CN106396561A - Micro-surfacing mixture with snow-melting function and preparation method of micro-surfacing mixture - Google Patents
Micro-surfacing mixture with snow-melting function and preparation method of micro-surfacing mixture Download PDFInfo
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- CN106396561A CN106396561A CN201610873831.9A CN201610873831A CN106396561A CN 106396561 A CN106396561 A CN 106396561A CN 201610873831 A CN201610873831 A CN 201610873831A CN 106396561 A CN106396561 A CN 106396561A
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/04—Carboxylic acids; Salts, anhydrides or esters thereof
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a micro-surfacing mixture with the snow-melting function. The micro-surfacing mixture is prepared from, by weight, 73.5-74.5 parts of aggregates, 8-9 parts of SBR (styrene butadiene rubber) modified emulsified asphalt, 4-5 parts of mineral powder, 7-9 parts of water, 1.2-1.8 parts of cement, 1-4 parts of microencapsulated phase change materials and 1-4 parts of an acetic acid type snow-melting agent, and the aggregate grading type of the micro-surfacing mixture is MS-3 type. The invention further provides a method for preparing the micro-surfacing mixture with the snow-melting function. By the arrangement, deicing or snow-melting function can be achieved on snow-ice covered roadway, active snow-melting function of the roadway is achieved, the deicing and snow-melting problem in winter can be effectively solved, simpleness in preparation is achieved, and wide actual application value is realized.
Description
Technical field
The invention belongs to pavement of road technical field and in particular to a kind of micro-surfacing mixture with snow melting function and its
Preparation method.
Background technology
The existing asphalt concrete pavement of China and cement concrete pavement, after driving a vehicle for many years, have quite a few road surface
Although structure bulk strength is intact, occur in that kinds of surface feature disease.For the maintenance of this part pavement structure,
From affecting with the angle economizing on resources it is only necessary to recover to its function of surface of minimizing road pavement absolute altitude, and adopt micro-
At table, maintenance technology is ideal scheme, and in preventive maintenance or newly-built road, micro-surface area also can be used as table
Face wearing course plays a role, and therefore micro-surfacing mixture has been widely used in road surface preventive maintenance.
In the winter time, road surface freezes because of accumulated snow, will affect the coast is clear and traffic safety.Due to ice, snowy day gas, road surface
Adhesive force reduces quickly it is desirable to vehicle has good dynamic property and security.Ice and snow road can lead to direction out of control, brake to lose
Spirit, frequent accidents occur, and in recent years, the traffic accident that ice and snow causes continuously goes up.
Seeking methods and techniques from road itself is the fundamental way solving pavement snow melting, and road surface ice-melt snow method and technology can
To be divided into two aspects, first from the angle of highway layout, the materials such as steel material, wire, heating cable, equipment are drawn
Enter road surface, the principle heating by electricity is so that the ground surface material of high-insulativity has heat and electric perception and transfer capability, by electricity
Power is converted into heat energy, has reached the purpose of deicing or snow melting, such method snow melt efficiency high, but high cost, operation easier is big；Another
Aspect, from pavement material, salts substances is added in compound, rolls under effect in capillary pressure and vehicle, road
The internal salinity in face gradually separates out, thus reducing the freezing point of road surface water, postponing road surface accumulated snow and freezing, by changing road surface
Physical property, reaches the purpose of snow melt.This method less stable, salts substances are run off by rainwash easily in a large number.
The non-arterial highway of urban road relies primarily at present and manually to shovel snow, to open ice, but be as the increase of automobile pollution, with
Highway, tunnel, the increase of bridge, only manually remove the snow and have been difficult to meet the travel requirement of people, and ice-melt snow gradually becomes
To in mechanization, automation, embody safely, quickly, the technical characterstic such as environmental protection.
At this stage, phase-change material is widely used in building trade, and microencapsulated phase change material is added with acetate type Snow Agent
Enter in micro-surfacing mixture, solve the problems, such as the accumulated snow on winter road surface from material in itself, when road surface is because of snowfall temperature decrease,
Phase-change material can discharge heat, and acetate type snow melt in addition salts out, and can effectively remove the accumulated snow on road surface.
Content of the invention
The technical problem to be solved is for above-mentioned the deficiencies in the prior art, provides one kind to have snow melt work(
The micro-surfacing mixture of energy.In this compound, the additives such as microencapsulated phase change material, acetate type Snow Agent are had by admixture, can
Reach the purpose of deicing or snow melting, also can improve cohesive strength, abrasion resisting performance and the anti-water damage energy of micro-surfacing mixture simultaneously
Power.
