CN104446163A - Fog seal material and preparation method thereof - Google Patents
Fog seal material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a fog seal material used in the field of road maintenance and a preparation method thereof. The fog seal material comprises the following raw materials in parts by weight: 70-97 parts of emulsified asphalt, 3-30 parts of a modifier, 0.5-10 parts of a waterproof agent, 0.5-5 parts of a nano material and 250-500 parts of anti-wear anti-sliding sand. The fog seal material has the characteristics of simple formula, strong adhesion, excellent waterproof property, anti-sliding property and high temperature resistance and the like and is convenient to apply; and meanwhile, since the modifier used in the novel fog seal material is an aqueous polymer modifier and the nano material is added, the aging resistance and water resistance of the highway pavement can be significantly improved and the highway pavement diseases such as seepage damage, small cracks and fine aggregate looseness can be treated, and thus the driving environment of the pavement is greatly improved and the strength and durability of the asphalt pavement are increased.
Description
Technical field
The present invention relates to Road maintenance field of material technology, be specifically related to a kind of mist sealing material and preparation method thereof.
Background technology
After bituminous pavement normally uses several years, road surface starts the phenomenon occurring slight fatigue cracking, loss fine aggregate, and its water permeability improves greatly, road surface water can enter into asphalt through crack or fine aggregate injury region (undisguisedly locating), and this accelerates the damage on road surface further.At this moment the phase, road surface is in substantially intact period, if do not processed in time in this period, can cause the pavement destructions such as check crack, be full of cracks, hole, hole.How processing these above defects, method is a lot, as micro-surface area, thin cover etc., all respectively has relative merits, but sums up, and at this one-phase, most effective means is " mist sealing covers " i.e. " FOG SEAL ", and its expense very cheap.
Mist sealing sprays the special pitch of thin layer, hypertonicity on oil mat; with the waterproof layer forming one deck tight, road surface is closed; play the function on water proof antiseepage, protection road surface; reduce the water destruct on road surface to greatest extent; cohesive force between increase road surface gathers materials, prolonging service life of pavement.Can be used for the loss of light to moderate fines or loose road; renewable and protection old oxidized bitumen road surface; fill up small-sized crack and surface void; deepen the color of bituminous pavement; no matter strengthen the contrast gradient of bituminous pavement and graticule, be that the road that road that the volume of traffic is little or the volume of traffic are large all can use.Mist sealing, as the most effective means of motorway early prevention maintenance, on 2004 years " Second China National Highway science and technology innovation Forum ", using it as maintenance new technology, is promoted in the whole nation.After mist sealing, because material therefor mobility is larger, can penetrate in aggregate seam and go, can flow in crack and go, road pavement "blood transfusion", thus recover road table asphalt adhesive power, fill up minute crack and space, prevent road from showing to ooze under water, Pavement Performance is maintained the 2-3 year, postpone the maintenance project that cost is higher, improve the economic benefit of road.
There are many mist sealing materials both at home and abroad at present, the Chinese patent being 201110335727.1 as application number discloses a kind of composite seal coat for maintenance of surface, described composite seal coat is two-layer altogether, comprise the sand bed of material and emulsified bituminous materials layer, original road surface is composite seal coat carrier, but due to the sand material adopted comparatively thick, common emulsified asphalt adheres to poor, very easily ground off by driving after using for some time, take away, result of use is poor; And for example application number is the Chinese patent of 201110212884.3, employing be the good epoxy resin of cohesiveness as properties-correcting agent, but owing to not adding sliding resistance fine sand and water resisting property material, water resisting property and cling property can be caused to decline; And for example application number be 201210219467.6 and application number be that the Chinese patent of 201010567413.X with the addition of bitumen regenerant, but do not add cohesiveness and sliding resistance material, all can affect road effect.
The research of current mist sealing material is in two directions making progress always, is on the one hand the binding material adopting adhesivity higher from material, is on the other hand to improve from technique to wrap performance between binding agent and sand grains.Water-based material is study new focus at present in road surface application, such as aqueous polyurethane, there are anionic, cationic and non-ionic type three types, in film process, moisture is excluded gradually, crosslinking reaction is there is between molecule, form network structure, not only there is better environmental-protecting performance, and there is the high and high resilience of hardness, adhesive power is strong, the premium propertiess such as oil resistant waterproof, in coatings industry application, played great function, if be applied in mist sealing covers, very large economic benefit and application prospect will be brought.
