CN109881548A - Assembled Heavy Traffic pavement of road paving structure based on composite material - Google Patents
Assembled Heavy Traffic pavement of road paving structure based on composite material Download PDFInfo
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Abstract
The invention discloses a kind of assembled Heavy Traffic pavement of road paving structure based on composite material, belongs to road pavement technical field.The paving structure includes base, its main feature is that making has asphalt adhesive layer of sand, assembled composite structural laminate to substrate top surface from bottom to top, the assembled composite structural laminate is formed by several pieces of composite material road prefabricated section assembly makings, it is bonded between prefabricated section and asphalt adhesive layer of sand by 0.5-1cm emulsified asphalt viscous oil layer, pass through compound polyurethane material before prefabricated section to be bonded, the composite material road prefabricated section is by matrix high viscosity elaterite mixture and compound polyurethane material is prefabricated forms.Compared with prior art, road paving structure thickness of the invention is low, anti-rut behavior is significant, and the construction period is short, it is convenient etc. with good application value to conserve.
Description
Technical field
The present invention relates to field of road, specifically a kind of assembled pavement of road based on composite material is mated formation
Structure.
Background technique
China's expressway design service life is 15 years, pavement structure damage (track, fatigue cracking occurs within usual 10 years
Have become the Major Diseases of China Higher grade highway), it needs periodical overhaul to reconstruct, was calculated according to 10 year overhaul life, every year
300,000,000 tons of waste materials will be generated, huge fund and environmental pressure are caused.In recent years along with harsh load and extreme high/low temperature weather
(such as large longitudinal slope highway, large capacity public transportation lane and bay, port road and harbour are special for special road under the conditions of frequency is existing
With road, heavily loaded deck paving and airfield runway etc.) largely construction, therefore more stringent requirements are proposed for the material of road pavement.
Since asphalt concrete pavement is also easy to produce rut slot under heavy duty or hot conditions, the flatness on road surface is influenced, and
The combustibility of asphalt concrete pavement should not be used in tunnel, gas station and parking lot etc. to the sensibility of temperature and low frequency load
Section solves the problems, such as track often by following two method in the prior art: one, in the pitch of the middle surface layer of bituminous pavement
Anti-rut agent is added in mixture forms Rut resistance layer；Two, cement concrete pavement is directly used.However, the drip of both forms
Green pavement structure is all haveed the shortcomings that respective.In first method, due to various anti-rut agent broad categories, and phase on the market
When major part as the time can generate aging phenomenon, therefore, in winter under low temperature, pitch can be hardened, and show brittleness.If adopted
With the second way, the cement concrete pavement for directly using rigidity bigger, although being capable of providing good anti-rut behavior,
But there is the disadvantages of joint treatment is difficult, maintenance cost is high, noise is big and easily plays dust.In addition, in social fast-developing the present
It, there are dust, noise, a variety of pollutions such as flue gas to be also unfavorable for the suitable of road construction for traditional or current asphalt pavement construction
Benefit expansion.
In order to solve above-mentioned deficiency in the prior art, those skilled in the art have begun trial in bituminous pavement
The advantages of surface layer uses a kind of mode for combining of pitch and cement pavement, takes into account two kinds of road surfaces rigid and flexible, gets rid of simultaneously
The shortcomings that abandoning the two.It is used in the middle surface layer Rut resistance layer of bituminous pavement and pours into the poly- of cement base in Asphalt mix for open-graded friction course
Conjunction object latex, but the poor fluidity of this traditional single cement matrix slurry body, the plumpness of grouting is poor, while needing machine
The auxiliary of tool equipment is in the milk, and construction is inconvenient, time-consuming and laborious to take a lot of work, it is difficult to ensure that the quality of construction, while traditional technology needs
Conditioned time is taken between 3 days to 7 days, open traffic is slow, is unfavorable for the quick reparation in heavily loaded track section.In addition,
Since this material plays the role of Rut resistance for middle surface layer, it is easy to produce layer between upper layer and the material of cutting optimal
Between sliding and layering, substantially reduce its Rut resistance and anti-fatigue performance.
Summary of the invention
Technical assignment of the invention is in view of the above shortcomings of the prior art, to provide a kind of based on composite material assembly type weight
Carry traffic route road paving structure.
Gold tailings of the present invention refer to that ore extracts gold from the waste residue being discharged after concentrate.
