CN100398610C - Waterproof sealing compound for asphalt road surface, production and applied constructing process - Google Patents
Waterproof sealing compound for asphalt road surface, production and applied constructing process Download PDFInfo
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- CN100398610C CN100398610C CNB2004100514957A CN200410051495A CN100398610C CN 100398610 C CN100398610 C CN 100398610C CN B2004100514957 A CNB2004100514957 A CN B2004100514957A CN 200410051495 A CN200410051495 A CN 200410051495A CN 100398610 C CN100398610 C CN 100398610C
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Abstract
The present invention relates to a protection technique of highway engineering asphalt pavements, which provides a water-proof curing agent for asphalt pavements. The water-proof curing agent for asphalt pavements comprises the material compositions of the following proportion by weight: 100 parts of asphalt, 2 to 25 parts of rubber powder, 3 to 10 parts of resin, 2 to 16 parts of rubber, 2 to 10 parts of crosslinking agent, 1 to 6 parts of coupling agent, 1 to 20 parts of emulsifying agent (composite), proper antiaging agent, 30 to 300 parts of activator, proper foamer and proper defoamer. The manufacture of the water-proof curing agent for asphalt pavements comprises four steps of raw material preprocessing, composite modification, emulsification, auxiliary material adjunction and dissolving to refine. The construction technology of the water-proof curing agent on the asphalt pavements comprises three basic steps of sprinkling by a spreading vehicle or smearing by labors, kneading by a foam generator and curing. The present invention can effectively prevent the early water damage of asphalt concrete, intensify the strength of the asphalt on a surface layer, and avoid diesel oil fouling; the present invention can effectively seal off small cracks, and consolidate caducous asphalt granules; the present invention can fully fill large and dense crazing and check cracks, prevent water invasion, and avoid the accelerating damage of the asphalt concrete; the present invention has good adhesive properties and water-proof effect.
Description
Technical field
The present invention relates to the guard technology of highway engineering bituminous pavement. its emphasis is the preventive maintenance and the Disease Processing of bituminous pavement.
Background technology
Bituminous pavement is because train operation performance is good, mechanization of building operation degree height, speed is fast, develop very rapid, but also be subjected to the puzzlement of some technical barriers always and have influence on its popularization, these technical barriers mainly are exactly the early stage infringement (do not reach design period and occur big area disease) of bituminous pavement, comprise the early water infringement, rut, the stained early disease that causes with the pitch and the poor adhesion that gathers materials of diesel oil. the rut problem also is one of subject matter of bituminous pavement early disease, grating with asphalt concrete, foundation base intension or material factor are relevant, after complete on the road surface, it is true that the rut problem has become, can't change. an emphasis summary damage by water evil therefore, stained and the sticking clothes property of the pitch problem of diesel oil.
One, early water infringement refers to pitch shop body because long-term immersion is impaired, does not reach design period and the various diseases that occur in advance:
Though considered structure draining and Lu Biao drainage problem in the Pavement Design, but because the existence of voidage, add that the construction middle rank sets meter, the compound preparation, transportation, pave and the rolling operation process in the problem that exists, can cause local or large-area, at random or clocklike permeable phenomenon, especially at cold and hot joint and horizontal wall inscription two ends, the serious permeable phenomenon of ubiquity, and in a single day water immerse pitch shop body, emptying is difficulty very, experiment shows, voidage is at 4.3～6.2 road surface (horizontal wall inscription 2%, longitudinal gradient 1 ‰) raining two days later continuously, emptying time needs 7～10 days, this just means that pitch shop body will be in the immersion process of water and aqueous vapor for a long time in rainy season. under the vehicle travelling load acts on repeatedly, asphalt membrane begins to peel off with gathering materials, gradually, the beginning of gathering materials is loose falls grain, form the hole groove at last. and, check discovery through the road surface excavation, surface layer begins under the pitch often for damage by water evil. because moisture enters bituminous pavement, be trapped in above the basic unit, the time that is full of moisture in the asphalt concrete lower space is than long many of upper layer time, the feedwater infringement provides condition, after long repeated stress effect, when top layer pitch is not loose yet, following surface layer gathers materials and separates fully with pitch, pitch is pitch, and gathering materials is to gather materials, and is in complete loose condition (of surface), it is as a whole that asphalt no longer becomes, and the water content increase, surface layer is passed easily, at this moment gathers materials also can produce extruding to substrate surface under loading action, the saturating layer on basic unit top, seal also can be influenced and produce and damage, the soil property part of basic unit just becomes mud and sees through oil mat to be extruded, and forms the purt slurry, can be extended to the hole groove rapidly in the rainy day.
