CN102926524A - Injecting technology for implanting CA (cement asphalt) mortar in multi-storey workshop floor layer - Google Patents
Injecting technology for implanting CA (cement asphalt) mortar in multi-storey workshop floor layer Download PDFInfo
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- CN102926524A CN102926524A CN201210385707XA CN201210385707A CN102926524A CN 102926524 A CN102926524 A CN 102926524A CN 201210385707X A CN201210385707X A CN 201210385707XA CN 201210385707 A CN201210385707 A CN 201210385707A CN 102926524 A CN102926524 A CN 102926524A
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Abstract
The invention relates to an injecting technology for implanting CA (cement asphalt) mortar in a multi-storey workshop floor layer. The construction technology process comprises the following steps of: construction preparation, filler strip placement, panel installation, compression device installation, edge sealing treatment, CA mortar blending, CA mortar injection, maintenance and the like. According to the injecting technology provided by the invention, the vibration is not required during the injection process, the noise pollution caused by the vibration is prevented, and the energy consumption is saved; the usage of a plurality of mineral doped materials in the CA mortar is beneficial to the resource conservation and the environment protection; and on the other hand, the construction method of implanting the CA mortar in the floor layer is simple, and the floor layer after reinforcement is in consistent compatibility with a structure layer and a panel layer, so that a favorable integral shock absorption effect is realized, the durability is good, the maintaining cost is low, and the significant social benefit is profound and lasting.
Description
Technical field
The damping that the present invention relates to various members in the various concrete structures that are in for a long time under the equipment load action such as industrial premises, bridge, railway, tunnel is processed, and especially a kind of CA mortar is implanted multi storied factory building floor layer instillation process.
Background technology
The products such as some precision optical machineries, precision instrument, optics industry in process of production in order to guarantee product quality, all require building to take certain vibration protection in modern industry.The precautions against earthquakes of factory building divide work two classes basically, one class is positive shock insulation, that the machinery equipment that produces vibration source is taked rational vibration isolation and vibration absorbing measures, this measure is to have the machinery equipment of dynamic loading large with elasticity and damping, the material of high-strength durable or other elastic body and ground are kept apart, thereby reach vibrationproof.Another kind ofly be the long-pending vibrationproof that disappears, such as the vibration of People's Bank of China's wagon flow etc., because the vibration source scope is wide, Vibration Condition is changeable, can't carry out the active vibration isolation measure, can only take some vibration isolation measures to production department or precision equipment itself.
CA mortar (Cement Asphalt Mortar, cement asphalt mortar) cushion technique belongs to passive vibrationproof technology, is that high-speed railway CRTS plate-type is without the core technology of tiny fragments of stone, coal, etc. surface layer.The CA mortar is a kind ofly to be comprised of raw material such as cement, mulseal, fines, water and multiple Admixtures, a kind of novel organic/inorganic composite material that forms with the cementing acting in conjunction of pitch breakdown of emulsion through the hydrated cementitious sclerosis.Its characteristics are to couple hardness with softness, and take flexibility as main, have rigidity concurrently.Cement asphalt mortar is filled between the surface layer plate and concrete bed that thickness is about 50mm, effect is the effects such as bearing surface laminate, buffering bullet train load and damping, and the quality of its performance has significant impact to comfortableness and safety and the operation maintenance cost etc. of ride comfort, durability and the train operation of plate-type ballastless surface layer structure.This technology is mainly used on the high ferro railway at present, and the high-speed railway that article one is used CRTS II type CA mortar is the Beijing-Tianjin inter-city Line for Passenger Transportation.Central Beijing-Shanghai, the high speed railways such as force is wide, Zheng Xi, Shanghai and Nanjing, Ningbo-Hangzhou of at present built and construction have all adopted cement asphalt mortar.
