CN104831831A - Foam concrete-large-porosity shale brick outer wall and self heat insulation system construction method - Google Patents
Foam concrete-large-porosity shale brick outer wall and self heat insulation system construction method Download PDFInfo
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Abstract
The invention discloses a foam concrete-large-porosity shale brick outer wall and self heat insulation system construction method. The method mainly comprises the steps of wall body positioning line snapping, wall body bottom foot arranging, middle hole single-bar post bar planting, wall body first construction section building maintenance, core post fine stone concrete first construction section casting, steel bar first-time connection, wall body second stage building maintenance, steel bar second-time connection, core post fine stone concrete second construction stage filling, wall body painting maintenance, cavity foam concrete filling, wall body top filling painting and the like. The construction method has the advantages that adopted machinery, equipment and tools are common in construction sites, the manufacturing is simple, and the preparation is convenient; when the construction method is used, the heat insulation materials and the wall body are completely integrated, and the wall body self heat insulation in the real sense can be realized. The quality and the safety are ensured, meanwhile, the construction period, the cost, the energy saving and the environment protection are sufficiently considered, and the positive significance is realized in aspects such as construction period reduction, labor cost and turnover material rent cost reduction, environment protection and safe and civilized construction.
Description
Technical field
The invention belongs to building energy saving field, particularly a kind of foam concrete-large porosity shale brick outer wall self heat-preserving system construction method.
Background technology
Along with the development of society and the continuous quickening of urbanization process, people have had higher requirement to building in effective utilization and environmental protection of the energy, the energy-saving and cost-reducing new problem becoming building trade and constantly explore.External wall is the primary structure of building, and be also an important content in building operations, external wall not only affects the maintenance of interior of building thermal environment to the isolation effect of heat energy, and has important effect to the application life extending building.Good building exterior wall heat preserving technology is not only conducive to the using function keeping building, can also reduce the cost of building maintenance and repairerment to a certain extent, thus increase economic efficiency.The building self-heat conserving external wall that the present invention implements is that large porosity shale single hole brick and the combination of diplopore brick are built by laying bricks or stones, and Formation cross-section is the wall form in three holes; In interstitial hole, fill with fine-stone concrete form stem stem, both sides cavity charges the light foam concrete with heat-insulating property, to realize wall self-insulation truly; This invention heat-insulating property is good, easy to operate, and operation simplifies, and reliable in quality, can save the duration, reduce costs, have reference.
Summary of the invention
The object of the present invention is to provide a kind of foam concrete-large porosity shale brick outer wall self heat-preserving system construction method.
A kind of foam concrete-large porosity shale brick outer wall self heat-preserving system construction method, is characterized in that, comprise the following steps:
(1) body of wall location, snap the line: carry out body of wall location according to design drawing and building block size and eject relevant position on structural slab;
(2) arrange pin bottom body of wall: the building construction accurately carrying out the first skin building block according to the wall line position ejected;
(3) mesopore single reinforcement stem stem bar planting: carry out single steel bar bar planting with top rebars concrete structured beam Board position by specification and designing requirement in body of wall mesopore corresponding bottom placed in the middle; Bottom reinforcement bars and top rebars all carry out pull-out test;
Body of wall first construction section build by laying bricks or stones, maintenance: after bar planting pull-out test result meets the requirements, carry out the first construction section building wall, guarantee the fissure of displacement in building process, building by laying bricks or stones is highly 1.3 meters, has built rear maintenance three days by laying bricks or stones;
(5) stem stem fine-stone concrete first construction section perfusion: to the first construction section body of wall mesopore position perfusion fine-stone concrete completed;
(6) reinforcing bar First Contact Connections, examination: after the first construction section stem stem fine-stone concrete has poured into and reached final set, adopt first and second construction section stem stem reinforcing bar of single fillet welded mode connecting wall, the second construction section reinforcing bar length should meet all can reach single-sided welding length requirement with the first construction section reinforcing bar and body of wall top rebars;
Body of wall second stage build by laying bricks or stones, maintenance: build below second stage body of wall to top structure beam/plate 200mm position by laying bricks or stones;
(8) reinforcing bar second time connects, checks and accepts: bar planting section at the bottom of the second construction section stem stem reinforcing bar and body of wall roof beam/plate is carried out single-sided welding;
(9) stem stem fine-stone concrete second construction section perfusion: the perfusion of stem stem fine-stone concrete is carried out to the second construction section body of wall mesopore position completed;
(10) wall plastering, maintenance: body of wall four facades are whitewashed, and maintenance three days;
(11) cavity foam concrete perfusion: body of wall both sides enclosed cavity adopts and stirs foaming delivery pump pressure injection foam concrete;
(12) body of wall top filling, to whitewash: adopt common shale brick to build by laying bricks or stones in both sides, body of wall top, middle hole location formwork forms funnel-form, builds fine-stone concrete, repaiies cutter horn mouth after some strength to be achieved, follow-uply to whitewash, whitewash with lower wall body and form entirety.