For solving above-mentioned technical problem, the technical solution used in the present invention is：A kind of micro-surface area with snow melting function mixes
Close material it is characterised in that being made up of the raw material of following weight portion：Gather materials 73.5～74.5 parts, SBR modified emulsifying asphalt 8～9
Part, 4～5 parts of breeze, 7～9 parts of water, 1.2～1.8 parts of cement, 1～4 part of microencapsulated phase change material, acetate type Snow Agent 1～4
Part, the gradation types of the described micro-surfacing mixture with snow melting function are MS-3 type.
A kind of above-mentioned micro-surfacing mixture with snow melting function is it is characterised in that raw material system by following weight portion
Become：Gather materials 74.5 parts, 8 parts of SBR modified emulsifying asphalt, 5 parts of breeze, 7 parts of water, 1.5 parts of cement, 2 parts of microencapsulated phase change material, vinegar
2 parts of acids Snow Agent.
A kind of above-mentioned micro-surfacing mixture with snow melting function is it is characterised in that raw material system by following weight portion
Become：Gather materials 73.8 parts, 8 parts of SBR modified emulsifying asphalt, 5 parts of breeze, 8 parts of water, 1.2 parts of cement, 1 part of microencapsulated phase change material, vinegar
3 parts of acids Snow Agent.
A kind of above-mentioned micro-surfacing mixture with snow melting function is it is characterised in that raw material system by following weight portion
Become：Gather materials 73.5 parts, 8 parts of SBR modified emulsifying asphalt, 5 parts of breeze, 8 parts of water, 1.5 parts of cement, 3 parts of microencapsulated phase change material, vinegar
1 part of acids Snow Agent.
A kind of above-mentioned micro-surfacing mixture with snow melting function is it is characterised in that described microencapsulated phase change material is adopted
It is prepared from in-situ compositing, concrete preparation process is：By heating paraffin to melting completely, obtain the fused solution of paraffin, so
Afterwards zinc oxide, atlapulgite and hydroscopic high-molecular resin are added stirring 10min in the fused solution of paraffin to be premixed, obtain pre-
Melamine formaldehyde resin is added in premix by batch mixing afterwards, obtains microencapsulated phase change material after stirring 5min；Described stone
The mass ratio of wax, zinc oxide, atlapulgite, hydroscopic high-molecular resin and melamine formaldehyde resin is 70: 8: 7: 5: 10.
A kind of above-mentioned micro-surfacing mixture with snow melting function is it is characterised in that described microencapsulated phase change material
Particle diameter is 0.1 μm～10 μm.
A kind of above-mentioned micro-surfacing mixture with snow melting function is it is characterised in that described acetate type Snow Agent is calcium
Magnesium acetate.
A kind of above-mentioned micro-surfacing mixture with snow melting function it is characterised in that described SBR modified emulsifying asphalt by
Matrix pitch, modifying agent, emulsifying agent and water (60～65) in mass ratio: (3～6): (1～3): (20～30) mix and
Become, described modifying agent is SBR latex, described emulsifying agent is cationic asphalt emulsifier.
In addition, present invention also offers a kind of method preparing the above-mentioned micro-surfacing mixture with snow melting function, it is special
Levy and be, the method comprises the following steps：
Step one, by microencapsulated phase change material and acetate type Snow Agent mix and blend 5min～8min, obtain mix snow melt
Agent；
Step 2, by described in step one mixing Snow Agent be added in SBR modified pitch, be 50r/ in stir speed (S.S.)
Stir 60s～120s under conditions of min～80r/min, obtain snow melt modified emulsifying asphalt；
Step 3, will gather materials, breeze and cement stir under conditions of stir speed (S.S.) is for 50r/min～80r/min 5s～
15s, then add water continuation stirring 8～15s, snow melt modified emulsifying asphalt continuation stirring 8s described in addition step 2 afterwards～
15s, obtains the micro-surfacing mixture with snow melting function.
The level that the present invention has the micro-surfacing mixture of snow melting function is joined and is met JTG/T F40-02-2005《Micro-surface area and
Slurry Seal Technology guide》Middle MS-3 type level joins requirement.The micro-surfacing mixture that the present invention has snow melting function is applied to：At a high speed
Highway, the preventive maintenance cover of I and II highway and the rut reparation of bituminous paving；Newly-built or reorganization and expansion highway, one
The surface abrasion layer on Class II highway road surface.