Technical assignment of the invention is realized in the following manner: a kind of Heavy Traffic pavement of road based on composite material
Paving structure, including base, its main feature is that making has asphalt adhesive layer of sand, assembled composite structure to substrate top surface from bottom to top
Layer, the assembled composite structural laminate forms by several pieces of composite material road prefabricated section assembly makings, prefabricated section with
It is bonded between asphalt adhesive layer of sand by emulsified asphalt viscous oil layer (preferably 0.5-1cm), passes through polyurethane before prefabricated section
Composite material is bonded, and the composite material road prefabricated section is compound by matrix high viscosity elaterite mixture and polyurethane
It is prefabricated to form.
The base is preferably cement stabilized macadam base, so that upside road structure layer and base have good interlayer
Adhesive property.
Further, the method for prefabricating of the composite material road prefabricated section includes:
A, making is in the milk
The making matrix high viscosity elaterite mixture on the substrate for the emulsified asphalt for spilling paving, to matrix high viscosity elasticity
After asphalt is cooling, filling polyurethane composite material, and remove surface laitance；
B, it forms
After perfusion, through health, cutting, composite material road prefabricated section is obtained.
The making grouting procedure of step a is preferably completed indoors, and at 20-40 DEG C, ground is laid with cement for room temperature control
Concrete, to undertake implementation load.The substrate is preferably metal plate, such as galvanized sheet, plays isolation asphalt and water
The effect on cement concrete ground.
Preferably, removing surface laitance using sweeper, the building stones of exposing surface are deep with the construction for increasing surface
Degree, time control are completed within 30 minutes.
In the molding procedure of step b, conditioned time is preferably 0.5-2 days.The thickness and dress of composite material road prefabricated section
Design thickness with formula composite structural laminate is consistent.Length and width determines that length can according to the actual size situation on road surface
To be 3.5-10m, preferably 3.75m, width can be 3.5-4m, preferably 3.75m.
Further, in composite material road prefabricated section, matrix high viscosity elaterite mixture and polyurethane composite
The weight proportion of material is preferably 75~85:15~25.Especially when matrix high viscosity elaterite mixture and polyurethane are compound
When the weight proportion of material is 78~82:18~28, paving structure can reach optimal anti-rut behavior.
As the structure sheaf for the unique bearing load being set to above base, the thickness of the assembled composite structural laminate
Degree can be 10-20cm, including 10-16cm, preferably 13~16cm, such as 13cm, 14cm, 15cm or 16cm.
The Design Air Voids of matrix high viscosity elaterite mixture are preferably 27~36%.With passing through for each partial size mineral aggregate
Percentage, grading limit be preferably 19mm sieve pore percent of pass be 100%, 16.0mm sieve pore percent of pass be 95%~100%,
13.2mm sieve pore percent of pass is 72%~95%, 9.5mm sieve pore percent of pass is 14%~65%, 4.75mm sieve pore percent of pass is
5%~25%, 2.36mm sieve pore percent of pass are that 5%~15%, 0.6mm sieve pore percent of pass is that 3%~8%, 0.3mm sieve pore passes through
It is 2%~4%, 0.075mm sieve pore percent of pass is 1%~5% that rate, which is 2%~6%, 0.15mm sieve pore percent of pass,.
In order to improve the low-temperature cracking-resistance of composite material, described matrix high viscosity elaterite mixture is preferably using PG points
Grade is the high Viscoelastic Composite modified pitch of 82-22 as bituminous cements, and its viscosity is 2.5~4.5Pa.s, and softening point is big
In 80 DEG C.
Further, in order to increase the interface between matrix high viscosity elaterite mixture and compound polyurethane material
Caking property, can be added appropriate fiber in matrix high viscosity elaterite mixture mix, and the additive amount of fiber is that matrix is high
The 0.3-0.6% of cohesive elastomeric asphalt weight, preferably 0.3-0.4%.The fiber is preferably lignin fibre.
The mix mode of matrix high viscosity elaterite mixture is preferred are as follows: first mixes coarse aggregate and high viscoelastic composite asphalt
It closes, after mix 0.5-1.5min plus miberal powder, continues 0.5~1.5min of mix, it is uniform to add fine aggregate mix, is eventually adding fibre
Tie up 0.5~1.5min of mix.
Preferably, the compound polyurethane material includes portland cement, fine particle modified emulsifying asphalt, gold tail
Mine, polyaminoester emulsion and water, portland cement, fine particle modified emulsifying asphalt, gold tailings, polyaminoester emulsion and water weight
Amount is than being (25~35): (10~25): (20~30): (3~5): (15~22), preferably (28~32): (15~22): (23
~27): (3.5~4.5): (18~22).
