts with polyphenyl plate, and its other end contacts with inner side template, one end of described concrete pad contacts with polyphenyl plate, and its other end contacts with outboard template;
F, concrete are built: the cavity between polyphenyl plate and the outboard template adopts and builds from close property high performance concrete, and the cavity between polyphenyl plate and the inner side template adopts ordinary concrete to build, and the both sides concrete is built simultaneously; Build in the process at whole concrete, adopt the staged and layered method to build, build inboard ordinary concrete earlier to certain altitude by material distributing machine, do not vibrate, adopt the tower crane vertical transport then and build the outside from close property high performance concrete, begin the inboard ordinary concrete that vibrates then, can not be higher than the liquid level of ordinary concrete from the liquid level of close property high performance concrete; Vibrating when close property high performance concrete is built adopted and manually struck shake and use the method for vibrating and combining outside the plate vibrator mould, perhaps uses the micro-vibration rod to insert the method for vibrating.
Outboard template and concrete maintenance in g, the dismounting: two kinds of concrete settings are removed interior outboard template after all reaching standard, and carry out maintenance.
Described steelframe contains top board and connecting rod, and wherein the two ends of connecting rod are connected with a top board respectively, and two top boards contact with polyphenyl plate and inner side template respectively; Described concrete pad is column type or circular platform type, and its both ends of the surface contact with polyphenyl plate and outboard template respectively, and wherein the large end face of circular platform type contacts with polyphenyl plate; Described auxiliary fixed bar is linear pattern or L type, and wherein, the curved end of the auxiliary fixed bar of L type contacts with outboard template.
Described steelframe is spaced apart according to the distance of 300-500mm, described auxiliary fixed bar is spaced apart according to the distance of 300-400mm, described concrete pad is spaced apart according to the distance of 200-300mm, and concrete pad is positioned on the same vertical line up and down, described in addition auxiliary fixed bar is positioned at the below of described concrete pad, is convenient to pouring material.
Described auxiliary fixed bar adopts the galvanized pipe of Φ 6-Φ 8mm, and the connecting rod of described steelframe is the reinforcing bar of Φ 10-Φ 12mm, and the top board of described steelframe is the thick steel plate of 2-3mm.
Described thickness of building from close property high performance concrete is 40-60mm, and the thickness of described polyphenyl plate is 40-60mm; Described polyphenyl plate is the extrusion moulding type polyphenyl plate; Conventional method is adopted in the maintenance of ordinary concrete, adopt after outboard template is removed immediately at this concrete surface cutting shrinkage strain seam from the maintenance of close property high performance concrete, and brushing curing agent or covering water and carry out maintenance, and its curing time should prolong more than 24 hours than ordinary concrete.
When the insulation network frame plate is installed, the horizontal bar of adjacent insulation network frame plate is on a line, and adopt the piece between gluing or the adjacent insulation network frame plate of rubber belt sealing, prevent spillage, when insulation network frame plate reinforcing network sheet was installed, the reinforcing network sheet was overlapping consistent with the transverse reinforcement and the vertical reinforcement of the reinforced mesh of insulation network frame plate.
Overlap joint at the reinforced mesh of negative and positive angle and edge insulation network frame plate wants smooth and vertical up and down, so that the concrete blanking is smooth, windowsill is 10-20cm apart from the distance of polyphenyl plate when cast-in-place door, window position, and adopt two-layer dense mesh to stop in the junction, to prevent from close property high performance concrete and ordinary concrete mixing.
The described slump from close property high performance concrete is 260～280mm/15s, and its divergence is 650～750mm/15s; Described maximum size of coarse aggregate from close property high performance concrete should be greater than 10mm; Describedly in close property high performance concrete, add quantitative fiber, prevent that external surface from bursting.
Adopt 2 teams and groups independently to build respectively during concreting, teams and groups' specialty is built ordinary concrete, and teams and groups' specialty is built from close property high performance concrete, from the close property high performance concrete initial setting time, needs to adopt the Admixture proper extension.