The present invention compared with prior art has advantages below：
1st, it is mixed with microencapsulated phase change material and acetate type Snow Agent, wherein, micro- glue in the micro-surfacing mixture of the present invention
Capsule phase-change material is that microcapsules technology is applied to the NEW TYPE OF COMPOSITE phase-change material that composite phase-change material is prepared.In micro- glue
The material undergoing phase transition in capsule phase-change material is closed in ball-type capsule, thus can the leakage of effectively solving phase-change material, phase
The problems such as separation and corrosivity, be conducive to improving the application performance of phase-change material, the energy of certain forms can be higher than by it
Store during its phase transition temperature, and discharge the energy storage material being used when less than its phase transition temperature, in micro-surface area
Energy can be put aside by high temperature in compound, when road surface snowfall freezes, release heat is to reach the effect of deicing or snow melting；Acetate type
Snow Agent is a kind of conventional road surface ice-melt snow agent, adds it in micro-surfacing mixture, grinds in capillary pressure and vehicle
Under pressure effect, the internal salinity of micro-surfacing mixture gradually separates out, thus reducing the freezing point of road surface water, postpones link table area
Snow freezes, and by changing road surface physical property, reaches the purpose of snow melt.Therefore by microencapsulated phase change material and acetate type Snow Agent
Be incorporated in micro-surfacing mixture, by significantly improve micro-surfacing mixture from ice-melt avenge performance.
2nd, the present invention passes through to fill appropriate microencapsulated phase change material and acetate type Snow Agent, micro- table in micro-surfacing mixture
The 30min cohesive strength of place's compound and 60min cohesive strength have all been lifted, and thus also indicate that incorporation microencapsulated phase change material and vinegar
Acids Snow Agent also can improve the adhesive aggregation performance of micro-surfacing mixture.
3rd, the present invention has the preparation process is simple of the micro-surfacing mixture of snow melting function it is not necessary to special installation can be complete
Become, and be stirred at ambient temperature, you can obtain the micro-surfacing mixture with snow melting function.
With reference to embodiment, the present invention is described in further detail.
Specific embodiment
Embodiment 1
The micro-surfacing mixture that the present embodiment has snow melting function is made up of the raw material of following weight portion：Gather materials 74.5 parts,
8 parts of SBR modified emulsifying asphalt, 5 parts of breeze, 7 parts of water, 1.5 parts of cement, 2 parts of microencapsulated phase change material, 2 parts of acetate type Snow Agent；
Described nominal maximum particle diameter of gathering materials is not more than 9.5mm, and the particle diameter of described breeze is less than 0.075mm, and the present embodiment has snow melt work(
The gradation types of the micro-surfacing mixture of energy are MS-3 type, and concrete gradation composition is shown in Table 1；
The MS-3 type gradation design of table 1 micro-surfacing mixture
In the present embodiment, the weight portion of each component of microencapsulated phase change material is 70 parts of paraffin, 8 parts of zinc oxide (thermal conducting agent),
7 parts of atlapulgite (anti-cryogen excessively), 5 parts of hydroscopic high-molecular resin (anti-phase separation agent), 10 parts of melamine formaldehyde resin, micro-
The concrete preparation method of capsule phase change material is：Using in-situ compositing preparation, first take 70 parts of heating paraffin to melting completely,
Again 8 parts of zinc oxide, 7 parts of atlapulgites and 5 parts of hydroscopic high-molecular resins are poured into stirring 10min in the fused solution of paraffin carry out pre-
Mixed, add 10 parts of melamine formaldehyde resins after fused solution is uniform, continue stirring 5min to after mix, you can obtain
Microencapsulated phase change material；SBR modified emulsifying asphalt is preferably by matrix pitch, SBR latex modifying agent, cationic asphalt emulsifier
It is uniformly mixed with water in mass ratio 60: 5: 3: 32；Wherein, matrix pitch adopts SK-70# pitch, and virtue selected by emulsifying agent
Type is coagulated in splitting slowly of real big gram of model MQK-1D of dimension soon；Modifying agent selects the SBR latex that virtue Wei Shiweike company produces, cement
Using 32.5# Portland cement.
The preparation method that the present embodiment has the micro-surfacing mixture of snow melting function comprises the following steps：
Step one, microencapsulated phase change material is stirred 5min together with acetate type Snow Agent, mix and obtain mixing and melt
Snow agent；
Step 2, by described in step one mixing Snow Agent be added in SBR modified pitch, be 50r/ in stir speed (S.S.)
Stir 90s under conditions of min, prepare snow melt modified emulsifying asphalt；
Step 3, will gather materials, breeze, cement stir 8s under conditions of stir speed (S.S.) is for 60r/min, add water stirring
10s, is eventually adding snow melt modified emulsifying asphalt described in step 2 and continues stirring 12s, obtain the micro-surface area with snow melting function
Compound.
