CN106630753A - Colored pavement material and preparation method of colored pavement material - Google Patents
Colored pavement material and preparation method of colored pavement material Download PDFInfo
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- CN106630753A CN106630753A CN201510729512.6A CN201510729512A CN106630753A CN 106630753 A CN106630753 A CN 106630753A CN 201510729512 A CN201510729512 A CN 201510729512A CN 106630753 A CN106630753 A CN 106630753A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/14—Polyepoxides
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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- Ceramic Engineering (AREA)
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Abstract
The invention discloses a colored pavement material and a preparation method of the colored pavement material. The pavement material is prepared from a cementing material, colored cavity gap ceramic grains and a phase change material, wherein a preparation method of the colored cavity gap ceramic grains comprises the following steps: (1) adding water into ceramic powder, calcium carbonate powder and a dyestuff and pulping to prepare first pulp; (2) adding a sodium alginate solution into the first pulp and uniformly mixing to obtain second pulp with the solid phase content of 2 weight percent to 30 weight percent; (3) adding gluconolactone powder into the second pulp and uniformly stirring; standing to generate first gel; (4) dehydrating the first gel under an acidic environment to obtain second gel; (5) carrying out solvent displacement on the second gel to obtain third gel; (6) drying, cutting, sintering and crushing the third gel to obtain the colored cavity gap ceramic grains. According to the colored pavement material disclosed by the invention, the temperature sensitivity of the colored pavement material is effectively reduced and the anti-rutting capability of the pavement material is improved.
Description
Technical field
The present invention relates to a kind of ground surface material and preparation method thereof, particularly a kind of colored road surface material and preparation method thereof.
Background technology
Colored road surface has the function of beautifying the environment with warning traffic.Colored road surface is widely used for pointing out which part road road user can use period in which in Europe.It is widely used in providing a single track to special road user in European colored road surface, for example, is exclusively used in the bus zone of public transport, cycle track, equipment of small motor track is exclusively used in the electronic charging station track of emergency services and honored guest card holder.Colored road surface carries out the differentiation of color in some deceleration strips.It is very practical so to make a distinction.Traffic violations can be effectively reduced, increases traffic driving safety.The image in city in addition, the popularization of colored road surface can largely take on a new look, embodies the characteristic in city.The apparent change in city is not only embodied in, the change of urban residential environment is also embodied in.Reduce can city noise pollution, this is because Colorful Asphalt Pavement has preferable sound-absorbing effect, be effectively improved highway and get on the car the phenomenon of noise.
With regard to the existing many researchs both at home and abroad of colored road surface material, main achievement is：
1）Decolourize to add again the pigment of required color to make color paving cementitious matter common albertite, then aggregate is done with natural stone and be mixed with colored road surface material；
2）Color paving cementitious matter is made with Petropols+polymer+aromatic oil+pigment etc., then aggregate is done with natural stone and be mixed and made into colored road surface material；
3）The color paving cementitious matter of reaction-curable is made with resin+curing agent+dilution toughener, then is gathered materials with colour and is mixed and made into colored road surface material.
The first and second coloured silk are the characteristics of spreading cementitious matter：It is required for producing under the high temperature conditions, complex process, high cost, production process pollute environment and color stone color is not bright-coloured, not lasting.
For the third colored road surface material, CN102464863A discloses a kind of color pavement cementing material and its application, bisphenol A epoxide resin, polyamide curing agent and polypropylene glycol diglycidyl ether or phenmethylol are well mixed in the patent, make color pavement cementing material.Then gather materials with colour and be mixed and made into colored road surface compound, for laying colored road surface.While colored road surface making is easy to, the performance of color pavement cementing material is improved, extend the service life of colored road surface.
CN103924496A discloses a kind of laying method of colored ceramic particle anti-skid surface, on the road surface of dry cleansing, the good glue of beach mixing, the ceramic particle polish resistant aggregate that spreading is baked in advance, after dispensing uniformly, aggregate is set to inlay closely using the adhesiveness of primer, then extrusion face glue, so as to form the colored ceramic particle road surface of high intensity.
