CN104788973A - Dust-suppression and haze-reduction asphalt modifier and preparation method thereof - Google Patents
Dust-suppression and haze-reduction asphalt modifier and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a dust-suppression and haze-reduction asphalt modifier. The modifier is a composite material and comprises a dust-suppression component and an anti-stripping component, wherein the dust-suppression component comprises one or more of calcium chloride, ferric chloride, aluminium chloride, calcium oxalate and potassium oxalate, and the anti-stripping component comprises one or more of calcium lignosulphonate, sodium lignosulphonate and petroleum resin. The invention further discloses a preparation method of the dust-suppression and haze-reduction asphalt modifier. The method comprises steps as follows: weighing out the dust-suppression component and the anti-stripping component in a certain proportion; loading the dust-suppression component and the anti-stripping component into mixing equipment for mixing. The dust-suppression and haze-reduction asphalt modifier can be directly used as one component of a road material and is added to matrix asphalt for preparation of dust-suppression and haze-reduction asphalt, then the dust-suppression and haze-reduction asphalt is used as a cementing material for paving of a road, dust suppression and haze reduction effects are realized, and other properties of the asphalt road are not affected.
Description
Technical field
The invention belongs to asphalt roads and field of environment engineering technology, relate to a kind of asphalt modifier and preparation method thereof, particularly relate to a kind of dust suppression and subtract haze asphalt modifier and preparation method thereof.
Background technology
In recent years, frequently occur at China's Jing-jin-ji region and North China's haze weather, a lot of city meets with persistence haze weather on a large scale to festival-gathering autumn and winter, brings have a strong impact on to the normal trip of people and daily life.Atmosphere polluting problem has caused extensive concern both domestic and external; research shows; some harmful and noxious substances in air can cause the destruction of irrecoverability to human physiological functions, have a strong impact on the physical and mental health of people, therefore administer haze extremely urgent with the problem of protection of the environment.In some big city environment, automotive emission and road surface airborne dust are topsoil, the principal element of especially PM2.5 pollution.
Transportation industry is resource occupation type and energy consumption type industry, and the links of Transportation Infrastructure Construction is all closely related with environment protection.China's Beijing-tianjin-hebei Region dry air, the particulate matter such as dust very easily suspend in atmosphere, and in order to reduce the impact of haze, often carry out watering to road falls haze to environmental sanitation department needs.According to statistics, Beijing consumes the water resources of more than 6000 tons every year on average for humidifying road surface, and this, for the serious deficient North City of water resources, will cause serious water resource waste.
At present, the dust-suppression method generally used both at home and abroad is in road surface watering or sprays dust-inhibitor at road surface.Along with the continuous progress of polymer fine chemical technology, the dust-inhibitor of some water suction humidity-preserving types have also been obtained fast development, but these dust-inhibitors are expensive, function singleness, environmental compatibility are poor, have certain toxicity, the dust suppression cycle short (the longest is about 90 days), can not dust suppression for a long time, cost relatively high, and ecotope is caused to the impact of irrecoverability.Therefore, be badly in need of a kind of dust suppression of exploitation and subtract haze type road surface to solve the various environment, economy and the social concern that exist at present.
Publication number is that the patent of invention of CN103242805A discloses a kind of Novel environment-friendlyroad road surface dust suppressant, comprises base oil, water and tensio-active agent, and the parts by weight of each raw material are: base oil 4-6, water 93.5-95.5, tensio-active agent .01-1.0.The preparation method of this dust-inhibitor is base oil is carried out thermal pretreatment, reaches softening temperature, then adds a kind of tensio-active agent, mixes; Heating water, reaches more than 80 DEG C, then adds another kind of tensio-active agent, mixes; Above-mentioned two kinds of mixtures are mixed, therefrom samples, with clear water dilution 30-80 times, after shaking up, can dust-inhibitor be obtained.This road dust inhibitor is sprayed at road surface, makes the particulate matter such as dust be bonded to Stabilized Soil, drops on road surface, but the dust suppression cycle of this dust-inhibitor is short, can not dust suppression for a long time, needs constantly to road surface spraying dust-inhibitor.
Publication number is that the patent of invention of CN104231855A discloses a kind of bituminous pavement and subtracts haze coating, its mass fraction consists of: nano titanium oxide 1 part, active oxidizer 1-5 part, epoxy resin 7-8 part, solidifying agent 2-3 part, auxiliary agent 2-4 part, described solidifying agent is modified fatty amine class I liquid I solidifying agent and special type composite material epoxy hardener is the mixture that 2-4:1 forms in mass ratio, and described auxiliary agent is defoamer and silicon carbide, carbon black is mixture that 1:2-4:1 forms in mass ratio.This road surface subtracts haze coating can particulate matter in adsorb atmospheric, and reach and subtract haze effect, but this coating is exposed to road surface, life-time service is easily destroyed, difficult in maintenance, thus loses and subtract haze effect.
Summary of the invention
For solving problems of the prior art, the invention provides a kind of dust suppression and subtract haze asphalt modifier, its object is to solve existing haze problem, reduce unnecessary water resource waste, this dust suppression can be utilized to subtract haze asphalt modifier preparation dust suppression and to subtract haze pitch, haze pitch is subtracted as agglutinate paved roads again using this dust suppression, this road is enable to absorb moisture in air, increase the dust severe of road surface, thus make the dust of road surface be not easy to be taken away by vehicular traffic, reach the object that dust suppression subtracts haze.
For achieving the above object, the technical solution used in the present invention is, a kind of dust suppression subtracts haze asphalt modifier, is matrix material, and described dust suppression subtracts haze asphalt modifier and comprises dust suppression component and antistripping component.
