CN107829344A - A kind of highway superpower composite seal coat material and construction application - Google Patents
A kind of highway superpower composite seal coat material and construction application Download PDFInfo
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- CN107829344A CN107829344A CN201710924416.6A CN201710924416A CN107829344A CN 107829344 A CN107829344 A CN 107829344A CN 201710924416 A CN201710924416 A CN 201710924416A CN 107829344 A CN107829344 A CN 107829344A
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- 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
- E01C7/35—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/02—Polyureas
-
- 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
- E01C7/35—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them
- E01C7/358—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them with a combination of two or more binders according to groups E01C7/351 - E01C7/356
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
Include cohering layer material and rubble, in addition to energy-absorbing spraying layer material with superpower composite seal coat material, the superpower composite seal coat material of the highway the invention provides a kind of highway；Energy-absorbing sprayed coating, gluing layer and rubble spill laying and set gradually from bottom to top；Described energy-absorbing spraying layer material, is made up of following raw material：Polyurea prepolymer, nano-graphene, chain extender, coupling agent, defoamer and filler；Described polyurea prepolymer, to be made up of following raw material：Isocyanates and amino-compound.Described highway is used for the construction application of Sub-sealing Course or upper sealing with superpower composite seal coat material, for road surface, the surface of bridge floor and tunnel face or interlayer.Stress absorption effect and the work of high temperature resistant effect based on superpower composite seal coat material.Mechanical stress caused by traffic load shock and vibration road surface can be carried out absorption dissipation, stress absorption significant effect by the present invention, and stress absorption function never fails, and really establishes the road structure system of long-life.
Description
Technical field
The present invention relates to field of road, and in particular to a kind of highway superpower composite seal coat material and construction application.
Background technology
With the development of highway in China traffic, original pavement structure can not meet the volume of traffic demand increasingly to increase severely,
For Heavy Traffic, pavement structure well damage, pavement behavior speed of worsening is accelerated.If in road surface or layer
Between a kind of superpower composite seal coat material is set, then can prolonging service life of pavement, pavement structure thickness is thinned.Consider government simultaneously
Department's limitation is cut into a mountain the present situation for causing building stones deficient, set superpower composite seal coat material can because be thinned pavement structure thickness and then
Reduce in pavement construction process of construction to the dependence of building stones.
The content of the invention
For the deficiencies in the prior art, it is an object of the present invention to provide a kind of highway with superpower composite seal coat
Material and construction application, solve existing road surface high temperature loss of properties on aging, cause the technical problem that service life of road surface is short.
In order to solve the above-mentioned technical problem, the application, which adopts the following technical scheme that, is achieved：
A kind of superpower composite seal coat material of highway, including layer material and rubble are cohered, in addition to energy-absorbing spraying layer material；
Energy-absorbing sprayed coating is made using energy-absorbing sprayed coating material spraying, gluing layer is paved into using cohering layer material and spilling, uses
Rubble, which is spilt, to be paved into rubble and spills laying, and described energy-absorbing sprayed coating, gluing layer and rubble spill laying and set gradually from bottom to top；
Described energy-absorbing spraying layer material, is made up of following raw material：Polyurea prepolymer, nano-graphene, chain extender, coupling
Agent, defoamer and filler；
Described polyurea prepolymer, to be made up of following raw material：Isocyanates and amino-compound.
The present inventionization has following distinguishing feature：
Specifically, described energy-absorbing sprayed coating material, in terms of parts by weight, is made up of following raw material：Polyureas pre-polymerization
Thing is 100 parts, and nano-graphene is 5~30 parts, chain extender is 5~9 parts, coupling agent is 2 parts, defoamer is 2 parts, filler 3
Part；
Described polyurea prepolymer, in terms of parts by weight, to be made up of following raw material：20~35 parts of isocyanates, amino
65~80 parts of compound, the parts by weight sum of raw material is 100 parts.
Preferably, described energy-absorbing spraying layer material, in terms of parts by weight, to be made up of following raw material：Polyurea prepolymer
For 100 parts, nano-graphene is 12 parts, chain extender is 9 parts, coupling agent is 2 parts, defoamer is 2 parts, and filler is 3 parts；
Described polyurea prepolymer, in terms of parts by weight, to be made up of following raw material：30 parts of isocyanates, amino chemical combination
70 parts of thing.