Fine particle modified emulsifying asphalt (solid forms emulsified asphalt) generates emulsion process after meeting water, can preferably promote
Adhesive effect between matrix high viscosity elaterite mixture and perfusion materia, promotes the interface of two kinds of different materials preferably
It is coupled, and the addition of gold tailings, the mobility of compound polyurethane material can be further increased, reinforced composite structure layer
Intensity.
The partial size of the gold tailings is preferably 120-150 mesh, and optimum grain-diameter is 130-140 mesh.
Preferably, mixed liquor of the polyaminoester emulsion for isocyanates and polyalcohol, isocyanates and polyalcohol
Weight ratio is 1:(0.9-1.1).The isocyanates is preferably methyl diphenylene diisocyanate；Polyalcohol is preferably polyether-type
Polyalcohol.
Further, the compound polyurethane material can also include swelling agent, water-reducing agent, air entraining agent, defoaming agent, alkalinity
Miberal powder and stabilizer, the weight ratio of swelling agent, water-reducing agent, air entraining agent, defoaming agent, alkaline miberal powder, stabilizer and portland cement
For (3~5): (0.2~0.4): (0.2~0.5): (0.2~1.5): (10~25): (0.003~0.006): (25~35),
Preferably (3.5~4.5): (0.25~0.35): (0.25~0.35): (0.5~1.2): (15~22): (0.004~
0.006): (28~32).
The swelling agent is preferably UEA type swelling agent；
The water-reducing agent is solid early-strength ethers polycarboxylic acids dehydragent；
The air entraining agent optimizing alkyl arene-sulfonic acids class air entraining agent；
The defoaming agent is preferably polyethers in solid form modified polyorganosiloxane class defoaming agent；
The alkalinity miberal powder is preferably basalt powder.
The stabilizer is preferably hydroxymethyl propylcellulose ethers stabilizer.
Further, the asphalt adhesive layer of sand is formed by asphaltmastic making, and thickness is preferably 2-4cm.
The Air Voids of Asphalt Mixtures of asphalt adhesive layer of sand is preferably 0~3%, and void in mineral aggregate is preferably 15~17, pitch
Saturation degree be preferably 70~85, Marshall stability be not less than 10KN.The grading limit of asphalt is logical for 9.5mm sieve pore
It is 90%~100%, 2.36mm sieve pore percent of pass is 65%~85% that cross rate, which be 100%, 4.75mm sieve pore percent of pass,
1.18mm sieve pore percent of pass 42%~65%, 0.6mm sieve pore percent of pass are that 26%~46%, 0.3mm sieve pore percent of pass is 15%
~32%, 0.15mm sieve pore percent of pass are that 10%~21%, 0.075mm sieve pore percent of pass is 7%~12%；
Bituminous cements uses low grade pitch (such as No. 30 pitches), and needle penetration is 15~35, and softening point is greater than 78 degree.
Paving method the present invention is based on the assembled Heavy Traffic pavement of road paving structure of composite material includes:
A, in base's making asphalt adhesive layer of sand；
B, with composite material road prefabricated section making assembled composite structural laminate:
Composite material road prefabricated section is laid on asphalt adhesive layer of sand (or emulsified asphalt viscous oil layer) surface with hanging device,
Gap between the prefabricated section of adjacent composites road surface carries out cementation of fissures processing using compound polyurethane material, guarantee prefabricated chunk it
Between secure bond.
Adhesive property between each structure sheaf in order to further increase, can also be between substrate top surface and asphalt adhesive sand bed
And/or emulsified asphalt viscous oil layer is set between asphalt adhesive sand bed and assembled composite structural laminate, form upper and lower surface layer good
Good connection.
Compared with prior art, the fabricated Heavy Traffic pavement of road paving structure of the invention based on composite material
With it is following prominent ground the utility model has the advantages that
(1) compound polyurethane material (perfusion materia) belongs to Self-leveling, has good permeability, without vibrating, filling rate
It can reach 95% or more, perfusion depth is far longer than traditional technology perfusion depth, to realize the present invention up to 18cm or more
Paving structure provides advantageous guarantee；
(2) high osmosis of compound polyurethane material (perfusion materia) cooperates specific gradation design, makes composite wood of the present invention
Expect structure sheaf can directly making in base, form a kind of pavement structure of globality, avoid high temperature, low temperature and heavy duty make
Sliding, the layering of the interlayer of traditional technology under, ensure that the globality of pavement structure, while than traditional Rut resistance road surface
The thickness of structure is thinned 13cm, has saved a large amount of building stones, and economic and social benefit is significant；
(3) composite structural laminate 3h intensity can reach 20Mpa or more, easy for construction, and 1-3h can after construction
With direct open to traffic.The road surface later period basic ungauged regions of this compound material simultaneously, avoid cement concrete pavement
Temperature contracting and drying shrinkage generation.