At present, generally adopt both at home and abroad the mode of spraying dust-inhibitor (comprising water) at road surface to carry out dust suppression and subtract haze, but the anti-dust effect that reality plays at road surface sprinkling dust-inhibitor is very micro-, effectively dust suppression can not subtract haze, time length is shorter, and expensive, cost performance is lower, there is potential harm to ecotope.And dust suppression of the present invention subtract haze asphalt modifier can directly as one of the composition of road-making material, added in matrix pitch and prepare dust suppression and subtract haze pitch, haze pitch is subtracted as agglutinate paved roads again using this dust suppression, thus make dust suppression subtract haze effect more obviously, more outstanding, more lasting, cost performance is higher.
Described dust suppression component is the key component that this dust suppression subtracts haze asphalt modifier, and its effect is that dust suppression subtracts haze; Described antistripping component, for improving the adhesivity of material, effectively can prevent mineral aggregate from peeling off and come off, avoid road to ftracture.Dust suppression component is combined with antistripping component, neither affects the properties of road and normal using function, adequately achieve again the effect that dust suppression subtracts haze.
Preferably, described dust suppression component is the material being easy to deliquescence under normal temperature.Under the physical environment of routine or in air, moisture can be absorbed, be easy to the material of deliquescence and all can be used as dust suppression component of the present invention.Described normal temperature is the temperature of about 25 DEG C.
In above-mentioned either a program preferably, described dust suppression component comprises one or several in calcium chloride, iron(ic) chloride, aluminum chloride, caoxalate and potassium oxalate.Calcium chloride is common mineral compound, and water absorbability is extremely strong, to be exposed in air very easily deliquescence.Iron(ic) chloride is common covalent compound, soluble in water, and has strong water-absorbent, can absorb the moisture in air and deliquescence.Aluminum chloride is common covalent compound, has good water-absorbent, is exposed in air and is easy to deliquescence.Caoxalate and potassium oxalate also have water-absorbent, easily absorb the moisture in air and deliquescence.This several material can individually as dust suppression component, also can using any several combinations of substances as dust suppression component.The present invention proves through lot of experiments, when choosing any several combinations of substances, the proportioning of its various material can be selected arbitrarily, as long as the final content of formulated dust suppression component meets the demands, regardless of the proportioning selecting which kind of material above-mentioned or various material, all can reach equal dust suppression and subtract haze effect.
In above-mentioned either a program preferably, described antistripping component comprises one or several in calcium lignin sulphonate, sodium lignosulfonate and petroleum resin.Calcium lignin sulphonate is nontoxic, has satisfactory stability, dispersiveness and cohesiveness.Sodium lignosulfonate has satisfactory stability and dispersiveness, can be adsorbed on the surface of various solid particle.Petroleum resin have good chemical stability, and have the feature regulating viscosity and Heat stability is good, and cheap, nontoxic, environmentally friendly.This several material can individually as antistripping component, also can using any several combinations of substances as antistripping component.The present invention proves through lot of experiments, when choosing any several combinations of substances, the proportioning of its various material can be selected arbitrarily, as long as the final content of formulated antistripping component meets the demands, regardless of the proportioning selecting which kind of material above-mentioned or various material, all can reach equal adhesion property, the effect preventing road from ftractureing is identical.
The dust suppression be composited by any one dust suppression component above-mentioned and any one antistripping component above-mentioned subtracts haze asphalt modifier to be had same dust suppression and subtracts haze and prevent the effect of pavement cracking.
In above-mentioned either a program preferably, the mass percent that described dust suppression subtracts each component in haze asphalt modifier is, dust suppression component 50-95%, antistripping component 5-50%.
In above-mentioned either a program preferably, the mass percent that described dust suppression subtracts each component in haze asphalt modifier is, dust suppression component 70-95%, antistripping component 5-30%.
In above-mentioned either a program preferably, the mass percent that described dust suppression subtracts each component in haze asphalt modifier is, dust suppression component 80-95%, antistripping component 5-20%.
The present invention proves through lot of experiments: if the addition of dust suppression component is lower than 50%, then do not have dust suppression and subtract the DeGrain that the effect of haze or dust suppression subtract haze; If the addition of dust suppression component is higher than 95%, then the effect that dust suppression subtracts haze there will be no significantly improve or dust suppression to subtract the effect of haze substantially constant, therefore continue to add dust suppression component, cause raw-material waste, raise the cost.If the addition of antistripping component is lower than 5%, then do not have adhesive attraction or adhesive attraction is not obvious, road can ftracture; If the addition of antistripping component is higher than 50%, then adhesive attraction there will be no significantly improve or adhesive attraction substantially constant, therefore continue to add antistripping component, cause raw-material waste, raise the cost.Only have the dust suppression component and antistripping component of adding proper content, the dust suppression that could form best effect subtracts haze asphalt modifier, and this dust suppression subtracts the normal usage function that haze asphalt modifier neither affects road, adequately achieves again the effect that dust suppression subtracts haze.Preferably, dust suppression component is 70-95%, antistripping component is 5-30%; More preferably, dust suppression component is 80-95%, antistripping component is 5-20%.
Dust suppression of the present invention subtracts haze asphalt modifier, nontoxic, pollution-free, non-corrosiveness, and starting material are common, easily obtain, cheap, and dust suppression to subtract haze respond well, environmentally friendly, there is important economic implications and social effect.This dust suppression subtracts haze asphalt modifier can be widely used in the regions such as urban road, street, airport, harbour and mine.
The present invention also provides a kind of above-mentioned dust suppression to subtract the preparation method of haze asphalt modifier, comprises the following steps:
(1) dust suppression component and antistripping component are taken according to a certain percentage;
(2) mix and stir in dust suppression component and antistripping component loading mixing apparatus;
Described dust suppression component and described antistripping component mix and stir rear formation matrix material, and described matrix material is that dust suppression subtracts haze asphalt modifier.
Preferably, described dust suppression subtracts 0.5-1.5 times that the addition of haze asphalt modifier is matrix pitch.
In above-mentioned either a program preferably, described dust suppression subtracts 0.8-1.2 times that the addition of haze asphalt modifier is matrix pitch.
In above-mentioned either a program preferably, described dust suppression subtracts 1.0 times that the addition of haze asphalt modifier is matrix pitch.