Adopt the strict control of the outer inserted link method of flashlight lighting concreting height, and, when ordinary concrete is built, concrete material is put on the flat board, in body of wall, catch up with slurry, prevent that pump line from directly building the power of impacting to exterior wall and crossing ambassador and be incubated network frame plate and destroy, when building, adopts close property high performance concrete hopper and chute blanking, the reasonable quantity configuration of chute, prevent because of speed of perfusion occur too soon the trickling clogging of untimely generation, a little be located at corner post from building of close property high performance concrete, sleeper, the bigger positions of opposite planar rigidity such as structure wall center pillar, method in the blanking of privileged sites such as waft luffer boards and balcony employing fixed point guarantees closely knit from building of close property high performance concrete.
The invention has the beneficial effects as follows:
1, the present invention effectively solves in the wall face built-in heat insulation layer structure construction template position control, how two-sided building guarantees construction difficult problems such as structure is closely knit, defectives such as the concrete density that can avoid the traditional handicraft construction to cause is poor, the control of concrete panel structural thickness is bad, the member globality of building moulding is good, can effectively guarantee the inherent quality and the appearance effect of structure.
2, the present invention proposes to adopt extrusion moulding type polyphenyl plate (XPS plate) to replace expansion polyphenyl plate (EPS plate) thereby improves insulation network frame plate self structure rigidity, the excessive insulation network frame plate cracking that causes of lateral pressure and the technical barrier of distortion in the time of effectively avoiding concreting.
3, the present invention proposes to add in close property high performance concrete on the top layer technology of quantitative fiber first, and after form removal, cut the method for shrinkage strain seam at concrete surface by decorating requirement immediately, thereby avoided structural outer surface the defective of cracking to occur, and be easy to paste decorative floor block, and reach the effect of appearance looks elegant.
4, the technical scheme that the present invention proposes insulation network frame plate both sides ordinary concrete and build simultaneously from close property high performance concrete, and they adopt the mode of building of material distributing machine and hopper respectively, the method that adopts the combination of vibrating to carry out.Ordinary concrete adopts vibrating head to insert and smashes, vibrator and rubber hammer knock auxiliary vibrating outside close property high performance concrete adopts mould, increase ordinary concrete effectively and from the compactness of close property high performance concrete, can also guarantee effectively the equilibrium pressure of insulation network frame plate is avoided being incubated network frame plate and torsional deformation occurred.
5, the present invention proposes when vibrating and to be higher than from close property high performance concrete liquid level by control ordinary concrete liquid level, and the both sides liquid level discrepancy in elevation is not more than 20cm, influences structural strength thereby effectively controlled ordinary concrete and do not mixed mutually from close property high performance concrete.
6, the present invention proposes inboard steel support assurance physical dimension and the insulation network frame plate of adopting of insulation network frame plate not to the inboard skew of structure; the method of precast concrete cushion block control insulation network frame plate outside protective layer thickness is placed in the insulation network frame plate outside; be convenient to build, and increase the bonding strength of insulation network frame plate and body of wall.
7, thermal and insulating performance of the present invention has reached the energy-conservation requirement of national regulation, can enlarge living space more than 8%, reduce building debris, also solved hidden danger such as generally adopt exterior wall is pasted, plug-in insulation layer technology produces easy crack, hollowing, seepage at present, come off, numerous advantages such as union insulation, antidetonation, environmental protection, short construction period, technology maturation advanced person, cost are low, be applicable to the various forms of dwelling constructions in cities and towns, have good social benefit and economic benefit.
Four, description of drawings:
Fig. 1 is the structural representation of concrete structure built-in heat insulation layer;
Fig. 2 is the structure diagram of concrete structure built-in heat insulation layer;
Fig. 3 is the structural representation of steelframe shown in Figure 1;
Fig. 4 is the structural representation of auxiliary fixed bar shown in Figure 1;
Fig. 5 is the structural representation of concrete pad shown in Figure 1.
Five, the specific embodiment:
Embodiment: referring to Fig. 1-Fig. 5, among the figure, 1-assists fixed bar, 2-concrete pad, 3-steelframe, the 4-inner side template, 5-body of wall, 6-wall body structure reinforcing bar, 7-reinforced mesh, 8-polyphenyl plate, the 9-outboard template, the 10-concrete pad, 11-reinforcing bar (abdomen silk), 12-is from close property high performance concrete body.
Among the present invention, concrete structure built-in heat insulation layer is that two-layer reinforced mesh 7 therebetween of a kind of employing adopt 3 D stereo oblique cutting reinforcing bar 11 to be welded into the insulation network frame plate with polyphenyl plate 8 backs, and inside and outside both sides are the structure of concreting simultaneously.Polyphenyl plate 8 is the extrusion moulding type polyphenyl plate.