Body of wall location in step 1, snap the line should be carried out body of wall location according to design drawing and building block size and eject relevant position, and be carried out telltale mark for upper and lower bar planting position on structural slab.
Arrange pin bottom body of wall in step 2 and accurately carry out the building construction of the first skin building block according to the wall line position ejected, control follow-up masonry build by laying bricks or stones skin number, row's brick mode etc. (with guarantee the fissure of displacement build by laying bricks or stones be as the criterion).
Before construction in step 3, first carry out calculating, arranging according to floor height and reinforcing steel implant and welding requirements, determine each section of reinforcing bar length.For ease of site operation, bottom body of wall, bar planting protruded length is unsuitable long, and general value 1500mm(is lower than height), body of wall top bar planting protruded length value 200mm; Reinforcing bar implantation position should be mesopore middle position, and will ensure upper and lower bar planting aligned in position; Bar planting process carries out an acceptance inspection by code requirement, constructed through maintenance after need to do pull-out test.
After bar planting pull-out test result meets the requirements, carry out the first construction section building wall in step 4, guarantee the fissure of displacement in building process, building by laying bricks or stones is highly 1.3 meters, and mortar adopts premixing mortar, and its intensity meets design requirement; Build rear maintenance three days by laying bricks or stones.
In step 5 for complete first construction section body of wall mesopore position perfusion fine-stone concrete, concrete strength grade is C20, cobble-stone diameter controls in 15mm, slump controls at 140mm ± 20mm, carry out placement layer by layer by 0.5 meter of thickness, every layer is watered when smashing and manually uses reinforcing bar or other rod shape thing slowly to plug, and guarantees that concrete is closely knit.
In step 6 after the first construction section stem stem fine-stone concrete has poured into and has reached final set, adopt first and second construction section stem stem reinforcing bar of single fillet welded mode connecting wall, the second construction section reinforcing bar length should meet all can reach single-sided welding length requirement with the first construction section reinforcing bar and body of wall top rebars.
Build second stage body of wall in step 7 by laying bricks or stones to the following 200mm position of top structure beam (plate), construction method is with step 4.
The second construction section stem stem reinforcing bar in step 8 and body of wall roof beam (plate) end bar planting section carry out single-sided welding.
In step 9, the perfusion of stem stem fine-stone concrete is carried out at body of wall second construction section mesopore position, and specific implementation method is identical with step 6.
Body of wall in step 10 four facades whitewash, and whitewash quality and meet design and code requirement, and maintenance three days, make body of wall form enclosed cavity.
Body of wall both sides enclosed cavity in step 11 adopts and stirs foaming delivery pump pressure injection B05 level foam concrete (match ratio cement: 270 kg/m
3, mixing water: 135 kg/m
3, blowing agent: 0.8 kg/m
3, thinned water: 32 kg/m
3), select force value to be 3Kpa, conduit is placed on bottom wall cavity and pours into, and control irrigation rate is 0.5L/min; Pouring into and checked for latter second day, having carried out secondary supplementary irrigation to there being sedimentation situation; After finally completing perfusion, surface layer cleaning need be carried out, strike off, guarantee that subsequent construction can be carried out smoothly.Light thermal-insulation foam concrete configuration volume is:.