Patent CN101851884A provide a kind of can improve lay precision and construction quality be suitable for severe cold area CRTS1 plate-type without the engineering method of track construction yesterday.Severe cold area CRTS1 plate-type is without track slab pavement engineering method yesterday, comprise successively following operating procedure: roadbed and CPIII establishment of control net, basal plane is processed, construction survey, the base construction, the convex blocking platform construction, the base surface layer is processed, and CA mortar injection bag is laid, track slab pavement, track slab precision adjustment, the resin infusion bag is installed around the CA mortar injection, convex blocking platform, resin perfusion around the convex blocking platform, the work plane cleaning, described track slab precision adjustment adopts prism frame method, and described prism frame method is: after the foundation of CPIII control point is finished, lay 2 every track plates bolts at two ends hole site and measure frames, behind the Free Station with Total Station electronic Thacheometer, measure the spherical prism on the frame, survey data represents the actual three-dimensional coordinate of track plates, theory of computation D coordinates value and the difference of surveying D coordinates value, with two-way adjuster track plates is carried out accurate adjustment, until deviate satisfies code requirement.
Patent CN 101899802A provides a kind of Line for Passenger Transportation without yesterday track CRTS-II type track slab pavement CA mortar injection formwork system and the instillation process that adopts it to finish.Line for Passenger Transportation is without track CRTS-II type track slab pavement CA mortar injection formwork system yesterday, comprise angle type exterior sheathing, vertical side of exterior sheathing and track plates and fit with the top of base, binding face is provided with encapsulant, and exterior sheathing is provided with the steam vent that communicates with reperfusion space; The exterior sheathing in the track plates outside is fixed by hold down gag, described hold down gag comprises connecting rod, connecting rod one end is established and can be drawn together the fixed head on the bolt under the fastener, and the bottom of the other end arranges the cam gear spanner that is used for compressing exterior sheathing and joint place, track plates side; Exterior sheathing between the adjacent orbit plate is fixed by the anchor clamps on the concrete that may be stuck in the track plates joint, and described anchor clamps comprise inner vertical plate and the outer vertical plate that is connected by band steel, and the inboard of outer vertical plate is provided with mould iron.
Patent CN101748665A provides a kind of laying method of fragment-free track slab.Comprise the steps: the selection of infusion bag and laying, the thick shop of track plates, accurate adjustment, the preparation of CA mortar and the perfusion of track plates, perfusion, CA mortar and the health of boss resin of boss resin.Good effect of the present invention is: owing to having adopted total powerstation, the positioning rail guidance tape makes the actual three-dimensional coordinate of track plates satisfy required precision with theory three-dimensional coordinate difference after adjusting quickly and accurately; Can season oneself to cold the well construction environment in area of the match ratio of CA mortar and instillation process, can satisfy to greatest extent the quality after pouring into: the instillation process of boss resin has also adapted to the construction environment of cold district well.
Summary of the invention
The present invention will solve the shortcoming of above-mentioned prior art, provides a kind of CA mortar to implant multi storied factory building floor layer instillation process.This technique is transformed into the application of CA mortar in the multi storied factory building floor layer first, obviously improves the noise pollution of factory building and vibratility and damages, and is convenient to simultaneously the carrying out of construction of hydropower, reduces factory building Aseismatic Design cost of investment, also significant prolongation the application life of factory building.
The present invention solves the technical scheme that its technical problem adopts: this CA mortar is implanted multi storied factory building floor layer instillation process, and construction technology process is divided into: the steps such as CA mortar processed, CA mortar injection, maintenance are processed, mixed to preparation of construction, filler strip arrangement, erecting of panel, installation hold down gag, edge sealing.
The floor layer of factory building mainly is comprised of surface layer, deck and ceiling layer, and is different according to the use function of building, also extra play can be set in floor layer.Surface layer is positioned at the superiors of floor layer, plays a part the protection floor, bears and transmit load, to indoor very important cleaning and decoration function is arranged simultaneously; Deck is comprised of members such as beam or arch, plates, and bear the various loads on it and load is passed to wall or the post of load-bearing, be core level in the floor layer; The ceiling layer is positioned at the floor layer orlop, Main Function be protection floor, mounted lamp, decoration indoor, lay the line etc.; Extra play claims again functional layer, arranges according to the specific requirement of floor layer, as sets up waterproofing course, vapour barrier, insulation layer, corrosion-resistant coating, shakeproof layer etc.
