CN100572668C - A kind of half-flexible water drainage skid-free noise-reducing road surface pavement structure - Google Patents
A kind of half-flexible water drainage skid-free noise-reducing road surface pavement structure Download PDFInfo
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Abstract
The present invention relates to a kind of paving structure of road surface.A kind of half-flexible water drainage skid-free noise-reducing road surface pavement structure, it comprises semi-rigid type base, it is characterized in that the semi-rigid type base upper berth is equipped with modified emulsified asphalt slurry seal, be perfused with half-flexible pavement material structure layer on the modified emulsified asphalt slurry seal, spreading has the high-viscosity modified asphalt tack coat on the half-flexible pavement material structure layer, and water drainage skid noise reduction wearing layer has paved on the high-viscosity modified asphalt tack coat.This road paving structure high temperature stability performance is good, has draining, noise reduction, antiskid function, can effectively prevent the damage by water evil, long service life.
Description
Technical field
The invention belongs to the Materials Science and Engineering field, be specifically related to a kind of paving structure of road surface.
Background technology
Along with development and national economy, the high-grade highway construction of China, particularly expressway construction is advanced by leaps and bounds.Owing to the climatic environment of complexity and abominable reasons such as transportation condition, many high-grade highways come into operation soon, early stage damage has in various degree just appearred, main diseases such as the bad and cracking of rut, damage by water occur as asphalt concrete pavement, disconnected plate appears in cement concrete pavement, ftracture, come to nothing and damage such as purt mud.Keep in repair though dropped into substantial contribution every year, often mend very and mend, not only the later period maintenance investment is big, and has influenced the traffic capacity of traffic and the comfortableness of driving, causes harmful effect socially.In addition, along with the quickening of Urbanization in China and the raising of people's living standard, the function of use of road pavement has also proposed very high requirement, such as the safety of travelling, comfortableness and environment friendly etc.How can provide a kind of technical ability to satisfy pavement performance and endurance quality, the novel road surface structure that can satisfy function of use has again become present research focus.
Asphalt concrete material and cement concrete material are two kinds of main ground surface materials of high-grade highway, and these two kinds of typical ground surface materials have been widely used in the road structure of urban road and high-grade highway.But,, cause the intensity of asphalt pavement structural layer and rheological characteristic to be acted upon by temperature changes very big because bituminous material is the very strong material of a kind of response to temperature.During summer high temperature, the reduction of bituminous material viscosity causes that cohesive force weakens between aggregate particle, if under horizontal force action, very easily make to produce between the bituminous mixture particle and slide and displacement, the shear deformation breaks down that causes asphalt pavement structural layer to form wave, gather around bag and so on has reduced the comfortableness of driving a vehicle.On the high-grade highway of canalized traffic, asphalt concrete pavement is easy to generate excessive plastic strain and forms rut.In the winter time during low temperature, though the intensity of asphalt concrete pavement structural meterials increases to some extent, because of the raising non-deformability of bituminous material viscosity greatly reduces, show fragility, the result causes the asphalt pavement structural layer cracking.Characteristics such as Concrete Pavement Materials has that non-deformability is strong, long service life and routine servicing expense are low produce deficiencies such as repairing difficulty after the disease but this road structure has driving comfort difference and road structure.
In recent years, domestic cement mortar grouting formula semi-rigid pavement is studied, and carried out the laying of test section.The good characteristic separately of these two kinds of typical ground surface materials is given full play on this kind road surface simultaneously, can solve the rut, damage by water of asphalt concrete pavement bad and cracking and cement concrete pavement disconnected plate, ftracture, come to nothing and disease such as purt mud.But because this kind road surface all is laid on the wearing layer on road surface, exist following problem at present: 1) half of the preparation flexible general modulus of resilience is bigger, causes the road surface rigidity to increase, and the road surface is easy to crack; 2) rigidity on road surface increases, and planeness descends, and has influenced the comfortableness of driving; 3) aesthetic property on road surface is subjected to very big influence.
Therefore, invent a kind of half-flexible pavement material with suitable mechanical property, and with this half-flexible pavement material as deck, the combined type road paving structure that exploitation has draining, noise reduction, function wearing layer such as anti-skidding has important practical significance.
Summary of the invention
The object of the present invention is to provide a kind of half-flexible water drainage skid-free noise-reducing road surface pavement structure, this road paving structure high temperature stability performance is good, has draining, noise reduction, antiskid function, can effectively prevent the damage by water evil, long service life.
To achieve these goals, technical scheme of the present invention is: a kind of half-flexible water drainage skid-free noise-reducing road surface pavement structure, it comprises semi-rigid type base, it is characterized in that the semi-rigid type base upper berth is equipped with modified emulsified asphalt slurry seal, be perfused with half-flexible pavement material structure layer on the modified emulsified asphalt slurry seal, spreading has the high-viscosity modified asphalt tack coat on the half-flexible pavement material structure layer, and water drainage skid noise reduction wearing layer has paved on the high-viscosity modified asphalt tack coat.
Mating formation after described modified emulsified asphalt slurry seal is mixed and stirred by following raw material forms, and each parts by weight of raw materials is: a) mineral aggregate: 100 parts; B) mulseal: 15 parts; Wherein mineral aggregate is by gathering materials and filler is formed, and the mass ratio that gathers materials with filler is 100: 11.1; Gathering materials is basalt or diabase, and filler is the limestone breeze, and mulseal is the SBR modified emulsifying asphalt.