The top seam that carries out after building wall completes 14 days in step 12 is clogged; Adopt common shale brick to build by laying bricks or stones in both sides, body of wall top, its top and position, structural beams space adopt after antiseptic timber wedge jam-packed, and polymer cement mortar plug is real; Middle hole location formwork forms funnel-form, and horn mouth level height, higher than body of wall tip position 50mm, builds the fine-stone concrete of C25 intensity, repaiies cutter horn mouth after reaching 80% intensity, follow-uply whitewashes, and whitewashes form entirety with lower wall body.
The present invention has following advantage: 1. quality aspect, and conventional outer wall heat insulation system operation is more, difficulty of construction large, thus causes quality control all linked with one another, very easily occurs hidden danger of quality, easily affects by weather condition in work progress simultaneously; And construction method easy construction of the present invention, be easy to operation, only need guarantee in light thermal-insulation foam concrete filling process that perfusion is closely knit and can guarantee building heat preserving requirement.Phenomenons such as after coming into operation, adopting the exterior wall of conventional vacuum way, hollowing easily appears in facing, flake, cause the later stage to use percolating water, extremely difficulty is reprocessed.Construction method of the present invention is directly decorated on the face of plastering of metope, as long as constructor is strictly by specification of plastering, scheme construction, quality easily controls.2. security civilization aspect, heat preservation construction process workman only need in the special grouting equipment construction of floor built-in function, safe ready, simultaneously, in hidden fire-fighting danger, the present invention has the not comparable advantage of conventional vacuum construction, and work progress is substantially without inflammable, combustible material; Outrigger is closed, and reduces falling object from high altitude hidden danger.3. duration aspect, if by traditional exterior-wall heat insulation method, just can carry out the construction of decorative layer after building wall completes after the numerous and diverse operation of multiple tracks such as carry out base cleaning, heat insulating material is constructed, wipe one's face of still needing.And adopt foam concrete-large porosity shale brick outer wall self heat-preserving system construction method, after wall light heat insulation foam concrete has been constructed, just can carry out the construction of decorative layer, simplify construction process, effectively shorten the duration.4. economic aspect, different heat insulation system operating expenses: (1) adopts polyphenyl particle heat-insulating mortar, exterior-wall heat insulation unit price about 40 Yuan/㎡.(2) extruded polystyrene board insulation is adopted, exterior-wall heat insulation unit price about 32 Yuan/㎡.(3) foam concrete-large porosity shale brick outer wall self heat-preserving system is adopted, exterior-wall heat insulation unit price about 27 yuan/㎡.Comparative descriptions, this outer wall self heat-preserving system relatively economical.5. energy-conserving and environment-protective aspect, materials for wall used is large porosity shale brick, and carry out scale processing according to wall size, greatly reduce and make consumptive material needed for walling and build loss by laying bricks or stones, compared with traditional building block, in walling making, 37.6% is reduced to the collection capacity of natural resource, reduce the destruction to environment; The use of shale brick and light thermal-insulation foam concrete, reduces the deadweight of body of wall, thus can reduce concrete strength and the reinforcement ratio of structural bearing component, saves material; Light thermal-insulation foam concrete main raw material(s) is water, cement and blowing agent, basic noiselessness and airborne dust in filling process.
Accompanying drawing explanation
Fig. 1 is footing row's brick and bar planting schematic diagram.
Fig. 2 is stem stem bar connecting schematic diagram.
Fig. 3 builds schematic diagram by laying bricks or stones body of wall first time.
Fig. 4 waters to smash schematic diagram stem stem fine-stone concrete first time.
Fig. 5 is that body of wall second time builds schematic diagram by laying bricks or stones.