In above-mentioned either a program preferably, the temperature of mixing and stirring of described dust suppression component and described antistripping component is 20-40 DEG C.
In above-mentioned either a program preferably, the temperature of mixing and stirring of described dust suppression component and described antistripping component is 25-30 DEG C.
The temperature of mixing and stirring of described dust suppression component and described antistripping component is normal temperature (about 25 DEG C).The present invention proves through lot of experiments, and at the temperature of 20-40 DEG C, dust suppression component and antistripping component are all in free-pouring state, good fluidity, is conducive to the two fully mixing, and evenly, the dust suppression of preparation subtracts haze asphalt modifier for liquid, has good mobility.Preferably, mixing and stirring temperature is 25-30 DEG C.
In above-mentioned either a program preferably, the mixing time of described dust suppression component and described antistripping component is 90-150s.
In above-mentioned either a program preferably, the mixing time of described dust suppression component and described antistripping component is 100-120s.
The present invention proves through lot of experiments, and within the mixing time of 90-150s, two kinds of materials can fully mix.Preferably, the mixing time is 100-120s.
In above-mentioned either a program preferably, the mass percent that described dust suppression subtracts each component in haze asphalt modifier is, dust suppression component 50-95%, antistripping component 5-50%.
In above-mentioned either a program preferably, the mass percent that described dust suppression subtracts each component in haze asphalt modifier is, dust suppression component 80-95%, antistripping component 5-20%.
In above-mentioned either a program preferably, described dust suppression component comprises one or several in calcium chloride, iron(ic) chloride, aluminum chloride, caoxalate and potassium oxalate.
In above-mentioned either a program preferably, described antistripping component comprises one or several in calcium lignin sulphonate, sodium lignosulfonate and petroleum resin.
Dust suppression of the present invention subtracts the preparation method of haze asphalt modifier, dust suppression component is organically combined with antistripping component, and technique is simple, and easy to operate, preparation process is pollution-free, and cost is low.Adopting the dust suppression prepared of the method to subtract haze asphalt modifier can directly as one of the composition of road-making material, added in matrix pitch and prepare dust suppression and subtract haze pitch, haze pitch is subtracted as agglutinate paved roads again using this dust suppression, reach the effect that dust suppression subtracts haze, therefore fundamentally solve haze problem.
Dust suppression of the present invention subtracts haze asphalt modifier can realize the application in Bituminous Pavement construction work.Asphalt production department adopts dust suppression to subtract haze asphalt modifier to prepare after dust suppression subtracts haze pitch, and dust suppression is subtracted haze pitch and be transported to working-yard blending station, and save with bituminous pitch storing tank, then preparation dust suppression subtracts haze asphalt further.
The present invention also provides a kind of dust suppression to subtract haze pitch, is matrix material, and described dust suppression subtracts haze pitch and comprises matrix pitch and dust suppression subtracts haze asphalt modifier.Described dust suppression subtract haze asphalt modifier be above-mentioned any one.
Preferably, described dust suppression subtracts haze asphalt modifier and comprises dust suppression component and antistripping component.
In above-mentioned either a program preferably, described dust suppression component comprises one or several in calcium chloride, iron(ic) chloride, aluminum chloride, caoxalate and potassium oxalate.
In above-mentioned either a program preferably, described antistripping component comprises one or several in calcium lignin sulphonate, sodium lignosulfonate and petroleum resin.
In above-mentioned either a program preferably, the mass percent that described dust suppression subtracts each component in haze asphalt modifier is, dust suppression component 50-95%, antistripping component 5-50%.Preferably, dust suppression component is 70-95%, antistripping component is 5-30%; More preferably, dust suppression component is 80-95%, antistripping component is 5-20%.
In above-mentioned either a program preferably, the mass percent that described dust suppression subtracts each component in haze pitch is, matrix pitch 10-80%, dust suppression subtract haze asphalt modifier 20-90%.Preferably, matrix pitch is 20-70%, to subtract haze asphalt modifier be 30-80% in dust suppression.
Dust suppression of the present invention subtracts haze pitch, nontoxic, pollution-free, starting material are common, cheap, environmentally friendly, there is good water suction moisture retention, under the constant condition of other performances, the moisture in air can be absorbed, the severe of dust increased, accelerate the settling velocity of dust, to reach the effect that dust suppression subtracts haze.This dust suppression subtracts haze pitch can be widely used in the regions such as urban road, street, airport, harbour and mine.
The present invention also provides a kind of above-mentioned dust suppression to subtract the preparation method of haze pitch, comprises the following steps:
(1) matrix pitch is heated to mix and stir temperature;
(2) dust suppression is subtracted haze asphalt modifier to add in the matrix pitch being heated to mix and stir temperature and mix and stir;
(3) mixture matrix pitch after mixing and stirring and dust suppression being subtracted haze asphalt modifier is put into baking oven and is grown;
Described dust suppression subtracts the matrix material that haze asphalt modifier is dust suppression component and antistripping component.
Preferably, described matrix pitch and dust suppression subtract the temperature of mixing and stirring of haze asphalt modifier is 110-160 DEG C.More preferably, mixing and stirring temperature is 130-150 DEG C.
In above-mentioned either a program preferably, described matrix pitch and dust suppression subtract the mixing time of haze asphalt modifier is 5-60min.Preferably, the mixing time is 20-40min.
In above-mentioned either a program preferably, described matrix pitch and dust suppression subtract the developmental temperature of haze asphalt modifier is 130-150 DEG C.
In above-mentioned either a program preferably, described matrix pitch and dust suppression subtract the development time of haze asphalt modifier is 20-40min.
In above-mentioned either a program preferably, the mixing method that described matrix pitch and dust suppression subtract haze asphalt modifier is shear agitation, and stir speed (S.S.) is 2000-10000r/min.Use boxshear apparatus to carry out high speed to mix and stir, stir speed (S.S.) is preferably 4000-6000r/min.