Coloured silk paving material belongs to surface layer ground surface material mostly, it usually needs bonding with basic road surface, and basic ground surface material is divided into different materials with colorful surface layer material, so having the inter-laminar stress produced because bi-material heat sensitivity is different and causing pavement destruction problem.
CN102731018A discloses a kind of ceramic sand-like composite phase change material and preparation method thereof.Phase-change material and pottery sand are pressed quality 3 by it：7 are well mixed, and vacuum drying adds breeze, obtains composite.Composite is immersed into epoxy emulsion, surface dispenses iron powder.After adding phase-change material, temperature change can be effectively reduced by the phase transition process of phase-change material, and then avoid colored road surface and basis road surface due to different the brought inter-laminar stress problems of material heat sensitivity.
Because pottery sand is used for road surface, the high-strength pottery sand for using high compressive strength is needed.But existing high-strength pottery sand does not have higher porosity, phase-change material is caused all to be absorbed by pottery sand, so as to cause phase-change material to combine with cementitious matter, stress concentration phenomenon will occur at each transformation temperature when road surface stress, in turn result in road surface heavy damage.Furthermore, when the pottery sand of high porosity is prepared, compression strength can be greatly reduced existing method, during for road surface, easily be rolled over by driving broken.
Therefore, how to prepare the ceramic particle of high porosity and high compressive strength to absorb phase-change material, be problem demanding prompt solution so as to avoid phase-change material and cementitious matter from occurring to combine.
The content of the invention
In view of the deficiencies in the prior art, the invention provides a kind of colored road surface material and preparation method thereof.The method of the present invention obtain having be evenly distributed, three-dimensional pore passage structure, the colored lacuna ceramic particle of excellent mechanical performances, so as to the porosity and mechanical strength of colored lacuna ceramic particle has been significantly increased, the temperature sensitivity on road surface is effectively reduced, the rutting resistance of colored road surface material is improve.
The invention provides a kind of preparation method of colored road surface material, the method includes：It is described gather materials be mixed and made into colored road surface material with cementitious matter, wherein, it is described gather materials by colored lacuna ceramic particle by vacuum suction method adsorb phase-change material be obtained, the preparation method of the colored lacuna ceramic particle comprises the steps：
（1）Ceramic powder, Paris white, dyestuff are added into water beating, the first slurry is obtained；
（2）Sodium alginate soln is added in first slurry, is well mixed, obtain the second slurry that solid concentration is 2wt%～30wt%；
（3）Glucolactone powder is added in second slurry, is stirred, stood, generate the first gel；
（4）First gel is dehydrated under sour environment, obtains the second gel；
（5）Second gel carries out solvent displacement, obtains the 3rd gel；
（6）3rd gel is dried, cuts, is sintered and is crushed, colored lacuna ceramic particle is obtained.
In second slurry, the concentration of the sodium alginate is 0.5wt%～5.0wt%, preferably 1wt%～3wt%；The part by weight of the sodium alginate, Paris white and glucolactone powder is（3～7）：1：（1.5～5.5）.
The ceramic powder is 1 with the part by weight of dyestuff：（0.001～0.1）.
In step（3）In, the time of the standing is 1h～48h, and temperature is 20 DEG C～60 DEG C.
Because the solid concentration in slurry only has 2wt%～30wt%, so made by solid concentration in gel it is also very low, convection drying gel is easily caused and caved in, therefore gel needs to deviate from excessive moisture in body.In step（4）In, what first gel was dehydrated under sour environment concretely comprises the following steps：By first soak in glucolactone solution, the time of the immersion is 6h～48h, and it is 0.5wt%～5.0wt%, preferably 1wt%～4wt% that soaking temperature is the concentration of 20 DEG C～50 DEG C glucolactone solution.Used as disposable embodiment, the concrete steps that first gel is dehydrated under sour environment can also be：In step（4）In, time of the immersion is 6h～48h, and soaking temperature is concretely comprising the following steps of being dehydrated under sour environment of 20 DEG C～50 DEG C first gels：By in the first soak inorganic acid solution, the inorganic acid solution is salpeter solution and/or hydrochloric acid solution, and the concentration of the inorganic acid solution is 0.01mol/L～0.10mol/L.
