CN104929365B - Refuse of refuse burning generating plant discharging platform combined type surface construction technology - Google Patents
Refuse of refuse burning generating plant discharging platform combined type surface construction technology Download PDFInfo
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Abstract
Present invention relates particularly to a kind of refuse of refuse burning generating plant discharging platform combined type surface construction technology is it is characterised in that step is as follows：1) Concrete；2) falsework and reinforcing bar are set up；3) combined type split heads makes, welds；4) double-layer double-direction reinforcing bar is set；5) check before concreting；6) concreting；7) spread corundum when pouring strengthening surface layer；8) concrete surface absolute altitude, floating receipts light are controlled；9) concrete curing.The present invention, compared with prior art construction technology, has following features：1) refined construction technology, strong innovation, science are strong and workable；2) globality construction, is not compression and the superposition of construction procedure, but changes the function of total layer, has reached the resultant effects such as resistance to compression, wear-resisting, anti-corrosion, impervious, anti-folding；3) effectively structure sheaf, surface layer are constructed simultaneously, shorten the construction period；4) safe and reliable, remarkable in economical benefits.
Description
Technical field
Present invention relates particularly to a kind of refuse of refuse burning generating plant discharging platform combined type surface construction technology.
Background technology
Refuse of refuse burning generating plant discharging platform long-time bearing loaded vehicle rolls, and is in the dirts such as percolate, humidity
In dye environment, perishable, easy to leak.The conventional processing method of refuse of refuse burning generating plant discharging platform is at present：In reinforcing bar
The thick pea gravel concreten wearing layer of one layer of 100mm is again done on concrete floor basic unit, between two-layer, does water-proofing treatment；Also have
One layer of bituminous concrete surface layer is laid on reinforced concrete floor basic unit, the discharging platform after so processing is in long-time bearing
Loaded vehicle rolls the quality problems occurring that seepage in face checking, peeling etc. repeatedly, have impact on and uses function, and maintenance difficulty is big,
Costly.
Content of the invention
Present invention aim to address prior art refuse of refuse burning generating plant discharging platform is anti-in long-time bearing loaded vehicle
Roll the defect occurring that seepage in face checking, peeling etc. again, provide a kind of refuse of refuse burning generating plant discharging platform multiple
Box-like surface construction technology, can improve the overall performance of discharging platform, increase the service life using this technique.
The present invention is achieved by the following technical solution：
I.e. a kind of refuse of refuse burning generating plant discharging platform combined type surface construction technology it is characterised in that step such as
Under：
1) Concrete
The match ratio of each raw material of concrete is：
Cement: slag powders: corundum: mechanism rubble: water: water reducer: polypropylene fiber
290∶150∶750∶996∶198∶6.16∶1.60
Concrete is made after cement, slag powders, corundum, mechanism rubble, water, water reducer and polypropylene fiber are mixed, its
Middle cement is Portland cement, code name P.O, active mixture volume ≯ 15%, strength grade 42.5R, actual measurement
47.5MPa；Slag powders are S95 level granulated blast-furnace slag；The proportion of corundum is 3.20-3.25, and microhardness is 2840-
3320Kg/mm2；The particle diameter of mechanism rubble is 5-20mm；Water reducer is polycarboxylate high performance water-reducing agent, water-reducing rate 25%；Third
Diameter 0.02～the 0.05mm of synthetic fibre fiber, length 20mm；
2) falsework and reinforcing bar are set up；
3) combined type split heads makes, welds
Using diameter 8mm plain bar, according to：Structure sheaf concrete thickness+strengthening facing concrete thickness-reinforcing bar protection
Thickness degree, is fabricated to contour " several " font stirrup, then according to the spacing between horizontal reinforcement, straight by welding between " several " word
Footpath 8mm cross-arm reinforcing bar twice, to meet upper and lower three layers, the spacing needs of the reinforcing bar without bottom；
4) double-layer double-direction reinforcing bar is set
At falsework at structure sheaf and at strengthening surface layer, double-layer double-direction reinforcing bar is set；
5) check before concreting；
6) concreting
When pouring, structure sheaf and strengthening surface layer are vibrated using placement layer by layer, layering, and that is, first casting beams concrete, then pours
Board concrete, wherein structure sheaf and strengthening facing concrete should separately be constructed, and the midfeather time should be in bottom concrete initial set
Complete before hardening, do not make to form construction joint between structure sheaf and strengthening surface layer, to improve structure sheaf and to strengthen facing concrete
Globality；
7) spread corundum when pouring strengthening surface layer；
8) concrete surface absolute altitude, floating receipts light are controlled；
9) concrete curing
Strengthening surface layer adopts hard material protection.