Often reduce seepage velocity in the engineering with the way that reduces the asphalt concrete voidage, but its effect is very limited, for the intensive asphalt concrete of joining, voidage is during less than ultimate value (2%～4%), pitch does not have suitable space when expanded by heating holds and will be easy to generate bellding, and cause compound to be passed and rutting deformation. the result of study according to U.S.'s SHRP shows, the most reasonable voidage of bituminous pavement is 4%, that is to say, as long as use bituminous concrete, the existence of voidage will be arranged, as long as and have voidage will cause the infiltration of water, voidage is little, the permeating speed of water more slowly, but intestine evacuation velocity is slower, the more important thing is the risk that occurs bellding.
There are indivedual enterprises attempting handling bituminous aging regeneration problem in the recent period with a kind of ointment, this method wishes to act on shop body aged pitch by the lightweight oil content in the coating, realize asphalt-regenerating function to a certain degree, but the problem of this material maximum the has been floating construction depth of asphalt surface, greatly reducing cling property, in some important engineering tests, caused the mat formation havoc of layer of the raising of car accident rate and steel bridge deck asphalt. the material of this type does not possess the most basic condition of using on highway.
Avoiding water to enter pitch shop body fully is the key that addresses this problem. therefore; if can develop a kind of liquid coating; as surface, last seal (very thin) coating pitch shop; infiltration microvoid that can blocking surface; and at surface formation complete preservation film; the immersion approach that cuts off water; and the softening temperature of this material must be greater than 75 ℃; do not have side effects; promptly shine softening, surperficial cling property of not obvious influence and internal voids rate under sunlight, this can fundamentally solve the problem of damage by water evil.
Up to the present, both at home and abroad academia and engineering circle do not have relevantly at highway asphalt road surfaces integral spray waterproof curing agent yet, are used to prevent the bituminous pavement early water to damage and improve the top layer use properties, prolong the report of service life of road surface.
Two, the stained problem of diesel oil is more and more serious, has caused owner and expert's extensive concern:
Particularly inter-provincial road and through-traffic highway, big city, diesel vehicle is many especially, and the vehicle condition quality is uneven, is easy to cause contaminated by diesel oil; Traffic lights crossing, city and parking place also generally are subjected to the pollution of diesel oil. and highway condition investigation and experimental study achievement prove: asphalt concrete is very sensitive to diesel oil, and groove was cheated in very fast of meeting after the road surface was subjected to contaminated by diesel oil; Testing laboratory does the oil resistant test of pitch marshal piece with diesel oil, and (under the normal temperature, test specimen places 0
#Soak in the diesel oil to dry after 12 hours and weigh), its weight loss is 2.8%, and surperficial asphalt membrane dissolves fully, can not see the pitch vestige, and the surface presents loose condition (of surface).
Three, the disease that easily causes of asphalt adhesion difference:
The damage by water that only solves the shop body is harmful not enough. and asphalt adhesive performance (to the cohesive force of gathering materials) difference also is to cause pitch to mix the early stage one of the main reasons of damaging of concrete, because aggregate particle bonds together by pitch fully, and the adhesion property of plain asphalt is limited, when using at normal temperatures, influenced by ambient conditions, the easy hardening embrittlement of pitch, present the hard brittle material characteristic, thereby under the wheel shearing action, easily cause and peel off, the plain asphalt concrete road surface promptly begins to peel off whiting less than 1 year asphalt membrane, and the part is born travelling load and begun to occur pitted skin than large part, fall a phenomenon.