In order to occur caving in when further avoiding being dried, the present invention also needs to be replaced using solvent, further removes moisture.In step（5）In, second gel carries out concretely comprising the following steps for solvent displacement：By the second soak in the tert-butyl alcohol or alcohol solvent, soak time is 6h～48h, and soaking temperature is 20 DEG C～50 DEG C.Solvent displacement solvent used is one or more in ethanol, acetone and the tert-butyl alcohol, preferably ethanol or the tert-butyl alcohol.
In step（6）In, the drying is freeze-drying or drying at room temperature；The method of the sintering includes：250 DEG C～500 DEG C are continuously heating to the speed of 5 DEG C/min～30 DEG C/min, 1h～3h is maintained, sintering temperature is then heated to, sintering temperature is 1200 DEG C～1600 DEG C.
The porosity 60%～80% of the colored lacuna ceramic particle, compression strength is 20MPa～80MPa.
The weight ratio for adsorbing phase-change material amount and the colored lacuna ceramic particle（1～5）：10.
The cementitious matter is with the part by weight for gathering materials（5～20）：100.
The cementitious matter can use conventional use of cementitious matter, can include epoxy resin, curing agent and toughener, and the part by weight of the epoxy resin, curing agent and toughener is 100：（10～50）：（10～50）.Epoxy resin can be E-51, E-44 or E-42 etc.；Curing agent can be pnenolic aldehyde amine hardener, and such as YH-82, toughener can be polypropylene glycol diglycidyl ether, phenmethylol etc..
The colored lacuna ceramic particle adsorbs concretely comprising the following steps for phase-change material using vacuum suction method：Lacuna ceramic particle is loaded in closed container, to container vacuum-pumping and keep 10min～30min again, make the lacuna in its particle be completely in vacuum state, phase-change material is then added into container and is constantly stirred so as to which all lacunas in particle are full of till phase-change material.
After sintering, can be crushed according to the requirement of pavement usage, the particle diameter of the colored lacuna ceramic particle can be 0.5mm～5.0mm.
The ceramic powder is the conventional raw material powder that can sinter ceramics into, can be one or more in cordierite, clay, talcum, zircon, zirconium oxide, spinelle, aluminum oxide, silicate, aluminate, lithium aluminosilicate, feldspar, titanium dioxide, carborundum and silicon nitride.
The phase-change material can be able to be one or more in paraffin class phase-change material, polyalcohols phase-change material, fatty acid phase-change material with conventional use of low-temperature phase-change material.The paraffin class phase-change material can be for example n-dodecane to one or more in positive octacosane, the polyalcohols phase-change material for example can be polyethylene glycol, one or more in pentaerythrite, neopentyl glycol, trishydroxymethylaminomethane, trimethylolpropane, 2,2- dihydroxymethyls-propyl alcohol and trimethylolethane；The fatty acid phase-change material for example can be one or more in stearic acid, myristic acid, palmitic acid capric acid, laurate, acetic acid, pentadecanoic acid.
The dyestuff can be dyestuff commonly used in the art, can be one or more in iron oxide red, chrome oxide green, chromium titan yellow, peacock blue, peacock green, cobalt ultramarine, cobalt blue, vanadium zirconium Huang and chrome tin pink.
Present invention also offers a kind of colored road surface material prepared such as above-mentioned method.
