CN106758643A - Composite asphalt stress absorption film and preparation method thereof - Google Patents
Composite asphalt stress absorption film and preparation method thereof Download PDFInfo
- Publication number
- CN106758643A CN106758643A CN201710046821.2A CN201710046821A CN106758643A CN 106758643 A CN106758643 A CN 106758643A CN 201710046821 A CN201710046821 A CN 201710046821A CN 106758643 A CN106758643 A CN 106758643A
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- composite bed
- absorption film
- tire base
- stress absorption
- modified pitch
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- 239000002131 composite material Substances 0.000 title claims abstract description 122
- 239000010426 asphalt Substances 0.000 title claims abstract description 50
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 25
- 229920000642 polymer Polymers 0.000 claims abstract description 22
- 239000004744 fabric Substances 0.000 claims abstract description 20
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 18
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 18
- 239000004746 geotextile Substances 0.000 claims abstract description 11
- 229920000728 polyester Polymers 0.000 claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004698 Polyethylene Substances 0.000 claims abstract description 10
- 239000010453 quartz Substances 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract 2
- 239000011295 pitch Substances 0.000 claims description 47
- 239000000654 additive Substances 0.000 claims description 26
- 230000000996 additive effect Effects 0.000 claims description 26
- 238000003756 stirring Methods 0.000 claims description 25
- 239000000843 powder Substances 0.000 claims description 24
- 239000000498 cooling water Substances 0.000 claims description 10
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 239000006004 Quartz sand Substances 0.000 claims description 3
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 claims description 2
- 230000009172 bursting Effects 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000011049 filling Methods 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 239000010913 used oil Substances 0.000 claims description 2
- 244000025254 Cannabis sativa Species 0.000 claims 1
- 239000002318 adhesion promoter Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 24
- 239000004568 cement Substances 0.000 description 10
- 229920000573 polyethylene Polymers 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000004567 concrete Substances 0.000 description 5
- 238000005336 cracking Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 244000147058 Derris elliptica Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009430 construction management Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/187—Repairing bituminous covers, e.g. regeneration of the covering material in situ, application of a new bituminous topping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B11/00—Layered products comprising a layer of bituminous or tarry substances
- B32B11/04—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B11/00—Layered products comprising a layer of bituminous or tarry substances
- B32B11/04—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B11/046—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/002—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising natural stone or artificial stone
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/005—Methods or materials for repairing pavings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
- E01C7/147—Repairing concrete pavings, e.g. joining cracked road sections by dowels, applying a new concrete covering
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/185—Isolating, separating or connecting intermediate layers, e.g. adhesive layers; Transmission of shearing force in horizontal intermediate planes, e.g. by protrusions
Abstract
Composite asphalt stress absorption film of the present invention and preparation method thereof belongs to field of road construction, particularly a kind of anticracking waterproof sealing film suitable for bituminous paving.Including the wear-resisting separation layer, upper composite bed, tire base, lower composite bed and the overcoat that are arranged in order from top to bottom；The wear-resisting separation layer is made up of specification in 20 40 mesh quartz sands；Upper composite bed and lower composite bed are constituted by modified pitch of high polymer；The overcoat uses high density polyethylene (HDPE) PE films；The tire base is high-modulus tire base fabric, and high-modulus tire base fabric uses PFY geotextiles or Fibergrass polyester mat.Its preparation method includes 1）Composite bed and lower composite bed modified pitch of high polymer in preparation；2）Upper composite bed, lower composite bed and tire base junction are closed；3）Paste overcoat and wear-resisting separation layer；4）Volume is cut out in cooling.
Description
Technical field
Composite asphalt stress absorption film of the present invention and preparation method thereof belongs to field of road construction, particularly one kind and is applied to
Laying Asphalt Surface Course and the anticracking waterproof between Laying Asphalt Surface Course on old cement concrete road in asphalt pavement structure basic unit
Sealing film.
Background technology
With increasing sharply and heavily loaded increasing, the semi-rigid base based on cement stabilized macadam for China's volume of traffic
Layer, because the characteristics of strong bearing capacity of its plate body is high, is widely used.But because semi-rigid material binder is water
Mud, the temperature contracting of itself and characteristic of dryness shrinkage are easily caused base course crack when extraneous epidemic disaster changes.