The common practice that improves asphalt adhesion is admixture antistripping agent in pitch (containing cement, breeze etc.) or pitch is carried out modification. the former effect in the engineering practical application is not obvious especially; Though the latter has improved adhesivity and ageing resistance, permeable few, the infiltration phenomenon exists equally. facts have proved that the modifying asphalt concrete exists early water infringement phenomenon too, and cost is very high, popularization acquires a certain degree of difficulty.
In highway maintenance, handle because the local early fatigue disease in the road surface that poor adhesion caused (comprise be full of cracks, check crack, loose, fall grain etc.) method generally handle with the way of emulsified bitumen filling sealing, but this method has been handled fissured serious seepage problem temporarily, but because the emulsified bitumen softening temperature is low, easily cause bellding, reduced the use properties on road surface. only should be as the interim WATER REPELLENT that local small area is existed the road surface of serious plant disease.
The slurry seal cover is a kind of pavement maintenance technology that develops rapidly in recent years, it gathers materials with particulate formula graded broken stone or husky the work on bituminous pavement, with emulsified bitumen (or modified emulsifying asphalt) is binding agent, filled mixing with water-cooled then paves into pitch table place thin layer with asphalt slurry seal machine, thickness 3～10mm, be used for the confining surface space, the crack, improve cling property and recover to improve road surfaces driving function. but because technology is still not overripened, weather resistance is not good enough, the executive cost height, difficulty is big, to having applied certain influence, and still fail effectively to solve the damage by water evil problem that self infiltration is caused.
Summary of the invention:
First purpose of the present invention is the prescription and the production technique of a kind of bituminous pavement waterproof curing agent of development, this curing agent is sprayed on asphalt highway or other region of interest, can prevent the early water infringement of asphalt concrete, anti-diesel oil is stained, and strengthen the pavement performance on asphalt concrete top layer, thereby prolong service life of road surface.
Second purpose of the present invention is to propose a kind of above-mentioned bituminous pavement waterproof curing agent to be sprayed on construction technology technology on the asphalt pavement of highway, and the pavement performance of this product is not fully exerted.
The 3rd purpose of the present invention is flexible paint thickness detection apparatus and the detection method that proposes above-mentioned bituminous pavement waterproof curing agent is sprayed on asphalt pavement of highway.
First purpose of the present invention can realize by following approach:
A kind of bituminous pavement waterproof curing agent is characterized in that being made up of the material of following weight part ratio example:
Pitch 100
Rubber powder 2～25
Resin 3～10
Rubber 2～16
Linking agent 2～10
Coupling agent 1～6
Compound emulsifying agent 1～20
Antiaging agent is an amount of
Activator 30～300
Pore forming material is an amount of
Defoamer is an amount of
Described rubber powder is that old tire becomes ultra-fine powder state after processing;
Described resin is the HMA polymkeric substance;
Described rubber is SBS;
Described emulsifying agent comprises that Compound Machining such as cationic emulsifier, poly-amido silicon oil and the inorganic fine aggregate of small amounts of inorganic form.
Described antiaging agent be uvioresistant anti-aging agent and mica powder etc. material is composite forms, its effect is to increase the uvioresistant of emulsion and fatigue property, prolongs material work-ing life;
Described activator is a water;
Described defoamer is an organic silicone oil;
Described pore forming material is the organic acid soap, the on-the-spot adding before the construction.