This technology is applied in the factory building of damping requirement, on the floor slab structure layer, by base and the built on stilts building panel of installing of filler strip, with bolt building panel is fixed in the floor basic unit first, then perfusion CA mortar buffer layer between deck and panel.CA mortar good fluidity need not to vibrate, and can fill closely knit.Vertical intensive super thick Bars In Poured Concrete Slab adopts the combined system of building panel and non collapsible base and filler strip, panel is arranged according to the structural plan and is done modular design, adopt a large amount of standard panels and the sketch plate of minority, improve the efficient of plant produced and on-site consolidation, the standard panel adopts the form of two holes, four orifice plates, flexible combination according to construction module.
As preferably, use sprayer that bed plate concrete pavement and surface layer plate bottom surface is moistening before the grouting, when air themperature＞20 ℃, after grouting face is moistening all grout holes and steam vent are carried out capping, keep grouting face moist.
As preferably, want controlled grouting speed during the grouting of surface layer plate, do not want too fast also can not be excessively slow, a general plate was advisable with 3～5 minutes, controlled perfusion rhythm well, stirred enough side's amounts, pause in the middle of forbidding during the grouting of surface layer plate, and guarantee Continuous Perfusion, absolute prohibition secondary pouring.
As preferably, the grout hole that the surface layer plate is set can add pvc pipe, and mortar has enough height after the grouting, and its pressure differential is built fully guaranteeing, draws out unnecessary mortar after the mortar initial set again; Simultaneously at three steam vents of surface layer plate superelevation one side flexible pipe is set, the flexible pipe mouth of pipe exceeds at the bottom of the surface layer plate approximately 2cm, can shutoff after flexible pipe is discharged slurries; Strict controlled grouting speed is fully got rid of to guarantee gas; The edge sealing mortar must be firm, adopts in case of necessity tool bracing to reinforce; To guarantee the slurries of steam vent discharge capacity in the filling process, after steam vent is discharged normal slurries, still will continue to discharge a part of slurries, to guarantee the Bas Discharged of shutoff under the surface layer plate, the plumpness thereby assurance is in the milk.
As preferably, before perfusion CA mortar, the place of guaranteeing to inject before the CA mortar injection, is measured its flowing time without ponding and other harmful foreign material, check mortar temperature and air content.
As preferably, at four jiaos of mounting limit devices of panel layer, then carry out the CA mortar injection after the panel layer accurate adjustment, with panel layer change in displacement in the dial gage controlled grouting process, guarantee the accurate of panel layer position.
As the buffering packing material of buffer layer, answer existing certain elasticity, certain intensity is arranged again.Strength of cement mortar is enough high, but elasticity is not enough, the pitch good springiness, but intensity is low, temperature influence is large, therefore adopted the cement asphalt mortar with the two combination, it is the CA mortar, it is generally by mulseal, water, cement, fines, the compositions such as various Admixtures are the flexible a kind of semi-rigid mortars with concrete rigidity and pitch, and its major function is as adjusting layer, fill the space between panel and the concrete foundation deck, satisfy the needs that the construction of precast concrete plank and field panel is laid, on the other hand, this adjustment layer can be provided by the elastic buffer effect that provides board-like surface layer certain.The same with ordinary concrete, there are certain corresponding relation in the modulus of elasticity of CA mortar and intensity.Usually, compressive strength is high, correspondingly modulus of elasticity is large, in the strength range of above-mentioned CA mortar, the researcher is in the test of the various mortar prescriptions of configuration, carry out lot of experiments, determined that 28 days modulus of elasticity scope of mortar is 200-600Mpa, can satisfy the long duration load cushioning effect of general plant and equipment.
Inventing useful effect is: the present invention need not to vibrate in casting process, has avoided because the noise pollution of vibrating and causing has been saved energy consumption simultaneously, and the use of a large amount of mineral admixtures is conducive to economize on resources protection of the environment in the CA mortar; On the other hand, adopt the CA mortar implant floor layer job practices simple, compatible with panel layer with deck consistent after reinforcing, have good integral shock-absorbing effect, good endurance, maintenance cost is low, social benefit is far-reaching.