Embodiment 2
The micro-surfacing mixture that the present embodiment has snow melting function is made up of the raw material of following weight portion：Gather materials 73.8 parts,
8 parts of SBR modified emulsifying asphalt, 5 parts of breeze, 8 parts of water, 1.2 parts of cement, 1 part of microencapsulated phase change material, 3 parts of acetate type Snow Agent；
Described nominal maximum particle diameter of gathering materials is not more than 9.5mm, and the particle diameter of described breeze is less than 0.075mm, and the present embodiment has snow melt work(
The gradation types of the micro-surfacing mixture of energy are MS-3 type, and concrete gradation composition is shown in Table 1；
In the present embodiment, the weight portion of each component of microencapsulated phase change material is 70 parts of paraffin, 8 parts of zinc oxide (thermal conducting agent),
7 parts of atlapulgite (anti-cryogen excessively), 5 parts of hydroscopic high-molecular resin (anti-phase separation agent), 10 parts of melamine formaldehyde resin, micro-
The preparation method of capsule phase change material is using in-situ compositing preparation, first takes 70 parts of heating paraffin to melting completely, then by 8
Part zinc oxide, 7 parts of atlapulgites and 5 parts of hydroscopic high-molecular resins are poured stirring 10min in paraffin fused solution into and are premixed, fusion
Melt liquid and uniformly add 10 parts of melamine formaldehyde resins afterwards, continue stirring 5min to after mix, you can obtain microcapsules phase
Become material；SBR modified emulsifying asphalt preferably presses matter by matrix pitch, SBR latex modifying agent, cationic asphalt emulsifier and water
Amount compares 60: 5: 3: 32 and is uniformly mixed；Wherein, matrix pitch adopts SK-70# pitch, and real big gram of virtue dimension selected by emulsifying agent
Type is coagulated in splitting slowly of model MQK-1D soon；The SBR latex that virtue Wei Shiweike company produces selected by modifying agent, and cement adopts
32.5# Portland cement.
The preparation method that the present embodiment has the micro-surfacing mixture of snow melting function comprises the following steps：
Step one, microencapsulated phase change material is stirred 6min together with acetate type Snow Agent, mix and obtain mixing and melt
Snow agent；
Step 2, by described in step one mixing Snow Agent be added in SBR modified pitch, be 60r/ in stir speed (S.S.)
Stir 100s under conditions of min, prepare snow melt modified emulsifying asphalt；
Step 3, will gather materials, breeze, cement stir 8s under conditions of stir speed (S.S.) is for 65r/min, add water stirring
12s, is eventually adding snow melt modified emulsifying asphalt described in step 2 and continues stirring 10s, obtain the micro-surface area with snow melting function
Compound.
Embodiment 3
The micro-surfacing mixture that the present embodiment has snow melting function is made up of the raw material of following weight portion and is gathered materials 73.5 parts,
8 parts of SBR modified emulsifying asphalt, 5 parts of breeze, 8 parts of water, 1.5 parts of cement, 3 parts of microencapsulated phase change material, 1 part of acetate type Snow Agent；
Described nominal maximum particle diameter of gathering materials is not more than 9.5mm, and the particle diameter of described breeze is less than 0.075mm, and the present embodiment has snow melt work(
The gradation types of the micro-surfacing mixture of energy are MS-3 type, and concrete gradation composition is shown in Table 1；
In the present embodiment, the weight portion of each component of microencapsulated phase change material is 70 parts of paraffin, 8 parts of zinc oxide (thermal conducting agent),
7 parts of atlapulgite (anti-cryogen excessively), 5 parts of hydroscopic high-molecular resin (anti-phase separation agent), 10 parts of melamine formaldehyde resin, micro-
The preparation method of capsule phase change material is：Using in-situ compositing preparation, first take 70 parts of heating paraffin to melting completely, then will
8 parts of zinc oxide, 7 parts of atlapulgites and 5 parts of hydroscopic high-molecular resins are poured stirring 10min in paraffin fused solution into and are premixed, and treat
Fused solution uniformly adds 10 parts of melamine formaldehyde resins afterwards, continues stirring 5min to after mix, you can obtain microcapsules
Phase-change material；SBR modified emulsifying asphalt is preferably pressed by matrix pitch, SBR latex modifying agent, cationic asphalt emulsifier and water
Mass ratio 60: 5: 3: 32 is uniformly mixed；Wherein, matrix pitch adopts SK-70# pitch, and emulsifying agent selects virtue dimension real big
Type is coagulated in splitting slowly of gram model MQK-1D soon；The SBR latex that virtue Wei Shiweike company produces selected by modifying agent, and cement adopts
32.5# Portland cement.
The preparation method that the present embodiment has the micro-surfacing mixture of snow melting function comprises the following steps：
Step one, microencapsulated phase change material is stirred 5min together with acetate type Snow Agent, mix and obtain mixing and melt
Snow agent；
Step 2, by described in step one mixing Snow Agent be added in SBR modified pitch, be 60r/ in stir speed (S.S.)