The production technique of above-mentioned bituminous pavement waterproof curing agent need be passed through following pre-treatment of raw material, composite modified, emulsification, molten refining four procedures of interpolation subsidiary material:
1. pre-treatment of raw material: mean the bituminous dehydration of heating, the bubble of rubber powder rises, moulds to be practiced and thin-pass, with emulsifying agent preparation becoming composite emulsion;
2. composite modified operation: behind the pitch and rubber powder preparation, rubber, linking agent, coupling agent and mixed with resin stirring heating with preheating, under 175～220 ℃ of high temperature and 0.01～0.05MPa vacuum through high speed shear repeatedly with grind the ultra-fine mixture-polymer composite gel that forms particle diameter＜2 μ m;
3. emulsification process: by emulsifying device, with operation polymer composite gel 2. and the composite emulsion for preparing, defoamer under 80～90 ℃ of temperature and 0.7～1Mpa pressure through further emulsification processing, form emulsion;
4. add the subsidiary material operation: in operation emulsion 3., add and comprise ageing-resistant subsidiary material, the further molten refining of processing under vacuum, then cooling waterproof curing agent base-material finished product.
Above-mentioned four procedures all will carry out in reactor, and will carry out continuously stirring to material in the container;
Composite emulsion in the three process will dissolve stirring heating in advance, and then polymer composite gel and emulsion is sent in proportion carry out emulsification in the emulsification pump.
The technical characterstic of this technological process is:
1. multiple organic composite macromolecular material (particularly rubber powder) can be cut into very thin colloidal solid (＜2 μ m) with the pitch thorough mixing and by dispersion uniformly, and can stable being present in the colloid not emanate for a long time;
2. above-mentioned colloid 1. can be divided into fine particle, and be become stable emulsion (can deposit more than 2 years), be convenient to construction, storage and transportation by the emulsification of water institute;
3. composite modified must under high temperature and vacuum state, carrying out (175～220 ℃, 0.01～0.05MPa);
4. the emulsion process reactor must apply certain air pressure (0.7～1MPa)
5. modification and emulsification are placed same technical process, realize the optimum collocation of Processes and apparatus, reduce investment to greatest extent, reduce production costs;
6. physical change mainly takes place in the course of processing, and its solvent is a water, and the equal non-environmental-pollution of preparation process is typical environmentfriendly products.
The bituminous pavement waterproof curing agent of preparing out through above-mentioned technology, for being slightly acidic liquid, can use separately, also can use with other material-mix as required, construction process makes it become foam by pore forming material and frothing machine, becomes solid colloid after construction is finished.
Second purpose of the present invention can realize by following approach:
A kind of above-mentioned bituminous pavement waterproof curing agent is sprayed on construction technology on the asphalt pavement of highway, it is characterized in that including that truck spreader sprays or manually smears, frothing machine rubbing and three basic steps of maintenance:
Truck spreader sprays, be with aforesaid bituminous pavement waterproof curing agent directly or with the special-purpose truck spreader of packing into after other formula materials mixes in, by truck spreader bituminous concrete pavement is evenly sprayed then, coat-thickness is strict controlled in 0.1～0.3mm.
Frothing machine rolls and crumples,Be to spray in back 15 minutes at truck spreader, with special frothing machine to the rubbing of rolling of this road surface.
At this moment spreading can become foam automatically in the protective material on road surface, the road surfaces microtexture is all dashed by foam and is filled out, the rubbing of rolling is finished in 20 minutes afterwards, lather collapse, darken, road surfaces microcosmos geometric shape and dimensional change are little, remain under a small amount of curing agent and ooze, the road table restores to the original state, thereby construction depth is unaffected substantially;
Maintenance,Be to leave standstill the maintenance use that just can be open to traffic after 12 hours on this road surface of rubbing relief of rolling, reach specified intensity after one month substantially.
Except above-mentioned three basic steps, before spraying, truck spreader can increase by two steps of pavement behavior parameter detecting and road surface dust foreign material cleaning selectively.
The detection of described pavement behavior parameter comprises:
The construction information (grating form, structure formation, voidage, construction depth and bituminous particular case) of bituminous pavement before understanding, detect pavement structural depth, the present situation of infiltration coefficient and the investigation and the analysis of pavement disease, for next step the formulation of construction parameter provides foundation.