It is highly preferred that described isocyanates is methyl isocyanate, ethyl isocyanate or propyl isocyanate；
Described amino-compound is amine terminated polyether；
Described nano-graphene is the lamellar graphite alkene that thickness is less than 10nm.
Preferably, described chain extender is ethylene glycol, 1,2-PD, 1,3-PD, BDO, methyl-prop two
One or more of alcohol combines；
It is furthermore preferred that described coupling agent is that KH550 silane couplers, KH560 silane couplers or KH570 are silane coupled
Agent；
Described defoamer is polyoxyethylene defoamer；
Described filler is calcium carbonate or titanium dioxide.
Specifically, the described layer material that coheres uses modified emulsifying asphalt.
Preferably, described modified emulsifying asphalt, which is emulsified asphalt modified with water-epoxy resin, epoxy resin SBS is compound changes
Property emulsified asphalt or polyurethane-SBS composite modified emulsification asphalts.
The present invention also protects a kind of highway as described above with superpower composite seal coat material for Sub-sealing Course or upper sealing
Construction application, for road surface, the surface of bridge floor and tunnel face or interlayer.
Specifically, construction and application method follows the steps below：
Step 1, highway base course matrix is repaired, flattened, dry and cleaning treatment；
Step 2, isocyanates and amino-compound are mixed according to formula rate, form polyurea prepolymer, be calculated as A groups
Point；
Nano-graphene, chain extender, coupling agent, defoamer and filler are mixed according to formula rate, are calculated as B component；
Energy-absorbing spraying layer material is obtained after component A and B component are mixed according to formula rate, energy-absorbing spraying layer material is led to
Cross super-pressure flush coater to spray the highway base course matrix after step 1 is handled, spraying is conserved after terminating, shape
Into energy-absorbing sprayed coating；
Step 3, paving is spilt on the surface of energy-absorbing sprayed coating and coheres layer material, forms gluing layer, cohere layer material spilling paving
Paving rubble is spilt simultaneously, is formed rubble and is spilt laying.
Preferably, described rubble is single particle size rubble；Described single particle size rubble use particle diameter for 2.36~
4.75mm, 4.75~9.5mm, the single particle size rubble of 9.5~13.2mm or 9.5~16mm specifications.
Another preferred, when described highway is used for upper sealing with superpower composite seal coat material, described rubble spills laying
Surface implement preventive maintenance measure and form preventive maintenance layer；Described prevention conservation layer is that micro-surface area layer or thin pulp seal
Layer.
Compared with prior art, beneficial has the technical effect that the present invention：
(I) present invention is a kind of superpower composite seal coat material of highway, the stress absorption based on superpower composite seal coat material
Effect and the work of high temperature resistant effect.The present invention can be absorbed mechanical stress caused by traffic load shock and vibration road surface
Dissipate, stress absorption significant effect, stress absorption function never fails, and really establishes the road structure system of long-life.
(II) energy-absorbing of the invention spraying layer material is the polyureas pre-polymerization with isocyanates and amino-compound reaction generation
Thing is primary raw material, under nano-graphene material, coupling agent, chain extender, defoamer and filler effect reaction formed it is superpower multiple
Close sealing material.The superpower composite seal coat material of the present invention can under 160 DEG C of construction at high temperature environment of bituminous paving not ageing failure,
It can reach the effect in 180~200 DEG C of not saboteur's structures, not influenceed by environment temperature, humidity during present invention construction,
It is green.
(III) present invention can reduce surface traffic load to bottom with the energy-absorbing sprayed coating of energy-absorbing sprayed coating material spraying
Action breaks down, ensure that pavement structure can bear bigger load, improve pavement structure durability, while road surface knot can also be thinned
Structure, so as to reduce in pavement construction process of construction to the dependence of building stones.
Brief description of the drawings
Tu1Shi highways section structure diagram when the Sub-sealing Course with superpower composite seal coat materials application.
Tu2Shi highways section structure diagram when the upper sealing with superpower composite seal coat materials application.