Stir 120s under conditions of min, prepare snow melt modified emulsifying asphalt；
Step 3, will gather materials, breeze, cement stir 10s under conditions of stir speed (S.S.) is for 60r/min, add water and stir
Mix 8s, be eventually adding snow melt modified emulsifying asphalt described in step 2 and continue stirring 12s, obtain the micro-surface area with snow melting function
Compound.
Embodiment 4
The micro-surfacing mixture that the present embodiment has snow melting function is made up of the raw material of following weight portion and is gathered materials 73.6 parts,
9 parts of SBR modified emulsifying asphalt, 4 parts of breeze, 7 parts of water, 1.4 parts of cement, 4 parts of microencapsulated phase change material, 1 part of acetate type Snow Agent；
Described nominal maximum particle diameter of gathering materials is not more than 9.5mm, and the particle diameter of described breeze is less than 0.075mm, and the present embodiment has snow melt work(
The gradation types of the micro-surfacing mixture of energy are MS-3 type, and concrete gradation composition is shown in Table 1；
In the present embodiment, the weight portion of each component of microencapsulated phase change material is 70 parts of paraffin, 8 parts of zinc oxide (thermal conducting agent),
7 parts of atlapulgite (anti-cryogen excessively), 5 parts of hydroscopic high-molecular resin (anti-phase separation agent), 10 parts of melamine formaldehyde resin, micro-
The preparation method of capsule phase change material is：Using in-situ compositing preparation, first take 70 parts of heating paraffin to melting completely, then will
8 parts of zinc oxide, 7 parts of atlapulgites and 5 parts of hydroscopic high-molecular resins are poured stirring 10min in paraffin fused solution into and are premixed, and treat
Fused solution uniformly adds 10 parts of melamine formaldehyde resins afterwards, continues stirring 5min to after mix, you can obtain microcapsules
Phase-change material；SBR modified emulsifying asphalt is preferably pressed by matrix pitch, SBR latex modifying agent, cationic asphalt emulsifier and water
Mass ratio 60: 5: 3: 32 is uniformly mixed；Wherein, matrix pitch adopts SK-70# pitch, and emulsifying agent selects virtue dimension real big
Type is coagulated in splitting slowly of gram model MQK-1D soon；The SBR latex that virtue Wei Shiweike company produces selected by modifying agent, and cement adopts
32.5# Portland cement.
The preparation method that the present embodiment has the micro-surfacing mixture of snow melting function comprises the following steps：
Step one, microencapsulated phase change material is stirred 5min together with acetate type Snow Agent, mix and obtain mixing and melt
Snow agent；
Step 2, by described in step one mixing Snow Agent be added in SBR modified pitch, be 60r/ in stir speed (S.S.)
Stir 120s under conditions of min, prepare snow melt modified emulsifying asphalt；
Step 3, will gather materials, breeze, cement stir 10s under conditions of stir speed (S.S.) is for 60r/min, add water and stir
Mix 8s, be eventually adding snow melt modified emulsifying asphalt described in step 2 and continue stirring 12s, obtain the micro-surface area with snow melting function
Compound.
Embodiment 5
The micro-surfacing mixture that the present embodiment has snow melting function is made up of the raw material of following weight portion and is gathered materials 74.4 parts,
8 parts of SBR modified emulsifying asphalt, 4 parts of breeze, 7 parts of water, 1.6 parts of cement, 1 part of microencapsulated phase change material, 4 parts of acetate type Snow Agent；
Described nominal maximum particle diameter of gathering materials is not more than 9.5mm, and the particle diameter of described breeze is less than 0.075mm, and the present embodiment has snow melt work(
The gradation types of the micro-surfacing mixture of energy are MS-3 type, and concrete gradation composition is shown in Table 1；
In the present embodiment, the weight portion of each component of microencapsulated phase change material is 70 parts of paraffin, 8 parts of zinc oxide (thermal conducting agent),
7 parts of atlapulgite (anti-cryogen excessively), 5 parts of hydroscopic high-molecular resin (anti-phase separation agent), 10 parts of melamine formaldehyde resin, micro-
The preparation method of capsule phase change material is：Using in-situ compositing preparation, first take 70 parts of heating paraffin to melting completely, then will
8 parts of zinc oxide, 7 parts of atlapulgites and 5 parts of hydroscopic high-molecular resins are poured stirring 10min in paraffin fused solution into and are premixed, and treat
Fused solution uniformly adds 10 parts of melamine formaldehyde resins afterwards, continues stirring 5min to after mix, you can obtain microcapsules
Phase-change material；SBR modified emulsifying asphalt is preferably pressed by matrix pitch, SBR latex modifying agent, cationic asphalt emulsifier and water
Mass ratio 60: 5: 3: 32 is uniformly mixed；Wherein, matrix pitch adopts SK-70# pitch, and emulsifying agent selects virtue dimension real big
Type is coagulated in splitting slowly of gram model MQK-1D soon；The SBR latex that virtue Wei Shiweike company produces selected by modifying agent, and cement adopts
32.5# Portland cement.