The diseases such as the bituminous paving that Semi-rigid Base Reflective Crevice causes be it is inevitable, road engineering bound pair preventing and treating or
Slow down the measure of Semi-rigid Base Reflective Crevice always in experiment and heuristic process, to asphalt surface course crack resistance in correlation technique
Can research generally all lay particular emphasis on improvement Structural Materials for Asphaltic Pavement aspect, such as using flexbile base as semi-rigid type base and
Transition between surface layer, the construction management department having in recent years is even after cement stabilized macadam base has been laid every tens meters
Pre- joint-cutting is carried out, anti-cracking cloth is then laid at joint-cutting（PFY geotextiles or Fibergrass polyester mat）.
Flexbile base is due to involving great expense and does not meet the existing national conditions of China, therefore is not widely used；Pre-cut
Seam processing method, at present by many engineering Successful Practices, but its laying anti-cracking cloth, not only increase working procedure, and anticracking
Bonding between cloth and basic unit is not easily controlled, and fails to provide one layer of continuous indeformable waterproof layer to road surface.
Laying Asphalt Surface Course on old cement concrete road, common method is to process old cement concrete road by design requirement to reach accordingly
After technical requirements, anti-cracking cloth is laid thereon（PFY geotextiles or Fibergrass polyester mat）.But Laying Asphalt Surface Course with it is old
Sliding is easily produced between cement pavement, Construction control is bad, can cause accident resulting from poor quality of projects.
Therefore, it is eager need research and development it is a kind of be applied in asphalt pavement structure basic unit Laying Asphalt Surface Course and
Anticracking waterproof sealing film on old cement concrete road between Laying Asphalt Surface Course, is current desired.
The content of the invention
A kind of composite asphalt stress absorption film and its preparation that the purpose of the present invention is directed to above-mentioned weak point and provides
Method, as anticracking waterproof sealing, answering produced by the reflection crack, morning-night cement pavement reflection crack to semi-rigid type base
Power plays absorption, forms continuous waterproof sealing, and effectively prevention rainwater infiltration washes away to basic unit or with regard to cement pavement.This
The production shaping in advance before construction of stress absorption film is planted, is laid in construction and rolled.
The present invention takes following technical scheme to realize：
Composite asphalt stress absorption film includes the wear-resisting separation layer, upper composite bed, tire base, the lower composite bed that are arranged in order from top to bottom
And overcoat；
The wear-resisting separation layer is made up of specification in 20-40 mesh quartz sands；
Upper composite bed and lower composite bed are constituted by modified pitch of high polymer；
The overcoat uses high density polyethylene (HDPE) PE films；
The tire base is high-modulus tire base fabric, and high-modulus tire base fabric uses PFY geotextiles or Fibergrass polyester mat.
The modified pitch of high polymer is by SBS modified pitch, rubber powder, talcum powder, additive one, additive two
Constituted with Petropols.
The thickness of wear-resisting separation layer is 0.1mm.
Upper composite bed gross thickness is 0.4~0.6mm.
Lower composite bed thickness is 0.6~0.8mm.
The upper composite bed thickness is less than lower composite bed thickness, so that it is viscous with basic unit to increase composite asphalt stress absorption film
Knotting strength.
The additive one is used oil.
The additive two is 4,4 '-dimorpholinyl disulfide.
The matrix of SBS modified pitch is SBS pitches.
Wherein, the quality of rubber powder is the 15~25% of SBS modified pitch quality, and the quality of additive one is the rubber
The 0.3~0.9% of silty amount, the quality of additive two is the 0.2~0.6% of rubber powder quality；The Petropols are viscous as helping
Agent, addition is the 2~4% of gross mass；SBS modified pitch, rubber powder, talcum powder, additive one, additive two and oil tree
The upper composite bed of fat mixing composition.
Mass area ratio >=the 150g/m of the high-modulus tire base fabric2, vertically and horizontally pulling force >=8kN/m, CBR burstings are strong
Degree >=550N, fusing point >=230 DEG C.