The implication of each label is in figure：1- energy-absorbing sprayed coatings, 2- gluing layers, 3- rubbles spill laying, and 4- single particle sizes are broken
Stone.
Explanation further is explained in detail to present invention work with reference to embodiments.
Embodiment
It is the highway of main material with superpower composite seal coat material that the present invention, which have devised using polyurea materials, is overcome existing poly-
Urea prepolymers material the defects of failing and causing molecular structure system to destroy easy to aging, energy under bituminous paving construction at high temperature environment
Enough reduce or delay pavement structure to damage, prolonging service life of pavement, while pavement structure can also be thinned, reduce pavement construction and build
To the dependence of building stones during if.
The highway that the present invention designs is with superpower composite seal coat material based on polyurea prepolymer, but existing polyurea materials exist
It is easy to aging under 160 DEG C of high temperature above environment to fail and easily cause the destruction of molecular structure system, and asphalt concrete pavement is applied at present
Work temperature is more more than 160 DEG C, therefore prepares the excellent superpower composite seal coat material of resistance to elevated temperatures, establishes efficient, durable
Superpower composite seal coat material is particularly important.
The method can be widely used in road engineering, stress absorption significant effect, heat endurance are good, waterproof cohere effect it is good,
Construction is not influenced by ambient temperature, can reduce or delay pavement structure to damage, prolonging service life of pavement, while can also be thinned
Pavement structure, high-efficiency environment friendly.
The present invention highway there are two kinds of purposes of Sub-sealing Course and upper sealing with superpower composite seal coat material, available for road surface,
The surface and its interlayer in bridge floor and tunnel face.When highway is used for Sub-sealing Course with superpower composite seal coat material, including suction from bottom to top
Energy sprayed coating, gluing layer and rubble spill laying.When highway is used for upper sealing with superpower composite seal coat material, including from bottom to top
Energy-absorbing sprayed coating, gluing layer and rubble spill laying, cohere layer surface and directly spill paving single particle size rubble, or rubble spills laying upper berth
Provided with prevention conservation layer, prevention conservation layer is micro-surface area layer or slurry seal.Prevention conservation layer has the effect such as wear-resisting, waterproof,
Road table disease can be also reduced simultaneously, improve road table antiskid performance.
In following embodiments, the effect of energy-absorbing sprayed coating is the power of sorbent surface traffic load transmission, to improve road surface, bridge
The surface or interlayer structure durability in face and tunnel face, while pavement structure can also be thinned, have high temperature resistant, waterproof, cohesive action concurrently.
In following embodiments, gluing layer is made of modified emulsifying asphalt laying.Modified emulsifying drip in following embodiments
Green grass or young crops is emulsified asphalt modified with water-epoxy resin, can also use epoxy resin SBS composite modified emulsification asphalts or polyurethane-
SBS composite modified emulsification asphalts are replaced.Gluing layer ensures cohering for the interlayer up and down of energy-absorbing sprayed coating.
In following embodiments, rubble is spilt laying and is paved into using single particle size rubble, single particle size rubble use particle diameter for
2.36~4.75mm, 4.75~9.5mm, the single particle size rubble of 9.5~13.2mm or 9.5~16mm specifications, as needed choosing
Select one kind in one of particle size range, i.e. single particle size rubble.
In following embodiments, methyl isocyanate can also be replaced using ethyl isocyanate or propyl isocyanate, effect base
This is identical.
In following embodiments, chain extender BDO can also use ethylene glycol, 1,2-PD, 1,3-PD,
Or methyl propanediol is replaced, effect is essentially identical.
In following embodiments, coupling agent KH570 silane couplers can also use KH550 silane couplers or KH560 silicon
Alkane coupling agent is replaced, and effect is essentially identical.
In following embodiments, filler-calcium carbonate can also be replaced using titanium dioxide, and effect is essentially identical.
In following embodiments, highway base course matrix refers to semi-rigid type base, cement concrete matrix and/or pitch coagulation
Soil matrix body.