The job practices of embedding thermal insulation in concrete structure exterior wall surface may further comprise the steps:
The making of a, insulation network frame plate: polyphenyl plate 8 is placed between the two-layer reinforced mesh 7, go into reinforcing bar (abdomen silk) 11 from 3 D stereo direction oblique cutting, reinforcing bar (abdomen silk) 11 runs through polyphenyl plate 8, its both ends are fixing with two-layer reinforced mesh 7 welding respectively, and have the gap between polyphenyl plate 8 and the two-layer steel mesh reinforcement 7.
The insulation network frame plate should be processed according to the detailed material list that provides, and to guarantee can satisfy the requirement of construction drawing node in work progress, reaches the purpose of accelerating construction progress.Should describe situations such as the specification of respectively numbering corresponding network frame plate, size, peripheral node diagnostic, position in the material list in detail.The construction technical staff reply is carried out piece in advance and is set type according to the drawing physical dimension, and proposes the minimum insulation network frame plate specification of piece.Should leave the place of dried flat after the insulation network frame plate is marched into the arena in, set up and protect frame temporarily, adopt inclined by putting.
B, wall body structure laid reinforcement binding:
According to drawing design, job specfication regulation colligation wall body structure reinforcing bar 6, to guarantee that especially specification, rebar spacing, the verticality of cage of reinforcement, the topping of wall body structure muscle will adhere to specification, make every effort to settle at one go.Shear wall reinforcing bar suitable for reading adds the weldering spacer bars, and about 1 meter of spacing guarantees not outwards skew of shear force wall reinforcing steel bar.Can be incubated the network frame plate rack after the body of wall reinforcing bar binding is qualified by inspection installs.
The installation of c, insulation network frame plate:
In insulation network frame plate when lifting, winch to rack insulation network frame plate on the top template that floor supports by subregion branch block-by-block, and then manually number installation in place according to planar design.Need guarantee that piece is tight during assembly unit insulation network frame plate, spillage is not excessive for the slit, adopts gluing or adhesive tape is guaranteed tight-closed.The horizontal bar of reinforced mesh 7 muscle phase Lin Chu that must guarantee to be incubated network frame plate when the insulation network frame plate is installed is on a line; When the plate seam of insulation network frame plate is installed the reinforcing network sheet, the reinforcing network sheet must with the reinforced mesh 7 of insulation network frame plate laterally and vertical overlapping consistent (comprise negative and positive angle reinforcing network sheet install), otherwise precast concrete cushion block 2,10 is not provided, and just can not ensure the quality of products.Must guarantee at reinforced mesh 7 overlap joint of negative and positive angle and edge smooth and vertical up and down so that the concrete blanking is smooth.Cast-in-place door, window position windowsill are preferably 10cm. apart from the distance of extruded sheet 8 and adopt two-layer dense mesh to stop from close property high performance concrete and ordinary concrete mixing in the junction for preventing.Rack insulation network frame plate is positioned at the outside of wall body structure reinforcing bar 6, and in the two sides brushing interfacial agents that is incubated network frame plate.
D, the inside and outside setting of supporting of insulation network frame plate: steelframe 3 is adopted in the interior support of insulation network frame plate, and its outer support is adopted concrete pad 10, and, run through insulation network frame plate and wall body structure reinforcing bar 6 and be provided with auxiliary fixed bar 1.
Steelframe 3 contains top board and connecting rod, and wherein the two ends of connecting rod are connected with a top board respectively, and two top boards contact with polyphenyl plate 8 and inner side template 4 respectively; Concrete pad 2,10 is column type or circular platform type, and wherein the large end face of circular platform type contacts with polyphenyl plate 8; Auxiliary fixed bar 1 is linear pattern or L type, and wherein, the curved end of the auxiliary fixed bar 1 of L type contacts with outboard template 9.
Can attach on the concrete pad 2,10 and prick silk, be convenient to and reinforced mesh 7, abdomen silk 11 and 6 colligations of wall body structure reinforcing bar.