The wear-resisting separation layer uniformly spreads paving and forms at high temperature by specification in 20-40 mesh quartz sand.
The overcoat uses high density polyethylene (HDPE) diaphragm, is the simplest macromolecular organic compound of structure, with spy
Different polyethylene (PE) plastic sheeting is the high density polyethylene (HDPE) diaphragm of base material.
The preparation method of composite asphalt stress absorption film of the present invention, including 1）Composite bed and lower composite bed high score in preparation
Sub- polymer modified asphalt；2）Upper composite bed, lower composite bed and tire base junction are closed；3）Paste overcoat and wear-resisting separation layer；4）It is cold
But volume is cut out；
Specifically include following steps：
1）The modified pitch of high polymer of composite bed and lower composite bed in preparation
1-1）It is delivered in agitator tank after SBS modified pitch is heated into 220 DEG C of fusings；
1-2）Add rubber powder to stir 5 ~ 6.5 hours, be well mixed rubber powder and SBS modified pitch, period is kept stirring for tank
Middle temperature is at 200-220 DEG C；
1-3）After rubber powder and SBS modified pitch are well mixed, additive one and the uniform stirring 1.5 ~ 2.5 of additive two are added
Hour；
1-4）Petropols are added to stir 40 ~ 50 minutes；
1-5）Talcum powder is added to stir 35 ~ 45 minutes.
The step 1-1）It is to melt SBS modified pitch to the storage tank heat for filling SBS modified pitch with heat-conducting oil furnace.
2）Upper composite bed, lower composite bed and tire base junction are closed
It is that PFY geotextiles or Fibergrass polyester mat spread laying out by high-modulus tire base fabric, infiltrates in pitch bay, by pitch
In pond by step 1）The modified pitch of high polymer for obtaining is attached to tire sill upper and lower surface, composite bed in formation
With lower composite bed so that high molecular polymer fully infiltrates through tire sill so as to form it into firm combination；
3）Paste overcoat and wear-resisting separation layer
By step 2）The tire base with upper and lower composite bed for obtaining is cooled down with cooling water, when being cooled to 90 DEG C, using spraying
Equipment is spread the uniform 20-40 mesh quartz sand of paving and forms wear-resisting separation layer in the upper surface of upper composite bed；PE films are pasted onto lower compound
The lower surface of layer, rolls through calender, obtains just finished product；
4）Using cooling water by step 3）The first finished product for obtaining is cooled to 20 DEG C, divides and is cut into volume, obtains composite asphalt stress absorption
Film.
The upper composite bed of composite asphalt stress absorption film of the present invention and lower composite bed under hot melt state with high-modulus tire base
What cloth was combined, modified asphalt material can fully infiltrate through tire base so that it is firmly combined with tire base, therefore upper composite bed is with
Composite bed is firmly combined together with tire base.In order to ensure the adhesion strength of composite asphalt stress absorption film and basic unit,
Upper composite bed thickness is less than lower composite bed.Based on the special structure sheaf of composite asphalt stress absorption film of the present invention, upper and lower composite bed
As two-layer stress absorbing layer, existing viscoplasticity high very high has good low temperature flexibility to poly- modified asphalt material high again, can
The need for adapting to pavement temperature deformation, the stress of sub-surface reflection crack is fully absorbed.In composite asphalt stress absorption film
High-strength tire base can make the cracked section have certain anti-crack ability, reduce fracture open deformation, reduce the stress collection of crack tip
In.Because composite asphalt stress absorption film of the present invention carries out industrialization machine-shaping in advance, according to strict job specfication, thus
It has the advantages that general sealing is incomparable, can function well as the function of anticracking waterproof.
Composite asphalt stress absorption film of the present invention has the following advantages that：
1st, certain suction can be played to the stress produced by the reflection crack of semi-rigid type base, morning-night cement pavement reflection crack
Adduction, prevents and treats pavement crack and association disease, increases the service life.