The preparation method that the present embodiment has the micro-surfacing mixture of snow melting function comprises the following steps：
Step one, microencapsulated phase change material is stirred 5min together with acetate type Snow Agent, mix and obtain mixing and melt
Snow agent；
Step 2, by described in step one mixing Snow Agent be added in SBR modified pitch, be 60r/ in stir speed (S.S.)
Stir 120s under conditions of min, prepare snow melt modified emulsifying asphalt；
Step 3, will gather materials, breeze, cement stir 10s under conditions of stir speed (S.S.) is for 60r/min, add water and stir
Mix 8s, be eventually adding snow melt modified emulsifying asphalt described in step 2 and continue stirring 12s, obtain the micro-surface area with snow melting function
Compound.
Comparative example 1
The micro-surfacing mixture that this comparative example has snow melting function is made up of the raw material of following weight portion and is gathered materials 74.5 parts,
8 parts of SBR modified emulsifying asphalt, 4 parts of breeze, 8 parts of water, 1.5 parts of cement, 4 parts of acetate type Snow Agent；The described nominal maximum grain that gathers materials
Footpath is not more than 9.5mm, and the particle diameter of described breeze is less than 0.075mm, and the present embodiment has the micro-surfacing mixture of snow melting function
Gradation types are MS-3 type, and concrete gradation composition is shown in Table 1；The preparation method of this comparative example micro-surfacing mixture and embodiment 1 phase
With.
Comparative example 2
The micro-surfacing mixture that this comparative example has snow melting function is made up of the raw material of following weight portion and is gathered materials 73.8 parts,
8 parts of SBR modified emulsifying asphalt, 4 parts of breeze, 8 parts of water, 1.2 parts of cement, 4 parts of microencapsulated phase change material；Described nominal of gathering materials is maximum
Particle diameter is not more than 9.5mm, and the particle diameter of described breeze is less than 0.075mm, and the present embodiment has the micro-surfacing mixture of snow melting function
Gradation types be MS-3 type, concrete gradation composition is shown in Table 1；The preparation method of this comparative example micro-surfacing mixture and embodiment 1
Identical.
Comparative example 3
The micro-surfacing mixture that this comparative example has snow melting function is made up of the raw material of following weight portion and is gathered materials 77.2 parts,
9 parts of SBR modified emulsifying asphalt, 4 parts of breeze, 9 parts of water, 1.8 parts of cement；Described nominal maximum particle diameter of gathering materials is not more than 9.5mm, institute
The particle diameter stating breeze is less than 0.075mm, and the gradation types that the present embodiment has the micro-surfacing mixture of snow melting function are MS-3 type,
Concrete gradation composition is shown in Table 1；The preparation method of this comparative example micro-surfacing mixture is same as Example 1.
Embodiment of the present invention 1-3 and the performance test of comparative example 1-3 micro-surfacing mixture：
According to《Highway engineering pitch and Asphalt Mixture Experiment code JTG E20-2011》, to embodiment 1-3, comparative example
Micro-surfacing mixture in 1-3 carries out correlated performance test, and test process is as follows：
(1) cohesive strength test
Using Cohesion torque test instrument to embodiment 1-3, comparative example 1-3 preparation micro-surfacing mixture carry out adhesive aggregation performance
Test, the relatively cohesive strength of different micro-surfacing mixtures, test result is as shown in table 2.
The cohesive strength test result of table 2 micro-surfacing mixture
As shown in Table 2, the 30min cohesive strength of the micro-surfacing mixture of embodiment 1-3 preparation meets《Micro-surface area and thin pulp envelope
Layer technical manual》Specified in requirement not less than 1.2N m, 30min cohesive strength also meets the requirement not less than 2.0N m.
It can also be seen that compared to comparative example 1-3, the cohesive strength of embodiment 1-3 all slightly improves from table, this shows to add microcapsules
After phase-change material and Snow Agent, the adhesive aggregation performance of micro-surfacing mixture makes moderate progress.
(2) antiskid performance test
Sand method the entering of micro-surfacing mixture to embodiment 1-3, comparative example 1-3 preparation using pendulum type friction instrument with manually
Row antiskid performance test, relatively the antiskid performance of different micro-surfacing mixtures, test result is as shown in table 3.
