CN1275659A - Construction method for preventing airport surface from forming crack and crushed stone - Google Patents
Construction method for preventing airport surface from forming crack and crushed stone Download PDFInfo
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- CN1275659A CN1275659A CN 99107904 CN99107904A CN1275659A CN 1275659 A CN1275659 A CN 1275659A CN 99107904 CN99107904 CN 99107904 CN 99107904 A CN99107904 A CN 99107904A CN 1275659 A CN1275659 A CN 1275659A
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Abstract
A construction method for preventing airport pavement from producing crack and crushed stone from shedding is characterized by that it uses asphalt and aggregate, and mixes them into asphalt concrete and makes it into precast strip; and its construction method includes the following steps: repairing crack, melting and infiltrating solvent into recess to form connecting surface, closing crack and sticking rubberized tape to cover crack, filling precast strip, and compacting, and making the precast strip and connecting surface into one integral whole, filling expansion joint with gap-filling adhesive, melting, infiltrating and closing the crack, preventing production of water-penetrating gap, renovating surface layer of airport pavement, welding covered crack and expansion joint so as to effecively prevent airport pavement from producing crack and crushed stone from shedding.
Description
The present invention relates to a kind of job practices that prevents airport surface from forming crack and crushed stone.
Aerodrome scene (runway, taxiway, apron, test run level ground, the level ground of heating, service shed etc.) now, be with cement concrete or bituminous concrete making, and the flight sortie is increased, visitor, the loading of goods plane increase day by day, cause on the scene crack after the spreading vibrations, the easier rubble that comes off, and current novel opportunity of combat and visitor, goods airliner etc. also all have high thrust (blowing afloat rubble), the characteristic of big suction (suction rubble); To the potential danger of motor suction rubble, more shape is serious, and more advanced aircraft, and maintenance cost is more expensive; Produce the crack rubble that comes off so how to stop scene, most important.
Existing aerodrome scene mends a split, construction methods such as gap filler and the renewal of scene surface layer are irritated at the shrinkage joint, fail after the completion effectively to prevent behind rising-heat contracting-cold, surface layer produces secondary constuction joint, reflection crack naturally, and gap filler and slotted wall disengaging and lead the crack and do not seal, cause the easy water inlet of grating layer fine aggregate is run off, easily cause surface layer to sink and produce faulted joint; After heavy equipment (aircraft, oily car etc.) tire spreading vibrations, easily from the tape edge rubble that comes off.
The simple declaration of existing construction and defective schematic diagram:
Fig. 1 is the construction plan in existing remedial cement concrete space of a whole page crack.
Fig. 2 is the construction and the defective cross-sectional schematic in existing remedial cement concrete space of a whole page crack.
Fig. 3 is the existing construction sectional view of filling out cement concrete space of a whole page shrinkage joint gap filler of irritating.
Fig. 4 is existing schematic sectional view of irritating the constructional deficiency of filling out cement concrete space of a whole page shrinkage joint gap filler.
Fig. 5 is the existing constructional deficiency floor map of filling out cement concrete space of a whole page shrinkage joint gap filler of irritating.
Fig. 6 is construction and the defective cross-sectional schematic that existing scene (cement concrete and bituminous concrete) surface layer upgrades.
Existing construction sequence and defective following (with reference to the English alphabet in the diagram):
Consult Fig. 1,2, remedial cement concrete space of a whole page crack construction step: consult Fig. 1, A among the figure behind the saw kerf of crack, digs (beating) and removes surface layer earlier, forms 30 centimeters wide 10 centimeters dark grooves; B among the figure uses rigid material (materials such as quartz sand, cement concrete, macromolecule mortar, high-early (strength) cement) that groove is filled up flat; C among the figure, different because of coefficient of dilatation with the old edition face, behind rising-heat contracting-cold, produce the secondary constuction joint naturally; D among the figure, because of the former crack of the space of a whole page not welded closure easily produce the reflection crack.Because of construction material needs curing time, it is long to cause the closure construction district time in addition
Consult Fig. 3,4,5, the gap filler construction sequence is irritated at the shrinkage joint: consult Fig. 3, and E among the figure, seam is filled in the PE bar earlier in about two centimeters places down; F among the figure irritates and fills out gap filler, though irritate bonding with the slotted wall top layer when filling out, does not only infiltrate in the wall pore; Consult Fig. 4, G among the figure promptly breaks away from slotted wall through rising-heat contracting-cold, can't be bonding again, form water gap; H among the figure, water easily enter in the grating layer through leading the crack from the slit; I among the figure makes fine aggregate sink to running off, and influences grating layer stability, causes the space of a whole page after the heavy equipment spreading, the space of a whole page is sunk rupture; Consult Fig. 5, J among the figure, space of a whole page corner part, because of the concentrated inflow in shrinkage joint is big, easier sagging generation faulted joint.