Further scheme is: spraying process divides two-layer construction, is promptly spraying for the first time and the rubbing of rolling promptly carries out that spray second time and rolling is crumpled after finishing in about 24 hours.
The first layer concentration can be slightly rarer, mainly is the permeable microvoid of sealing, softening exposed protobitumen, and be easier to and the bonding of gathering materials; Second layer concentration is big, guarantee vertical projection according to less than microvoid obtain filling, the thickness that gather materials top and side cover should have 0.1～0.3mm.
The 3rd purpose of the present invention can realize by following approach:
A kind of above-mentioned bituminous pavement waterproof curing agent is applied in the coat thickness detection method of asphalt highway,
Described Coat-thickness is meantAfter coating parches, the thickness of siccative on the vertical projection unit surface _ _ _ _ _ we are referred to as the nominal thickness of coating, it is characterized in that:
Use a receiver, the receiver area is 0.1m
2, during construction this disk being placed needs somewhere, the road surface of spray paint, after the been sprayed, takes by weighing the weight difference G of disk before and after connecting material at every turn
1(g) the weight difference G of disk and before and after the oven dry
2(g), pass through dried bulk density and the pavement structure coefficient conversion spraying consumption and the spraying nominal thickness of this kind material of mensuration in advance again, available following formula calculating:
Construction consumption (containing volatile components such as solidifying agent, activator) is represented with G:
G＝10G
1(g/m
2)
The coating nominal thickness is represented with B:
B＝G
2/ρ
＝10
-3G
2/1.07(mm)
Wherein: ρ is by being surveyed material proportion
Coating actual (real) thickness δ=kB
In the formula: k is a structure coefficient, and is relevant with the road surfaces construction depth, determines according to test.
The present invention is further illustrated with specific embodiment below:
Description of drawings
Fig. 1 is the production process synoptic diagram of the bituminous pavement waterproof curing agent among the present invention;
Fig. 2 for the present invention be applied in the coating thickness measurement instrument on road surface _ _ disk receiver sectional view;
Fig. 3 for the present invention be applied in the coating thickness measurement instrument on road surface _ _ disk receiver vertical view.
Embodiment
The production instance of embodiment one, bituminous pavement waterproof curing agent:
1. proportioning raw materials (weight ratio):
Pitch 100
Rubber powder 12
Linking agent 8
Coupling agent 1.5
Emulsifying agent (compound) 45
Antiaging agent 8
Water 142 (add at twice, stay 20 addings when construction)
The defoamer trace
The technological process of production as shown in Figure 1, concrete controlling index no longer repeats as previously mentioned.
2. product performance are as follows:
Sticking power:＞1.2Mpa;
Water resistance: following 3 minutes of normal pressure is waterproof;
Depth of penetration: 10～20mm;
Surface drying time: 2 hours.
3. application characteristic:
1. construction process is identical with the front, adds 0.2% pore forming material and 20% activator during construction and stirs.
2. this kind material divides and evenly is sprayed on for twice on the bituminous pavement, can effectively prevent the early water infringement of asphalt concrete, strengthens the intensity of top layer asphalt concrete, avoids diesel oil stained;
Embodiment two, the bituminous pavement waterproof curing agent of embodiment one is used to administer the application example of bituminous pavement early disease:
1. proportioning raw materials (weight ratio):
Bituminous pavement protective agent base-material 100 (prescription and complete processing are identical with example one)
Pore forming material 0.5
Water 8～15
Cement 4
Construction technology:
Earlier pore forming material, cement and water are poured in the protective agent base-material and stirred, can spray, be spread across behind the road surface in 15 minutes, push away with frothing machine and rub, curing agent becomes foam at once, after 15 minutes, lather collapse after 6 hours, can be open to traffic. generally divide twice construction, first pass is rarer, and second time is denseer.