Above-mentioned technical proposal is deferred to, specific embodiment of the invention given below is, it is necessary to which explanation is the present invention not office
It is limited to specific examples below, all equivalents done on the basis of technical scheme each fall within the protection model of the present invention
Enclose.The present invention is described in further details with reference to embodiment.
Embodiment 1：
The present embodiment provides a kind of superpower composite seal coat material of highway, including coheres layer material and rubble, in addition to inhales
Layer material can be sprayed；
Energy-absorbing sprayed coating is made using energy-absorbing sprayed coating material spraying, gluing layer is paved into using cohering layer material and spilling, uses
Rubble, which is spilt, to be paved into rubble and spills laying, and described energy-absorbing sprayed coating, gluing layer and rubble spill laying and set gradually from bottom to top；
Described energy-absorbing spraying layer material, in terms of parts by weight, is made up of following raw material：Polyurea prepolymer is 100 parts, is received
Rice graphene is 18 parts, chain extender is 9 parts, coupling agent is 2 parts, defoamer is 2 parts, and filler is 3 parts；Described polyureas pre-polymerization
Thing, in terms of parts by weight, to be made up of following raw material：20 parts of isocyanates, 80 parts of amino-compound.
In the present embodiment：
Isocyanates is methyl isocyanate.
Amino-compound is amine terminated polyether, and the number-average molecular weight of amine terminated polyether is 5000.
Nano-graphene is the lamellar graphite alkene that thickness is less than 10nm.
Chain extender is 1,4- butanediols.
Coupling agent is KH570 silane couplers.
Defoamer is dimethyl silicone polymer, and the number-average molecular weight of dimethyl silicone polymer is 50000.
Filler is calcium carbonate.
Using one：The highway of the present embodiment is used for the construction application of Sub-sealing Course with superpower composite seal coat material, such as Fig. 1 institutes
Show.Construction and application method follows the steps below：
Step 1, highway base course matrix is repaired, flattened, dry and cleaning treatment；
Step 2, isocyanates and amino-compound are mixed according to formula rate, form polyurea prepolymer, be calculated as A groups
Point；
Nano-graphene, chain extender, coupling agent, defoamer and filler are mixed according to formula rate, are calculated as B component；
Energy-absorbing spraying layer material is obtained after component A and B component are mixed according to formula rate, energy-absorbing spraying layer material is led to
Cross super-pressure flush coater to spray the highway base course matrix after step 1 is handled, spraying is conserved after terminating, shape
Into energy-absorbing sprayed coating；
Step 3, paving is spilt on the surface of energy-absorbing sprayed coating and coheres layer material, forms gluing layer, cohere layer material spilling paving
Paving rubble is spilt simultaneously, is formed rubble and is spilt laying.
Ensure that spilling the gluing layer for being taped against energy-absorbing sprayed coating surface and rubble spills strong bonded between laying, sprays energy-absorbing
Layer, gluing layer and rubble spill one entirety of laying formation and played a role, and form the superpower composite seal coat of highway.
Using two：The highway of the present embodiment is used for the construction application of upper sealing with superpower composite seal coat material, such as Fig. 2 institutes
Show.Construction and application method follows the steps below：
Step 1, highway base course matrix is repaired, flattened, dry and cleaning treatment；
Step 2, isocyanates and amino-compound are mixed according to formula rate, form polyurea prepolymer, be calculated as A groups
Point；
Nano-graphene, chain extender, coupling agent, defoamer and filler are mixed according to formula rate, are calculated as B component；
Energy-absorbing spraying layer material is obtained after component A and B component are mixed according to formula rate, energy-absorbing spraying layer material is led to
Cross super-pressure flush coater to spray the highway base course matrix after step 1 is handled, spraying is conserved after terminating, shape
Into energy-absorbing sprayed coating；
Step 3, paving is spilt on the surface of energy-absorbing sprayed coating and coheres layer material, forms gluing layer, cohere layer material spilling paving
Paving single particle size rubble is spilt simultaneously, is formed rubble and is spilt laying.Ensure that there is good skid resistance with the surface that vehicle directly acts on
Energy.