Consult Fig. 6, scene (cement concrete or bituminous concrete) surface layer upgrades; M among the figure waters tack coat in adding to spray on the paving; K among the figure, shrinkage joint and location of cracks paste engineering and weave cotton cloth; L among the figure, the thick asphalt concrete pavement more than 10 centimeters of making; Only because of adding on the paving stickup engineering tool retractility of weaving cotton cloth, easily make to overlay surface layer and produce to slide to strip off to see and resemble, and engineering weaves cotton cloth and easily produce the bleed phenomenon, can't combine closely with working face is integral, easily move during roll extrusion and produce fold, causing on the working face crack and shrinkage joint can't effectively protect; D among the figure, behind rising-heat contracting-cold, former crack and position, shrinkage joint easily produce the reflection crack, and easily water inlet gets loose slotted wall, and the crack continues to enlarge, even make bottom produce the cavity.
As shown in the above description, there is following deficiency in the existing construction method that prevents airdrome scene generation rubble: existing aerodrome scene mends a split and surface layer upgrades construction method, construction material thickness more than 10 centimeters is built in normal shop (fillings), and the phase prolongs with making thickness reflects the crack generation time; And remedial cement concrete space of a whole page crack needs curing time after the placing, so the duration is longer, and necessary closure construction zone, causing to increase aircraft taxi length, or shuts down an airport, and influences airport running and equipment situation:
1, increase aircraft and support equipment scheduling puzzlement, reduce the aircraft takeoffs and landings sortie, influence the airport normal operation, the investment that is caused (airport software and hardware) is wasted to hard iron.
2. number when empty consumption aircraft and motor thereof use shortens useful life.
3. increase aircraft and support equipment repair cost (maintenance, cycle maintenance, fault repair manpower are with expensive annex and the consumption of periodic replacement part).
4. increase aircraft and support the equipment fuel consumption.
After purpose of the present invention is mainly to provide that a kind of aerodrome scene mends a split, gap filler is irritated at the shrinkage joint and surface layer upgrades, prevent to produce the come off job practices of rubble of crack; Suck rubble in the hope of stopping motor, avoid causing flying danger incident and personal damage; Can keep the aircraft normal operation with construction period, avoid increasing aircraft taxi length or shut down an airport, save equipment repair cost, oil plant and keep the aircraft utilization benefit, to safeguard that the aviation operation normally and fight capability.
According to above-mentioned purpose, the invention provides following technical proposals:
A kind of job practices that prevents airport surface from forming crack and crushed stone comprises: the aerodrome scene mends a split, gap filler is irritated at the shrinkage joint, surface layer upgrades and make precasting sheet etc., it is characterized in that:
(1) remedial cement concrete space of a whole page crack construction step: A1. is behind the saw kerf of both sides, crack, excludes into groove and absorbs in the cleaning slot; B1. flame makes the working face dehydration, reaches infiltration synthetic asphalts infiltration solvent in crack and trough wall surface pore, and face connects; C1. clog an amount of synthetic asphalts concrete, welded closure crack in the crack; D1. sew on the stickup adhesive waterproof tape, be coated with high temperature synthetic asphalts infiltration solvent envelope again, and flame makes itself and joint face be bonded into one, the capping crack; E1. fill up synthetic asphalts concrete precasting sheet in the groove, during surface layer Microsoft tool plasticity, ram and press with the space of a whole page flatly, be integral, as exceeding the space of a whole page, promptly to exclude finishing flat with cell wall joint face fluid-tight engagement; F1. near shrinkage joint joint sealing material is upgraded; G1. spray nearly space of a whole page look coating in surface layer;
(2) repair the asphalt concrete pavement crack: A2. excludes into groove along the crack, and absorbs in the cleaning slot; B2. flame makes the working face dehydration, and infiltration synthetic asphalts infiltration solvent goes in the crack Yu in the trough wall surface pore to set up joint face; C2. clog an amount of synthetic asphalts concrete, welded closure crack in the crack; D2. paste adhesive waterproof tape on the crack, be coated with high temperature synthetic asphalts infiltration solvent envelope again, and flame makes itself and joint face be bonded into one, the capping crack; E2. fill up synthetic concrete precasting sheet in the groove, when surface layer Microsoft tool is plastic, rams to press and put down, be integral with cell wall joint face fluid-tight engagement with the road face;
(3) the gap filler construction sequence is irritated at the shrinkage joint: A3. cleaning slotted wall is to Portland Cement Concrete Surface Course; B3. stitch drift angle and wear into fillet, and absorb in the cleaning seam; C3. flame makes dehydration in the seam, and infiltration synthetic asphalts infiltration solvent goes into to stitch the end and lead in the crack in and stitch in the end pore, and face connects; D3. stitch bottom plug and go into the synthetic asphalts ramie stripes, welded closure is led the crack; E3. the brushing of infiltration solvent is synthesized with high temperature earlier in a seam fillet position, and infiltration is gone in the pore, strengthens the cement concrete associativity; F3 irritates raising temperature synthetic asphalts gap filler and puts down with the seam top, and infiltrates in the slotted wall pore.