The colored road surface material of the present invention compared with prior art, has the advantage that：
（1）The present invention slowly releases H by adding glucolactone powder, glucolactone in containing ceramic powder, calcium carbonate and sodium alginate slurry in water+, then small calcium carbonate particles in slurry meet H+Lentamente discharge Ca2+, so as to be indirectly controlled Ca2+With sodium alginate reaction speed, gel is lentamente generated.Due to Ca2+Centered on small calcium carbonate particles lentamente, equably to external diffusion, so that the three-dimensional open-framework that gel-forming is evenly distributed.After gel-forming, unnecessary water release is in pore passage structure, and ceramic powder and dyestuff solidify to form together gel hole wall with sodium alginate.Finally pass through dehydration, solvent displacement again, be dried, cut, sinter and crush, obtain have be evenly distributed, the colored lacuna ceramic particle of the excellent mechanical performances of three-dimensional open-framework, so as to the porosity and mechanical strength of colored lacuna ceramic particle has been significantly increased, the anti-pressure ability and rutting resistance of colored road surface material are further increased.So solve sodium alginate very fast with calcium chloride solution reaction speed, cause gel cross-linkage density to change in gradient and structure inhomogeneity, and then the problem of the colored lacuna ceramic particle of the three-dimensional open-framework with excellent mechanical performances sum cannot be obtained.
The colored lacuna ceramic particle of the present invention has very high porosity, most of phase-change material can not only be adsorbed onto in the lacuna of colored lacuna ceramic particle, and the phase-change material that remains in colored colour lacuna ceramic grain surface is little, this avoid phase-change material to contact with cementitious matter, avoid existing phase-change material and there is stress concentration phenomenon in phase transition process, in turn result in the problem of road surface heavy damage, and can adsorb further amounts of absorption phase-change material, so as to the heat of adsorption of ground surface material unit mass can be improved, effectively reduce the temperature sensitivity of ground surface material, improve the height temperature stability of bituminous paving.
（2）The present invention adsorbs phase-change material using the lacuna of colored lacuna ceramic particle, gather materials so as to be fabricated to colour, the amount of heat for being absorbed in phase transition process using phase-change material or being discharged is adjusting the temperature difference between basic road surface and colorful surface layer, so as to avoid it from producing differently strained because temperature changes, the problem of pavement destruction is in turn resulted in.
（3）The colored road surface material from environmental temperature of the present invention affects little, therefore makes its mechanical property more excellent, and then has expanded the wider adaptability of colorful surface layer material.
Specific embodiment
Technical scheme is described in detail with reference to embodiment, but the invention is not restricted to following examples.Wherein, the wt% being related to is mass fraction.
Embodiment 1-4 ：Prepare cementitious matter
Cementitious matter is prepared according to the material shown in table 1 and composition, correspondence embodiment 1-4 respectively obtains cementitious matter A1, A2, A3, A4.
The cementitious matter of table 1 is constituted and filled a prescription
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| A1 | A2 | A3 | A4 | |
| Epoxy resin model and parts by weight | E-51,100 | E-44,100 | E-42,100 | E-42,100 |
| Curing agent model and parts by weight | YH-82,20 | YH-82,40 | YH-82,50 | YH-82,30 |
| Tougher material and parts by weight | Polypropylene glycol diglycidyl ether, 40 | Phenmethylol, 20 | Polypropylene glycol diglycidyl ether, 10 | Polypropylene glycol diglycidyl ether, 30 |
Embodiment
5
By 10kg alumina powders, 0.75kg Paris whites, 0.1kg dyestuffs（Iron oxide red）Add 20kg water, ball milling 4h, obtain the first slurry, then the first slurry is added in the sodium alginate soln that 200kg concentration is 1.5wt%, stir, form the second slurry that solid concentration is 4.7%, wherein the solid concentration in the second slurry=solid phase powder quality/slurry gross weight, solid phase powder quality=alumina powder quality+Paris white quality+dyestuff quality, slurry gross weight=solid phase powder quality+sodium alginate soln quality.
The glucolactone powder of 2.5kg is added in the second slurry, is then stirred, at 40 DEG C 48 hours are stood, obtain the first gel.Wherein, because the glucolactone powder mouth of a river slowly goes out H+, therefore, do not occur obvious gelatin phenomenon in whipping process, gel has simply just been increasingly generated in quiescing process, so as to ensure that gel is lentamente generated, be conducive to ceramic powder to be all enriched to gel hole wall.
The glucolactone solution that first gel is placed in 0.15wt% is dehydrated, at 25 DEG C keep 24 hours, obtain the second gel, then be placed in ethanol carry out solvent replace 24 hours.The method of solvent displacement：Second gel is put in absolute ethyl alcohol and is soaked 24 hours.