After the concreting of the present invention, when being entered to surface using finisher disk by workmen before concrete initial set
Warehouse smeared by row trowel.
It should be noted that whether there is laitance on surface during warehouse, if there are unnecessary laitance, should manually scrape.The effect of warehouse
It is that rigidizer material is completely combined with concrete, if having larger aggregate (stone) during warehouse and floating on the surface and should pick up
Go out.After the completion of warehouse, the grasp that concrete starts pre-hardening phases-time is most important.The trace is stayed to be above People's Bank of China is walked
2-4 is deep, and surface moisture content evaporates substantially, but still when keeping moisture state, you can spreading.
The present invention dispenses when spreading corundum or quartz sand twice, dispenses the quantity pressing Fen Cang face and boundary of works area for the first time,
First by 2/3 amount of material with being manually spread on concrete surface, when absorbed concrete moisture content and uniformly dimmed after, open
Beginning is smeared with thick stranding the with the hands of finisher disk, and this stage smears excessively it should be noted that should not rub with the hands, never can rub with the hands and smear to smooth surface, material usage 5
/ coverage rate calculate, dispense remaining 1/3 material for the second time, second material dispensing equally can absorb moisture content and become
Secretly, now carefully rubbed with the hands with finisher disk again and smeared, noticed that the construction direction that stranding is smeared should be vertical with first time.
The purpose of spreading twice is to thereby guarantee that the uniformity coefficient that the coverage rate of material and infiltration combine.
The present invention is smeared using mechanical troweling piece trowel when receiving light, and trowel is smeared operation and should crisscross be carried out, receiving light to surface.
Smeared using mechanical troweling piece (unloading lower disc) trowel when receiving light, the angle change that running speed and mechanical trowel are smeared should regard mixed
The sclerotic conditions in solidifying soil face and make adjustment.After end smeared by mechanical trowel, corner trowel can be smeared and machines by hand；Receive light operation
Stage workman should wear waterproof and mould the walking shoess that paper bag is wrapped up in.
Enter water seasoning, curing time >=14 day by the way of Moisture conservation thin film during maintenance of the present invention.
The maintenance of concrete will send special messenger to carry out, and in time, irrigation times answer root to the necessary maintenance in concreting first three sky complete
To determine according to concrete can be kept to be in moistening state.
After the concrete curing of present invention 3-4 days, carry out joint-cutting, pointing seam is processed, joint-cutting spacing 4～5m in length and breadth, with cutting
Cutting mill carries out joint-cutting, and seam is deep to be thickness of slab 1/4, the wide 5mm of seam, cutting seam using " jumping storehouse method ", treat concrete meet curing age or
After reaching normal intensity, carry out stitching the miscellaneous dirt of interior cleaning, and keep drying, tape edge viscose top, filleting epoxy ointment, filleting depth
>=15mm, filleting height is concordant with plate face.
Cutting seam, using " jumping storehouse method ", is cut together every several blocks of plates, then block-by-block cuts so that temperature, shrinkage stress are released
Put.
When filleting depth is excessive, plastic strip circle is filled in filleting bottom.
The present invention improves the overall performance of discharging platform in terms of following 3：
1) multiple trial schemes of concrete are carried out preferably, developing impervious, cracking resistance, corrosion-resistant (organic solvent), resistance to
The high performance concrete of mill；
2) optimize refuse-unloading platform construction technique, concrete floor structure sheaf and strengthening surface layer synchronous construction, poured
Cheng Hou, carries out joint-cutting, filleting to surface layer, improves discharging platform overall performance；
3) discharging platform concrete strengthening surface layer, using laying double layer bar, fills corundum, improves cracking resistance, wear-resisting
And antiseptic property.