(4) the scene surface layer upgrade construction sequence: A4. exclude cement concrete weathered layer or bituminous concrete get loose surface layer about 5 centimeters dark; B4. cement concrete space of a whole page location of cracks uses the construction of " mending a split " construction sequence B1.C1.D1 item, the welded closure crack; C4. the construction of " shrinkage joint filling gap filler " construction sequence A3.C3.D3.F3 item is used at position, cement concrete space of a whole page shrinkage joint, and welded closure is led the crack; D4. paste two layers of adhesive waterproof tape on the shrinkage joint, every layer is all sealed with synthetic asphalts infiltration solvent and is coated with, and flame makes itself and working face be bonded into one, the capping shrinkage joint; E4. the construction of " mending a split " construction sequence B1.C1.D1 item is used, welded closure (lid) crack in the asphalt concrete pavement crack.F4. flame makes the working face dehydration, and infiltration synthetic asphalts infiltration solvent is gone in the pore comprehensively, sets up the joint face with green surface; G4. the making airdrome scene now returns original thickness with the heated bitumen concrete, and roll extrusion and joint face fluid-tight engagement are integral.
(5) manufacture synthetic asphalts concrete precasting sheet: A. the pitch of easy embrittlement of proper amount of normal-temperature and tool viscosity is modulated into synthetic asphalts infiltration solvent; B. with aggregates such as an amount of fine sand (in thick 0.05 centimeter) and stone flours, mix evenly becomes stone flour sand; C. again with an amount of high temperature synthetic asphalts infiltration solvent and stone flour sand, the heating mix becomes the synthetic asphalts concrete; D. cooperate the construction groove demand that mends a split, irritate the real sheet of making of mold pressing.
The present invention compared with prior art, its marked improvement is as follows:
The present invention adopts five kinds of construction materials (synthetic asphalts infiltration solvent, synthetic asphalts gap filler, synthetic asphalts concrete precasting sheet, synthetic asphalts concrete and synthetic asphalts ramie stripes); Utilization goes into " fusibility " solvent infiltration to set up joint face in the working face pore, after engaging other construction materials, can not break away from the characteristic that produces the secondary constuction joint through rising-heat contracting-cold, with welded closure (lid) crack and shrinkage joint, prevent to produce the reflection crack, before gap filler is irritated at the shrinkage joint, elder generation's infiltration welded closure is led the crack, and gap filler is infiltrated in the slotted wall pore, can not break away from, prevent to produce forms of construction work such as water gap, to promote the engineering quality, stop motor suction rubble thereby reach, avoid causing the danger incident that flies; Construction period can be kept the aircraft normal operation, avoids increasing aircraft taxi length or shuts down an airport, and saves equipment repair cost, oil plant and keeps the aircraft utilization benefit, with dimension aviation operation normally and the purpose of fighting capacity.
Below in conjunction with accompanying drawing used construction material of the present invention and job practices are described further.
Description of drawings
Fig. 7 is the construction plan in the remedial cement concrete space of a whole page of the present invention crack.
Fig. 8 is the construction sectional view in the remedial cement concrete space of a whole page of the present invention crack.
Fig. 9 is the construction plan that the present invention repairs the asphalt concrete pavement crack.
Figure 10 is the construction sectional view that the present invention repairs the asphalt concrete pavement crack.
Figure 11 is the construction sectional view that gap filler is irritated at shrinkage joint of the present invention.
Figure 12 is the construction sectional view that gap filler is irritated at shrinkage joint of the present invention.
Figure 13 is the construction sectional view that scene of the present invention (cement concrete and bituminous concrete) surface layer upgrades.
Figure 14 is the construction sectional view that cement concrete space of a whole page surface layer of the present invention upgrades.