The transposed base substrate of Jing solvents is carried out into freeze-drying（Freeze-drying is carried out in the FD-1A-50 type freeze driers that Beijing Bo Yikang Instrument Ltd. produces, and temperature is -50 DEG C）Dried gel is cut into into fritter, then 300 DEG C are continuously heating to the speed of 20 DEG C/min, maintain 1h, sintering temperature is then heated to, sintering temperature is 1600 DEG C, finally bulk is ground into into graininess, sieve the particle for obtaining that particle diameter is 0.5mm～5.0mm, that is, obtain the colored lacuna ceramic particle B1 of porous.
Embodiment
6
By 10kg zirconia powders, 0.5kg Paris whites, 0.5kg dyestuffs（Chrome oxide green）Add 20kg water, ball milling 4h, obtain the first slurry, then the first slurry is added in the sodium alginate soln that 100kg concentration is 2.5wt%, stir, form the second slurry that solid concentration is 8.4%, wherein the solid concentration in the second slurry=solid phase powder quality/slurry gross weight, solid phase powder quality=zirconia powder quality+Paris white quality+dyestuff quality, slurry gross weight=solid phase powder quality+sodium alginate soln quality.
The glucolactone powder of 2.0kg is added in the second slurry, is stirred, at 50 DEG C 36 hours are stood, obtain the first gel.Wherein, because the glucolactone powder mouth of a river slowly goes out H+, therefore, do not occur obvious gelatin phenomenon in whipping process, gel has simply just been increasingly generated in quiescing process, so as to ensure that gel is lentamente generated, be conducive to ceramic powder to be all enriched to gel hole wall.
The glucolactone solution that first gel is placed in 0.30wt% is dehydrated, at 40 DEG C keep 24 hours, obtain the second gel, then be placed in ethanol carry out solvent replace 24 hours.The method of solvent displacement：Second gel is put in absolute ethyl alcohol and is soaked 24 hours.
The transposed base substrate of Jing solvents is carried out into freeze-drying（Freeze-drying is carried out in the FD-1A-50 type freeze driers that Beijing Bo Yikang Instrument Ltd. produces, and temperature is -50 DEG C）, 350 DEG C are continuously heating to the speed of 25 DEG C/min, maintain 1h, sintering temperature is then heated to, sintering temperature is 1500 DEG C, finally bulk is ground into into graininess, sieve the particle for obtaining that particle diameter is 0.5mm～5.0mm, that is, obtain the colored lacuna ceramic particle B2 of porous.
Embodiment
7
By 10kg alumina powders, 0.30kg Paris whites, 0.05kg dyestuffs（Chromium titan yellow）Add 20kg water, ball milling 4h, obtain the first slurry, then the first slurry is added in the sodium alginate soln that 20kg concentration is 6wt%, stir, form the second slurry that solid concentration is 20.6%, wherein the solid concentration in the second slurry=solid phase powder quality/slurry gross weight, solid phase powder quality=alumina powder quality+Paris white quality+dyestuff quality, slurry gross weight=solid phase powder quality+sodium alginate soln quality.
The glucolactone powder of 1kg is added in the second slurry, is stirred, at 30 DEG C 48 hours are stood, obtain the first gel.Wherein, because the glucolactone powder mouth of a river slowly goes out H+, therefore, do not occur obvious gelatin phenomenon in whipping process, gel has simply just been increasingly generated in quiescing process, so as to ensure that gel is lentamente generated, be conducive to ceramic powder to be all enriched to gel hole wall.
First gel is placed in into 0.05mol/L hydrochloric acid solutions to be dehydrated, at 25 DEG C keep 18 hours, obtain the second gel, then be placed in ethanol carry out solvent replace 36 hours.The method of solvent displacement：Second gel is put in absolute ethyl alcohol and is soaked 36 hours.