2. main performance index is as follows:
Sticking power:＞1.2MPa;
Water resistance: following 3 minutes of normal pressure is waterproof;
Depth of penetration: 10～20mm;
Surface drying time: 2 hours.
3. application characteristic:
1. this kind material divides and evenly is sprayed on for twice on the bituminous pavement, can effectively prevent the early water infringement of asphalt concrete, strengthens the intensity of top layer asphalt concrete, avoids diesel oil stained;
2. can effectively seal fine cracks, fixed caducous pitch particle;
Embodiment three: the application example that the bituminous pavement waterproof curing agent of embodiment one is used to administer the serious bituminous pavement of disease:
1. the material prescription (weight ratio) when handling as the road surface serious plant disease:
Protective agent base-material 100 (prescription and complete processing are identical with example one)
Cement 8
Rubber powder (＜200 order) 10
2. construction technology: will on reach three kinds of materials and once put into curing agent in proportion, stir, manually be painted on pavement disease and seriously locate (a large amount of be full of cracks, check crack place), push away to blow with high pressure positive blower again after rubbing with frothing machine and catch up with moulding to get final product
3. its main performance index is as follows:
Sticking power:＞1.2Mpa;
Water resistance: following 3 minutes of normal pressure is waterproof;
Depth of penetration: 10～20mm;
Surface drying time: 2 hours.
4. application characteristic:
1. this kind material divides and evenly is sprayed on for twice on the bituminous pavement, can effectively prevent the early water infringement of asphalt concrete, strengthens the intensity of top layer asphalt concrete, avoids diesel oil stained;
2. can effectively seal fine cracks, fixed caducous pitch particle;
3. abundant bigger and intensive be full of cracks, the check crack of filling, accelerating the failure of asphalt concrete avoided in the intrusion of anti-sealing.
Embodiment four: the gap-grouting material that the bituminous pavement waterproof curing agent of embodiment one is used as pavement crack
1. fill a prescription (weight ratio):
Protective agent base-material (its prescription and complete processing are with embodiment one) 100
Rubber powder (first pass) 11
Cement (425#) 6
Fine aggregate (0～1.6mm) 28
Hardening accelerator 0.03
2. constructional method: should formulate arrangement and method for construction according to the crack size shape, generally be processed into (V) shape, by prescription material is mixed, first pass is earlier with pure protective agent and rubber powder mixed filling slit, after half an hour, again with this fill a prescription synthetic compound cementation of fissures and refacing, but open to traffic after 3 hours;
3. main performance index:
Sticking power:＞0.8MPa
The strength of materials:＞1.2MPa
Water resistance; 0.3MPa pressure did not seep water in following 30 minutes
Unit elongation: 120%
4. application characteristic:
1., the big slit of effective filling. guarantee not seep water;
2., bigger unit elongation is arranged, fissured further of energy portion is split;
3., certain intensity is arranged, can resist distortion to a certain degree.
Embodiment five: be used for the production technique of Cement Concrete bridge floor as the bituminous pavement waterproof curing agent of water-proof binding layer material:
1. the composition of raw materials of water-proof adhesive base-material (weight ratio):
Pitch 100
Resin 6
Rubber 10
Linking agent 4
Emulsifying agent (compound) 20
Antiaging agent 0.1
Activator 150
Defoamer 0.3
Its complete processing is with embodiment one
2. construction technology:
Directly the product of producing with this prescription is constructed on cement concrete bridge deck, and first pass is rarer, and consumption is few, and second, third is all over denseer, and consumption is more, and the reply bridge floor is conscientiously cleared up before the construction.
3. salient features: its main performance index is as follows:
Sticking power:＞0.8MPa;
Water resistance: following 30 minutes of 0.3MPa hydraulic pressure is waterproof;
Depth of penetration: 50～100 μ m;
Surface drying time: 1 hour.