Figure 15 is the construction sectional view that asphalt concrete pavement surface layer of the present invention upgrades.
Construction material:
(l) construction material method for making and characteristic;
1. synthetic asphalts infiltration solvent: with an amount of building with water proofing asphalt (can harden during normal temperature and easily embrittlement), and after the road face fuses with pitch materials such as (can flow during normal temperature and tool viscosity), tool viscosity when being modulated into high temperature, surface layer tool elasticity during normal temperature, and do not have a solvent of viscosity.Its characteristic is:
A. permeability: can infiltrate during high temperature in working face pore and the crack, deep-rooted integrator does not also break away from through rising-heat contracting-cold.
B. weldability: during high temperature and synthetic asphalts concrete And usefulness, but weld crack and repair flat hole.
C. zygosity: after infiltration is gone into working face, with patching material tool good bond.
2. synthetic asphalts joint filling solvent: the tool viscosity and the easy materials such as pitch of embrittlement during with normal temperature fuse into the tool permeability, tool flexible solvent in surface during normal temperature.
3. synthetic asphalts concrete precasting sheet: with synthetic asphalts infiltration solvent stone flour and fine sand aggregates such as (thick below 0.05 centimeter), behind the heating mix, the coordinative construction method irritates that the mould roll extrusion is real makes sheet, forms hard solid during normal temperature.
4. synthetic asphalts concrete: with materials such as an amount of synthetic asphalts infiltration solvent stone flour, sand heating mix, shape becomes to get loose during normal temperature.
5. synthetic asphalts ramie stripes: ramie stripes is put into synthetic asphalts infiltration solvent, and heating is gone in the fiber solvent infiltration.Visual demand is adjusted the thickness specification.
6. adhesive waterproof tape: 0.5 cm thick plastic band.Visual construction demand is adjusted width.
(2) construction material purposes:
1. synthetic asphalts infiltration solvent (code name 510): the infiltration weld crack and set up and the joint face of other construction materials '
2. synthetic asphalts joint filling solvent (code name 410): high temperature is irritated and is filled out the shrinkage joint.
3. synthetic asphalts concrete precasting sheet (code name 511): when mending a split, fill up the construction groove.
4. synthetic asphalts concrete (code name 512): weld crack and filling cavity.
5. synthetic asphalts ramie stripes (code name 513): be packed to the bottom, shrinkage joint, welded closure is led the crack.
6. adhesive waterproof tape (code name 514): be pasted on the crack.
2, construction sequence (with reference to the English alphabet in the diagram):
(l) remedial cement concrete space of a whole page crack (consulting Fig. 7,8)
A1, behind the saw kerf of both sides, crack, exclude into about 2 centimeters wide 0.5 centimeter dark groove, and absorb cleaning.
B1, flame make the working face dehydration, reach infiltration 510 materials in the crack, and in the trough wall surface pore, face connect.
An amount of 512 materials of filling in C1, the bottom land crack, and flame is with floating through trowel, the welded closure crack.
Paste 8 centimeters wide 514 materials (crack wide about more than 0.2 centimeter 5 centimeters wide 514 materials of tackify one deck) on D1, the crack, be coated with high temperature 510 materials envelopes again, and flame makes itself and joint face be bonded into one the capping crack, ram can not move, and prevent when pressing to produce and reflect the crack.
E1, fill up an amount of 511 materials in groove, again when surface layer flame makes its Microsoft tool plasticity, ram with planisher and to press with the space of a whole page flatly, be integral, prevent to produce the secondary constuction joint with cell wall joint face fluid-tight engagement; Exceed the space of a whole page as material for repairing, promptly exclude finishing and put down.
F1, near shrinkage joint gap filler is upgraded, avoid the thin aggregate of grating layer to continue to run off, the space of a whole page is sunk, in case the crack arrest seam continues to increase.
G1, in the nearly space of a whole page look coating of surface layer spray (being coated with), with the dimension sight.
Note:
1. the broken degree of depth of contributing of scene surface layer surpasses 0.5 centimeter, all beat remove ram the compacting bottom after, fill up 512 materials to pothole, following 0.5 centimeter to locate the compacting finishing flat in surface layer, performs surface layer according to above-mentioned construction sequence again.
2. rush repair prevents the water inlet of rubble and grating layer temporarily, and does not consider sight, then uses this program B., C. bar to perform in surface layer.
(2) repair asphalt concrete pavement crack (consulting Fig. 9,10):
A2, exclude into about 2 centimeters wide along the crack, 0.5 centimeter dark groove, and absorb cleaning.