The support interval of steelframe 3 is not more than 500mm, edge and seam areas are steelframe 3 encrypted areas, the encrypted area spacing is not more than 400mm, the steelframe 3 of edge should leave the edge and be not more than the 100mm position and begin to be provided with, and seaming position should directly be placed on steelframe 3 seam crossing (or handle according to the edge); Steelframe 3 all should adopt the bundle silk to be connected with wall body structure reinforcing bar 6 and keep vertical with network frame plate.
The insulation network frame plate outside is placed precast concrete cushion block 10 and is provided with from close property high performance concrete quality for guaranteeing.Precast concrete cushion block 10 slave plates seam 5cm places (comprising the negative and positive angle) begin to place, and the colligation line of firmly being sure to up and down, anyhow can not be to spacing greater than 30cm, and place and must be placed in the grid of abdomen silk 11, to guarantee building from close property high performance concrete.
Installing of e, interior outboard template 4,9: interior outboard template 4,9 is installed by ejecting the wall form control line, and an end of steelframe 3 contacts with polyphenyl plate 8, and its other end contacts with inner side template 4, one end of concrete pad 10 contacts with polyphenyl plate 8, and its other end contacts with outboard template 9.Template can adopt wooden form, also can adopt the template of other materials, does not describe in detail.
Concrete grammar is:
(1) by ejecting the wall form control line interior outboard template 4,9 is installed, generally when the bottom concrete strength is not less than 7.5MPa, is begun to install outboard template 4,9 in one deck.Interior outboard template 4,9 is installed must be tightly firmly, and to prevent faulting of slab ends and spillage phenomenon, especially outboard template 9 plates seam should strictly be controlled, and avoids spillage.Exterior wall will exceed about 20 centimeters of work planes during carpenter's formwork, the sectional dimension of strict control exterior wall, and thickness error can not be reinforced firmly greater than 1 centimeter.
(2) installed and fixed interior outboard template at 4,9 o'clock, split bolt through walls should penetrate from inside to outside, makes the fragment that penetrates polyphenyl plate 8 fall into insulation layer bottom, the outside, avoids polyphenyl plate 8 fragments to fall in the inside structure body of wall.
(3) when installation outboard template 9, must reserve the high clean-out hatch of 80～100mm in the root or the insulation network frame plate outside of body of wall, so that clean out foreign material that fall and the fragment that is incubated network frame plate with dust catcher.Particle in the attention template must be used the dust catcher sucking-off.
F, concrete are built: the cavity between polyphenyl plate 8 and the outboard template 9 adopts and builds from close property high performance concrete, forms concrete structure plate 12, and the cavity between polyphenyl plate 8 and the inner side template 4 adopts ordinary concrete to build, and forms body of wall 5; The thickness of building from close property high performance concrete is 40-60mm, and the thickness of polyphenyl plate 8 is 40-60mm.
Concrete grammar is:
(1) the invar muscle is intensive between polyphenyl plate 8 and the outboard template 9, and concrete section is very little, thereby adopts and build from close property high performance concrete.Should should reach following service behaviour index from close property concrete:
The slump (15s): 260～280mm
Divergence (15s): 650～750mm
Workability is good, visual no bleeding, segregation phenomenon.In view of the influence that intersection abdomen silk 11 is arranged in the concrete, maximum size of coarse aggregate should be greater than 10mm.Consider the requirement of structural outer surface cracking resistance, in close property high performance concrete, add quantitative fiber on the top layer.
(2) in the transportation and after concrete delivery truck reaches the spot, in time inspect the slump and the divergence of concrete by random samples, do not reach can handling of requirement, forbid to Che Neijia water in conjunction with the way that Commercial Concrete supplier take to add Admixture for the slump and divergence.Haulage time should can extend to 120 minutes at most at normal temperatures when 20oC is following in 90 minutes.Before the discharging, transport vehicle should run up more than 1 minute can discharging, if after adding Admixture, should run up could discharging after 3 minutes.
(3) need adopt material distributing machine to build ordinary concrete during concreting, tower crane cooperates builds from close property high performance concrete.Adopt 2 teams and groups during concreting, teams and groups' specialty is built ordinary concrete, and teams and groups' specialty is built from close property high performance concrete, and tissue is unified, close fit, and the time is coagulated at the place from close property high performance concrete, needs to adopt the Admixture proper extension.