Description of drawings
Fig. 1 is the structural representation of hold down gag;
Fig. 2 is the structural representation that edge sealing is processed;
Description of reference numerals: panel 1, deck 2, inverted triangle 3, steam vent 4, L-type steel 5, bolt 6.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing:
Embodiment:
Overall construction process of the present invention in turn includes the following steps: CA mortar processed, CA mortar injection, maintenance are processed, mixed to preparation of construction, filler strip arrangement, erecting of panel, installation hold down gag, edge sealing.
Preparation of construction: unit in charge of construction and supervisor should determine to specialize in operating personnel and the experimental examination personnel of cement asphalt mortar critical process construction, and personnel need can be on duty after professional training.Unit in charge of construction should for the characteristics of the factors such as designing requirement, construction technology and construction environment, together with design and management side, formulate quality control and the safeguard measure of construction overall process jointly.Unit in charge of construction should carry out cement asphalt mortar technique and Mix Ratio Test for different construction seasons, verifies and improve the construction technology of cement asphalt mortar, pinpoints the problems and in time adjusts.Unit in charge of construction should formulate careful constructure scheme, should formulate especially clear and definite cement asphalt mortar maintenance scheme.
Filler strip is settled: at first carry out the deck surfacing, the base surface cleaning is clean, emit base profile boost line, determine the placement location of base, with pneumatic shovel surface of base is peelled off 10～20mm, cut a hole into pitted skin, blow foreign material off with compressed air, use the moistening concrete surface of tap water 10 minutes, blow ponding off, base surface must not splash into greasy dirt, is convenient to the bonding of the new and old layer of deck and functional layer.Next carries out the base setting, place diaphragm capsule in the position that sets, the concrete that stirs is poured in the box, every layer of 15～30mm is advisable, make firm by ramming with clean mallet without oil immediately, smash to " sweating " be the laitance ease till surface concrete placing again, ramming is until reach requirement again, low arc around high in the middle of concrete surface should become is in order to discharge air when placing backing plate.Base and deck limit deviation ± 0.5mm, the high deviation of adjacent pads coordinate is ± 0.3mm on the same plane.Carry out at last filler strip and install, set the filler strip seat after, pad is put filler strip above the backing plate seat, filler strip length is set according to actual factory building size and material limit, and generally at 0.200～0.400m, the filler strip specification should strictly be unified, especially filler strip thickness requires at 5～15mm.By industrial glue bonding, after deploying, the high deviation of adjacent filler strip coordinate is ± 0.3mm on the same plane between filler strip and the base.
Erecting of panel is processed with compression: before erecting of panel, the plane positioning of counter plate is carried out repetition measurement, also needs simultaneously the technical indicators such as counter plate numbering, size, planeness, radian to check.In erecting of panel, install from the centre to the erection sequence that the both sides symmetry is carried out, got on, get off according to the division size of stencil design; Strictly to joint dislocation and plan-position between the planeness of template, the adjacent panels, absolute altitude is controlled, adopt first interim link between the adjacent panels, behind the erecting of panel of whole factory building, every panel is carried out Joint regulation, with guarantee absolute altitude, plan-position, size and panel plate face smooth smoother, slab joint is smooth vertical and horizontal.For satisfying the requirement of CA mortar counter plate system stability, rigidity in casting process, counter plate must be installed hold down gag, when the side hold down gag is installed, L-type steel 5 positions are set press close to the corner, punch with electric percussion drill, the degree of depth is 10～15cm, bolt 6 is progressively tightened, and bolt 6 must perpendicular to panel 1, couple together panel 1 and deck 2 by bolt 6, make it to be fixed on the former member, such as Fig. 1; The operation of middle pressure device and side pressure roughly the same but compress two panels simultaneously.Lay completely in the unit, check peripheral non collapsible typing face plate edge and axis and whether coincide, if error occurs, then should strive for error is digested in closing on the unit according to the deviation situation, must guard against deviation accumulation.