The antiskid the performance test results of table 3 micro-surfacing mixture
As shown in Table 3, the antiskid pendulum value of the micro-surfacing mixture of embodiment 1-3 preparation meets《Micro-surface area and slurry seal
Technical manual》Specified in requirement not less than 45, construction depth also meets the requirement not less than 0.60mm.Can also from table
Find out, compared to comparative example 1-3, pendulum value and the construction depth of embodiment 1-3 are not changed in substantially, and this is mainly due to phase transformation material
Material and Snow Agent Main Function are snow melt, skid resistance can be affected less, therefore add microencapsulated phase change material and Snow Agent
Afterwards, the antiskid performance of micro-surfacing mixture is not obviously improved.
(3) anti-wear performance test
Characterize the wearability of embodiment 1-3, the micro-surfacing mixture of comparative example 1-3 preparation with wet wheel consumption mill value (1h/6d)
Can, wet wheel wearing valve (1h/6d) is bigger, and the anti-wear performance of micro-surfacing mixture is poorer, otherwise then better.Test result such as table 4
Shown.
The anti-wear performance test result of table 4 micro-surfacing mixture
As shown in Table 4, the wet wheel wearing valve (1h/6d) of the micro-surfacing mixture of embodiment 1-3 preparation is all less, meets
《Micro-surface area and Slurry Seal Technology guide》Specified in 1h wet wheel consumption mill value be less than 540g/cm2, 6d wet wheel consumption mill value be less than
800g/cm2Requirement, data from table is it can also be seen that increase with microencapsulated phase change material volume, micro-surfacing mixture
Wet wheel wearing valve increased in various degree, illustrate its be added with beneficial to improve micro-surfacing mixture anti-wear performance.
(4) loading wheel scab experimental test
Using loading wheel glue husky test to embodiment 1-3, the micro-surfacing mixture of comparative example 1-3 preparation carry out scab
Can test, relatively the scab amount of different micro-surfacing mixtures, test result is as shown in table 5.
The loading wheel scab result of the test of table 5 micro-surfacing mixture
As shown in Table 5, the adhesion sand amount of the micro-surfacing mixture of embodiment 1-3 preparation meets《Micro-surface area and slurry seal
Technical manual》Specified in be not less than 450g/m3Requirement.It can also be seen that compared to comparative example 1-3, embodiment from table
The adhesion sand amount of 1-3 reduces 5% about, and this reduces after showing to add microencapsulated phase change material and Snow Agent to a certain extent
The scab amount of micro-surfacing mixture.
(5) ice-melt snow performance test
According to specification JTG F40-2004 hot-mix asphalt mixture mixing proportion design method, it is molded the rut of 4cmAC-13
Plate, then the micro-surface area mixing with snow melting function described in thick embodiment 1-3 of paving 1cm and comparative example 1-3 is spread on its surface
Material, obtains the compound test specimen that performance is avenged in 6 kinds of test ice-melts.
Described AC-13 type bituminous concrete adopts limestone, and pitch adopts SBS modified pitch, and bitumen aggregate ratio is 5.1%,
Wherein AC-13 formate gradation composition is as shown in table 6.
Table 6AC-13 formate gradation composition
Performance test methods are avenged in ice-melt：To make 6 kinds mixing flitch be placed on 48h under room temperature, pull down respectively mould and by its
Put in -10 DEG C of refrigerator, putting one piece of quality on the top of compound test specimen is maIce cube, every 20min, 40min, 60min
Weigh quality m of remaining ice cubeb, you can obtain the ice storage of different micro-surfacing mixtures, result of the test is as shown in table 7.
The preparation method of described ice cube：2/3 volume is contained first in the plastic casing of a size of 25cm × 25cm × 1cm
Pure water, is placed on freezing in -18 DEG C of refrigerator, takes out after water freezes completely.
The ice storage of table 7 micro-surfacing mixture
As shown in Table 7, the ice storage of the micro-surfacing mixture of embodiment 1 to 3 preparation is compared with right without any modifying agent
Ratio 3 has been respectively increased twenties times, and after 1h, the ice cube of intimate half is melted away, and common micro-surfacing mixture (comparative example 3)
The ice cube of surface of test piece is not changed in substantially.And the ice-melt effect from comparative example 1 and comparative example 2, fills microcapsules phase
The ice storage becoming the micro-surfacing mixture of material improves than the ice storage of the micro-surfacing mixture filling acetate type Snow Agent
37.9%, so microencapsulated phase change material is effect improved more notable to the ice-melt of micro-surfacing mixture, and micro- compared to only filling
The micro-surfacing mixture of capsule phase change material, adds micro-surface area mixing with acetate type Snow Agent after microencapsulated phase change material is mixed
After in material, its ice storage is in a slight decrease, but declines also inconspicuous, and its ice-melt performance is also more prominent.Therefore, the present invention passes through
Fill microencapsulated phase change material and acetate type Snow Agent can significantly improve the ice-melt situation of micro-surfacing mixture, and efficiency is relatively
High.