In above-mentioned either a program preferably, the mass percent that described dust suppression subtracts each component in haze pitch is, matrix pitch 10-80%, dust suppression subtract haze asphalt modifier 20-90%.Preferably, matrix pitch is 20-70%, to subtract haze asphalt modifier be 30-80% in dust suppression.
The present invention also provides a kind of dust suppression to subtract haze asphalt, is matrix material, and described dust suppression subtracts haze asphalt and comprises mineral aggregate and dust suppression subtracts haze pitch.Described dust suppression subtract haze pitch be above-mentioned any one.
Preferably, described dust suppression subtracts haze pitch and comprises matrix pitch and dust suppression subtracts haze asphalt modifier.Described dust suppression subtract haze asphalt modifier be above-mentioned any one.
In above-mentioned either a program preferably, described dust suppression subtracts haze asphalt modifier and comprises dust suppression component and antistripping component.
In above-mentioned either a program preferably, described dust suppression component comprises one or several in calcium chloride, iron(ic) chloride, aluminum chloride, caoxalate and potassium oxalate.
In above-mentioned either a program preferably, described antistripping component comprises one or several in calcium lignin sulphonate, sodium lignosulfonate and petroleum resin.
In above-mentioned either a program preferably, the mass percent that described dust suppression subtracts each component in haze asphalt modifier is, dust suppression component 50-95%, antistripping component 5-50%.Preferably, dust suppression component is 70-95%, antistripping component is 5-30%; More preferably, dust suppression component is 80-95%, antistripping component is 5-20%.
In above-mentioned either a program preferably, the mass percent that described dust suppression subtracts each component in haze pitch is, matrix pitch 10-80%, dust suppression subtract haze asphalt modifier 20-90%.Preferably, matrix pitch is 20-70%, to subtract haze asphalt modifier be 30-80% in dust suppression.
In above-mentioned either a program preferably, described mineral aggregate is alkali aggregate.
In above-mentioned either a program preferably, described mineral aggregate is basalt and/or diabase.
In above-mentioned either a program preferably, the particle diameter of described mineral aggregate is 13.2-16.0mm, 4.75-9.5mm, 0.15-2.36mm and 0-0.075mm.
In above-mentioned either a program preferably, in described mineral aggregate, the mass percent of each particle diameter mineral aggregate is, particle diameter 13.2-16.0mm is 0-20%, particle diameter 4.75-9.5mm is 15-50%, particle diameter 0.15-2.36mm is 40-70%, particle diameter 0-0.075mm is 10-15%.
The grating of described mineral aggregate need meet the requirement of " standard specification for construction and acceptance of highway asphalt pavement " (JTG E20-2011).
In above-mentioned either a program preferably, the mass percent that described dust suppression subtracts each component in haze asphalt is, mineral aggregate 80-99%, dust suppression subtract haze pitch 1-20%.Preferably, mineral aggregate is 90-97%, to subtract haze pitch be 3-10% in dust suppression.
Dust suppression of the present invention subtracts haze asphalt, effectively can absorb the moisture in air, formed at road surface and there is certain thickness moisture film, and then increase the water capacity of road table dust, make road show dust not easily by vehicular traffic band, thus reach the double effects that dust suppression subtracts haze and saving water resource.
The present invention also provides a kind of above-mentioned dust suppression to subtract the preparation method of haze asphalt, comprises the following steps:
(1) prepare dust suppression and subtract haze pitch;
(2) dust suppression is subtracted haze pitch and mineral aggregate mixes and stirs at a certain temperature;
It is the matrix material that matrix pitch and dust suppression subtract haze asphalt modifier that described dust suppression subtracts haze pitch.
Preferably, described mineral aggregate and dust suppression subtract the temperature of mixing and stirring of haze pitch is 100-200 DEG C.More preferably, mixing and stirring temperature is 150-180 DEG C.
In above-mentioned either a program preferably, described mineral aggregate and dust suppression subtract the mixing time of haze pitch is 60-150s.Preferably, the mixing time is 90-120s.
Dust suppression of the present invention subtracts the preparation method of haze asphalt, directly add in matrix pitch by dust suppression being subtracted haze asphalt modifier, be prepared into dust suppression and subtract haze pitch, this dust suppression being subtracted haze pitch directly adds in the mineral aggregate of certain grating again, form dust suppression and subtract haze asphalt, this preparation method is simple, cost control is good, effectively can reduce the level of Inhalable Particulate, thus alleviate topsoil level, reach the effect that dust suppression subtracts haze, and this dust suppression subtracts haze asphalt has good pavement performance.
Embodiment
In order to further understand summary of the invention of the present invention, elaborate the present invention below in conjunction with specific embodiment.
Embodiment one:
A kind of dust suppression subtracts haze asphalt modifier, and be matrix material, described dust suppression subtracts haze asphalt modifier and comprises dust suppression component and antistripping component.
In the present embodiment, dust suppression component comprises calcium chloride, iron(ic) chloride, aluminum chloride, caoxalate and potassium oxalate, and antistripping component comprises calcium lignin sulphonate, sodium lignosulfonate and petroleum resin.
The dust suppression of the present embodiment subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 50%, the mass percent of antistripping component is 50%.
For 5000g matrix pitch, the preparation method that above-mentioned dust suppression subtracts haze asphalt modifier is as follows:
(1) dust suppression component and antistripping component are taken according to a certain percentage;
(2) mix and stir in dust suppression component and antistripping component loading mixing apparatus.
The dust suppression that need prepare subtracts 1.0 times that haze asphalt modifier is matrix pitch, i.e. 5000g.Dust suppression subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 50%, i.e. 2500g, and the mass percent of antistripping component is 50%, i.e. 2500g.
In dust suppression component, the mass percent of each material is, calcium chloride 10%, iron(ic) chloride 25%, aluminum chloride 25%, caoxalate 20% and potassium oxalate 20%.In antistripping component, the mass percent of each material is, calcium lignin sulphonate 35%, sodium lignosulfonate 30% and petroleum resin 35%.