B2, flame make the working face dehydration, and infiltration 510 materials go into to reach in the crack in the trough wall surface pore face that connects (note concentrating a place during flame, avoid the working face carbonization).
An amount of 512 materials of filling in C2, the bottom land crack, and flame is flat with the trowel socks, the welded closure crack.
Paste about 1.5 centimeters wide 514 materials on D2, the crack, and be coated with high temperature 510 materials envelope, flame makes itself and joint face be bonded into one, and the capping crack is rammed when pressing and can not be moved, and prevents to produce the reflection crack.
Fill up 511 materials in E2, the groove, when flame makes its Microsoft tool plasticity, ram with planisher and to press with the road face flatly, be integral, prevent to produce the secondary constuction joint with cell wall joint face fluid-tight engagement.As the material for repairing height face of engaging in this profession, it is flat promptly to exclude finishing.
Note:
1. the damaged degree of depth of scene surface layer surpasses 0.5 centimeter, all beat remove ram the compacting bottom after, fill up 512 materials to pothole, following 0.5 centimeter to locate the compacting finishing flat in surface layer, performs surface layer according to above-mentioned construction sequence again.
2. rush repair prevents the water inlet of rubble and grating layer temporarily, then uses this program B2, C2 bar to perform in surface layer.
(3) gap filler (consulting Figure 11,12) is irritated at the shrinkage joint;
In A3, the shrinkage joint ditch, clean slotted wall to Portland Cement Concrete Surface Course (removing former joint sealing material during renewal earlier) with motor wire brush.
B3, will stitch drift angle and wear into fillet, and absorb in the cleaning seam.
C3, flame make dehydration in the seam, and with 510 material infiltrations go into to stitch the end lead in the crack with seam end pore in, face connects.
D3, seam bottom plug are gone into 513 materials and are added an amount of 510 materials, and flame makes itself and seam end joint face be bonded into one again, and welded closure is led the crack, and anti-sealing enters the grating layer, and fine aggregate is run off, and the space of a whole page sink and ruptures near causing.
E3, seam tip circle angular position, with high temperature 510 material brushings, the flame infiltration is gone in the pore more earlier, strengthens the cement concrete associativity, prevents through the cracked generation rubble of heavy equipment spreading.
F3, filling raising temperature (about 200 ℃) 410 materials and seam Xiang Ping, infiltration is gone in the slotted wall pore; Prevent that gap filler and slotted wall break away from, form water gap, form concave surface during normal temperature.
(4) the scene surface layer upgrades (consulting Figure 13,14,15);
A4, exclude cement concrete weathered layer or bituminous concrete get loose layer about 5 centimeters dark.
Groove need not dug in B4, cement concrete space of a whole page crack, uses " mending a split " construction sequence B1, C1, the construction of D1 item; Crack welded closure (lid) surface layer that prevents to complete is produced the reflection crack.
C4, cement concrete space of a whole page shrinkage joint (as excluding, then heavily sawing the shrinkage joint) are used " shrinkage joint filling gap filler " construction sequence A3, C3, D3, the construction of F3 item, will lead the crack welded closure; Keep cement concrete space of a whole page shrinkage joint function, but anti-sealing enters the grating layer, fine aggregate is run off, cause the surface layer situation of sinking.
Paste 5 centimeters wide and 8 centimeters wide 514 materials on D4, the shrinkage joint, every layer is coated with high temperature 510 materials envelope, and flame makes its and working face be bonded into one, and the capping shrinkage joint can not moved when guaranteeing the making surface layer, prevents from that surface layer from producing to reflect the crack.
Groove need not dug in E4, asphalt concrete pavement crack, uses the construction of " mending a split " construction sequence B.C.D item, with crack welded closure (lid), prevents that surface layer from producing the reflection crack.
Before F4, the making asphalt concrete pavement, flame makes the working face dehydration, and infiltration 510 materials are set up the joint face with green surface in pore comprehensively.
G4, use urban road laying machine are now used the heated bitumen concrete by existing construction method with airdrome scene, press the original thickness benefit and put down, and use the road roller roll extrusion real again, are integral with the joint face fluid-tight engagement, prevent to peel off.
4. the thing top is noted in construction:
(1) constructor it should be noted that and do not leave over any foreign material in the construction site (beverage can, gloves, button, rag, paper, spiral shell are defended, pad etc.).