2nd, a totally enclosed waterproof layer can be provided to subjacent bed, prevents road surface from oozing under water and wash away basic unit；
3rd, the attached sand in upper surface, facilitates pneumatic-tired rollers to roll during construction, road roller will not be produced to take up problem；
4th, it is easy to be shaped by execution conditions, site road constructing operation is simple；
5th, possess stronger high-temperature stability and low temperature flexibility；
6th, engineering site is not polluted, environment is not influenceed；
7th, this product is easy to batch production processing, and is fabricated to the convenient transport of coiled material and stores.
Brief description of the drawings
Below with reference to accompanying drawing, the invention will be further described：
Fig. 1 is the structural representation of composite asphalt stress absorption film of the present invention.
In figure：1st, wear-resisting separation layer, 2, upper composite bed, 3, tire base, 4, lower composite bed, 5, overcoat.
Specific embodiment
Referring to the drawings 1, composite asphalt stress absorption film of the present invention include be arranged in order from top to bottom wear-resisting separation layer 1,
Upper composite bed 2, tire base 3, lower composite bed 4 and overcoat 5；
The wear-resisting separation layer 1 is made up of specification in 20-40 mesh quartz sands；
Upper composite bed 2 and lower composite bed 4 are by SBS modified pitch, rubber powder, talcum powder, additive one, additive two and oil
Resin is constituted；
The overcoat 5 protects PE films using high density polyethylene (HDPE)；
The tire base 3 is high-modulus tire base fabric, and high-modulus tire base fabric uses PFY geotextiles or Fibergrass polyester mat.
When composite asphalt stress absorption film of the present invention is used, optimal construction temperature uses lower supporting layer more than 15 DEG C
Blow bulging machine and blow drum totally, uniform sprinkling heated bitumen oil, consumption is 0.3 ~ 0.6L/m2, by coiled composite asphalt stress absorption film
Launch, with road direction as axis, PE films one face down, and tear following PE films, by composite asphalt stress absorption film flatly
Paving is on the support surface.Overlapping part width should be in 8 ~ 10cm.Rolled several times using pneumatic-tired rollers thereon, it is ensured that with subjacent bed
It is firm to bond.This product 180 DEG C of high temperature of requirement, without deformation；- 20 DEG C of flawlesses under overall low temperature；With aluminium sheet adhesiveness >=4.0N/
mm；Tensile break strength vertically and horizontally >=8KN/M.
Concrete example is described the preparation method of composite asphalt stress absorption film of the present invention below.
Embodiment 1：
1）The modified pitch of high polymer of composite bed and lower composite bed in preparation
1-1）It is delivered in agitator tank after SBS modified pitch is heated into 220 DEG C of fusings；
1-2）Add rubber powder to stir 5 hours, be well mixed rubber powder and SBS modified pitch, period is kept stirring for the middle temperature of tank
Degree is at 200-220 DEG C；
1-3）After rubber powder and SBS modified pitch are well mixed, add additive one and the uniform stirring 1.5 of additive two small
When；
1-4）Add Petropols stirring 40；
1-5）Talcum powder is added to stir 35 minutes；
2）Upper composite bed, lower composite bed and tire base junction are closed
It is that PFY geotextiles or Fibergrass polyester mat spread laying out by high-modulus tire base fabric, infiltrates in pitch bay, by pitch
Modified pitch of high polymer in pond is attached to tire sill upper and lower surface, composite bed and lower composite bed in formation so that
High molecular polymer fully infiltrates through tire sill so as to form it into firm combination；
3）Paste overcoat and wear-resisting separation layer
By step 2）The tire base with upper and lower composite bed for obtaining is cooled down with cooling water, when being cooled to 90 DEG C, using spraying
Equipment is spread paving 20-40 mesh quartz sands and forms wear-resisting separation layer in the upper surface of upper composite bed；High density polyethylene (HDPE) diaphragm is glued
The lower surface of lower composite bed is attached to, is rolled through calender, obtain just finished product；
4）Using cooling water by step 3）The first finished product for obtaining is cooled to 20 DEG C, divides and is cut into volume, obtains composite asphalt stress absorption
Film.