Or it can also be followed the steps below as a kind of selectable alternative solution, step 3：
Step 3, paving is spilt on the surface of energy-absorbing sprayed coating and coheres layer material, forms gluing layer, cohere layer material spilling paving
Paving rubble is spilt simultaneously, rubble is formed and spills laying, and the surface implementation preventive maintenance measure that laying is spilt in rubble forms preventative support
Sheath；It is micro-surface area layer or slurry seal to prevent conservation layer.
Performance test：To verify that the highway of the present embodiment has good stress absorption performance with superpower composite seal coat material
With good waterproof bond performance, reference《Highway engineering stabilized with inorganic binder testing of materials code》(JTG E51-2009) is pre-
Size processed is 30*30*5cm semi-rigid type base, and 3mm thickness composite seal coats are sprayed according to the above-mentioned construction procedure applied to Sub-sealing Course
Material, and the thick bituminous concretes of 4cm are overlayed, test specimen carries out performance test after completing, and test result is as shown in table 1；
Reference《Highway engineering cement and cement concrete testing regulations》(JTG E30-2005) prefabrication size is 30*30*
5cm cement concrete test specimen, 3mm thickness composite seal coat materials are sprayed according to the above-mentioned construction procedure applied to Sub-sealing Course, and added
Spread 4cm thick asphalt concrete layers.Composite member carries out performance test after completing, and test result is as shown in table 2；
Reference《Highway engineering pitch and Asphalt Mixture Experiment code》(JTG E20-2011) prefabrication size is 30*30*
5cm bituminous concrete test specimen, it is thick multiple to spray 3mm according to the above-mentioned construction procedure applied to upper sealing (bituminous concrete matrix)
Sealing material is closed, for convenience of drawing bond strength and shear strength is tested, overlays 5mm thick asphalt concrete layers.Composite member system
Performance test is carried out after completing, test result is as shown in table 3.During the composite seal coat material spraying, the lifting of test specimen temperature is arrived
180℃。
Embodiment 2：
The present embodiment provides a kind of superpower composite seal coat material of highway, and the highway is with superpower composite seal coat material with implementing
The formula for differing only in energy-absorbing spraying layer material of example 1 is different, specific as follows：
Described energy-absorbing spraying layer material, in terms of parts by weight, is made up of following raw material：Polyurea prepolymer is 100 parts, is received
Rice graphene is 30 parts, chain extender is 9 parts, coupling agent is 2 parts, defoamer is 2 parts, and filler is 3 parts；Described polyureas pre-polymerization
Thing, in terms of parts by weight, to be made up of following raw material：35 parts of isocyanates, 65 parts of amino-compound.
In the present embodiment each raw material selection and specification requirement it is same as Example 1.
Using one：The highway of the present embodiment is used for the construction application of Sub-sealing Course with superpower composite seal coat material, specifically applies
Work application process is same as Example 1.
Using two：The highway of the present embodiment is used for the construction application of upper sealing with superpower composite seal coat material, specifically applies
Work application process is same as Example 1.
Performance test：The performance test process of the present embodiment is substantially the same manner as Example 1, the performance test knot of the present embodiment
Fruit is respectively as shown in table 1, table 2 and table 3.
Embodiment 3：
The present embodiment provides a kind of superpower composite seal coat material of highway, and the highway is with superpower composite seal coat material with implementing
The formula for differing only in energy-absorbing spraying layer material of example 1 is different, specific as follows：
Described energy-absorbing spraying layer material, in terms of parts by weight, is made up of following raw material：Polyurea prepolymer is 100 parts, is received
Rice graphene is 12 parts, chain extender is 9 parts, coupling agent is 2 parts, defoamer is 2 parts, and filler is 3 parts；Described polyureas pre-polymerization
Thing, in terms of parts by weight, to be made up of following raw material：20 parts of isocyanates, 80 parts of amino-compound.
In the present embodiment each raw material selection and specification requirement it is same as Example 1.
Using one：The highway of the present embodiment is used for the construction application of Sub-sealing Course with superpower composite seal coat material, specifically applies
Work application process is same as Example 1.
Using two：The highway of the present embodiment is used for the construction application of upper sealing with superpower composite seal coat material, specifically applies
Work application process is same as Example 1.