Structure sheaf, waterproof layer and surface abrasion resistance surface layer are adjusted to an integral layer one-off construction, phase by the present invention simultaneously
Between, platform reinforcing bar adopts combined type stirrup, earth formation muscle and surface layer temperature steel to install simultaneously, then adopts high grade antiseepage to mix
Solidifying soil, the slump controls within 140mm, inside mixes polypropylene fiber, as structure sheaf pouring construction, treats that concrete vibrating glows floating
Slurry, then pour facing concrete, finally fill corundum, polishing flattens, joint-cutting encapsulating.The present invention effectively solves concrete
The performance of the not anti-folding of resistance to compression, in addition increased the wearability of concrete surface, with this meet discharging platform globality, impermeability,
Wearability, anti-corrosive properties are in the structure construction effect of one.The present invention, compared with prior art construction technology, has following features：
1) refined construction technology, strong innovation, science are strong and workable.
2) globality construction, is not compression and the superposition of construction procedure, but changes the function of total layer, reach
The resultant effects such as resistance to compression, wear-resisting, anti-corrosion, impervious, anti-folding.
3) effectively structure sheaf, surface layer are constructed simultaneously, shorten the construction period.
4) safe and reliable, remarkable in economical benefits.
Brief description
Fig. 1 is the construction process figure of the present invention.
Specific embodiment
First, the preparation before constructing
1 is familiar with construction drawing, specifies discharging platform structure and the construction method of surface layer.
2, according to drawing requirement, finish to frame column construction below discharging platform；
The complete discharging platform monoblock type surface construction scheme of 3 establishments, and through management, construction unit's examination ＆ approval；If mould bases
Support system is more than 8m, then can carry out next procedure construction after must being expounded through peer review.
4 machineries intending selecting, equipment, material are all shown up, and check qualified；
2nd, trial is carried out to structure layer concrete
1), the property indices that concrete requires
(1) comprcssive strength >=C30
(2) rupture strength >=5KPa
(3) resistance to organic (Oleic acid, aliphatic acid) corrosion
(4) seepage-resistant grade ＞ P6～8
(5) wear-resistant amount ≯ 3.6Kg/m2
(6) concrete abrasion-resistant degree ＞ 35
C35 carborundum concrete match ratio
Cement: slag powders: corundum: mechanism rubble: water: water reducer: polypropylene fiber
290∶150∶750∶996∶198∶6.16∶1.60
1∶0.52∶2.59∶3.43∶0.68∶0.021∶0.0055
Explanation
Slag powders：Ground granulated blast furnace slag (S95).
Quartz sand：Maximum particle diameter 5mm.
Corundum：Proportion is 3.20-3.25, and microhardness is 2840-3320Kg/mm2
Mechanism rubble：5～20mm.
Additive：Polycarboxylate high performance water-reducing agent, water-reducing rate 25%.
Polypropylene fiber：Diameter 0.02～0.05mm, length 20mm.
4) trial effect：In discharging platform construction, commerical ready-mixed concrete company first carries out trial according to laboratory match ratio, really
Determine its comprcssive strength of C35 high performance concrete, rupture strength, anti-permeability performance, anti-wear performance Indexs measure result fully meet
Test standard.
3rd, " structure sheaf+surface layer " combined type split heads makes
In order to will be well separated to Horizontal Force of Bridge Substructure reinforcing bar and top gluten so as to give full play to respective performance, construction
Middle employing multilamellar stirrup, limits the reinforcing bar of respective position with this, and spacing rationally, meets protective layer design thickness.
Diameter 8mm plain bar is adopted in construction, according to：Structure sheaf concrete thickness+facing concrete thickness-reinforcing bar is protected
Covering thickness, is fabricated to contour " several " font stirrup, then according to the spacing between horizontal reinforcement, will weld between " several " word
Diameter 8mm cross-arm reinforcing bar twice, to meet the spacing needs of upper and lower three layers of (without bottom) reinforcing bar.