(2) during emergency maintenance, the pack of the rubble of facility, material, dismounting places on the vehicle, should motor-driven clearing out a gathering place, avoid influencing the airport normal operation '
4. construction method characteristics and effect:
(1) prevent to mend a split position and former scene joint, produce the secondary constuction joint rubble that comes off: because of with synthetic asphalts infiltration solvent, infiltration goes into to construct in the wall groove pore, can also not break away from through rising-heat contracting-cold, as the middle joint face of filling up groove material (synthetic asphalts concrete precasting sheet); Because of material for repairing and joint face are both the pitch material, promptly molten bonding through flame heating, again after rammer flattens, but more fluid-tight engagement is integral, material for repairing separates with trough wall surface when preventing rising-heat contracting-cold, produces secondary constuction joint (test specimen places 48 hours no segregation phenomenons of the about 5 ℃ of refrigeration of refrigerator); Improve existing construction method, material for repairing and former scene joint because of coefficient of expansion difference, behind rising-heat contracting-cold, produce the problem of secondary constuction joint naturally.
(2) prevent that finished surface from producing the reflection crack, rubble comes off: because of infiltration in the crack is gone into the joint face that synthetic asphalts infiltration solvent is set up, with welding aggregate synthetic asphalts concrete, being both the pitch material, is the welding integrator through the flame heating, the welded closure crack; On the crack, paste adhesive waterproof tape again, be coated with high temperature synthetic asphalts infiltration solvent envelope, the flame heating makes itself and working face be bonded into one, adding good general's Crack Sealing lid intercepts (when having a fling at synthetic asphalts concrete precasting sheet surface layer, the local reflection crack that produces, find to produce the reflection location of cracks after removing, crack welded closure is appropriate), prevent to produce and reflect that crack and water enter the grating layer; Improve existing construction method, not first welded closure working face crack, behind rising-heat contracting-cold, finished surface produces the problem that reflects that crack and water enter the grating layer naturally.
(3) prevent the shrinkage joint water inlet, cause column to sink, produce the faulted joint rubble that comes off: because of leading in the crack first infiltration synthetic asphalts infiltration solvent in the seam end, clog the synthetic asphalts ramie stripes again, welded closure is led the crack, and irritates raising temperature (about 200 ℃) synthetic asphalts joint filling solvent in the seam, and it is infiltrated in the slotted wall pore, with the slotted wall close adhesion, through rising-heat contracting-cold, also do not break away from generation slit (test specimen places the about 5 ℃ of refrigerations of refrigerator 48 hours, no break-off); So can stop water enters the grating layer, prevent that fine aggregate runs off, avoid the space of a whole page after weight, to sink and the generation faulted joint; Improve existing construction method, not first confined bed crack, and gap filler is after rising-heat contracting-cold and slotted wall break away from can't be bonding again, naturally the problem of formation water gap.This construction method also can be common to cement concrete roadway face.
When (4) mending a split, can plan and keep the airport normal operation: because of the construction principle that prevents to reflect that the crack produces, be with crack welded closure (lid) on the working face, so during construction only shaver except that surface layer about 0.5 centimeter dark; And constructed and must not have curing time, can recover to use, closure construction is of short duration zone time; Construct during also can planning the night or the grounding in addition; During emergency, also can cooperate and promptly remove constructor and equipment; Keep the airport normal operation so can plan construction period.Improve existing construction method, must beat during construction remove scene about 10 centimeters dark, prolong reflection crack generation time with thickness, and irritate the construction material filled out need maintenance, it is long zone time to cause closure construction, influences the airport normal operation.This construction method also can apply to overhaul cement concrete and bituminous concrete roadway face, the problem of road face projection after improving traffic congestion and constructing.
(5) the scene surface layer upgrades, and can plan during construction and keep the airport normal operation; Because of the principle that prevents to reflect that the crack produces, be with working face crack, shrinkage joint sealing (lid), so only need exclude when constructing cement concrete weathered layer or bituminous concrete get loose layer about 5 centimeters dark, making returns thickness again; During because of section construction, new and old road face joint, the face that can first infiltration synthetic asphalts infiltration solvent connects prevent to produce the secondary constuction joint rubble that comes off, and it is smooth to keep face; So construct during can advising the agent grounding, avoid influencing the airport normal operation.Improve existing construction method, need making thickness more than 10 centimeters, can't section construction, causing needs long-term closure construction zone, influences the airport normal operation.This construction method also can apply to cement concrete and bituminous concrete roadway face.
(6) prevent that aircraft engine from sucking rubble, cause damage or fly the danger incident: during local overhauling, surface layer is all laid fine aggregate (in thick 0.05 centimeter), the synthetic asphalts concrete precasting sheet of modulation, and year for a long time the surface layer aggregate that comes off does not also endanger motor; As the year surface layer of a specified duration aggregate that comes off, the depression position only must an amount of synthetic asphalts infiltration of infiltration solvent during maintenance, doses an amount of synthetic asphalts concrete precasting sheet and rams to flatten and get final product; Improve existing construction method, the rubble that the road emaciated face falls easily causes the problem of damage to motor.