The transposed base substrate of Jing solvents is carried out into freeze-drying（Freeze-drying is carried out in the FD-1A-50 type freeze driers that Beijing Bo Yikang Instrument Ltd. produces, and temperature is -50 DEG C）Dried gel is cut into into fritter, then 300 DEG C are continuously heating to the speed of 20 DEG C/min, maintain 1h, sintering temperature is then heated to, sintering temperature is 1600 DEG C, finally bulk is ground into into graininess, sieve the particle for obtaining that particle diameter is 0.5mm～5.0mm, that is, obtain the colored lacuna ceramic particle B3 of porous.
Embodiment
8
By 8kg carborundum powders, 1.3kg feldspar powder, 0.7kg clay powders, 0.60kg Paris whites, 0.1kg dyestuffs add 20kg water, ball milling 4h, obtain the first slurry, then the first slurry is added in the sodium alginate soln that 50kg concentration is 4wt%, stir, form the second slurry that solid concentration is 13.2%, solid concentration in wherein the second slurry=solid phase powder quality/slurry gross weight, solid phase powder quality=carborundum powder quality+stone flour quality+clay powder quality+Paris white quality+dyestuff quality, slurry gross weight=solid phase powder quality+sodium alginate soln quality.
The glucolactone powder of 1.8kg is added in the second slurry, is stirred, at 25 DEG C 48 hours are stood, obtain the first gel.Wherein, because the glucolactone powder mouth of a river slowly goes out H+, therefore, do not occur obvious gelatin phenomenon in whipping process, gel has simply just been increasingly generated in quiescing process, so as to ensure that gel is lentamente generated, be conducive to ceramic powder to be all enriched to gel hole wall.
The glucolactone solution that first gel is placed in 0.4wt% is dehydrated, at 20 DEG C keep 18 hours, obtain the second gel, then be placed in ethanol carry out solvent replace 36 hours.The method of solvent displacement：Second gel is put in absolute ethyl alcohol and is soaked 36 hours.
The transposed base substrate of Jing solvents is carried out into freeze-drying（Freeze-drying is carried out in the FD-1A-50 type freeze driers that Beijing Bo Yikang Instrument Ltd. produces, and temperature is -50 DEG C）Dried gel is cut into into fritter, then 300 DEG C are continuously heating to the speed of 20 DEG C/min, maintain 1h, sintering temperature is then heated to, sintering temperature is 1500 DEG C, finally bulk is ground into into graininess, sieve the particle for obtaining that particle diameter is 0.5mm～5.0mm, that is, obtain the colored lacuna ceramic particle B4 of porous.
Comparative example
1
10kg alumina powders, 0.1kg dyestuffs are added into 20kg water, ball milling 4h, obtain the first slurry, then the first slurry is added in the sodium alginate soln that 200kg concentration is 1.5wt%, stir, form the second slurry that solid concentration is 4.7%, wherein the solid concentration in the second slurry=solid phase powder quality/slurry gross weight, solid phase powder quality=alumina powder quality+dyestuff quality, slurry gross weight=solid phase powder quality+sodium alginate soln quality.
1mol/L calcium chloride solutions are added in the second slurry so that mode is added dropwise, instilling the solution of calcium chloride can generate gelled pill, have sub-fraction alumina powder during this to be enriched on gel hole wall, it is stirred continuously during dropwise addition, 48 hours are stood at 40 DEG C after being added dropwise to complete, the first gel is obtained.
The glucolactone solution that first gel is placed in 0.15wt% is dehydrated, at 25 DEG C keep 24 hours, obtain the second gel, then be placed in ethanol carry out solvent replace 24 hours.The method of solvent displacement：Second gel is put in absolute ethyl alcohol and is soaked 24 hours.
The transposed base substrate of Jing solvents is carried out into freeze-drying（Freeze-drying is carried out in the FD-1A-50 type freeze driers that Beijing Bo Yikang Instrument Ltd. produces, and temperature is -50 DEG C）, then 300 DEG C are continuously heating to the speed of 20 DEG C/min, maintain 1h, sintering temperature is then heated to, sintering temperature is 1600 DEG C, finally bulk is ground into into graininess, sieve the particle for obtaining that particle diameter is 0.5mm～5.0mm, that is, obtain the colored lacuna ceramic particle B5 of porous.