4th, discharging platform integral slab reinforcement construction
1 discharging platform reinforcement installation
Xoncrete structure arranges double-layer double-direction bar-mat reinforcement according to the thickness of top and structural slab, strong to meet xoncrete structure
The needs of degree, and surface layer, according to concrete thickness, is typically not provided with reinforcing bar, or the face of setting single-layer bidirectional diameter 6mm-8mm
Muscle, namely what is often called " temperature steel ", it is therefore an objective to prevent concrete surface blind crack, improves the overall matter of xoncrete structure surface layer
Amount, and the percolating water phenomenon producing because of crackle.This engineering, while original structure layer double-layer double-direction reinforcing bar, sets up face
Layer reinforcing bar is also the steel-bar of double-layer double-direction diameter 10mm, plays increase intensity, increases local fracture resistance, it is to avoid concrete
The purpose cracking, integral construction, the service life of Concrete Structure.
2 reinforcement construction points for attention
1) assign special messenger be responsible for keep template in cleaning, prevent reinforcing bar to be bent, step on curved.
2) reinforcing bar joining must all colligations firmly it is ensured that steel bar stress does not offset, and be taken the necessary measures it is ensured that steel
The thickness of tendon protective layer.
The control of 3 covers to reinforcement
1) vertically and horizontally compound stirrup is installed on the base plate of bar-mat reinforcement so as to spacing 1000 laying bottom, in plum blossom-shaped
Arrangement.
2) orlop reinforcing bar adopts concrete pad to support.
5th, discharging platform monoblock type board concrete construction
1. prepare before concrete construction
1), before concrete construction, first dabbing process is carried out to post upper surface joint part, and debris are cleaned out, to template
Support and steel corrosion quantity finish.
2), during casting concrete, should first adopt and starch in post upper surface seat with label mortar；
3) first casting beams concrete, then pours board concrete, wherein structural slab dough-making powder laminate concrete should separately be constructed,
The midfeather time should complete before the hardening of bottom concrete initial set.
2 structure sheaf concrete constructions
1) this position concrete requires disposable continuous placing, the amount of pouring larger it is necessary to adopt pump concrete, if necessary
Two concrete mixers pour simultaneously, and pump tube length meets site operation needs.
2) beam forms concreting will be carried out by pouring plan, and being more than when 0.4m is less than 1m in depth of beam will first casting beams
Concrete, when pouring to floor slab bottoms on beam coagulation, beam is poured with plate simultaneously again.Will be from as far as being closely carried out continuously.In beam
Tall and big casting beams first when 1m, then pour plate；Casting beams concrete, is poured into should stay during soffit 20mm-30mm and sets coagulation
Native construction joint.
3), during casting platform board concrete, concrete virtual resurfacing thickness is greater than thickness of slab 20mm-30mm, using internal vibration
Device vibrates, and checks its thickness with the slotting chi of ferrum.If inadequate thickness, a small amount of concrete of teeming, then, clapped with big shovel surface
Plain.
4) in concreting process, to spread out in good time, must not somewhere pile up too high, prevent larger concentration
Load and lead to beam slab and support crush or be deformed.Casting concrete will send special messenger with rake the concrete rake just having unloaded
Open.
3 facing concrete constructions
Surface layer casting process order installs " S " type route iterative method, and concrete vibrating is vibrated using vibration board, shakes
Smash number of times to be no less than twice, tentatively struck off using aluminium alloy rod.
4 corundum surface constructions
1) as the 50%-60% of facing concrete initial set to presetting period, you can start same on the surface of concrete edge
One direction dispenses corundum aggregate high-abrasive material, and first time spreading amount is the 2/3 of all material consumption, wall, post, door, equipment base
Chu Deng concrete edge, because moisture hour is very fast, preferably preferentially dispenses, and to prevent dehydration and reducing effect, carries out afterwards again
Large area is shed, and uniformity answered by the spreading of corundum aggregate high-abrasive material, must not have omission.