(4) gold tailings are extracted gold from the waste residue being discharged after concentrate by ore, on the one hand enhance mixture
Intensity, still further aspect can substitute fine sand, solve the problems, such as industrial waste.
(5) polyaminoester emulsion, can with the bonding between effective solution asphalt material and cement-based material interface,
High temperature Rut resistance and the low-temperature cracking-resistance enhancing for keeping it whole.The type of building stones can be made to be not limited solely to lime simultaneously
Rock, granite and griotte can be used in highway construction, solve the problems, such as that building stones are nervous at this stage；
(6) it is provided with asphalt adhesive layer of sand, the reflection crack that can effectively prevent base develops upwards, destroys composite wood
The bed of material, asphalt adhesive layer of sand play the buffer function of a part, while playing the role of main levelling, make prefabricated composite wood
Flitch is more steady, prevents the stress of prefabricated board from concentrating.
(7) assembled pavement structure can effectively shorten the construction time, can after there is disease simultaneously for prefabricated section
Quickly to cut off damaged prefabricated section, it is substituted for new road surface prefabricated section, thus realize the rapid curing on road surface, it is quickly extensive
It reestablishes diplomatic relations logical.
(8) assembled road surface is successfully moved to bituminous mixture part in factory, eliminates asphalt pavement construction
There are dust, noise, a variety of pollutions such as flue gas are a kind of environmentally protective technologies, have significant social benefit.
Detailed description of the invention
Attached drawing 1 is assembled Heavy Traffic pavement of road paving structure schematic diagram of the embodiment two based on composite material.
Specific embodiment
Referring to Figure of description with specific embodiment to the assembled Heavy Traffic road of the invention based on composite material
Road paving structure is described in detail below.
Embodiment one:
[preparation of composite material road prefabricated section]
In the workshop that ground is laid with cement concrete, room temperature control completes composite material under the conditions of 25-35 DEG C
The prefabricated specific method for prefabricating of road surface prefabricated section is as follows:
1. making is in the milk
It is laid with galvanized sheet on the 1.1 cement concrete ground inside workshop, isolation asphalt is played and cement is mixed
The effect in solidifying soil face；
1.2 spill paving emulsified asphalt on galvanized sheet；
1.3 making matrix high viscosity elaterite mixtures, after matrix high viscosity elaterite mixture is cooling, perfusion
Compound polyurethane material.Described matrix high viscosity elaterite mixture and the weight proportion of the compound polyurethane material are
80%:20%.
1.3.1 matrix high viscosity elaterite mixture
Asphalt mixture design voidage is 31%.
For formate gradation composition with each partial size mineral aggregate by standard size sieve pore percentage, 19mm sieve pore percent of pass is 100%,
16.0mm sieve pore percent of pass is 97.4%, 13.2mm sieve pore percent of pass is 76.7%, 9.5mm sieve pore percent of pass is 38.8%,
It is 8.7%, 0.6mm sieve pore percent of pass is 5.4%, 0.3mm that 4.75mm sieve pore percent of pass, which is 10.6%, 2.36mm sieve pore percent of pass,
It is 3.9%, 0.075mm sieve pore percent of pass is 3.3% that sieve pore percent of pass, which is 4.2%, 0.15mm sieve pore percent of pass,.
Bituminous cements is classified as the high Viscoelastic Composite modified pitch of 82-22 using PG, viscosity 3.5Pa.s, soft
Changing point is 88 DEG C, and dosage is the 4.2% of matrix high viscosity elaterite mixture weight, and the additive amount of fiber is that matrix is high
The 0.35% of cohesive elastomeric asphalt weight.
The blending method of matrix high viscosity elaterite mixture:
The coarse aggregate basalt particle and bituminous cements mix 1min for being first 10-15mm and 5-10mm by granularity, then
Again plus miberal powder mix 0.5min, it is uniform to mix to add the fine aggregate basalt mix 1.5min that granularity is 0-3mm, finally plus
Enter fiber mix 1min, total mix 4min.