(4) the staged and layered method is adopted in concreting, in whole concrete construction, build inboard ordinary concrete earlier to certain altitude, do not vibrate, adopt tower crane vertical transport self-compaction pea gravel concreten to build to pouring location then, inboard ordinary concrete then begins to vibrate.Can not exceed the ordinary concrete liquid level from close property high performance concrete liquid level.Because outboard template 9 has exceeded end face 20cm, unnecessary worry concrete can overflow the outside, drops down on the ground.Concrete is built the inside and outside discrepancy in elevation of process must not surpass 20cm, should control emphatically.
Should adopt the method for manually striking shake and using the plate vibrator mould to vibrate and combine when (5) the self-compaction pea gravel concreten is built outward, use the micro-vibration rod to insert where necessary and vibrate.Knock outboard template with rubber hammer and check density at any time, also help to build closely knit to guarantee the self-compaction pea gravel concreten simultaneously from the blanking of close property high performance concrete from close property high performance concrete.It begins vibrating time should be identical with the ordinary concrete vibrating time, manually strikes to smash can begin earlier to carry out.6～8 people when close property high performance concrete is built, speed of perfusion is suitably controlled, and is unsuitable too fast, in case pile up influence slurry down.
(6) the highly strict control of concreting, control method adopts the outer inserted link method of flashlight lighting.When ordinary concrete is built, concrete material is put on the flat board, in shear wall, catches up with slurry, forbid pump line directly exterior wall to be built the power of impacting and cross ambassador and be incubated network frame plate and destroy.Adopt hopper and chute blanking when close property high performance concrete is built, chute reasonable disposition (3～4) because this side concrete section is less, the clogging of the untimely generation of trickling occurs easily when concreting speed is too fast.Therefore when close property high performance concrete is built, controlling concrete speed of perfusion, suitably set up and build a little.Should be located at the bigger positions of opposite planar rigidity such as corner post, sleeper, structure wall center pillar from close property concreting point.Method in the blanking of privileged sites such as waft luffer boards and balcony employing fixed point guarantees to build closely knit from close property high performance concrete.
Behind the concreting, the insulation network frame plate is combined as a whole by interfacial agents, reinforced mesh 7, take the lead steel wire and auxiliary fixed bar 1 and structural concrete.
Outboard template 4,9 and concrete maintenance in g, the dismounting: two kinds of concrete settings are removed interior outboard template 4,9 after all reaching standard, conventional method is adopted in the maintenance of ordinary concrete, adopt after outboard template 9 is removed immediately at this concrete surface cutting shrinkage strain seam from the maintenance of close property high performance concrete, prevent to produce shrinkage crack, and brushing curing agent or covering water and carry out maintenance, and curing time should prolong more than 24 hours than ordinary concrete.
Change the concrete parameter value in the foregoing description, can form a plurality of embodiment, be common excursion of the present invention, do not describe in detail one by one at this.
Claims (10)
1, a kind of job practices of embedding thermal insulation in concrete structure exterior wall surface is characterized in that: may further comprise the steps:
The making of a, insulation network frame plate: polyphenyl plate is placed between the two-layer reinforced mesh, go into reinforcing bar from 3 D stereo direction oblique cutting, described reinforcing bar runs through described polyphenyl plate, and its both ends are fixing with described two-layer reinforced mesh welding respectively, and have the gap between polyphenyl plate and the two-layer steel mesh reinforcement;
B, wall body structure laid reinforcement binding: according to drawing design, job specfication regulation colligation wall body structure reinforcing bar;
The installation of c, insulation network frame plate: rack insulation network frame plate is winched on the top template that floor supports by subregion branch block-by-block, number installation in place according to planar design then, rack insulation network frame plate is positioned at the outside of wall body structure reinforcing bar, and in the two sides brushing interfacial agents that is incubated network frame plate;
D, the inside and outside setting of supporting of insulation network frame plate: steelframe is adopted in the interior support of insulation network frame plate, and its outer support is adopted concrete pad, and, run through insulation network frame plate and wall body structure reinforcing bar and be provided with auxiliary fixed bar;
Installing of e, interior outboard template: interior outboard template is installed by ejecting the wall form control line, and an end of described steelframe contacts with polyphenyl plate, and its other end contacts with inner side template, one end of described concrete pad contacts with polyphenyl plate, and its other end contacts with outboard template;
F, concrete are built: the cavity between polyphenyl plate and the outboard template adopts and builds from close property high performance concrete, and the cavity between polyphenyl plate and the inner side template adopts ordinary concrete to build, and the both sides concrete is built simultaneously; Build in the process at whole concrete, adopt the staged and layered method to build, build inboard ordinary concrete earlier to certain altitude by material distributing machine, do not vibrate, adopt the tower crane vertical transport then and build the outside from close property high performance concrete, begin the inboard ordinary concrete that vibrates then, can not be higher than the liquid level of ordinary concrete from the liquid level of close property high performance concrete; Vibrating when close property high performance concrete is built adopted and manually struck shake and use the method for vibrating and combining outside the plate vibrator mould, perhaps uses the micro-vibration rod to insert the method for vibrating.