The above, be only presently preferred embodiments of the present invention, not the present invention imposed any restrictions.Every according to invention skill
Any simple modification, change and equivalence changes that art is substantially made to above example, all still fall within technical solution of the present invention
Protection domain in.
Claims (9)
1. a kind of micro-surfacing mixture with snow melting function is it is characterised in that be made up of the raw material of following weight portion：Gather materials
73.5～74.5 parts, 8～9 parts of SBR modified emulsifying asphalt, 4～5 parts of breeze, 7～9 parts of water, 1.2～1.8 parts of cement, microcapsules
1～4 part of phase-change material, 1～4 part of acetate type Snow Agent, the gradation types of the described micro-surfacing mixture with snow melting function are
MS-3 type.
2. a kind of micro-surfacing mixture with snow melting function according to claims 1 is it is characterised in that by following heavy
The raw material of amount part is made：Gather materials 74.5 parts, 8 parts of SBR modified emulsifying asphalt, 5 parts of breeze, 7 parts of water, 1.5 parts of cement, microcapsules phase
Become 2 parts of material, 2 parts of acetate type Snow Agent.
3. a kind of micro-surfacing mixture with snow melting function according to claims 1 is it is characterised in that by following heavy
The raw material of amount part is made：Gather materials 73.8 parts, 8 parts of SBR modified emulsifying asphalt, 5 parts of breeze, 8 parts of water, 1.2 parts of cement, microcapsules phase
Become 1 part of material, 3 parts of acetate type Snow Agent.
4. a kind of micro-surfacing mixture with snow melting function according to claims 1 is it is characterised in that by following heavy
The raw material of amount part is made：Gather materials 73.5 parts, 8 parts of SBR modified emulsifying asphalt, 5 parts of breeze, 8 parts of water, 1.5 parts of cement, microcapsules phase
Become 3 parts of material, 1 part of acetate type Snow Agent.
5. a kind of micro-surfacing mixture with snow melting function according to any claim in Claims 1-4, it is special
Levy and be, described microencapsulated phase change material is prepared from using in-situ compositing, concrete preparation process is：Heating paraffin is extremely complete
Full-fusing, obtains the fused solution of paraffin, and then zinc oxide, atlapulgite and hydroscopic high-molecular resin add the fused solution of paraffin
Middle stirring 10min is premixed, and obtains premix, adds in premix by melamine formaldehyde resin afterwards, after stirring 5min
Obtain microencapsulated phase change material；Described paraffin, zinc oxide, atlapulgite, hydroscopic high-molecular resin and melamine formaldehyde resin
Mass ratio be 70: 8: 7: 5: 10.
6. a kind of micro-surfacing mixture with snow melting function according to any claim in Claims 1-4, it is special
Levy and be, the particle diameter of described microencapsulated phase change material is 0.1 μm～10 μm.
7. a kind of micro-surfacing mixture with snow melting function according to any claim in Claims 1-4, it is special
Levy and be, described acetate type Snow Agent is calcium and magnesium acetate.
8. a kind of micro-surfacing mixture with snow melting function according to any claim in Claims 1-4, it is special
Levy and be, described SBR modified emulsifying asphalt is by matrix pitch, modifying agent, emulsifying agent and water (60～65) in mass ratio: (3～6)
: (1～3): (20～30) mix and form, described modifying agent is SBR latex, and described emulsifying agent is cationic asphalt emulsification
Agent.
9. a kind of side preparing the micro-surfacing mixture as described in any claim in Claims 1-4 with snow melting function
Method is it is characterised in that the method comprises the following steps：
Step one, by microencapsulated phase change material and acetate type Snow Agent mix and blend 5min～8min, obtain mix Snow Agent；
Step 2, by described in step one mixing Snow Agent be added in SBR modified pitch, stir speed (S.S.) for 50r/min～
Stir 60s～120s under conditions of 80r/min, obtain snow melt modified emulsifying asphalt；
Step 3, will gather materials, breeze and cement stir 5s～15s under conditions of stir speed (S.S.) is for 50r/min～80r/min,
Then add water continuation stirring 8～15s, adds snow melt modified emulsifying asphalt described in step 2 to continue stirring 8s～15s afterwards, obtains
To the micro-surfacing mixture with snow melting function.
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| CN113528087A (en) * | 2021-08-16 | 2021-10-22 | 华北水利水电大学 | Environment-friendly slow-release snow-melting agent, preparation method thereof and application thereof in micro-surfacing mixture |
| CN113528087B (en) * | 2021-08-16 | 2023-04-28 | 华北水利水电大学 | Environment-friendly slow-release snow-melting agent, preparation method thereof and application thereof in micro-surfacing mixture |
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