The property of the ceramics of table 2
| Porosity/% | Compression strength/MPa | |
| B1 | 75.3 | 30.5 |
| B2 | 71.5 | 35.4 |
| B3 | 61.4 | 70.6 |
| B4 | 68.5 | 40.7 |
| B5 | 35.2 | 18.4 |
Embodiment
9-12
Prepare colored road surface material
Colored lacuna ceramic particle B1 prepared by Example 5-8, B2, B3 and B4, it is respectively charged in closed container, to container vacuum-pumping and kept for 5～20 minutes again so as to which the lacuna in particle is completely in vacuum state, then sprays into phase-change material into container, and constantly carry out stirring and make all lacunas in its particle full of till phase-change material, so as to be gathered materials.The property of phase-change material, content are shown in Table 3.
Color pavement cementing material A1, A2, A3, A4 prepared by embodiment 1-4 is mixed together respectively with gather materials B1, B2, B3, B4 comprising phase-change material and makes colored road surface material C 1, C2, C3, C4, its mixed proportion is respectively：9/100、10/100、11/100、15/100.Its pavement performance is as shown in table 4.
Comparative example
2
Prepare colored road surface material
Take the colored lacuna ceramic particle B5 prepared by comparative example 1, load in closed container, to container vacuum-pumping and kept for 5～20 minutes again, the lacuna in its particle is set to be completely in vacuum state, then phase-change material is sprayed into into container, and constantly carry out stirring and make all lacunas in its particle full of till phase-change material, the property of phase-change material, the content of middle phase transformation of gathering materials are shown in Table 3.
Prepared color pavement cementing material A1 is mixed together with the B5 that gathers materials and makes colored road surface material C 5, its mixed proportion is respectively：9/100.Its pavement performance is as shown in table 4.
Table 3
| Raw material | Product | Phase-change material | Gather materials the content/wt% of middle phase-change material | Phase transformation temperature pointses/DEG C | |
| Embodiment 9 | A1、B1 | C1 | Paraffin | 30 | 47～52 |
| Embodiment 10 | A2、B2 | C2 | PEG1000 | 24 | 37～41 |
| Embodiment 11 | A3、B3 | C3 | PEG200 | 21 | 20～25 |
| Embodiment 12 | A4、B4 | C4 | Paraffin | 22 | 20～25 |
| Comparative example 2 | A1、B5 | C5 | Paraffin | 10 | 47～52 |
Known by table 2 and 3, the ceramics of the present invention have unusual voidage, and then can adsorb more phase-change materials, so as to improve the heat of adsorption of ground surface material unit mass, the temperature sensitivity of ground surface material is effectively reduced, the height temperature stability of bituminous paving is improved.
The colored road surface material pavement performance of table 4 is evaluated
| Marshall stability/KN | Bending resistance stretching strain/μ ε | Steady time/mm of rut | Construction temperature/DEG C | |
| C1 | ＞ 50 | ＞ 2500 | ＞ 10000 | - 5～30 |
| C2 | ＞ 50 | ＞ 2500 | ＞ 10000 | - 5～30 |
| C3 | ＞ 50 | ＞ 2500 | ＞ 10000 | - 5～30 |
| C4 | ＞ 50 | ＞ 2500 | ＞ 10000 | - 5～30 |
| C5 | ＞ 50 | 2000～2300 | 5000～6000 | - 5～30 |
From table 2 and 4, the ceramics of the present invention have very high compression strength, and then cause colored road surface material to have unusual good bending resistance stretching strain and rutting resistance.
Claims (18)
1. a kind of preparation method of colored road surface material, it is characterised in that the method includes：Be mixed and made into colored road surface material with cementitious matter by gathering materials, wherein, it is described gather materials by colored lacuna ceramic particle by vacuum suction method adsorb phase-change material be obtained, the preparation method of the colored lacuna ceramic particle comprises the steps：
（1）Ceramic powder, Paris white, dyestuff are added into water beating, the first slurry is obtained；
（2）Sodium alginate soln is added in first slurry, is well mixed, obtain the second slurry that solid concentration is 2wt%～30wt%；
（3）Glucolactone powder is added in second slurry, is stirred, stood, generate the first gel；
（4）First gel is dehydrated under sour environment, obtains the second gel；
（5）Second gel carries out solvent displacement, obtains the 3rd gel；
（6）3rd gel is dried, cuts, is sintered and is crushed, colored lacuna ceramic particle is obtained.