4. application characteristic:
1.. material property has compatibility: product is the type material of researching and developing at bridge floor of taking into account waterproof layer and the double function of tack coat, and the energy labor and material saving is saved the duration like this;
2.. adhesive property: bond effect is the most critical index of water-proof tack coat, and this material passes through absorption and infiltration dual function to following and basic unit's (Cement Concrete, steel plate or other coating), guarantees to have good adhesive property; To on have thermoplasticity, contact with heated bitumen concrete (about 150 ℃) after the film forming and still maintain very strong fused adhesive property.Cohesive force reaches 0.8～1.5MPa, exceeds several times than other waterproof, matrix material.
3.. waterproof effect: can give full play to coating waterproofing and pervious course waterproof dual function. the perviousness of waterproof effect and film forming compactness and coating is closely related: this material is filmed fine and closely woven, thereby waterproof effect is good; The material fineness is also very crucial, and this material particle size reaches below 2 μ, and perviousness is strong, can fully permeate the also micro-channel of filling basic unit, and this two aspect all is to improve the effective measure of bridge deck water-proof.
4.. endurance quality:, improved the durability index of the performance that comprises fatigue strength, UV resistant radiation, heat-resisting, anti-ozone, aspect such as corrosion-resistant, water-fast by the acting in conjunction of multiple additives and emulsifying agent.
5.. anti-fatigue performance is good: because plasticity is good under this material normal temperature, construction thickness is appropriate, thereby anti-fatigue performance is good, and can fully absorb between asphalt mixture surfacing and the cement bridge floor (or steel bridge face) owing to bear the relative displacement that repeated stress produces, be unlikely and cause interlayer to separate and influence is mated formation a layer work-ing life.
6.. stability in storage: this material is difficult for segregation and rotten, and the storage quality guaranteed period reached more than 2 years.
7.. environmental-protecting performance: do not contain poisonous in the prescription of this material complexity or environment is had the raw material of pollution; The course of processing (pre-treatment of raw material, modification, emulsification and mixing process) is physical treatment technology, does not have bad chemical reaction process, and technological process does not have discharge and waste; Do not contain volatile organic solvent, its solvent is a water, and construction concentration can be allocated as required at the scene, can not cause secondary pollution to environment in the construction process.
Embodiment six: as the production technique of the bituminous pavement waterproof curing agent of the water-proof tack coat of steel bridge face
1. fill a prescription (weight ratio):
Pitch 100
Rubber powder 6
Resin 9
Rubber 15
Linking agent 4
Coupling agent 5
Emulsifying agent (compound) 10
Antiaging agent 0.1
Activator 35
Defoamer 0.3
Its complete processing is identical with embodiment one.
2. construction technology
Directly the product of producing with this prescription is constructed on the steel bridge face, divides the multipass construction by the thickness of design requirements, and first pass is rarer, and consumption is few, and second, third is all over denseer, and consumption is more, tackles bridge floor before the construction and conscientiously clears up.
3. salient features: its main performance index is as follows:
Sticking power:＞1.5MPa;
Water resistance: following 30 minutes of 0.3MPa hydraulic pressure is waterproof;
The strength of materials:＞2MPa;
Surface drying time: 1 hour;
Do solid work the time: 8 hours
4. application characteristic:
It is identical with embodiment five.