Wherein, the weight ratio of 10-15mm coarse aggregate, 5-10mm coarse aggregate, 0-3mm fine aggregate and miberal powder is 75:15:8:2；
Its dosage of fiber is the 0.35% of matrix high viscosity elaterite mixture weight.
1.3.2 compound polyurethane material
Compound polyurethane material by ordinary portland cement, fine particle modified emulsifying asphalt, gold tailings (140 mesh),
Polyaminoester emulsion, UEA type swelling agent, early-strength ethers polycarboxylic acids dehydragent, alkylated aromatic sulfonic acid class air entraining agent, polyethers in solid form
Modified polyorganosiloxane class defoaming agent, basalt miberal powder, hydroxymethyl propylcellulose ethers stabilizer and water mix form, each object
The weight proportion of matter is 30:20:25:4:4:0.3:0.3:1:20:0.005:20.
Polyaminoester emulsion is the mixed liquor of isocyanates and polyalcohol, and the weight ratio of isocyanates and polyalcohol is 1:1.
After 1.4 perfusion materias are perfused, the laitance on surface is removed with sweeper, time control is complete within 30 minutes
At the building stones of exposing surface, to increase the construction depth on surface.
2. composite material road prefabricated section is cut
After perfusion, in room conditions after health 1 day, using cutting machine, be cut into 3.75m × 3.75m ×
The prefabricated section of 0.16m.
Embodiment two:
[paving structure]
As shown in Fig. 1, the Heavy Traffic pavement of road paving structure of the present embodiment by base 1, asphalt adhesive layer of sand 2 and is answered
Condensation material structure sheaf 3 is constituted.Asphalt adhesive layer of sand 2, composite structural laminate 3 from bottom to top making in 1 top surface of base.
1. base 1 uses cement stabilized macadam base.
2. asphalt adhesive layer of sand 2 with a thickness of 3cm, be laid with using asphaltmastic.
Asphaltmastic mixture gap rate is 2.8%, void in mineral aggregate 17.2%, and the saturation degree of pitch is 82.6%,
Marshall stability is not less than 10kN.
The formate gradation composition of asphaltmastic mixture, by standard size sieve pore percentage, is 9.5mm with each partial size mineral aggregate
Sieve pore percent of pass be 100%, 4.75mm sieve pore percent of pass be 98.5%, 2.36mm sieve pore percent of pass be 74.7%, 1.18mm sieve
Hole percent of pass 48.3%, 0.6mm sieve pore percent of pass are that 28.2%, 0.3mm sieve pore percent of pass is that 17.2%, 0.15mm sieve pore is logical
It is 11.2% that cross rate, which be 14.6%, 0.075mm sieve pore percent of pass,；
Asphaltmastic cementitious matter uses No. 30 pitches, needle penetration 31, and softening point is 88 degree, asphalt content 7.2%.
3. composite structural laminate 3 with a thickness of 14cm, the composite material road as made from several pieces of embodiments one is prefabricated
The assembled making of block 31 forms.
Bonded between prefabricated section 31 and asphalt adhesive layer of sand by 0.5-1cm emulsified asphalt viscous oil layer, prefabricated section 31 it
It is preceding to be bonded by compound polyurethane material 32.
[paving method]
A, it is clean to clean 1 surface of base, after surface is dried, spread emulsified asphalt or heated bitumen form upper and lower surface layer
Good connection.
B, making asphalt adhesive layer of sand, and the emulsified asphalt viscous oil layer of one layer of 0.5-1cm is spread in asphaltmastic layer surface.
C, several prefabricated section assembly are laid on emulsified asphalt viscous oil layer surface with hanging device.
D, after assembled, the seam between prefabricated section is irrigated with compound polyurethane material and joint filling, solidification 2-3 are small
When, road can realize passage.
[performance test]
Test object is Heavy Traffic pavement of road paving structure described in embodiment two.
Object is compareed using the pavement structure of current strength cement-based grouting material formation (by one described matrix high viscosity bullet of embodiment
Property asphalt and the filling material of ordinary cement are laid with).
I. conditioned time is carried out with standard method (highway engineering cement and cement concrete testing regulations T0553-2005)
And strength detection, obtain conditioned time and strength relationship.
It can be seen from obtained conditioned time and strength relationship under the conditions of 20 DEG C, 40 DEG C, composite structural laminate is supported
Intensity can reach 15MPa and 25MPa after 3 hours raw.Construction efficiency, in terms of, be significantly better than cement grout material structure
The construction efficiency and intensity of layer.