Fig. 6 is that stem stem fine-stone concrete second time is watered and smash schematic diagram.
Fig. 7 is wall plastering schematic diagram.
Fig. 8 is that both sides cavity light thermal-insulation foam concrete waters and smashes schematic diagram.
Fig. 9 plants bar connecting schematic diagram at the bottom of stem stem reinforcing bar and wall back timber in advance.
Figure 10 is both sides, wall top cavity area shale brick filling schematic diagram.
Figure 11 is that region, stem stem wall top fine-stone concrete finally pours into a mould schematic diagram.
Figure 12 is that schematic diagram is whitewashed at wall body top.
specific implementation method
1, foam concrete-large porosity shale brick outer wall self heat-preserving system construction method is described in detail as follows:
(1) line setting.According to construction drawing and building block size, unwrapping wire is positioned to body of wall position, and telltale mark is carried out for upper and lower bar planting position.
(2) footing row brick.Carry out footing row brick according to the position line ejected, control follow-up masonry build by laying bricks or stones skin number, row's brick mode etc. (with guarantee the fissure of displacement build by laying bricks or stones be as the criterion).
(3) stem stem bar planting and examination.Before construction, first carry out calculating, arranging according to floor height and reinforcing steel implant and welding requirements, determine each section of reinforcing bar length.For ease of site operation, bottom body of wall, bar planting protruded length is unsuitable long, and general value 1500mm(is lower than height), body of wall top bar planting protruded length value 200mm; Reinforcing bar implantation position should be mesopore middle position, and will ensure upper and lower bar planting aligned in position.Bar planting process carries out an acceptance inspection by code requirement, constructed through maintenance after need to do pull-out test.
(4) large porosity shale brick is built by laying bricks or stones and bar connecting.The main brick of large porosity shale (240*290*190 diplopore) and auxiliary brick (240*140*190 single hole) carry out combination and build by laying bricks or stones, upper hypodermis switch, the upper and lower fissure of displacement, full of mortar.Building wall is divided into two stages, first stage builds 1.3 meters high by laying bricks or stones, and second stage builds 200mm position below at the bottom of the periphery beam of floor top by laying bricks or stones, builds Altitude control at every turn by laying bricks or stones and is guaranteeing every section of stem stem reinforcing steel bars exposed 200mm, be convenient to bar connecting, bar connecting adopts single-sided welding.
(5) stem stem perfusion fine-stone concrete.Stem stem perfusion fine-stone concrete is divided into two construction stages according to building wall operation, first stage building wall to 1.3 meter, 200mm below at the bottom of second stage building wall to floor top periphery beam, per stage building wall completes and maintenance implements the perfusion of stem stem fine-stone concrete in three days afterwards.Before perfusion concrete, perform tri-inspection system degree, can next procedure construction be carried out after management acceptance(check).Fine-stone concrete intensity is C20, and cobble-stone diameter controls within 15mm, and slump controls at 140mm ± 20mm.Control rate of flooding in work progress, during perfusion, adopt layering perfusion by every layer of 50cm, often pour into one deck and adopt segment length's bar reinforcing bar or other rod shape thing always to carry out pulling and pushing vibrating, to guarantee stem stem fine-stone concrete compactness.
(6) light thermal-insulation foam concrete perfusion.Perfusion foam concrete front wall body need be plastered, and forms enclosed cavity.Wait plastering maintenance after three days, carry out the perfusion of light thermal-insulation foam concrete, perfusion scene at least needs two people to carry out coordinative construction, and strict control injection pressure and speed, injection pressure general control is at 3Kpa, and irrigation rate controls at 0.5L/min.Pouring into and checked for latter second day, having carried out secondary supplementary irrigation to there being sedimentation situation.After finally completing perfusion, surface layer cleaning need be carried out, strike off, guarantee that subsequent construction can be carried out smoothly.Light thermal-insulation foam concrete configuration volume is: cement: 270 kg/m
3, mixing water: 135 kg/m
3, blowing agent: 0.8 kg/m
3, thinned water: 32 kg/m
3.