2), after corundum aggregate high-abrasive material dispenses for the first time, the method combining using machinery and manually is entered to concrete
Row smears pressure, floating, warehouse.Pressure smeared by polishing machine should be from the beginning of the one of terrace jiao, and what edge and corundum aggregate high-abrasive material dispensed hangs down
Nogata smears pressure to mobile equipment, then smears once along spreading steering wheel again, should ensure that the uniform exhaustive of compacting, flatness in operation
3mm should be not more than, manually smear the edges such as pressure wall, post.
3) second dispense corundum aggregate high-abrasive material, its spreading amount is the 1/3 of whole corundum aggregate consumptions, in the
Carry out after 1-2 hour after once dispensing, before carrying out second spreading material, first should be dispensed for the first time with the measurement of aluminium alloy floating rule and smear
Ground flat degree after pressure, and adjust its irregular place, the spreading direction Ying Yu that second dispenses during corundum wear-resistant material
Spreading direction once is perpendicular.
6th, concrete curing and protection
After the completion of the corundum wearing layer construction of ground, for preventing moisture evaporation, complete in 4-6 hour in construction, using mill
Ray machine is ceaselessly smeared pressure to surface, after final set, in concrete surface plastic covering cloth, cotton felt, finally adopts 12mm thickness glue
Whole of plywood covering, and plywood handing-over position is connected using flitch, it is to avoid in construction in later period, equipment and personnel opposite
Layer concrete is destroyed, and avoids individual plywood sliding simultaneously, does not have the effect of protection surface layer.Watering maintenance is no less than 14
My god.
7th, segmentation joint-cutting, filling clay
After the construction of discharging platform integral concrete completes 3-5 days, concrete topping should be carried out unify to cut, before cutting
Snap the line should be unified, to ensure the neatly straight of line of cut, cutting personnel should arrange special messenger to be responsible for, and block size is 4 square, seam
Wide by 5, deep 30, pointing is polyurethane seal clay, should clean out debris in gap first, if necessary in construction
Rinsed using clear water, clay embedding should be carried out in the afternoon of fine day, be surface-treated uniformity.
8th, template and its support system are removed
1 discharging platform form removal must strict implement《Concrete structure engineering construction quality accident specification》(GB50204-
2002) the relevant clause regulation of version in 2011, is reached after regulation requires with test cube in the same condition and can remove through approval.Template is propped up
Support body system must reach after design strength 100% after concrete strength, by orderly release from top to bottom.
2 form work engineering work organizations, should follow formwork and execute operation with form removal by an operation team；The dismounting of template
Should follow first to prop up and tear open afterwards, prop up afterwards and first tear open；From top to bottom, support first tears lateral support open, after tear the principles such as vertical supporting open.
Claims (7)
1. a kind of refuse of refuse burning generating plant discharging platform combined type surface construction technology is it is characterised in that step is as follows：
1) Concrete
The match ratio of each raw material of concrete is：
Cement: slag powders: corundum: mechanism rubble: water: water reducer: polypropylene fiber
290∶150∶750∶996∶198∶6.16∶1.60
Concrete, wherein water is made after cement, slag powders, corundum, mechanism rubble, water, water reducer and polypropylene fiber are mixed
Mud is Portland cement, code name P.O, active mixture volume ≯ 15%, and strength grade 42.5R surveys 47.5MPa；Ore deposit
Ground-slag is S95 level granulated blast-furnace slag；The proportion of corundum is 3.20-3.25, and microhardness is 2840-3320Kg/mm2；Machine
The particle diameter of rubble processed is 5-20mm；Water reducer is polycarboxylate high performance water-reducing agent, water-reducing rate 25%；The diameter of polypropylene fiber
0.02～0.05mm, length 20mm；
2) falsework and reinforcing bar are set up；
3) combined type split heads makes, welds
Using diameter 8mm plain bar, according to：Structure sheaf concrete thickness+strengthening facing concrete thickness-cover to reinforcement is thick
Degree, is fabricated to contour " several " font stirrup, then according to the spacing between horizontal reinforcement, by weld diameter between " several " word
8mm cross-arm reinforcing bar twice, to meet upper and lower three layers, the spacing needs of the reinforcing bar without bottom；
4) double-layer double-direction reinforcing bar is set
At falsework at structure sheaf and at strengthening surface layer, double-layer double-direction reinforcing bar is set；
5) check before concreting；
6) concreting
When pouring, structure sheaf and strengthening surface layer are vibrated using placement layer by layer, layering, i.e. first casting beams concrete, then pour plate and mix
Solidifying soil, wherein structure sheaf and strengthening facing concrete should separately be constructed, and the midfeather time should harden in bottom concrete initial set
Before complete, do not make structure sheaf and strengthening surface layer between formed construction joint, with improve structure sheaf and strengthening facing concrete entirety
Property；
7) spread corundum when pouring strengthening surface layer；
8) concrete surface absolute altitude, floating receipts light are controlled；
9) concrete curing
Strengthening surface layer adopts hard material protection.