Edge sealing is processed: before edge sealing work begins, note cleaning structure layer, surface layer plate surface and part in addition thereof.Before edge sealing, water panel, filler strip, base, be combined closely with the edge sealing place to guarantee the edge sealing mortar, enough moistening sign is the moistening of mattness, little puddle must be got rid of.The panel layer edge sealing carries out floating or grinding process for the part that does not satisfy the planeness requirement with mortar, guarantees not spillage of edge sealing place.Fill with grouting material for larger slit, be piled into inverted triangle 3, seam is filled out extremely.3 places arrange ventilating pipe 4 at inverted triangle, and ventilating pipe 4 should pass the base press strip as far as possible, guarantee that internal pressure is unobstructed as far as possible, must not make exhaust opening down, such as Fig. 2.Steam vent (before grouting) after the grouting frock is finished checks, determines that steam vent and plate chamber connect, and for freeboard section, 2 steam vents are stayed in short limit (vertically) suggestion, and flash (vertically) suggestion is stayed 4; 4 of the every side of straightway (vertically) suggestions laterally all can not stayed.The panel joint filling can be carried out simultaneously with fixing.The mortar lamination needs 1h to solidify, and should avoid personnel to trample during this.In grouting, as being arranged from edge sealing, slurry spills, and the rubber and plastic boards at reply edge sealing spillage place is reinforced compression, and as shutting, available fast setting cement seals.
Mix CA mortar processed: the cement asphalt mortar raw material should require to carry out accurate weighing in strict accordance with the construction match ratio, and weighing maximum allowable offset (by weight) should meet the following requirements: mulseal ± 1%, siccative ± 1%, Admixture ± 0.5%, mixing water ± 1%, defoamer ± 0.5%.Cement asphalt mortar should adopt special equipment to carry out mix, and raw material should adopt the election weighing system metering.Equipment and metering system can use after checking, and should check once at least equipment and measurement instrument weekly when normally using.Carry out cement asphalt mortar under hot season or the low temperature and mix when processed, should take corresponding measure control material temperature, to guarantee mortar mixture temperature.An amount of agitation of cement asphalt mortar is preferably the specified mixed capacity 30～80% of mixing plant, and concrete amount of agitation is according to bedding mortar thickness process calculative determination.
CA mortar injection: before the cement asphalt mortar construction, should be for engineering characteristic, ambient conditions and execution conditions Design Fundamentals perfusion scheme, carry out real chi perfusion test, performance, surface layer plate expansion situation to cement asphalt mortar are measured, take off the plate inspection to filling with the plate effect simultaneously, the bonding situation of check surface laminate and cement asphalt mortar, cement asphalt mortar surface state, plate bed load slurry fullness degree etc. are determined the instillation process of cement asphalt mortar with this.In the cement asphalt mortar filling process, must not change without reason pre-determined perfusion scheme.In asphalt cement mortar cart, stir the CA mortar, be discharged in the pans.Utilize forklift or crane that pans are winched to from panel 2～3m place, open first the pans switch, after open the grout pipe switch, will be in the milk at a slow speed former seconds, after the air in the grout pipe is all drained, at full speed grouting; Observe the filling process in steam vent and other two grout holes, when middle steam vent began to begin to fill up in plasma discharge or other two grout holes, the filling speed that just slows down guaranteed that the perfusion of cement asphalt mortar should once be finished.During the cement asphalt mortar perfusion, should continue mortar is carried out stirring at low speed.Should inject by hopper during the cement asphalt mortar perfusion, the drop height degree that freely inclines should not be greater than 1.5m, to avoid the laminated segregation of cement asphalt mortar.During the cement asphalt mortar perfusion, to be seen to steam vent outflow mortar, and after confirming that bubble is discharged fully, in time steam vent is carried out shutoff.Finish, can stop perfusion behind the highest point mortar certain altitude at the bottom of the high ejecting plate of hopper mortar until the steam vent shutoff, concrete condition is determined according to the floating situation of construction technology, mortar performance and the surface layer plate determined.When temperature is higher than 40 ℃ or when being lower than 5 ℃, do not allow to carry out the mortar injection construction.When the same day, the lowest temperature was lower than 5 ℃, whole day mustn't be carried out mortar injection.Rainy day must not be carried out cement asphalt mortar construction, and the cement asphalt mortar of end sclerosis after the reply perfusion covers, and prevents at the bottom of the rainwater entering surface laminate.When the mortar flowability loses, take down hopper, mortar unnecessary in the injection hole is drawn out, make on the surface distance surface layer plate of mortar along about 15cm.