In sum, all there is wear resistance and the shortcoming poor with road surface adhesivity in a lot of material in use, for improving mist layer sealing shortcoming, also has very large research space.
Summary of the invention
The object of the invention is to there is shortcoming and the technical barrier such as adhesivity, sliding resistance difference for solving current mist sealing material, a kind of mist sealing material and preparation method thereof is provided.
The present invention is achieved by the following technical solution:
A kind of mist sealing material, is made up of the raw material of following weight parts proportioning:
Described modified emulsifying asphalt is made up of the raw material of following weight parts proportioning:
Properties-correcting agent 3-30 part,
Emulsified bitumen 70-97 part;
Described emulsified bitumen is by pitch: the weight ratio of water=40-60:60-40 forms.
Above-mentioned mist sealing material, described nano material is the one in nanoclay, nanometer quarrel powder and carbon ultrafine fiber; Described nanoclay is the one in nano montmorillonite, rubber nano clay, epoxide resin nano clay, polyester nano clay; Described nanometer ground-slag is the one in nano-aluminium oxide, nano silicon, nano titanium oxide.
Described water-resisting agent is the one in waterborne organic silicon, water-based fluorocarbon.
Described wear-proof sliding-proof sand is the one in quartz sand, Black Warrior sand, silicon carbide and diabase sand; The particle size range of described wear-proof sliding-proof sand is 20-100 order (0.15-0.85mm), the one in preferred 20-40 order, 30-60 order, 40-70 order or 70-100 order.
Described properties-correcting agent is the one in cation aqueous polyurethane, anion aqueous polyurethane or non-ionic water polyurethane;
A preparation method for mist sealing material, comprises the steps:
1) by pitch: water=40-60:60-40 weight ratio weighs up each consumption, being added by emulsifying agent in the water of 60-80 DEG C to stir makes it fully dissolve mixing, hydrochloric acid or sodium hydroxide is added in emulsion, stir fully and survey pH value, progressively add, progressively detect, pH is at 1-4 or 10-12 in adjustment, by asphalt heating to 130-160 DEG C, after completing, pitch is slowly added in emulsion and carry out emulsification, add after rear emulsification continues 3-20 minute and pour out emulsified bitumen;
2) add in emulsified bitumen 70-97 weight part by properties-correcting agent 3-30 weight part, water-resisting agent 0.5-10 weight part, stirring at low speed 5-20 minute, after stirring, obtained solid content is the modified emulsifying asphalt of 30-55%;
3) nano material 0.5-5 weight part, wear-proof sliding-proof sand 250-500 weight part are joined in the part by weight modified emulsified bituminous materials of 90-120, be uniformly mixed, mist sealing material can be obtained.
A preparation method for mist sealing material, also can comprise the steps:
1) by pitch: water=40-60:60-40 weight ratio weighs up each consumption, being added by emulsifying agent in the water of 60-80 DEG C to stir makes it fully dissolve mixing, hydrochloric acid or sodium hydroxide is added in emulsion, stir fully and survey pH value, progressively add, progressively detect, pH is at 1-4 or 10-12 in adjustment, by asphalt heating to 130-160 DEG C, after completing, pitch is slowly added in emulsion and carry out emulsification, add after rear emulsification continues 3-20 minute and pour out emulsified bitumen;
2) add in emulsified bitumen 70-97 weight part by properties-correcting agent 3-30 weight part, stirring at low speed 5-20 minute, after stirring, obtained solid content is the modified emulsifying asphalt of 30-55%;
3) water-resisting agent 0.5-10 weight part, nano material 0.5-5 weight part, wear-proof sliding-proof sand 250-500 weight part are joined in the part by weight modified emulsified bituminous materials of 90-120, be uniformly mixed, mist sealing material can be obtained.
Emulsifying agent of the present invention be positively charged ion split soon in asphalt emulsifier, positively charged ion split in asphalt emulsifier, anionic asphalt emulsion nonionic emulsifying agent one or both, emulsifier is 0.4-4%.