Claims (1)
1, a kind of job practices that prevents airport surface from forming crack and crushed stone comprises: the aerodrome scene mends a split, gap filler is irritated at the shrinkage joint, surface layer upgrades and make precasting sheet etc., it is characterized in that:
(1) remedial cement concrete space of a whole page crack construction step: A1, behind the saw kerf of both sides, crack, exclude into groove and absorb in the cleaning slot; B1, flame make the working face dehydration, reach infiltration synthetic asphalts infiltration solvent in crack and trough wall surface pore, and face connects; An amount of synthetic asphalts concrete of filling in C1, the crack, the welded closure crack; D1, sew on the stickup adhesive waterproof tape, be coated with high temperature synthetic asphalts infiltration solvent envelope again, and flame makes itself and joint face be bonded into one, the capping crack; Fill up synthetic asphalts concrete precasting sheet in E1, the groove, during surface layer Microsoft tool plasticity, ram and press with the space of a whole page flatly, be integral, as exceeding the space of a whole page, promptly to exclude finishing flat with cell wall joint face fluid-tight engagement; F1, near shrinkage joint joint sealing material is upgraded; G1, the nearly space of a whole page look coating of spraying are in surface layer;
(2) repair asphalt concrete pavement crack: A2, exclude into groove along the crack, and absorb in the cleaning slot; B2, flame make the working face dehydration, and infiltration synthetic asphalts infiltration solvent goes in the crack Yu in the trough wall surface pore to set up joint face; An amount of synthetic asphalts concrete of filling in C2, the crack, the welded closure crack; Paste adhesive waterproof tape on D2, the crack, be coated with high temperature synthetic asphalts infiltration solvent envelope again, and flame makes itself and joint face be bonded into one, the capping crack; Fill up synthetic concrete precasting sheet in E2, the groove, when surface layer Microsoft tool is plastic, rams to press and put down, be integral with cell wall joint face fluid-tight engagement with the road face;
(3) gap filler construction sequence: A3, cleaning slotted wall are irritated to Portland Cement Concrete Surface Course in the shrinkage joint; B3, seam drift angle are worn into fillet, and absorb in the cleaning seam; C3, flame make dehydration in the seam, and infiltration synthetic asphalts infiltration solvent goes into to stitch the end and lead in the crack in and stitch in the end pore, and face connects; D3, seam bottom plug are gone into the synthetic asphalts ramie stripes, and welded closure is led the crack; E3, seam tip circle angular position, with the synthetic infiltration solvent brushing of high temperature, infiltration is gone in the pore, strengthens the cement concrete associativity earlier; F3, filling raising temperature synthetic asphalts gap filler are put down with the seam top, reach and infiltrate in the slotted wall pore;
(4) the scene surface layer upgrade construction sequence: A4, exclude cement concrete weathered layer or bituminous concrete get loose surface layer about 5 centimeters dark; B4, cement concrete space of a whole page location of cracks use the construction of " mending a split " construction sequence B1.C1.D1 item, the welded closure crack; C4. the construction of " shrinkage joint filling gap filler " construction sequence A3.C3.D3.F3 item is used at position, cement concrete space of a whole page shrinkage joint, and welded closure is led the crack; D4. paste two layers of adhesive waterproof tape on the shrinkage joint, every layer is all sealed with synthetic asphalts infiltration solvent and is coated with, and flame makes itself and working face be bonded into one, the capping shrinkage joint; E4. the construction of " mending a split " construction sequence B1.C1.D1 item is used, welded closure (lid) crack in the asphalt concrete pavement crack; F4. flame makes the working face dehydration, and infiltration synthetic asphalts infiltration solvent is gone in the pore comprehensively, sets up the joint face with green surface; G4. the making airdrome scene now returns original thickness with the heated bitumen concrete, and roll extrusion and joint face fluid-tight engagement are integral;