Outboard template and concrete maintenance in g, the dismounting: two kinds of concrete settings are removed interior outboard template after all reaching standard, and carry out maintenance.
2, the job practices of embedding thermal insulation in concrete structure exterior wall surface according to claim 1, it is characterized in that: described steelframe contains top board and connecting rod, wherein the two ends of connecting rod are connected with a top board respectively, and two top boards contact with polyphenyl plate and inner side template respectively; Described concrete pad is column type or circular platform type, and its both ends of the surface contact with polyphenyl plate and outboard template respectively, and wherein the large end face of circular platform type contacts with polyphenyl plate; Described auxiliary fixed bar is linear pattern or L type, and wherein, the curved end of the auxiliary fixed bar of L type contacts with outboard template.
3, the job practices of embedding thermal insulation in concrete structure exterior wall surface according to claim 2, it is characterized in that: described steelframe is spaced apart according to the distance of 300-500mm, described auxiliary fixed bar is spaced apart according to the distance of 300-400mm, described concrete pad is spaced apart according to the distance of 200-300mm, and concrete pad is positioned on the same vertical line up and down, described in addition auxiliary fixed bar is positioned at the below of described concrete pad, is convenient to pouring material.
4, the job practices of embedding thermal insulation in concrete structure exterior wall surface according to claim 3, it is characterized in that: described auxiliary fixed bar adopts the galvanized pipe of Φ 6-Φ 8mm, the connecting rod of described steelframe is the reinforcing bar of Φ 10-Φ 12mm, and the top board of described steelframe is the thick steel plate of 2-3mm.
5, the job practices of embedding thermal insulation in concrete structure exterior wall surface according to claim 1 is characterized in that: described thickness of building from close property high performance concrete is 40-60mm, and the thickness of described polyphenyl plate is 40-60mm; Described polyphenyl plate is the extrusion moulding type polyphenyl plate; Conventional method is adopted in the maintenance of ordinary concrete, adopt after outboard template is removed immediately at this concrete surface cutting shrinkage strain seam from the maintenance of close property high performance concrete, and brushing curing agent or covering water and carry out maintenance, and its curing time should prolong more than 24 hours than ordinary concrete.
6, the job practices of embedding thermal insulation in concrete structure exterior wall surface according to claim 1, it is characterized in that: when the insulation network frame plate is installed, the horizontal bar of adjacent insulation network frame plate is on a line, and adopt the piece between gluing or the adjacent insulation network frame plate of rubber belt sealing, prevent spillage, when insulation network frame plate reinforcing network sheet was installed, the reinforcing network sheet was overlapping consistent with the transverse reinforcement and the vertical reinforcement of the reinforced mesh of insulation network frame plate.
7, the job practices of embedding thermal insulation in concrete structure exterior wall surface according to claim 6, it is characterized in that: the overlap joint at the reinforced mesh of negative and positive angle and edge insulation network frame plate wants smooth and vertical up and down, so that the concrete blanking is smooth, windowsill is 10-20cm apart from the distance of polyphenyl plate when cast-in-place door, window position, and adopt two-layer dense mesh to stop in the junction, to prevent from close property high performance concrete and ordinary concrete mixing.
8, the job practices of embedding thermal insulation in concrete structure exterior wall surface according to claim 1 is characterized in that: the described slump from close property high performance concrete is 260～280mm/15s, and its divergence is 650～750mm/15s; Described maximum size of coarse aggregate from close property high performance concrete should be greater than 10mm; Describedly in close property high performance concrete, add quantitative fiber, prevent that external surface from bursting.