The temperature of mixing and stirring of dust suppression component and antistripping component is 25 DEG C, and the mixing time is 100s.The rotating speed of agitator is 40r/min.
Embodiment two:
A kind of dust suppression subtracts haze asphalt modifier, and be matrix material, described dust suppression subtracts haze asphalt modifier and comprises dust suppression component and antistripping component.
In the present embodiment, dust suppression component comprises calcium chloride, iron(ic) chloride and caoxalate, and antistripping component comprises calcium lignin sulphonate and petroleum resin.
The dust suppression of the present embodiment subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 95%, the mass percent of antistripping component is 5%.
For 5000g matrix pitch, the preparation method that above-mentioned dust suppression subtracts haze asphalt modifier is as follows:
(1) dust suppression component and antistripping component are taken according to a certain percentage;
(2) mix and stir in dust suppression component and antistripping component loading mixing apparatus.
The dust suppression that need prepare subtracts 1.2 times that haze asphalt modifier is matrix pitch, i.e. 6000g.Dust suppression subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 95%, i.e. 5700g, and the mass percent of antistripping component is 5%, i.e. 300g.
In dust suppression component, the mass percent of each material is, calcium chloride 20%, iron(ic) chloride 40% and caoxalate 40%.In antistripping component, the mass percent of each material is, calcium lignin sulphonate 50% and petroleum resin 50%.
The temperature of mixing and stirring of dust suppression component and antistripping component is 30 DEG C, and the mixing time is 90s.The rotating speed of agitator is 40r/min.
Embodiment three:
A kind of dust suppression subtracts haze asphalt modifier, and be matrix material, described dust suppression subtracts haze asphalt modifier and comprises dust suppression component and antistripping component.
In the present embodiment, dust suppression component comprises calcium chloride, aluminum chloride and potassium oxalate, and antistripping component comprises sodium lignosulfonate and petroleum resin.
The dust suppression of the present embodiment subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 80%, the mass percent of antistripping component is 20%.
For 5000g matrix pitch, the preparation method that above-mentioned dust suppression subtracts haze asphalt modifier is as follows:
(1) dust suppression component and antistripping component are taken according to a certain percentage;
(2) mix and stir in dust suppression component and antistripping component loading mixing apparatus.
The dust suppression that need prepare subtracts 0.8 times that haze asphalt modifier is matrix pitch, i.e. 4000g.Dust suppression subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 80%, i.e. 3200g, and the mass percent of antistripping component is 20%, i.e. 800g.
In dust suppression component, the mass percent of each material is, calcium chloride 30%, aluminum chloride 30% and potassium oxalate 40%.In antistripping component, the mass percent of each material is, sodium lignosulfonate 60% and petroleum resin 40%.
The temperature of mixing and stirring of dust suppression component and antistripping component is 20 DEG C, and the mixing time is 150s.The rotating speed of agitator is 40r/min.
Embodiment four:
A kind of dust suppression subtracts haze asphalt modifier, and be matrix material, described dust suppression subtracts haze asphalt modifier and comprises dust suppression component and antistripping component.
In the present embodiment, dust suppression component comprises calcium chloride and caoxalate, and antistripping component comprises calcium lignin sulphonate and sodium lignosulfonate.
The dust suppression of the present embodiment subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 70%, the mass percent of antistripping component is 30%.
For 5000g matrix pitch, the preparation method that above-mentioned dust suppression subtracts haze asphalt modifier is as follows:
(1) dust suppression component and antistripping component are taken according to a certain percentage;
(2) mix and stir in dust suppression component and antistripping component loading mixing apparatus.
The dust suppression that need prepare subtracts 1.5 times that haze asphalt modifier is matrix pitch, i.e. 7500g.Dust suppression subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 70%, i.e. 5250g, and the mass percent of antistripping component is 30%, i.e. 2250g.
In dust suppression component, the mass percent of each material is, calcium chloride 50% and caoxalate 50%.In antistripping component, the mass percent of each material is, calcium lignin sulphonate 60% and sodium lignosulfonate 40%.
The temperature of mixing and stirring of dust suppression component and antistripping component is 40 DEG C, and the mixing time is 120s.The rotating speed of agitator is 40r/min.
Embodiment five:
A kind of dust suppression subtracts haze asphalt modifier, and be matrix material, described dust suppression subtracts haze asphalt modifier and comprises dust suppression component and antistripping component.
In the present embodiment, dust suppression component comprises calcium chloride, and antistripping component comprises calcium lignin sulphonate.
The dust suppression of the present embodiment subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 90%, the mass percent of antistripping component is 10%.
For 5000g matrix pitch, the preparation method that above-mentioned dust suppression subtracts haze asphalt modifier is as follows:
(1) dust suppression component and antistripping component are taken according to a certain percentage;
(2) mix and stir in dust suppression component and antistripping component loading mixing apparatus.
The dust suppression that need prepare subtracts 0.5 times that haze asphalt modifier is matrix pitch, i.e. 2500g.Dust suppression subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 90%, i.e. 2250g, and the mass percent of antistripping component is 10%, i.e. 250g.
The temperature of mixing and stirring of dust suppression component and antistripping component is 25 DEG C, and the mixing time is 120s.The rotating speed of agitator is 40r/min.
Embodiment six:
A kind of dust suppression subtracts haze asphalt modifier, and be matrix material, described dust suppression subtracts haze asphalt modifier and comprises dust suppression component and antistripping component.
In the present embodiment, dust suppression component comprises calcium chloride, iron(ic) chloride, aluminum chloride, caoxalate and potassium oxalate, and antistripping component comprises calcium lignin sulphonate, sodium lignosulfonate and petroleum resin.
The dust suppression of the present embodiment subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 85%, the mass percent of antistripping component is 15%.
For 5000g matrix pitch, the preparation method that above-mentioned dust suppression subtracts haze asphalt modifier is as follows:
(1) dust suppression component and antistripping component are taken according to a certain percentage;
(2) mix and stir in dust suppression component and antistripping component loading mixing apparatus.