Mist sealing material provided by the invention is the novel mist sealing material of a kind of adhesivity, water resisting property, maintenance of highway pavement that wear-proof sliding-proof performance is all more superior.After the present invention is applied to the construction of mist sealing covers, aqueous polymer (as aqueous polyurethane) then enhances the sticky toughness of emulsion, watery water-proofing agent (as waterborne organic silicon) then improves the water resisting property of attaching surface, sprayed after the emulsion and superfine wear-proof sliding-proof sand (particle diameter 0.15-0.85mm) that with the addition of this water-based material are uniformly mixed, brushing can form one deck very thin protective layer 1-3 time on bituminous pavement, to bituminous pavement, there is a kind of shielding protection effect, sunlight can be resisted, air is aging to former pavement asphalt, the Moisture Damage that prevention moisture invades bituminous pavement and causes, the gasoline that protection pavement asphalt is not revealed, diesel oil, the ramollescence of the lightweight oil contents such as machine oil, prevent rainwater or other chemical to the erosion of bituminous pavement, the matrix material of high-adhesiveness is prior in addition and high-wearing feature is gathered materials, and (such as quartz sand) fully wraps, and ensure that the cling property that surface is necessary and its weather resistance.
Compared to the prior art, tool of the present invention has the following advantages:
1, mist sealing material of the present invention has formula simply, easy to use, and adhesive capacity is strong, the features such as water resistance, wear-proof sliding-proof and resistance to elevated temperatures are superior;
2, in mist sealing material of the present invention, properties-correcting agent is aqueous high molecular material, and add nano material, not only can significantly improve resistance to deterioration and the weather resistance of pavement of road, and can to highway pavement diseases as infiltration infringement, minute crack, fine aggregate are loose etc. processes, thus greatly improves the environment on road surface and increase intensity and the weather resistance of bituminous pavement.
Embodiment
Further describe the present invention below in conjunction with specific embodiment, advantage and disadvantage of the present invention will be more clear along with description.But these embodiments are only exemplary, do not form any restriction to scope of the present invention.It will be understood by those skilled in the art that and can modify to the details of technical solution of the present invention and form or replace down without departing from the spirit and scope of the present invention, but these amendments and replacement all fall within the scope of protection of the present invention.
Embodiment 1:
A kind of mist sealing material and preparation method thereof, is realized by following steps:
1) in pitch: water=40:60 ratio weighs up each consumption, positively charged ion is split soon asphalt emulsifier add in the water of 60 DEG C stir make it fully dissolve mixing, hydrochloric acid is added in emulsion, stir fully and survey pH, progressively add, progressively detect, last pH is 1, by asphalt heating to 130 DEG C, after completing, pitch is slowly added in emulsion and carry out emulsification, add rear emulsification and continue pour out after 3 minutes and obtain cationic emulsified bitumen;
2) be 30% cation aqueous polyurethane 300g by solid content, solid content is that 70% waterborne organic silicon 5g adds in emulsified bitumen 700g, uses low-speed agitator to stir 20 minutes, and after stirring, obtained solid content is about the modified emulsifying asphalt of 37%;
3) by nano material carbon ultrafine fiber 50g, particle size range 30-60 object quartz sand 5000g, join in the above-mentioned 900g modified emulsifying asphalt material prepared, be uniformly mixed, mist sealing material can be obtained.
Embodiment 2:
A kind of mist sealing material and preparation method thereof, is realized by following steps:
1) in pitch: water=55:45 ratio weighs up each consumption, it is made fully to dissolve mixing by splitting asphalt emulsifier in positively charged ion and add in the water of 65 DEG C to stir, hydrochloric acid is added in emulsion, stir fully and survey pH, progressively add, progressively detect, last pH is 4, by asphalt heating to 160 DEG C, after completing, pitch is slowly added in emulsion and carry out emulsification, add rear emulsification and continue to pour out cationic emulsified bitumen after 20 minutes;
2) add in 970g emulsified bitumen by cation aqueous polyurethane 30g, water-resisting agent water-based fluorocarbon 100g, use low-speed agitator to stir 5 minutes, after stirring, obtained solid content is about the modified emulsifying asphalt of 55%;
3) be that 40-70 object diabase sand 2250g joins in the above-mentioned 1080g modified emulsifying asphalt material prepared by nano imvite 50g, particle size range, be uniformly mixed, mist sealing material can be obtained.