2. refuse of refuse burning generating plant discharging platform combined type surface construction technology according to claim 1, its feature
After being concreting, smear warehouse when trowel being carried out using finisher disk to surface by workmen before concrete initial set.
3. refuse of refuse burning generating plant discharging platform combined type surface construction technology according to claim 1, its feature
It is to dispense twice when spreading corundum or quartz sand, dispense the quantity pressing Fen Cang face and boundary of works area for the first time, first by material
2/3 amount with being manually spread on concrete surface, when absorbed concrete moisture content and uniformly dimmed after, start to use finisher
The thick stranding with the hands of disk is smeared, and this stage smears excessively it should be noted that should not rub with the hands, never can rub with the hands and smear to smooth surface, material usage 5/covering
Rate calculates, and dispenses remaining 1/3 material for the second time, and second material dispensing equally can absorb moisture content and dimmed, now uses again
Finisher disk is carefully rubbed with the hands to be smeared, and rubbing the construction direction smeared with the hands should be vertical with first time.
4. refuse of refuse burning generating plant discharging platform combined type surface construction technology according to claim 1, its feature
It is to smear using mechanical troweling piece trowel when receiving light, trowel is smeared operation and should crisscross be carried out, receiving light to surface.
5. refuse of refuse burning generating plant discharging platform combined type surface construction technology according to claim 1, its feature
It is during maintenance to enter water seasoning, curing time >=14 day by the way of Moisture conservation thin film.
6. refuse of refuse burning generating plant discharging platform combined type surface construction technology according to claim 1, its feature
After being concrete curing 3-4 days, carry out joint-cutting, pointing seam is processed, joint-cutting spacing 4～5m in length and breadth, carries out joint-cutting with cutting machine,
Seam is deep to be thickness of slab 1/4, the wide 5mm of seam, and cutting seam, using " jumping storehouse method ", treats that concrete meets curing age or reaches normal intensity
Afterwards, carry out stitching the miscellaneous dirt of interior cleaning, and keep drying, tape edge viscose top, filleting epoxy ointment, filleting depth >=15mm, filleting
Height is concordant with plate face.
7. refuse of refuse burning generating plant discharging platform combined type surface construction technology according to claim 6, its feature
It is that plastic strip circle is filled in filleting bottom.
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| CN105386275A (en) * | 2015-10-14 | 2016-03-09 | 巢湖市荣达塑业有限公司 | Production method of weight-adjustable washing machine balancing weight |
| CN107060171A (en) * | 2016-12-27 | 2017-08-18 | 上海森信建设工程有限公司 | The super flat reinforced concrete flooring of large area and colored diamond dust surface layer one-step moulding method |
| CN106836815A (en) * | 2017-03-08 | 2017-06-13 | 杭州二建建设有限公司 | Large area diamond dust floor structure plate and surface layer one-off construction method |
| CN107143111A (en) * | 2017-06-20 | 2017-09-08 | 苏州郡茂营造工程有限公司 | A kind of construction method of abrasion-proof terrace |
| CN107435939A (en) * | 2017-09-13 | 2017-12-05 | 广西铭源环保工程有限公司 | A kind of domestic garbage pyrolysis kiln gas cleaning system |
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