Maintenance: the maintenance of cement asphalt mortar is undertaken by natural curing in principle, and the same day, the lowest temperature may be below 0 ℃ the time, and the mortar of the new perfusion of reply is taked suitable Insulation, when cement asphalt mortar expand finish after, dismountable compacting device.After cement asphalt mortar compressive strength reaches 1.0MPa, dismountable accurate adjustment jack.Cement asphalt mortar compressive strength can load-bearing on the surface layer plate after reaching more than the 3.0MPa.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (6)
1. a CA mortar is implanted multi storied factory building floor layer instillation process, and it is characterized in that: construction technology process is divided into: the steps such as CA mortar processed, CA mortar injection, maintenance are processed, mixed to preparation of construction, filler strip arrangement, erecting of panel, installation hold down gag, edge sealing.
2. described CA mortar is implanted multi storied factory building floor layer instillation process according to claim 1, it is characterized in that: use sprayer that bed plate concrete pavement and surface layer plate bottom surface is moistening before the grouting, when air themperature＞20 ℃, after grouting face is moistening all grout holes and steam vent are carried out capping, keep grouting face moist.
3. described CA mortar is implanted multi storied factory building floor layer instillation process according to claim 1, it is characterized in that: want controlled grouting speed during the grouting of surface layer plate, do not want too fast also can not be excessively slow, a general plate was advisable with 3～5 minutes, control perfusion rhythm well, stir enough side's amounts, pause in the middle of forbidding during the grouting of surface layer plate, want and guarantee Continuous Perfusion, absolute prohibition secondary pouring.
4. described CA mortar is implanted multi storied factory building floor layer instillation process according to claim 1, it is characterized in that: the grout hole that the surface layer plate is set can add pvc pipe, mortar has enough height after the grouting, and its pressure differential is built fully with assurance, draws out unnecessary mortar after the mortar initial set again; Simultaneously at three steam vents of surface layer plate superelevation one side flexible pipe is set, the flexible pipe mouth of pipe exceeds at the bottom of the surface layer plate approximately 2cm, can shutoff after flexible pipe is discharged slurries; Strict controlled grouting speed is fully got rid of to guarantee gas; The edge sealing mortar must be firm, adopts in case of necessity tool bracing to reinforce; To guarantee the slurries of steam vent discharge capacity in the filling process, after steam vent is discharged normal slurries, still will continue to discharge a part of slurries, to guarantee the Bas Discharged of shutoff under the surface layer plate, the plumpness thereby assurance is in the milk.
5. described CA mortar is implanted multi storied factory building floor layer instillation process according to claim 1, it is characterized in that: before perfusion CA mortar, the place of guaranteeing to inject is without ponding and other harmful foreign material, before the CA mortar injection, measure its flowing time, check mortar temperature and air content.
6. described CA mortar is implanted multi storied factory building floor layer instillation process according to claim 1, it is characterized in that: after the panel layer accurate adjustment at four jiaos of mounting limit devices of panel layer, then carry out the CA mortar injection, with panel layer change in displacement in the dial gage controlled grouting process, guarantee the accurate of panel layer position.
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| CN201210385707XA CN102926524A (en) | 2012-10-11 | 2012-10-11 | Injecting technology for implanting CA (cement asphalt) mortar in multi-storey workshop floor layer |
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| CN201210385707XA CN102926524A (en) | 2012-10-11 | 2012-10-11 | Injecting technology for implanting CA (cement asphalt) mortar in multi-storey workshop floor layer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103306439A (en) * | 2013-06-14 | 2013-09-18 | 浙江建设职业技术学院 | Pouring technology for implanting high anti-leakage and anti-crack protective layer into roof structure layer |
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| KR0166993B1 (en) * | 1994-06-01 | 1999-02-18 | 김상배 | The method of nozzle protecting structure of floor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103306439A (en) * | 2013-06-14 | 2013-09-18 | 浙江建设职业技术学院 | Pouring technology for implanting high anti-leakage and anti-crack protective layer into roof structure layer |
| CN103306439B (en) * | 2013-06-14 | 2016-01-27 | 浙江建设职业技术学院 | Roof construction layer pouring technology implanted by a kind of high impervious cracking resistance topping |
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Application publication date: 20130213 |