The dust suppression that need prepare subtracts 1.5 times that haze asphalt modifier is matrix pitch, i.e. 7500g.Dust suppression subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 85%, i.e. 6375g, and the mass percent of antistripping component is 15%, i.e. 1125g.
In dust suppression component, the mass percent of each material is, calcium chloride 70%, iron(ic) chloride 5%, aluminum chloride 5%, caoxalate 10% and potassium oxalate 10%.In antistripping component, the mass percent of each material is, calcium lignin sulphonate 70%, sodium lignosulfonate 10% and petroleum resin 20%.
The temperature of mixing and stirring of dust suppression component and antistripping component is 25 DEG C, and the mixing time is 110s.The rotating speed of agitator is 40r/min.
Embodiment seven:
A kind of dust suppression subtracts haze pitch, is matrix material, and described dust suppression subtracts haze pitch and comprises matrix pitch and dust suppression subtracts haze asphalt modifier.Described dust suppression subtracts haze asphalt modifier and comprises dust suppression component and antistripping component.
In the present embodiment, dust suppression component comprises calcium chloride, iron(ic) chloride, aluminum chloride, caoxalate and potassium oxalate, and antistripping component comprises calcium lignin sulphonate, sodium lignosulfonate and petroleum resin.
The dust suppression of the present embodiment subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 80%, the mass percent of antistripping component is 20%.
The dust suppression of the present embodiment subtracts in haze pitch, and the mass percent that the mass percent of matrix pitch is 20%, dust suppression subtracts haze asphalt modifier is 80%.
Subtract haze pitch to prepare 10000g dust suppression, need matrix pitch 2000g, dust suppression need be prepared and subtract haze asphalt modifier 8000g.Subtract in the process of haze asphalt modifier in preparation dust suppression, need dust suppression component 6400g, need antistripping component 1600g.
The preparation method that above-mentioned dust suppression subtracts haze asphalt modifier is as follows:
(1) dust suppression component and antistripping component are taken according to a certain percentage;
(2) mix and stir in dust suppression component and antistripping component loading mixing apparatus.
In dust suppression component, the mass percent of each material is, calcium chloride 5%, iron(ic) chloride 60%, aluminum chloride 15%, caoxalate 5% and potassium oxalate 15%.In antistripping component, the mass percent of each material is, calcium lignin sulphonate 5%, sodium lignosulfonate 80% and petroleum resin 15%.
The temperature of mixing and stirring of dust suppression component and antistripping component is 25 DEG C, and the mixing time is 100s.The rotating speed of agitator is 40r/min.
The preparation method that above-mentioned dust suppression subtracts haze pitch is as follows:
(1) matrix pitch is heated to mix and stir temperature;
(2) dust suppression is subtracted haze asphalt modifier to add in the matrix pitch being heated to mix and stir temperature and mix and stir;
(3) mixture matrix pitch after mixing and stirring and dust suppression being subtracted haze asphalt modifier is put into baking oven and is grown.
What matrix pitch and dust suppression subtracted haze asphalt modifier mixes and stirs that temperature is 110 DEG C, the mixing time is 60min; The developmental temperature that matrix pitch and dust suppression subtract haze asphalt modifier is 130 DEG C, development time is 40min.Use boxshear apparatus to carry out high speed to mix and stir, stir speed (S.S.) is 4000r/min.
Embodiment eight:
A kind of dust suppression subtracts haze pitch and preparation method thereof, identical with embodiment seven, unlike:
In the present embodiment, dust suppression component comprises calcium chloride, caoxalate and potassium oxalate, and antistripping component comprises calcium lignin sulphonate and petroleum resin.In dust suppression component, the mass percent of each material is, calcium chloride 25%, caoxalate 45% and potassium oxalate 30%.In antistripping component, the mass percent of each material is, calcium lignin sulphonate 20% and petroleum resin 80%.
The dust suppression of the present embodiment subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 95%, the mass percent of antistripping component is 5%.
The dust suppression of the present embodiment subtracts in haze pitch, and the mass percent that the mass percent of matrix pitch is 10%, dust suppression subtracts haze asphalt modifier is 90%.
Embodiment nine:
A kind of dust suppression subtracts haze pitch and preparation method thereof, identical with embodiment seven, unlike:
In the present embodiment, dust suppression component comprises calcium chloride, iron(ic) chloride, aluminum chloride, caoxalate and potassium oxalate, and antistripping component comprises calcium lignin sulphonate, sodium lignosulfonate and petroleum resin.In dust suppression component, the mass percent of each material is, calcium chloride 2%, iron(ic) chloride 30%, aluminum chloride 40%, caoxalate 26% and potassium oxalate 2%.In antistripping component, the mass percent of each material is, calcium lignin sulphonate 90%, sodium lignosulfonate 5% and petroleum resin 5%.
The dust suppression of the present embodiment subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 85%, the mass percent of antistripping component is 15%.
The dust suppression of the present embodiment subtracts in haze pitch, and the mass percent that the mass percent of matrix pitch is 30%, dust suppression subtracts haze asphalt modifier is 70%.
Embodiment ten:
A kind of dust suppression subtracts haze asphalt, is matrix material, and described dust suppression subtracts haze asphalt and comprises mineral aggregate and dust suppression subtracts haze pitch.Described dust suppression subtracts haze pitch and comprises matrix pitch and dust suppression subtracts haze asphalt modifier.Described dust suppression subtracts haze asphalt modifier and comprises dust suppression component and antistripping component.
In the present embodiment, dust suppression component comprises calcium chloride, iron(ic) chloride, aluminum chloride, caoxalate and potassium oxalate, and antistripping component comprises calcium lignin sulphonate, sodium lignosulfonate and petroleum resin.
In the present embodiment, mineral aggregate is basalt.
The dust suppression of the present embodiment subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 80%, the mass percent of antistripping component is 20%.