Performance test：The performance test process of the present embodiment is substantially the same manner as Example 1, the performance test knot of the present embodiment
Fruit is respectively as shown in table 1, table 2 and table 3.
Embodiment 4：
The present embodiment provides a kind of superpower composite seal coat material of highway, and the highway is with superpower composite seal coat material with implementing
The formula for differing only in energy-absorbing spraying layer material of example 1 is different, specific as follows：
Described energy-absorbing spraying layer material, in terms of parts by weight, is made up of following raw material：Polyurea prepolymer is 100 parts, is received
Rice graphene is 5 parts, chain extender is 9 parts, coupling agent is 2 parts, defoamer is 2 parts, and filler is 3 parts；Described polyurea prepolymer,
In terms of parts by weight, to be made up of following raw material：30 parts of isocyanates, 70 parts of amino-compound.
In the present embodiment each raw material selection and specification requirement it is same as Example 1.
Using one：The highway of the present embodiment is used for the construction application of Sub-sealing Course with superpower composite seal coat material, specifically applies
Work application process is same as Example 1.
Using two：The highway of the present embodiment is used for the construction application of upper sealing with superpower composite seal coat material, specifically applies
Work application process is same as Example 1.
Performance test：The performance test process of the present embodiment is substantially the same manner as Example 1, the performance test knot of the present embodiment
Fruit is respectively as shown in table 1, table 2 and table 3.
Embodiment 5：
The present embodiment provides a kind of superpower composite seal coat material of highway, and the highway is with superpower composite seal coat material with implementing
The formula for differing only in energy-absorbing spraying layer material of example 1 is different, specific as follows：
Described energy-absorbing spraying layer material, in terms of parts by weight, is made up of following raw material：Polyurea prepolymer is 100 parts, is received
Rice graphene is 12 parts, chain extender is 9 parts, coupling agent is 2 parts, defoamer is 2 parts, and filler is 3 parts；Described polyureas pre-polymerization
Thing, in terms of parts by weight, to be made up of following raw material：30 parts of isocyanates, 70 parts of amino-compound.
In the present embodiment each raw material selection and specification requirement it is same as Example 1.
Using one：The highway of the present embodiment is used for the construction application of Sub-sealing Course with superpower composite seal coat material, specifically applies
Work application process is same as Example 1.
Using two：The highway of the present embodiment is used for the construction application of upper sealing with superpower composite seal coat material, specifically applies
Work application process is same as Example 1.
Performance test：The performance test process of the present embodiment is substantially the same manner as Example 1, the performance test knot of the present embodiment
Fruit is respectively as shown in table 1, table 2 and table 3.
Embodiment 6：
The present embodiment provides a kind of superpower composite seal coat material of highway, and the highway is with superpower composite seal coat material with implementing
The formula for differing only in energy-absorbing spraying layer material of example 1 is different, specific as follows：
Described energy-absorbing spraying layer material, in terms of parts by weight, is made up of following raw material：Polyurea prepolymer is 100 parts, is received
Rice graphene is 12 parts, chain extender is 5 parts, coupling agent is 2 parts, defoamer is 2 parts, and filler is 3 parts；Described polyureas pre-polymerization
Thing, in terms of parts by weight, to be made up of following raw material：30 parts of isocyanates, 70 parts of amino-compound.
In the present embodiment each raw material selection and specification requirement it is same as Example 1.
Using one：The highway of the present embodiment is used for the construction application of Sub-sealing Course with superpower composite seal coat material, specifically applies
Work application process is same as Example 1.
Using two：The highway of the present embodiment is used for the construction application of upper sealing with superpower composite seal coat material, specifically applies
Work application process is same as Example 1.
Performance test：The performance test process of the present embodiment is substantially the same manner as Example 1, the performance test knot of the present embodiment
Fruit is respectively as shown in table 1, table 2 and table 3.
Comparative example 1：
This comparative example provides a kind of composite seal coat material, and the material is substantially the same manner as Example 5, differs only in, will
100 parts of polyurea prepolymers in embodiment 5 are replaced by 100 parts of amine terminated polyether.
In this comparative example each raw material selection and specification requirement it is same as Example 5.
Using one：The composite seal coat material of this comparative example is used for the construction application of Sub-sealing Course, specific construction and application method
It is same as Example 1.