Embodiment seven, a kind of coating thickness measurement method that above-mentioned bituminous pavement waterproof curing agent is applied in asphalt highway
The on-the-spot used instrument of thickness that detects is made of receiver and two instruments of thickness gauge, and the receiver diameter is the disk of Φ 173mm, area 0.1m
2, during construction this disk being placed needs somewhere, the road surface of spray paint, after the been sprayed, takes by weighing the weight difference G of disk before and after connecting material at every turn
1(g) the weight difference G of disk and before and after the oven dry
2(g), pass through dried bulk density and the pavement structure coefficient conversion spraying consumption and the spraying nominal thickness of this kind material of mensuration in advance again, available following formula calculating:
Construction consumption (containing volatile components such as solidifying agent, activator) is represented with G:
G＝10G
1(g/m
2)
The coating nominal thickness is represented with B:
B＝10
-3G
2/1.07(mm)
Coating actual (real) thickness δ=kB
In the formula: k is a structure coefficient, and is relevant with the road surfaces construction depth, determines as follows according to test:
| Sequence number | The form of asphalt concrete | The pattern code name | Structure coefficient (k) | Remarks |
| 1 | The antiskid compact-type | AK-13A | 0.68～0.91 | |
| 2 | The half-open grating of antiskid | AK-13B | 0.46～0.76 | |
| 3 | The compact-type grating | AC16-I | 0.79～0.95 | |
| 4 | The compact-type grating | AC-13I | 0.73～0.88 |
Claims (2)
1. bituminous pavement waterproof curing agent is characterized in that being made up of the material of following weight part ratio:
Pitch 100
Rubber powder 2～20
Resin 3～10
Rubber 2～16
Linking agent 2～10
Coupling agent 1～6
Compound emulsifying agent 1～20
Antiaging agent is an amount of
Activator 30～300
Pore forming material is an amount of
Defoamer is an amount of
In above-mentioned materials, rubber powder is that old tire becomes ultra-fine powder state after processing, resin is the HMA polymkeric substance, rubber is SBS, and compound emulsifying agent is to be formed by cationic emulsifier, poly-amido silicon oil and small amounts of inorganic fine aggregate Compound Machining, and antiaging agent is a uvioresistant anti-aging agent and mica powder is composite forms, activator is a water, defoamer is an organic silicone oil, and pore forming material is the organic acid soap, the on-the-spot adding before the construction.
2. the production technique of a bituminous pavement waterproof curing agent as claimed in claim 1 is characterized in that including pre-treatment of raw material, composite modified, emulsification, molten refining four procedures of interpolation subsidiary material:
1. pre-treatment of raw material operation: mean the bituminous dehydration of heating, the bubble of rubber powder rises, moulds to be practiced and thin-pass, and emulsifying agent is mixed with composite emulsion;
2. composite modified operation: behind the pitch and rubber powder preparation, rubber, linking agent, coupling agent and mixed with resin stirring heating with preheating, under 175～220 ℃ of high temperature and 0.01～0.05Mpa vacuum through high speed shear repeatedly with grind the ultra-fine mixture-polymer composite gel that forms particle diameter＜2 μ m;
3. emulsification process: by emulsifying device, with operation polymer composite gel 2. and the composite emulsion for preparing, defoamer under 80～90 ℃ of temperature and 0.7～1Mpa pressure through further emulsification processing, form emulsion;
4. add the subsidiary material operation: in operation emulsion 3., add and comprise ageing-resistant subsidiary material, the further molten refining of processing under vacuum, then cooling waterproof curing agent base-material finished product;
Above-mentioned four procedures all will carry out in reactor, and will carry out continuously stirring to material in the container;
Composite emulsion in the three process will dissolve stirring heating in advance, and then polymer composite gel and composite emulsion is sent in proportion carry out emulsification in the emulsification pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100514957A CN100398610C (en) | 2004-09-16 | 2004-09-16 | Waterproof sealing compound for asphalt road surface, production and applied constructing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100514957A CN100398610C (en) | 2004-09-16 | 2004-09-16 | Waterproof sealing compound for asphalt road surface, production and applied constructing process |
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| CN100398610C true CN100398610C (en) | 2008-07-02 |
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| CN100523387C (en) * | 2006-05-26 | 2009-08-05 | 中国水利水电科学研究院 | Cold construction seal coat for asphalt concrete anti-seepage panel and construction technique thereof |
| CN101177534A (en) * | 2006-11-09 | 2008-05-14 | 深圳市海川实业股份有限公司 | High-viscosity bitumen modifier |
| KR101002085B1 (en) * | 2010-09-16 | 2010-12-17 | 주식회사 알. 브이 | Solvent-free asphalt waterproofing material for cold applications modified silicon polymer and method for the same |
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