2. method according to claim 1, it is characterised in that：In second slurry, the concentration of the sodium alginate is 0.5wt%～5.0wt%, preferably 1wt%～3wt%；The part by weight of the sodium alginate, Paris white and glucolactone powder is（3～7）：1：（1.5～5.5）.
3. method according to claim 1 and 2, it is characterised in that：The ceramic powder is 1 with the part by weight of dyestuff：（0.001～0.1）.
4. method according to claim 1, it is characterised in that：In step（3）In, the time of the standing is 1h～48h, and temperature is 20 DEG C～60 DEG C.
5. method according to claim 1, it is characterised in that：In step（4）In, what first gel was dehydrated under sour environment concretely comprises the following steps：By first soak in glucolactone solution, the time of the immersion is 6h～48h, and the concentration of the glucolactone solution is 0.5wt%～5.0wt%, preferably 1wt%～4wt%.
6. method according to claim 1, it is characterised in that：In step（4）In, what first gel was dehydrated under sour environment concretely comprises the following steps：By in the first soak inorganic acid solution, the inorganic acid solution is salpeter solution and/or hydrochloric acid solution, and the time of the immersion is 6h～48h, and the concentration of the inorganic acid solution is 0.01mol/L～0.10mol/L.
7. method according to claim 1, it is characterised in that：In step（5）In, second gel carries out concretely comprising the following steps for solvent displacement：By the second soak in a solvent, soak time is 6h～48h, and soaking temperature is 20 DEG C～50 DEG C.
8. the method according to claim 1 or 7, it is characterised in that：Solvent displacement solvent used is one or more in ethanol, acetone and the tert-butyl alcohol.
9. method according to claim 1, it is characterised in that：In step（6）In, the drying is freeze-drying or drying at room temperature；The method of the sintering includes：250～500 DEG C are continuously heating to the speed of 5 DEG C/min～30 DEG C/min, 1h～3h is maintained, sintering temperature is then heated to, sintering temperature is 1200 DEG C～1600 DEG C.
10. method according to claim 1, it is characterised in that：The porosity of the colored lacuna ceramic particle is 60%～80%, and compression strength is 20MPa～80MPa.
11. methods according to claim 1, it is characterised in that：The weight ratio for adsorbing phase-change material amount and the colored lacuna ceramic particle（1～5）：10.
12. methods according to claim 1, it is characterised in that：The cementitious matter is with the part by weight for gathering materials（5～20）：100.
13. methods according to claim 1 or 12, it is characterised in that：The cementitious matter includes epoxy curing agent and toughener, and the part by weight of the epoxy resin, curing agent and toughener is 100：（10～50）：（10～50）.
14. methods according to claim 1, it is characterised in that：The colored lacuna ceramic particle adsorbs concretely comprising the following steps for phase-change material using vacuum suction method：Lacuna ceramic particle is loaded in closed container, to container vacuum-pumping and keep 10min～30min again, make the lacuna in its particle be completely in vacuum state, phase-change material is then added into container and is constantly stirred, till making all lacunas that phase-change material is entered in particle.
15. methods according to claim 1, it is characterised in that：The particle diameter of the colored lacuna ceramic particle is 0.5mm～5.0mm.
16. methods according to claim 1, it is characterised in that：The phase-change material is one or more in paraffin class phase-change material, polyalcohols phase-change material, fatty acid phase-change material.
17. methods according to claim 1, it is characterised in that：The ceramic powder is one or more in cordierite, clay, talcum, zircon, zirconium oxide, spinelle, aluminum oxide, silicate, aluminate, lithium aluminosilicate, feldspar, titanium dioxide, carborundum and silicon nitride.
Colored road surface material prepared by a kind of 18. methods as described in any one in claim 1-17.
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