(7) top seam filling.Top seam filling is carried out after building wall completes 14 days.Need body of wall horizontal plane to strike off, clean out before filling, and it is moistening to water.Two ends, masonry long limit adopt ordinary sinter shale brick to build by laying bricks or stones in conjunction with mortar, and its top and position, structural beams space adopt after antiseptic timber wedge jam-packed, and polymer cement mortar plug is real; Middle part hole utilizes formwork erection horn mouth, pouring fine-stone concrete.
(8) plaster in body of wall top.Clear up for body of wall top base layer, comprise the unnecessary concrete of fine-stone concrete horn mouth and cut, follow-up this position surrounding of carrying out is plastered.
2, quality control is described in detail as follows:
1, the constructure scheme that before construction, establishment is reasonable, feasible, and organize and implement after supervisor's examination & verification approval, confide a technological secret before enforcement.
2, material pass is maintained strict control over.All materials of marching into the arena must have relevant certificate of qualification or quality assurance list, and reinforcing bar, cement, sand, building block, mortar, fine-stone concrete etc. need have retrial return on qualification.
3, rebar-planting quality controls
3.1 borings: boring aperture should than the large 4-6mm of implantation bar diameter, and being 10d when drilling depth is concrete strength >=C30, is 13d when being less than C30.
3.2 clear holes: should clear up immediately after boring, wipe hole wall ashes with brush, and blow off the ashes in boring with compressed air, then use clean object temporary plugging aperture, in case dust, the foreign material such as sand grains fall into, guarantee that hole is clean, to strengthen the adhesion stress of hole wall and anchoring adhesive.
3.3 bar planting surfacings: bar planting first should pass through physical test, adopt Mechanical Method or wire brush removing bar planting surface iron rust and oxide layer, then remain greasy dirt with the third bronze medal removing, and treated reinforcing bar should, as early as possible in implant holes, be avoided again polluting.Quality control key is reinforcing bar implant part surface clean, to increase the adhesion stress with structure glue.
3.4 structure glue perfusions: most of structure glue is bicomponent material, gos deep into bottom pore-forming with proboscis utensil, by squeezer by glue filling perforation discharge air gradually from the inside to surface in hole, injecting glue amount is 1/2 ~ 1/3 of hole depth.Quality control key is the injecting glue end of from, and colloid must not have bubble to exist.
3.5 reinforcing bars are implanted: by desired depth in the slow advances through hole of bar planting handled well.Quality control key is that bar planting must slowly screw in.
3.6 is curing: the maintenance at normal temperatures of the reinforcing bar in implant holes to use structure glue to consolidation stipulated time, period must not disturbance.
4, building wall
4.1 build by laying bricks or stones before, it is moistening that brick should shift to an earlier date 1d ~ 2d appropriateness, must not adopt hacking or water suction saturation state brick masonry.
4.2 strictly control gray seam thickness.Horizontal mortar joint and perpends thickness are preferably 10mm, and should not be less than 8mm, also should not be greater than 12mm.Perps should adopt slurry-scraping method, builds by laying bricks or stones after first smearing mortar again.
The verticality of 4.3 masonries, surface finish, gray seam thickness and full degree of mortar at bed joint, all should check at any time and correct before mortar final set.
Build height 4.4 every days by laying bricks or stones and must not be greater than 1.5m.
4.5 quality control on construction grades should perform by the regulation of existing national standards " masonry structure engineering construction quality standards of acceptance " GB50203.
5, stem stem perfusion fine-stone concrete
Before 5.1 stem stem perfusion fine-stone concretes, application water rinses, moistening hole wall.
After 5.2 masonry mortar intensity are greater than 1.0MPa, mesopore concrete can be poured into.
5.3 often build about 500cm height, answer tamping once, or build while with the tamping of plug-in type instrument.