Using two：The composite seal coat material of this comparative example is used for the construction application of upper sealing, specific construction and application method
It is same as Example 1.
Performance test：The performance test process of this comparative example is substantially the same manner as Example 1, the performance test knot of the present embodiment
Fruit is respectively as shown in table 1, table 2 and table 3.
Comparative example 2：
This comparative example provides a kind of composite seal coat material, and the material is substantially the same manner as Example 5, differs only in, will
100 parts of polyurea prepolymers in embodiment 5 are replaced by 100 parts of methyl isocyanate.
In this comparative example each raw material selection and specification requirement it is same as Example 5.
Using one：The composite seal coat material of this comparative example is used for the construction application of Sub-sealing Course, specific construction and application method
It is same as Example 1.
Using two：The composite seal coat material of this comparative example is used for the construction application of upper sealing, specific construction and application method
It is same as Example 1.
Performance test：The performance test process of this comparative example is substantially the same manner as Example 1, the performance test knot of the present embodiment
Fruit is respectively as shown in table 1, table 2 and table 3.
Comparative example 3：
This comparative example provides a kind of composite seal coat material, and the material is substantially the same manner as Example 5, differs only in, this
Without addition nano-graphene in comparative example.
In this comparative example each raw material selection and specification requirement it is same as Example 5.
Using one：The composite seal coat material of this comparative example is used for the construction application of Sub-sealing Course, specific construction and application method
It is same as Example 1.
Using two：The composite seal coat material of this comparative example is used for the construction application of upper sealing, specific construction and application method
It is same as Example 1.
Performance test：The performance test process of this comparative example is substantially the same manner as Example 1, the performance test knot of the present embodiment
Fruit is respectively as shown in table 1, table 2 and table 3.
Comparative example 4：
This comparative example provides a kind of composite seal coat material, and the material is substantially the same manner as Example 5, differs only in, this
Without addition polyurea prepolymer and nano-graphene in comparative example.
In this comparative example each raw material selection and specification requirement it is same as Example 5.
Using one：The composite seal coat material of this comparative example is used for the construction application of Sub-sealing Course, specific construction and application method
It is same as Example 1.
Using two：The composite seal coat material of this comparative example is used for the construction application of upper sealing, specific construction and application method
It is same as Example 1.
Performance test：The performance test process of this comparative example is substantially the same manner as Example 1, the performance test knot of the present embodiment
Fruit is respectively as shown in table 1, table 2 and table 3.
The superpower composite seal coat material properties test table of table 1 (semi-rigid type base-asphalt concrete pavement interlayer)
The superpower composite seal coat material properties test table of table 2 (cement concrete matrix)
The superpower composite seal coat material properties test table of table 3 (bituminous concrete matrix)
Analysis：
1. contrasted from upper table embodiment 1~6 and comparative example 1~4：The stress absorption significant effect of embodiment 1~6 increases
By force, especially embodiment 5 can reduce by more than 50% stress transmission, show the superpower composite seal coat materials application in upper sealing or under
Good stress absorption effect is respectively provided with during sealing；The composite seal coat tensile strength of material is high, and is applied to have in combining structure
There is the features such as drawing bond strength is high, shear strength is high, application effect is notable.
2. from the embodiment 5 of table 3 compared with comparative example 3：The stress absorption under 180 DEG C of construction at high temperature environment of embodiment 5
Significant effect, and the stress absorption decreased effectiveness of comparative example 3, it is super to show that polyurea materials of the present invention generate with nano-graphite alkene reaction
Strong composite seal coat material stress absorption significant effect in 180 DEG C of temperature, has good resistance to elevated temperatures.
Claims (10)
1. a kind of superpower composite seal coat material of highway, including cohere layer material and rubble, it is characterised in that also sprayed including energy-absorbing
Coating material；
Energy-absorbing sprayed coating is made using energy-absorbing sprayed coating material spraying, gluing layer is paved into using cohering layer material and spilling, using rubble
Spill and be paved into rubble and spill laying, described energy-absorbing sprayed coating, gluing layer and rubble spill laying and set gradually from bottom to top；
Described energy-absorbing spraying layer material, is made up of following raw material：Polyurea prepolymer, nano-graphene, chain extender, coupling agent,
Defoamer and filler；
Described polyurea prepolymer, to be made up of following raw material：Isocyanates and amino-compound.