Embodiment 2：
1）The modified pitch of high polymer of composite bed and lower composite bed in preparation
1-1）It is delivered in agitator tank after SBS modified pitch is heated into 220 DEG C of fusings；
1-2）Add rubber powder to stir 6 hours, be well mixed rubber powder and SBS modified pitch, period is kept stirring for the middle temperature of tank
Degree is at 200-220 DEG C；
1-3）After rubber powder and SBS modified pitch are well mixed, additive one and two uniform stirring of additive 2 hours are added；
1-4）Petropols are added to stir 45 minutes；
1-5）Talcum powder is added to stir 40 minutes.
2）Upper composite bed, lower composite bed and tire base junction are closed
It is that PFY geotextiles or Fibergrass polyester mat spread laying out by high-modulus tire base fabric, infiltrates in pond of coating, will coats
Polymer-modified asphalt in pond is attached to tire sill upper and lower surface, composite bed and lower composite bed in formation so that macromolecule
Polymer fully infiltrates through tire sill so as to form it into firm combination；
3）Paste overcoat and wear-resisting separation layer
By step 2）The tire base with upper and lower composite bed for obtaining is cooled down with cooling water, when being cooled to 90 DEG C, using spraying
Equipment is spread paving 20-40 mesh quartz sands and forms wear-resisting separation layer in the upper surface of upper composite bed；High density polyethylene (HDPE) diaphragm is glued
The lower surface of lower composite bed is attached to, is rolled through calender, obtain just finished product；
4）Using cooling water by step 3）The first finished product for obtaining is cooled to 20 DEG C, divides and is cut into volume, obtains composite asphalt stress absorption
Film.
Embodiment 3：
1）The modified pitch of high polymer of composite bed and lower composite bed in preparation
1-1）It is delivered in agitator tank after SBS modified pitch is heated into 220 DEG C of fusings；
1-2）Add rubber powder to stir 6.5 hours, be well mixed rubber powder and SBS modified pitch, period is kept stirring in tank
Temperature is at 200-220 DEG C；
1-3）After rubber powder and SBS modified pitch are well mixed, add additive one and the uniform stirring 2.5 of additive two small
When；
1-4）Petropols are added to stir 50 minutes；
1-5）Talcum powder is added to stir 45 minutes.
2）Upper composite bed, lower composite bed and tire base junction are closed
It is that PFY geotextiles or Fibergrass polyester mat spread laying out by high-modulus tire base fabric, infiltrates in pond of coating, will coats
Modified pitch of high polymer in pond is attached to tire sill upper and lower surface, composite bed and lower composite bed in formation so that
High molecular polymer fully infiltrates through tire sill so as to form it into firm combination；
3）Paste overcoat and wear-resisting separation layer
By step 2）The tire base with upper and lower composite bed for obtaining is cooled down with cooling water, when being cooled to 90 DEG C, using spraying
Equipment is spread paving 20-40 mesh quartz sands and forms wear-resisting separation layer in the upper surface of upper composite bed；High density polyethylene (HDPE) diaphragm is glued
The lower surface of lower composite bed is attached to, is rolled through calender, obtain just finished product；
4）Using cooling water by step 3）The first finished product for obtaining is cooled to 20 DEG C, divides and is cut into volume, obtains composite asphalt stress absorption
Film.
General principle of the invention and principal character and advantages of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (9)
1. a kind of composite asphalt stress absorption film, it is characterised in that：Including the wear-resisting separation layer, upper multiple being arranged in order from top to bottom
Close layer, tire base, lower composite bed and overcoat；
The wear-resisting separation layer is made up of specification in 20-40 mesh quartz sands；
Upper composite bed and lower composite bed are constituted by modified pitch of high polymer；
The overcoat uses high density polyethylene (HDPE) PE films；
The tire base is high-modulus tire base fabric, and high-modulus tire base fabric uses PFY geotextiles or Fibergrass polyester mat.
2. composite asphalt stress absorption film according to claim 1, it is characterised in that：The modified drip of the high molecular polymer
Green grass or young crops is made up of SBS modified pitch, rubber powder, talcum powder, additive one, additive two and Petropols.
3. composite asphalt stress absorption film according to claim 1, it is characterised in that：The thickness of wear-resisting separation layer is
0.1mm。
4. composite asphalt stress absorption film according to claim 1, it is characterised in that：Upper composite bed gross thickness be 0.4~
0.6mm, lower composite bed thickness is 0.6~0.8mm.