The transport of 5.4 stem stem fine-stone concretes, build, maintenance, end product quality, the requirement of existing national standards " concrete structure engineering construction quality accident specification " GB50204 should be met.
6, cavity perfusion light thermal-insulation foam concrete.
Before 6.1 cavity perfusion light thermal-insulation foam concretes, wall body need carry out entirety and whitewash, and forms enclosed cavity, prevents from leaking outside, whitewash maintenance and can carry out lower step construction after three days.
Should examination proportioning be carried out before 6.2 perfusions, and do and be incubated test accordingly, can pour into after pass the test.
6.3 strictly control irrigation rates at 0.5L/min, avoid that irrigation rate is too fast occurs air layer.
The body of wall that 6.4 same day poured into, must check every other day, and occurring sinking situation need carry out secondary supplementary irrigation.
3, security control is described in detail as follows:
1 item manager branch sets up safety assurance system, before construction, person in charge of the technology aspect and security official to bar planting, build by laying bricks or stones, whitewash, teams and groups of being in the milk carry out safety and tell somebody what one's real intentions are and safety education, and formed and writtenly to tell somebody what one's real intentions are, educate record.
2 charge operation personnel should observe the pertinent regulations such as " construction safety check criteria " (JGJ 59), " building operations high-rise working technical specification of security " (JGJ 80), " job site temporary electricity technical specification of security " (JGJ46), " building machinery use safety tecnical regulations " (JGJ33).
3 enter job site, and Safety helmets must be worn, fastens seat belts during high-rise working, and outrigger construction part needs to carry out Seal treatment up and down and outside support body.
Protective gloves should be worn, protection hand skin during 4 construction.
5 bar plantings, mortar mixing, site operation illumination etc. relate to electricity consumption operation, need carry out safety measures for power consumption.
6 build by laying bricks or stones and whitewash and should set up by the constructure scheme through examination and approval with scaffold, and should meet the regulation of national existing relevant scaffolde technical specification of security.After acceptance(check), must not arbitrarily remove and change scaffold.
7 floor dischargings and get the raw materials ready and should not concentrate stacking, must not exceed the design live load standard value of floor.
The security against fire at 8 engineering construction scenes should meet the pertinent regulations of existing national standards " the on-the-spot security against fire technical specification of engineering construction " GB50720.
In 9 slip casing by pressure processes, the security performance of plant equipment need be guaranteed, avoid operate miss and occur pressure hurt sb.'s feelings thing occur.
10 note carrying out facing limit construction safety protection measure.
4, environment protection control is described in detail as follows:
When the establishment safety in production of 1 project management department, civilized construction special scheme, content comprises civilized construction, environmental protective measure; and in work progress, be strict with operation team in accordance with " construction site environment and sanitary standard " (JGJ 146), and operation team is told somebody what one's real intentions are.
2 on-the-spot bar planting personal managements, arrange movable simple sound absorption equipment in bar planting process, anchoring adhesive waste material centralized recovery every day, process, forbid arbitrarily abandoning.
What should there be windproof, sound insulation 3 job sites for the mixer stirring premixing mortar and light thermal-insulation foam concrete closedly goes along with sb. to guard him facility, and installs dust arrester, and its noise level limit should meet the provisions of the relevant regulations issued by the State.
4 in mortar, fine-stone concrete, the stirring of light thermal-insulation foam concrete, transport, use procedure, and omitting material should recycle, and the sewage that wash machine produces, should recycle after sedimentation basin precipitation process.
5 high-rise workings must not shed material, rubbish, dust and waste water etc.
6 operating area rubbish should clean out in sky, the building waste produced in work progress, should carry out classification process.
7 carry on construction work at night is no more than 22 points.On-the-spot night illumination adopts optically focused facility, towards works area, must not throw light on a large scale.
The 8 regular watering and lowering dusts in job site.