2. the superpower composite seal coat material of highway as claimed in claim 1, it is characterised in that described energy-absorbing spraying layer material
Material, in terms of parts by weight, it is made up of following raw material：Polyurea prepolymer is 100 parts, and nano-graphene is 5~30 parts, chain extender
Be 2 parts for 5~9 parts, coupling agent, defoamer be 2 parts, filler be 3 parts；
Described polyurea prepolymer, in terms of parts by weight, to be made up of following raw material：20~35 parts of isocyanates, amino chemical combination
65~80 parts of thing, the parts by weight sum of raw material is 100 parts.
3. the superpower composite seal coat material of highway as claimed in claim 2, it is characterised in that described energy-absorbing sprayed coating material
Material, in terms of parts by weight, to be made up of following raw material：Polyurea prepolymer is 100 parts, and nano-graphene is 12 parts, chain extender 9
Part, coupling agent are 2 parts, defoamer is 2 parts, and filler is 3 parts；
Described polyurea prepolymer, in terms of parts by weight, to be made up of following raw material：30 parts of isocyanates, amino-compound 70
Part.
4. the superpower composite seal coat of highway as claimed in claim 2, it is characterised in that described isocyanates is isocyanic acid first
Ester, ethyl isocyanate or propyl isocyanate；
Described amino-compound is amine terminated polyether；
Described nano-graphene is the lamellar graphite alkene that thickness is less than 10nm.
Described chain extender is one kind in ethylene glycol, 1,2- propane diols, 1,3- propane diols, 1,4- butanediols, methyl propanediol
Combination of the above；
Described coupling agent is KH550 silane couplers, KH560 silane couplers or KH570 silane couplers；
Described defoamer is polyoxyethylene defoamer；
Described filler is calcium carbonate or titanium dioxide.
5. the superpower composite seal coat material of highway as claimed in claim 2, it is characterised in that described coheres layer material use
Modified emulsifying asphalt.
6. the superpower composite seal coat material of highway as claimed in claim 5, it is characterised in that described modified emulsifying asphalt is
Emulsified asphalt modified with water-epoxy resin, epoxy resin SBS composite modified emulsification asphalts or the composite modified emulsifications of polyurethane-SBS
Pitch.
7. a kind of highway as described in claim 2 to 6 any claim with superpower composite seal coat material be used for Sub-sealing Course or
The construction application of upper sealing.
8. construction application as claimed in claim 7, it is characterised in that construction and application method follows the steps below：
Step 1, highway base course matrix is repaired, flattened, dry and cleaning treatment；
Step 2, isocyanates and amino-compound are mixed according to formula rate, form polyurea prepolymer, be calculated as component A；
Nano-graphene, chain extender, coupling agent, defoamer and filler are mixed according to formula rate, are calculated as B component；
Energy-absorbing spraying layer material is obtained after component A and B component are mixed according to formula rate, energy-absorbing spraying layer material is passed through super
High-pressure spraying machine is sprayed to the highway base course matrix after step 1 is handled, and spraying is conserved after terminating, and is formed and inhaled
Can sprayed coating；
Step 3, paving is spilt on the surface of energy-absorbing sprayed coating and coheres layer material, form gluing layer, while spilling paving and cohering layer material
Paving rubble is spilt, rubble is formed and spills laying.
9. construction application as claimed in claim 7, it is characterised in that described rubble is single particle size rubble；Described list
One Stone uses particle diameter as the single of 2.36~4.75mm, 4.75~9.5mm, 9.5~13.2mm or 9.5~16mm specifications
Stone.
10. construction application as claimed in claim 7, it is characterised in that described highway is used for superpower composite seal coat material
During upper sealing, preventive maintenance measure formation preventive maintenance layer is implemented on the surface that described rubble spills laying；Described prevention
Conservation layer is micro-surface area layer or slurry seal.
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| CN107829344B (en) | 2019-09-20 |
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