9, the job practices of embedding thermal insulation in concrete structure exterior wall surface according to claim 1, it is characterized in that: adopt 2 teams and groups independently to build respectively during concreting, teams and groups' specialty is built ordinary concrete, teams and groups' specialty is built from close property high performance concrete, from the close property high performance concrete initial setting time, need to adopt the Admixture proper extension.
10, the job practices of embedding thermal insulation in concrete structure exterior wall surface according to claim 1, it is characterized in that: adopt the strict control of the outer inserted link method of flashlight lighting concreting height, and, when ordinary concrete is built, concrete material is put on the flat board, in body of wall, catch up with slurry, prevent that pump line from directly building the power of impacting to exterior wall and crossing ambassador and be incubated network frame plate and destroy, when building, adopts close property high performance concrete hopper and chute blanking, the reasonable quantity configuration of chute, prevent because of speed of perfusion occur too soon the trickling clogging of untimely generation, a little be located at corner post from building of close property high performance concrete, sleeper, the bigger positions of opposite planar rigidity such as structure wall center pillar, method in the blanking of privileged sites such as waft luffer boards and balcony employing fixed point guarantees closely knit from building of close property high performance concrete.
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Cited By (29)
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| CN101824860A (en) * | 2010-01-22 | 2010-09-08 | 郑俊元 | Wall insulation board |
| CN101858109A (en) * | 2010-06-22 | 2010-10-13 | 林淑芬 | Supporting device and fixing method of insulating layer of external wall |
| CN101942872A (en) * | 2010-08-20 | 2011-01-12 | 谢正明 | Novel aseismatic energy-saving external wall body and construction method thereof |
| CN102134881A (en) * | 2011-02-15 | 2011-07-27 | 徐焱 | Concrete outer wall heat insulation structure |
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2008
- 2008-05-30 CN CN2008100499283A patent/CN101294423B/en not_active Expired - Fee Related
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| CN101824860A (en) * | 2010-01-22 | 2010-09-08 | 郑俊元 | Wall insulation board |
| CN101858109A (en) * | 2010-06-22 | 2010-10-13 | 林淑芬 | Supporting device and fixing method of insulating layer of external wall |
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| CN102337764A (en) * | 2010-07-28 | 2012-02-01 | 沈阳万科房地产开发有限公司 | Prefabricated cast-in-place combination type superposed shear wall |
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| CN107762056A (en) * | 2016-11-01 | 2018-03-06 | 张家口市第建筑工程有限公司 | A kind of CL network frame plates and preparation method thereof |
| CN107009499A (en) * | 2017-03-14 | 2017-08-04 | 孟锦 | A kind of preparation method of the pre-cast concrete walling with heat-insulation layer |
| CN108716252A (en) * | 2018-07-19 | 2018-10-30 | 栗树青 | A kind of rapid constructing method of no cavity composite thermal-insulating wall |
| CN109403476A (en) * | 2018-11-06 | 2019-03-01 | 济南捷源新材料有限公司 | Novel anchoring piece, the cast-in-situ wall containing steel wire frame plate and construction technology |
| CN109281414A (en) * | 2018-11-06 | 2019-01-29 | 济南捷源新材料有限公司 | A kind of novel anchoring piece, cast-in-situ wall and construction technology containing steel wire frame plate |
| CN110029757A (en) * | 2019-05-14 | 2019-07-19 | 承德建元科技有限公司 | A kind of built-in heat insulation cast-in-place concrete composite shear wall and its construction method |
| CN110284634A (en) * | 2019-06-03 | 2019-09-27 | 上海港城建筑安装工程有限公司 | A kind of insulated wall pouring molding construction technology |
| CN110284634B (en) * | 2019-06-03 | 2021-05-07 | 上海港城建筑安装工程有限公司 | Pouring forming construction process for heat-insulating wall |
| CN110206163A (en) * | 2019-06-18 | 2019-09-06 | 五冶集团上海有限公司 | A kind of PC superimposed sheet location structure |
| CN112962813A (en) * | 2021-01-29 | 2021-06-15 | 重庆大学 | Light whole-room composite external wall panel and mounting structure thereof |
| CN114215018A (en) * | 2022-01-18 | 2022-03-22 | 中国水利水电第七工程局有限公司 | Concrete placement construction heat preservation canopy |
| CN115354797A (en) * | 2022-10-21 | 2022-11-18 | 唐山华纤科技有限公司 | Insulation construction integration evaporates presses aerated concrete board |
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