The dust suppression of the present embodiment subtracts in haze pitch, and the mass percent that the mass percent of matrix pitch is 20%, dust suppression subtracts haze asphalt modifier is 80%.
The dust suppression of the present embodiment subtracts in haze asphalt, and the mass percent that the mass percent of mineral aggregate is 80%, dust suppression subtracts haze pitch is 20%.
Subtract haze asphalt to prepare 10000g dust suppression, need mineral aggregate 8000g, dust suppression need be prepared and subtract haze pitch 2000g.Subtract in the process of haze pitch in preparation dust suppression, need matrix pitch 400g, dust suppression need be prepared and subtract haze asphalt modifier 1600g.Subtract in the process of haze asphalt modifier in preparation dust suppression, need dust suppression component 1280g, need antistripping component 320g.In the present embodiment, the particle diameter of mineral aggregate and the mass percent of each particle diameter mineral aggregate as shown in table 1.
The particle diameter of table 1 mineral aggregate and the mass percent of each particle diameter mineral aggregate
| Particle diameter (mm) | 13.2 | 9.5 | 4.75 | 2.36 | 0.15 | 0.075 | Be less than 0.075 |
| Mass percent (%) | 4 | 18 | 22 | 34 | 11 | 5 | 6 |
| Weight (g) | 320 | 1440 | 1760 | 2720 | 880 | 400 | 480 |
The preparation method that above-mentioned dust suppression subtracts haze asphalt modifier is as follows:
(1) dust suppression component and antistripping component are taken according to a certain percentage;
(2) mix and stir in dust suppression component and antistripping component loading mixing apparatus.
In dust suppression component, the mass percent of each material is, calcium chloride 40%, iron(ic) chloride 2%, aluminum chloride 2%, caoxalate 30% and potassium oxalate 26%.In antistripping component, the mass percent of each material is, calcium lignin sulphonate 10%, sodium lignosulfonate 15% and petroleum resin 75%.
The temperature of mixing and stirring of dust suppression component and antistripping component is 25 DEG C, and the mixing time is 110s.The rotating speed of agitator is 40r/min.
The preparation method that above-mentioned dust suppression subtracts haze pitch is as follows:
(1) matrix pitch is heated to mix and stir temperature;
(2) dust suppression is subtracted haze asphalt modifier to add in the matrix pitch being heated to mix and stir temperature and mix and stir;
(3) mixture matrix pitch after mixing and stirring and dust suppression being subtracted haze asphalt modifier is put into baking oven and is grown.
What matrix pitch and dust suppression subtracted haze asphalt modifier mixes and stirs that temperature is 110 DEG C, the mixing time is 60min; The developmental temperature that matrix pitch and dust suppression subtract haze asphalt modifier is 130 DEG C, development time is 40min.Use boxshear apparatus to carry out high speed to mix and stir, stir speed (S.S.) is 4000r/min.
The preparation method that above-mentioned dust suppression subtracts haze asphalt is as follows:
(1) prepare dust suppression and subtract haze pitch;
(2) dust suppression is subtracted haze pitch and mineral aggregate mixes and stirs at a certain temperature.
What mineral aggregate and dust suppression subtracted haze pitch mixes and stirs that temperature is 100 DEG C, the mixing time is 150s.
Embodiment 11:
A kind of dust suppression subtracts haze asphalt and preparation method thereof, identical with embodiment ten, unlike:
In the present embodiment, dust suppression component comprises aluminum chloride, caoxalate and potassium oxalate, and antistripping component comprises calcium lignin sulphonate and sodium lignosulfonate.In dust suppression component, the mass percent of each material is, aluminum chloride 55%, caoxalate 2% and potassium oxalate 43%.In antistripping component, the mass percent of each material is, calcium lignin sulphonate 65% and sodium lignosulfonate 35%.
The dust suppression of the present embodiment subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 85%, the mass percent of antistripping component is 15%.
The dust suppression of the present embodiment subtracts in haze pitch, and the mass percent that the mass percent of matrix pitch is 70%, dust suppression subtracts haze asphalt modifier is 30%.
The dust suppression of the present embodiment subtracts in haze asphalt, and the mass percent that the mass percent of mineral aggregate is 90%, dust suppression subtracts haze pitch is 10%.
Embodiment 12:
A kind of dust suppression subtracts haze asphalt and preparation method thereof, identical with embodiment ten, unlike:
In the present embodiment, dust suppression component comprises calcium chloride, iron(ic) chloride, aluminum chloride, caoxalate and potassium oxalate, and antistripping component comprises calcium lignin sulphonate, sodium lignosulfonate and petroleum resin.In dust suppression component, the mass percent of each material is, calcium chloride 20%, iron(ic) chloride 20%, aluminum chloride 20%, caoxalate 20% and potassium oxalate 20%.In antistripping component, the mass percent of each material is, calcium lignin sulphonate 34%, sodium lignosulfonate 33% and petroleum resin 33%.
The dust suppression of the present embodiment subtracts in haze asphalt modifier, and the mass percent of dust suppression component is 95%, the mass percent of antistripping component is 5%.
The dust suppression of the present embodiment subtracts in haze pitch, and the mass percent that the mass percent of matrix pitch is 80%, dust suppression subtracts haze asphalt modifier is 20%.
The dust suppression of the present embodiment subtracts in haze asphalt, and the mass percent that the mass percent of mineral aggregate is 97%, dust suppression subtracts haze pitch is 3%.
The performance test results that dust suppression prepared by embodiment one to embodiment six subtracts haze asphalt modifier is as shown in table 2.
Table 2 dust suppression subtracts the performance test results of haze asphalt modifier
Subtract haze pitch according to " highway engineering pitch and Asphalt Mixture Experiment code " (JTJ E20-2011) to the dust suppression prepared by embodiment seven to embodiment nine and carry out the performance tests such as penetration degree, ductility, softening temperature, test result is as shown in table 3.