Embodiment 3:
A kind of mist sealing material and preparation method thereof, is realized by following steps:
1) in pitch: water=50:50 ratio weighs up each consumption, being added by anionic asphalt emulsion in the water of 80 DEG C to stir makes it fully dissolve mixing, sodium hydroxide is added in emulsion, stir fully and survey pH, progressively add, progressively detect, last pH is 12, by asphalt heating to 145 DEG C, after completing, pitch is slowly added in emulsion and carry out emulsification, add rear emulsification and continue to pour out emulsified bitumen after 10 minutes;
2) add in 800g anionic emulsified bitumen by anion aqueous polyurethane 150g, water-resisting agent waterborne organic silicon 50g, use low-speed agitator to stir 10 minutes, after stirring, obtained solid content is the modified emulsifying asphalt of 40%;
3) be that 20-40 object silicon carbide 3000g joins in the above-mentioned 1000g modified emulsifying asphalt material prepared by rubber nano clay 5g, particle size range, be uniformly mixed, mist sealing material can be obtained.
Embodiment 4:
A kind of mist sealing material and preparation method thereof, is realized by following steps:
1) in pitch: water=45:55 ratio weighs up each consumption, positively charged ion is split soon asphalt emulsifier add in the water of 70 DEG C stir make it fully dissolve mixing, hydrochloric acid is added in emulsion, stir fully and survey pH, progressively add, progressively detect, last pH is 2, by asphalt heating to 160 DEG C, after completing, pitch is slowly added in emulsion and carry out emulsification, add rear emulsification and continue to pour out cationic emulsified bitumen after 15 minutes;
2) add in the 800g emulsified bitumen of above-mentioned preparation by non-ionic water polyurethane 200g, water-resisting agent waterborne organic silicon 80g, use low-speed agitator to stir 18 minutes, after stirring, obtained solid content is the modified emulsifying asphalt of 45%;
3) be that 70-100 object basalt sand 3500g joins in the above-mentioned 1200g modified emulsifying asphalt material prepared by nano-aluminium oxide 30g, particle size range, be uniformly mixed, mist sealing material can be obtained.
Embodiment 5:
A kind of mist sealing material and preparation method thereof, is realized by following steps:
1) in pitch: water=60:40 ratio weighs up each consumption, positively charged ion is split soon asphalt emulsifier add in the water of 80 DEG C stir make it fully dissolve mixing, hydrochloric acid is added in emulsion, stir fully and survey pH, progressively add, progressively detect, last pH is 3, by asphalt heating to 145 DEG C, after completing, pitch is slowly added in emulsion and carry out emulsification, add rear emulsification and continue pour out after 3 minutes and obtain cationic emulsified bitumen;
2) add in 850g emulsified bitumen by cation aqueous polyurethane 150g, use low-speed agitator to stir 5 minutes, after stirring, obtained solid content is the modified emulsifying asphalt of 50%;
3) be that 30-60 object quartz sand 2500g joins in 1000g modified emulsifying asphalt material prepared by above-mentioned steps two by water-resisting agent waterborne organic silicon 100g, epoxide resin nano clay 10g, particle size range, be uniformly mixed, mist sealing material can be obtained.
Embodiment 6:
A kind of mist sealing material and preparation method thereof, is realized by following steps:
1) in pitch: water=55:45 ratio weighs up each consumption, being added by cation asphalt emulgent in the water of 65 DEG C to stir makes it fully dissolve mixing, hydrochloric acid is added in emulsion, stir fully and survey pH, progressively add, progressively detect, last pH is 4, by asphalt heating to 160 DEG C, after completing, pitch is slowly added in emulsion and carry out emulsification, add rear emulsification and continue to pour out cationic emulsified bitumen after 5 minutes;
2) add in 920g emulsified bitumen by cation aqueous polyurethane 80g, use low-speed agitator to stir 10 minutes, after stirring, obtained solid content is about the modified emulsifying asphalt of 55%;
3) be that 40-70 object diabase sand 4800g joins in the above-mentioned 1000g modified emulsifying asphalt material prepared by water-resisting agent water-based fluorocarbon 50g, polyester nano clay 40g, particle size range, be uniformly mixed, mist sealing material can be obtained.