II. measured performance parameter is carried out to two road structure of embodiment with the universal method of pavement performance evaluation, measures number
According to being shown in Table 1.
The pavement performance index of ground surface material has been perfused in table 1
Claims (10)
1. being based on composite material assembly type Heavy Traffic pavement of road paving structure, including base, it is characterised in that: substrate top surface
Making has asphalt adhesive layer of sand, assembled composite structural laminate from bottom to top, if the assembled composite structural laminate by
Dry block composite material road prefabricated section assembly making forms, between prefabricated section and asphalt adhesive layer of sand by emulsified asphalt viscous oil layer into
Row bonding, prefabricated section pass through compound polyurethane material before and are bonded, and the composite material road prefabricated section is glued by matrix height
Property elaterite mixture and compound polyurethane material is prefabricated forms.
2. according to claim 1 be based on composite material assembly type pavement of road paving structure, it is characterised in that: composite wood
The method for prefabricating of material tube face prefabricated section includes:
A, making is in the milk
The making matrix high viscosity elaterite mixture on the substrate for the emulsified asphalt for spilling paving, to matrix high viscosity elaterite
After mixture is cooling, filling polyurethane composite material, and remove surface laitance；
B, it forms
After perfusion, through health, cutting, composite material road prefabricated section is obtained.
3. according to claim 1 or 2 be based on composite material assembly type pavement of road paving structure, it is characterised in that: multiple
In the prefabricated section of condensation material road surface, the weight proportion of matrix high viscosity elaterite mixture and compound polyurethane material is 75~
85:15~25.
4. according to claim 3 be based on composite material assembly type pavement of road paving structure, it is characterised in that: assembled
Composite structural laminate with a thickness of 10~16cm；The Design Air Voids of matrix high viscosity elaterite mixture be 27~
36%.
5. the assembled pavement of road paving structure according to claim 4 based on composite material, it is characterised in that: matrix
The grading limit of high viscosity elaterite mixture be 19mm sieve pore percent of pass be 100%, 16.0mm sieve pore percent of pass be 95%
~100%, 13.2mm sieve pore percent of pass is 72%~95%, 9.5mm sieve pore percent of pass is 14%~65%, 4.75mm sieve pore is logical
Cross rate be 5%~25%, 2.36mm sieve pore percent of pass be 5%~15%, 0.6mm sieve pore percent of pass be 3%~8%, 0.3mm sieve
It is 2%~4%, 0.075mm sieve pore percent of pass is 1%~5% that hole percent of pass, which is 2%~6%, 0.15mm sieve pore percent of pass,.
6. the assembled pavement of road paving structure according to claim 4 based on composite material, it is characterised in that: matrix
High viscosity elaterite mixture is classified as the high Viscoelastic Composite modified pitch of 82-22 as bituminous cements, height using PG
The viscosity of Viscoelastic Composite modified pitch is 2.5~4.5Pa.s, and softening point is greater than 80 DEG C.
7. the assembled pavement of road paving structure according to claim 6 based on composite material, it is characterised in that: matrix
Appropriate fiber is added in mix for high viscosity elaterite mixture, and the additive amount of fiber is the mixing of matrix high viscosity elaterite
Expect the 0.3-0.6% of weight.
8. the assembled pavement of road paving structure according to claim 1 or 2 based on composite material, it is characterised in that:
Compound polyurethane material includes portland cement, fine particle modified emulsifying asphalt, gold tailings, polyaminoester emulsion and water, silicon
Acid salt cement, fine particle modified emulsifying asphalt, gold tailings, polyaminoester emulsion and water weight ratio be (25~35): (10~
25): (20~30): (3~5): (15~22),
The polyaminoester emulsion is the mixed liquor of isocyanates and polyalcohol, and the weight ratio of isocyanates and polyalcohol is 1:
(0.9-1.1)。
9. the assembled pavement of road paving structure according to claim 8 based on composite material, it is characterised in that: poly- ammonia
Ester composite material further includes that swelling agent, water-reducing agent, air entraining agent, defoaming agent, alkaline miberal powder and stabilizer, swelling agent, draw water-reducing agent
Gas agent, defoaming agent, alkaline miberal powder, stabilizer and portland cement weight ratio be (3~5): (0.2~0.4): (0.2~
0.5): (0.2~1.5): (10~25): (0.003~0.006): (25~35).
10. the Heavy Traffic pavement of road paving structure according to claim 2 based on composite material, it is characterised in that:
Surface laitance, the building stones of exposing surface are removed using sweeper in step a, time control is completed within 30 minutes.
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