Claims (6)
1. foam concrete-large porosity shale brick outer wall self heat-preserving system construction method, is characterized in that, comprise the following steps:
(1) body of wall location, snap the line: carry out body of wall location according to design drawing and building block size and eject relevant position on structural slab;
(2) arrange pin bottom body of wall: the building construction accurately carrying out the first skin building block according to the wall line position ejected;
(3) mesopore single reinforcement stem stem bar planting: carry out single steel bar bar planting with top rebars concrete structured beam Board position by specification and designing requirement in body of wall mesopore corresponding bottom placed in the middle; Bottom reinforcement bars and top rebars all carry out pull-out test;
Body of wall first construction section build by laying bricks or stones, maintenance: after bar planting pull-out test result meets the requirements, carry out the first construction section building wall, guarantee the fissure of displacement in building process, building by laying bricks or stones is highly 1.3 meters, has built rear maintenance three days by laying bricks or stones;
(5) stem stem fine-stone concrete first construction section perfusion: to the first construction section body of wall mesopore position perfusion fine-stone concrete completed;
(6) reinforcing bar First Contact Connections, examination: after the first construction section stem stem fine-stone concrete has poured into and reached final set, adopt first and second construction section stem stem reinforcing bar of single fillet welded mode connecting wall, the second construction section reinforcing bar length should meet all can reach single-sided welding length requirement with the first construction section reinforcing bar and body of wall top rebars;
Body of wall second stage build by laying bricks or stones, maintenance: build below second stage body of wall to top structure beam/plate 200mm position by laying bricks or stones;
(8) reinforcing bar second time connects, checks and accepts: bar planting section at the bottom of the second construction section stem stem reinforcing bar and body of wall roof beam/plate is carried out single-sided welding;
(9) stem stem fine-stone concrete second construction section perfusion: the perfusion of stem stem fine-stone concrete is carried out to the second construction section body of wall mesopore position completed;
(10) wall plastering, maintenance: body of wall four facades are whitewashed, and maintenance three days;
(11) cavity foam concrete perfusion: body of wall both sides enclosed cavity adopts and stirs foaming delivery pump pressure injection foam concrete;
(12) body of wall top filling, to whitewash: adopt common shale brick to build by laying bricks or stones in both sides, body of wall top, middle hole location formwork forms funnel-form, builds fine-stone concrete, repaiies cutter horn mouth after some strength to be achieved, follow-uply to whitewash, whitewash with lower wall body and form entirety.
2. construction method according to claim 1, is characterized in that, in step 3, bottom reinforcement bars stretches out structural plane 1500mm, and top rebars stretches out structural plane 200mm.
3. construction method according to claim 1, is characterized in that, in step 5, fine-stone concrete strength grade is C20, and cobble-stone diameter controls in 15mm, highly carries out placement layer by layer by every layer of 50cm, forms single reinforcement fine-stone concrete stem stem.
4. construction method according to claim 1, is characterized in that, in step 10, after body of wall four facades whitewash, makes body of wall both sides cavity form relative airtight cavity.
5. construction method according to claim 1, is characterized in that, in step 11, adopts B05 level foam concrete (match ratio cement: 270 kg/m
3, mixing water: 135 kg/m
3, blowing agent: 0.8 kg/m
3, thinned water: 32 kg/m
3) carry out compression pump perfusion, select force value to be 3Kpa, conduit is placed at the bottom of cavity and pours into, and control irrigation rate is 0.5L/min.
6. construction method according to claim 1, is characterized in that, in step 12, horn mouth level height is higher than the above 50mm in structural beams (plate) end; After intensity reaches 80%, cutter is repaiied to horn mouth.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322436A (en) * | 2018-11-09 | 2019-02-12 | 朱新伟 | Assembled cylinder |
| WO2020107313A1 (en) * | 2018-11-29 | 2020-06-04 | 陈韦丞 | Combination wall formed by reinforced bricks |
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| WO2020107313A1 (en) * | 2018-11-29 | 2020-06-04 | 陈韦丞 | Combination wall formed by reinforced bricks |
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| CN104831831B (en) | 2017-02-01 |
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