Embodiment 7:
A kind of mist sealing material and preparation method thereof, is realized by following steps:
1) in pitch: water=40:60 ratio weighs up each consumption, being added by anionic asphalt emulsion in the water of 75 DEG C to stir makes it fully dissolve mixing, sodium hydroxide is added in emulsion, stir fully and survey pH, progressively add, progressively detect, last pH is 10, by asphalt heating to 140 DEG C, after completing, pitch is slowly added in emulsion and carry out emulsification, add rear emulsification and continue to pour out emulsified bitumen after 15 minutes;
2) add in 970g anionic emulsified bitumen by anion aqueous polyurethane 30g, use low-speed agitator to stir 10 minutes, after stirring, obtained solid content is the modified emulsifying asphalt of 40%;
3) be that 20-40 object silicon carbide 2500g joins in the above-mentioned 1000g modified emulsifying asphalt material prepared by water-resisting agent waterborne organic silicon 50g, nano silicon 50g, particle size range, be uniformly mixed, mist sealing material can be obtained.
Embodiment 8:
A kind of mist sealing material and preparation method thereof, is realized by following steps:
1) in pitch: water=45:55 ratio weighs up each consumption, positively charged ion is split soon asphalt emulsifier add in the water of 50 DEG C stir make it fully dissolve mixing, hydrochloric acid is added in emulsion, stir fully and survey pH, progressively add, progressively detect, last pH is 2, by asphalt heating to 130 DEG C, after completing, pitch is slowly added in emulsion and carry out emulsification, add rear emulsification and continue to pour out cationic emulsified bitumen after 20 minutes;
2) add in the 800g emulsified bitumen of above-mentioned preparation by non-ionic water polyurethane 200g, use low-speed agitator to stir 18 minutes, after stirring, obtained solid content is the modified emulsifying asphalt of 45%;
3) be that 70-100 object basalt sand 3500g joins in the above-mentioned 1200g modified emulsifying asphalt material prepared by water-resisting agent waterborne organic silicon 80g, nano titanium oxide 20g, particle size range, be uniformly mixed, mist sealing material can be obtained.
Test example 1:
Embodiment 1, embodiment 8 are constructed by following construction technology process:
1) clean road surface: remove dust sandstone, greasy dirt, leaf, the foreign material such as shredded paper, facility such as protection pavement marker graticule and kerbstone etc., carries out pre-treatment to diseases such as cracklins;
2) material stirs: join after being stirred by the above-mentioned novel mist sealing material prepared and have in the high pressure small area spray appliance of even spraying function, modified emulsifying asphalt and wear-proof sliding-proof sand usage ratio are 1:2.5-5;
3) spray: the nozzle of adjustment high pressure spray appliance, the spraying range predetermined according to road surface and route, arrange spread quantity and spray, and modified emulsifying asphalt spread quantity is 0.4-1kg/m
2, wear-proof sliding-proof sand spread quantity is 1-5kg/m
2;
4) close traffic health, waits for breakdown of emulsion and drying;
5) remove protection, recover graticule, conditioned time is get final product open to traffic after 4-12 hour.
The adhesivity of mist sealing material and building stones is detected according to the method for " T0654-2011 emulsified bitumen and mineral aggregate adhesiveness test "; The water shutoff performance of material is determined according to " T0971-93 bituminous pavement infiltration coefficient test method "; According to the method for " T0752-2011 emulsified asphalt slurry seal compound Wet track abrasion test ", wear test is carried out to mist sealing material, detect its abrasion resistance; According to the method for " T 0961-95 manual, paving micromicrofarad measure pavement structural depth test method " and " T 0964-95 portable pendulum tester measures pavement skid resistance value test method ", the impact of mensuration mist sealing material road pavement cling property.