5. composite asphalt stress absorption film according to claim 1, it is characterised in that：The upper composite bed thickness is less than down
Composite bed thickness, so as to increase the adhesion strength of composite asphalt stress absorption film and basic unit.
6. composite asphalt stress absorption film according to claim 2, it is characterised in that：The additive one is used oil,
The additive two is 4,4 '-dimorpholinyl disulfide, and the matrix of SBS modified pitch is SBS pitches.
7. composite asphalt stress absorption film according to claim 2, it is characterised in that：The quality of rubber powder is modified for SBS
The 15~25% of asphalt quality, the quality of additive one is the 0.3~0.9% of the rubber powder quality, and the quality of additive two is
The 0.2~0.6% of rubber powder quality；Used as adhesion promoter, addition is the 2~4% of gross mass to the Petropols.
8. composite asphalt stress absorption film according to claim 1, it is characterised in that：The unit of the high-modulus tire base fabric
Area quality >=150g/m2, vertically and horizontally pulling force >=8kN/m, CBR bursting strengths >=550N, fusing point >=230 DEG C.
9. the preparation method of composite asphalt stress absorption film as claimed in claim 1, it is characterised in that including 1）It is multiple in preparation
Close layer and lower composite bed modified pitch of high polymer；2）Upper composite bed, lower composite bed and tire base junction are closed；3）Paste protection
Layer and wear-resisting separation layer；4）Volume is cut out in cooling；
Specifically include following steps：
1）The modified pitch of high polymer of composite bed and lower composite bed in preparation
1-1）It is delivered in agitator tank after SBS modified pitch is heated into 220 DEG C of fusings；
1-2）Add rubber powder to stir 5 ~ 6.5 hours, be well mixed rubber powder and SBS modified pitch, period is kept stirring for tank
Middle temperature is at 200-220 DEG C；
1-3）After rubber powder and SBS modified pitch are well mixed, additive one and the uniform stirring 1.5 ~ 2.5 of additive two are added
Hour；
1-4）Petropols are added to stir 40 ~ 50 minutes；
1-5）Talcum powder is added to stir 35 ~ 45 minutes；
The step 1-1）It is to melt SBS modified pitch to the storage tank heat for filling SBS modified pitch with heat-conducting oil furnace；
2）Upper composite bed, lower composite bed and tire base junction are closed
It is that PFY geotextiles or Fibergrass polyester mat spread laying out by high-modulus tire base fabric, infiltrates in pitch bay, by pitch
In pond by step 1）The modified pitch of high polymer for obtaining is attached to tire sill upper and lower surface, composite bed in formation
With lower composite bed so that high molecular polymer fully infiltrates through tire sill so as to form it into firm combination；
3）Paste overcoat and wear-resisting separation layer
By step 2）The tire base with upper and lower composite bed for obtaining is cooled down with cooling water, when being cooled to 90 DEG C, using spraying
Equipment is spread the uniform 20-40 mesh quartz sand of paving and forms wear-resisting separation layer in the upper surface of upper composite bed；PE films are pasted onto lower compound
The lower surface of layer, rolls through calender, obtains just finished product；
4）Using cooling water by step 3）The first finished product for obtaining is cooled to 20 DEG C, divides and is cut into volume, obtains composite asphalt stress absorption
Film.
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| CN201710046821.2A CN106758643A (en) | 2017-01-22 | 2017-01-22 | Composite asphalt stress absorption film and preparation method thereof |
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| CN107354837A (en) * | 2017-08-18 | 2017-11-17 | 中交第二公路勘察设计研究院有限公司 | A kind of coiled material for being used to prevent and treat Reflective Crack over Asphalt Pavement with Semi-rigid |
| CN114539942A (en) * | 2022-03-08 | 2022-05-27 | 新疆心路科技有限公司 | Dustproof and impermeable adhesive for bridge expansion joint and preparation method thereof |
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| CN114539942A (en) * | 2022-03-08 | 2022-05-27 | 新疆心路科技有限公司 | Dustproof and impermeable adhesive for bridge expansion joint and preparation method thereof |
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