Table 3 dust suppression subtracts the performance test results of haze pitch
| Embodiment is numbered | Penetration degree (25 DEG C, 100g, 0.1mm) | Ductility (cm) | Softening temperature (DEG C) |
| Embodiment seven | 90.2 | 25.3 | 53.2 |
| Embodiment eight | 93.0 | 30.3 | 53.6 |
| Embodiment nine | 89.6 | 28.4 | 54.2 |
Dust suppression prepared by embodiment ten to embodiment 12 is subtracted haze asphalt and carry out the test of anti-low-temperature cracking, high temperature dynamic stability and freeze-thaw split, test result as shown in Table 4-6.From test result, it is substantially constant that dust suppression subtracts the crack resistance at low-temperature of haze asphalt, high temperature stability performance and freeze-thaw split performance.
Table 4 dust suppression subtracts the crack resistance at low-temperature test result of haze asphalt
| Embodiment is numbered | Ultimate load (N) | Mid-span deflection (mm) |
| 90# plain asphalt compound | 1994 | 2.30 |
| Embodiment ten | 1982 | 2.27 |
| Embodiment 11 | 1978 | 2.22 |
| Embodiment 12 | 1975 | 2.25 |
Table 5 dust suppression subtracts the high temperature stability performance test result of haze asphalt
| Embodiment is numbered | Dynamic stability (mm/ time) |
| 90# plain asphalt compound | 1285 |
| Embodiment ten | 1369 |
| Embodiment 11 | 1260 |
| Embodiment 12 | 1259 |
Table 6 dust suppression subtracts the freeze-thaw split the performance test results of haze asphalt
| Embodiment is numbered | Voidage (%) | Void in mineral aggregate (%) | Stability (kN) | Flow valuve (0.1mm) |
| 90# plain asphalt compound | 4.8 | 12.7 | 12.4 | 34 |
| Embodiment ten | 4.8 | 13.0 | 12.5 | 35 |
| Embodiment 11 | 4.8 | 12.5 | 12.6 | 38 |
| Embodiment 12 | 4.8 | 12.3 | 12.2 | 36 |
Prepare Marshall Test sample according to " highway engineering pitch and Asphalt Mixture Experiment code " (JTG E20-211), after the test sample prepared being placed in dry environments 72h, carry out water absorbability test.
Test sample (m
0, g) after 105 DEG C of bake dryings, be positioned over 35 DEG C, in the constant-temperature constant-humidity environment of relative humidity RH=80%, after 72h, weigh the weight (m of test sample
p, g), the now constant weight of test sample, reaches dry wet equilibrium state, calculates the average water film thickness=(m of test sample
p-m
0)/0.324, unit is mm, and calculation result is as shown in table 7.Average water film thickness characterizes the wettability power that dust suppression subtracts haze asphalt, and wettability power is larger, illustrates that dust suppression subtracts haze effect better.
Table 7 dust suppression subtracts the average water film thickness of haze asphalt
| Embodiment is numbered | Average water film thickness (mm) |
| AC-16 plain asphalt compound | 0.00 |
| Embodiment ten | 0.62 |
| Embodiment 11 | 0.55 |
| Embodiment 12 | 0.71 |
Those skilled in the art are understood that, dust suppression of the present invention subtracts haze asphalt modifier and preparation method thereof and comprises the summary of the invention of the invention described above specification sheets and the arbitrary combination of embodiment part, as space is limited and not have each scheme of these combination formations to describe one by one for making specification sheets simple and clear.Within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. dust suppression subtracts a haze asphalt modifier, is matrix material, it is characterized in that: described dust suppression subtracts haze asphalt modifier and comprises dust suppression component and antistripping component.
2. dust suppression as claimed in claim 1 subtracts haze asphalt modifier, it is characterized in that: described dust suppression component is the material being easy to deliquescence under normal temperature.
3. dust suppression as claimed in claim 1 subtracts haze asphalt modifier, it is characterized in that: described dust suppression component comprise in calcium chloride, iron(ic) chloride, aluminum chloride, caoxalate and potassium oxalate one or several.
4. dust suppression as claimed in claim 1 subtracts haze asphalt modifier, it is characterized in that: described antistripping component comprise in calcium lignin sulphonate, sodium lignosulfonate and petroleum resin one or several.
5. the dust suppression according to any one of claim 1-4 subtracts haze asphalt modifier, it is characterized in that: the mass percent that described dust suppression subtracts each component in haze asphalt modifier is, dust suppression component 50-95%, antistripping component 5-50%.
6. dust suppression as claimed in claim 5 subtracts haze asphalt modifier, it is characterized in that: the mass percent that described dust suppression subtracts each component in haze asphalt modifier is, dust suppression component 70-95%, antistripping component 5-30%.
7. dust suppression as claimed in claim 5 subtracts haze asphalt modifier, it is characterized in that: the mass percent that described dust suppression subtracts each component in haze asphalt modifier is, dust suppression component 80-95%, antistripping component 5-20%.
8. dust suppression subtracts a preparation method for haze asphalt modifier, comprises the following steps:
(1) dust suppression component and antistripping component are taken according to a certain percentage;
(2) mix and stir in dust suppression component and antistripping component loading mixing apparatus;
It is characterized in that: described dust suppression component and described antistripping component mix and stir rear formation matrix material, described matrix material is that dust suppression subtracts haze asphalt modifier.
9. dust suppression as claimed in claim 8 subtracts the preparation method of haze asphalt modifier, it is characterized in that: the addition that described dust suppression subtracts haze asphalt modifier be the 0.5-1.5 of matrix pitch doubly.
10. dust suppression as claimed in claim 9 subtracts the preparation method of haze asphalt modifier, it is characterized in that: the addition that described dust suppression subtracts haze asphalt modifier be the 0.8-1.2 of matrix pitch doubly.
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| CN107286683A (en) * | 2017-06-12 | 2017-10-24 | 北京建筑大学 | Refrigerant asphalt pavement material, refrigerant asphalt pavement mixture and preparation method thereof |
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