Table 1. embodiment 1 test-results
Table 2. embodiment 8 test-results
From table 1 and table 2 test result, embodiment 1 and the mist sealing material prepared by embodiment 8 solve current mist sealing material and there is shortcoming and the technical barrier such as adhesivity, sliding resistance difference, the adhesivity of material, and wear-proof sliding-proof performance all reaches good level; The construction depth of material road pavement and frictional coefficient affect all very small, the loss of surface friction coefficient is no more than 10%, be only about 3%, and the reduction of pavement seepage coefficient reaches 0mL/min after construction, do not seep water, anti-water damage and the wear-proof sliding-proof performance on the rear road surface of construction are greatly improved.
Claims (7)
1. a mist sealing material, is characterized in that, is made up of the raw material of following weight parts proportioning:
Described modified emulsifying asphalt is made up of the raw material of following weight parts proportioning:
Properties-correcting agent 3-30 part,
Emulsified bitumen 70-97 part;
Described emulsified bitumen is by pitch: the weight ratio of water=40:60-60:40 forms.
2. mist sealing material according to claim 1, is characterized in that: described nano material is the one in nanoclay, nanometer quarrel powder and carbon ultrafine fiber; Described wear-proof sliding-proof sand is the one in quartz sand, Black Warrior sand, silicon carbide and diabase sand; Described water-resisting agent is the one in waterborne organic silicon, water-based fluorocarbon; Described properties-correcting agent is the one in cation aqueous polyurethane, anion aqueous polyurethane or non-ionic water polyurethane.
3. mist sealing material according to claim 2, is characterized in that: described nanoclay is the one in nano montmorillonite, rubber nano clay, epoxide resin nano clay, polyester nano clay; Described nanometer ground-slag is the one in nano-aluminium oxide, nano silicon, nano titanium oxide.
4. mist sealing material according to claim 2, is characterized in that: the particle size range of described wear-proof sliding-proof sand is 20-100 order.
5. mist sealing material according to claim 4, is characterized in that: the particle size range of described wear-proof sliding-proof sand is the one in 20-40 order, 30-60 order, 40-70 order or 70-100 order.
6. a preparation method for mist sealing material according to claim 1, is characterized in that, comprise the steps:
1) by pitch: water=40-60:60-40 weight ratio weighs up each consumption, being added by emulsifying agent in the water of 60-80 DEG C to stir makes it fully dissolve mixing, hydrochloric acid or sodium hydroxide is added in emulsion, stir fully and survey pH value, progressively add, progressively detect, pH is at 1-4 or 10-12 in adjustment, by asphalt heating to 130-160 DEG C, after completing, pitch is slowly added in emulsion and carry out emulsification, add after rear emulsification continues 3-20 minute and pour out emulsified bitumen;
2) add in emulsified bitumen 70-97 weight part by properties-correcting agent 3-30 weight part, water-resisting agent 0.5-10 weight part, stirring at low speed 5-20 minute, after stirring, obtained solid content is the modified emulsifying asphalt of 30-55%;
3) nano material 0.5-5 weight part, wear-proof sliding-proof sand 250-500 weight part are joined in the part by weight modified emulsified bituminous materials of 90-120, be uniformly mixed, mist sealing material can be obtained.
7. a preparation method for mist sealing material according to claim 1, is characterized in that, comprise the steps:
1) by pitch: water=40-60:60-40 weight ratio weighs up each consumption, being added by emulsifying agent in the water of 60-80 DEG C to stir makes it fully dissolve mixing, hydrochloric acid or sodium hydroxide is added in emulsion, stir fully and survey pH value, progressively add, progressively detect, pH is at 1-4 or 10-12 in adjustment, by asphalt heating to 130-160 DEG C, after completing, pitch is slowly added in emulsion and carry out emulsification, add after rear emulsification continues 3-20 minute and pour out emulsified bitumen;
2) add in emulsified bitumen 70-97 weight part by properties-correcting agent 3-30 weight part, stirring at low speed 5-20 minute, after stirring, obtained solid content is the modified emulsifying asphalt of 30-55%;
3) water-resisting agent 0.5-10 weight part, nano material 0.5-5 weight part, wear-proof sliding-proof sand 250-500 weight part are joined in the part by weight modified emulsified bituminous materials of 90-120, be uniformly mixed, mist sealing material can be obtained.
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| CN105541194A (en) * | 2015-12-09 | 2016-05-04 | 长安大学 | Fog seal material and preparation method thereof |
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