(5) manufacture synthetic asphalts concrete precasting sheet: A. the pitch of easy embrittlement of proper amount of normal-temperature and tool viscosity is modulated into synthetic asphalts infiltration solvent; B. with an amount of particle diameter less than aggregates such as 0.05 centimeter fine sand and stone flours, mix evenly becomes stone flour sand; C. again with an amount of high temperature synthetic asphalts infiltration solvent and stone flour sand, the heating mix becomes the synthetic asphalts concrete; D. cooperate the construction groove demand that mends a split, irritate the real sheet of making of mold pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99107904 CN1115445C (en) | 1999-06-01 | 1999-06-01 | Construction method for preventing airport surface from forming crack and crushed stone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99107904 CN1115445C (en) | 1999-06-01 | 1999-06-01 | Construction method for preventing airport surface from forming crack and crushed stone |
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| Publication Number | Publication Date |
|---|---|
| CN1275659A true CN1275659A (en) | 2000-12-06 |
| CN1115445C CN1115445C (en) | 2003-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99107904 Expired - Fee Related CN1115445C (en) | 1999-06-01 | 1999-06-01 | Construction method for preventing airport surface from forming crack and crushed stone |
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| Country | Link |
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| CN (1) | CN1115445C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1629405B (en) * | 2004-10-22 | 2010-11-10 | 深圳市魁道道路用材技术开发有限公司 | Method for repairing crack on asphalt road pavement |
| CN102061658A (en) * | 2010-12-03 | 2011-05-18 | 上海市城市建设设计研究院 | Pavement repairing method for preventing pavement structure joints from generating reflection cracks |
| CN103758008A (en) * | 2013-12-24 | 2014-04-30 | 英达公路再生科技（集团）有限公司 | Method for repairing bituminous pavement cracks with molding asphalt rubber |
| CN105274931A (en) * | 2015-11-10 | 2016-01-27 | 中交一航局第四工程有限公司 | Process for rolling and compacting concrete pavement base in non-suspend air construction of airport restricted area |
| CN105625170A (en) * | 2016-03-07 | 2016-06-01 | 上海市政工程设计研究总院（集团）有限公司 | Method for dynamic weighing at bridge expansion joint |
| CN105648871A (en) * | 2016-01-17 | 2016-06-08 | 重庆交通大学 | Normal-temperature construction road surface crack isolating stickup type waterproof treatment structure |
| CN110847122A (en) * | 2019-10-09 | 2020-02-28 | 中电建十一局工程有限公司 | Water stopping method for concrete structure deformation joint |
| CN111119041A (en) * | 2019-12-30 | 2020-05-08 | 安徽鑫盛市政工程有限公司 | Drainage system for highway bridge |
-
1999
- 1999-06-01 CN CN 99107904 patent/CN1115445C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1629405B (en) * | 2004-10-22 | 2010-11-10 | 深圳市魁道道路用材技术开发有限公司 | Method for repairing crack on asphalt road pavement |
| CN102061658A (en) * | 2010-12-03 | 2011-05-18 | 上海市城市建设设计研究院 | Pavement repairing method for preventing pavement structure joints from generating reflection cracks |
| CN103758008A (en) * | 2013-12-24 | 2014-04-30 | 英达公路再生科技（集团）有限公司 | Method for repairing bituminous pavement cracks with molding asphalt rubber |
| CN103758008B (en) * | 2013-12-24 | 2016-07-06 | 英达公路再生科技（集团）有限公司 | Asphalt pavement crack molding asphalt rubber is squeegeeed method |
| CN105274931A (en) * | 2015-11-10 | 2016-01-27 | 中交一航局第四工程有限公司 | Process for rolling and compacting concrete pavement base in non-suspend air construction of airport restricted area |
| CN105274931B (en) * | 2015-11-10 | 2018-09-25 | 中交一航局第四工程有限公司 | The technique of grinding coagulation soil surface base in airport restricted area non-suspend air construction |
| CN105648871A (en) * | 2016-01-17 | 2016-06-08 | 重庆交通大学 | Normal-temperature construction road surface crack isolating stickup type waterproof treatment structure |
| CN105625170A (en) * | 2016-03-07 | 2016-06-01 | 上海市政工程设计研究总院（集团）有限公司 | Method for dynamic weighing at bridge expansion joint |
| CN110847122A (en) * | 2019-10-09 | 2020-02-28 | 中电建十一局工程有限公司 | Water stopping method for concrete structure deformation joint |
| CN110847122B (en) * | 2019-10-09 | 2021-07-09 | 中电建十一局工程有限公司 | Water stopping method for concrete structure deformation joint |
| CN111119041A (en) * | 2019-12-30 | 2020-05-08 | 安徽鑫盛市政工程有限公司 | Drainage system for highway bridge |
| CN111119041B (en) * | 2019-12-30 | 2021-10-15 | 安徽鑫盛市政工程有限公司 | Drainage system for highway bridge |
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|---|---|
| CN1115445C (en) | 2003-07-23 |
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