The thickness of described modified emulsified asphalt slurry seal is 0.5～1.0cm.
The thickness of described half-flexible pavement material structure layer is 10～12cm, and it is to form on the modified emulsified asphalt slurry seal polymer-modified cement-based grouting agent being poured on the macrovoid bituminous mixture parent;
Polymer-modified cement-based grouting agent is made up of following raw material, and each parts by weight of raw materials is: a) cement: 100 parts; B) flyash: 50-150 part; C) mulseal: 50-160 part; D) expansion agent: 30-70 part; E) water reducing agent: 0.5-5 part; F) sand: 0-80 part; G) water: 0-50 part.
Described cement is strong 32.5,42.5 or 52.5 portland cements morning, also can be common 32.5,42.5,52.5 portland cements; 32.5,42.5,52.5 slag cements; 32.5,42.5,52.5 pulverized fuel ash cements; Flyash is I level or II level flyash.
Described mulseal splits or splits slowly the type mulseal in being, quality solid content 55-72% can be nonionic, cationic or anionic.
Described expansion agent is a UEA plain edition expansion agent; Described gas tracting subtractive agent is based water reducer or polycarboxylate water-reducer for how.
Described sand is common thin river sand, and fineness modulus is 1.9-2.2;
Macrovoid bituminous mixture parent is made up of following raw material, and each raw material accounts for weight portion and is: a) mineral aggregate: 100 parts; B) pitch: 2.5-4.0 part; Described mineral aggregate is by gathering materials and filler is formed, and the mass ratio that gathers materials with filler is 100: 2.0～6.4, gathers materials that to select basalt or diabase, filler for use be the limestone breeze, and the nominal maximum aggregate size of mineral aggregate is 20mm; Pitch is heavy traffic paving asphalt or SBR modified bitumen or SBS modified bitumen or PE modified bitumen.
The material of described high-viscosity modified asphalt tack coat is a high-viscosity modified asphalt, and high-viscosity modified asphalt is made up of styrene butadiene styrene block copolymer (SBS) (SBS), activating rubber powder, compatible resin, antioxidant and matrix pitch; The mass ratio of matrix pitch, styrene butadiene styrene block copolymer (SBS), activating rubber powder, compatible resin, antioxidant is 100: 7.4～14.5: 2.2～7.6: 2.4～6.7: 0.2～0.5; Wherein, compatible resin is rosin glycerol resin, terpene resin or Petropols, and antioxidant is lead, zinc, carbon black, calcium salt or amine, and matrix pitch is selected AH-70 heavy traffic asphaltum or AH-90 heavy traffic asphaltum for use.
The high-viscosity modified asphalt spreading amount is 0.6～0.8L/m
2
Water drainage skid noise reduction wearing layer material is the macrovoid bituminous concrete; The macrovoid bituminous concrete is by mineral aggregate, high-viscosity modified asphalt and fibrous, and mineral aggregate, high-viscosity modified asphalt, quality of fiber ratio are 100: 4.0～6.0: 0～0.6; Described mineral aggregate is by gathering materials and filler is formed, and the mass ratio that gathers materials with filler is 100: 2.0～6.4, and gathering materials is basalt or diabase, and filler is the limestone breeze, and the nominal maximum aggregate size of mineral aggregate is 13mm.
High-viscosity modified asphalt is made up of styrene butadiene styrene block copolymer (SBS) (SBS), activating rubber powder, compatible resin, antioxidant and matrix pitch; The mass ratio of matrix pitch, styrene butadiene styrene block copolymer (SBS), activating rubber powder, compatible resin, antioxidant is 100: 7.4～14.5: 2.2～7.6: 2.4～6.7: 0.2～0.5; Wherein, compatible resin is rosin glycerol resin, terpene resin or Petropols, and antioxidant is lead, zinc, carbon black, calcium salt or amine, and matrix pitch is selected AH-70 heavy traffic asphaltum or AH-90 heavy traffic asphaltum for use.
The big lignin fibre of fiber or polyester fiber or mineral fibers.
The mineral aggregate gradation scope of design sees Table 1:
The mineral aggregate gradation scope of table 1 draining, anti-skidding, noise reduction wearing layer
The mineral aggregate gradation scope of table 2 macrovoid bituminous mixture parent
The mineral aggregate gradation scope of table 3 modified emulsified asphalt slurry seal
The technical indicator of main material of the present invention is as follows:
The performance indications of table 4 high-viscosity modified asphalt
Table 5 water drainage skid noise reduction performance of asphalt mixture index
Table 6 half-flexible pavement material performance index
The present invention has following characteristics: 1) adopt the deck of the half-flexible pavement material of high-modulus as the road surface, have superior high temperature stability performance, can significantly reduce rut, pass, gather around the generation of diseases such as bag.Simultaneously,, can effectively prevent the damage by water evil, strengthen water stability because after pouring into polymer-modified cement-based grouting agent, half flexible structure layer is very fine and close; 2) draining, anti-skidding, noise reduction wearing layer employing macrovoid bituminous concrete can improve the safety of rainy day high speed traveling, and effectively reduce noise; 3) adopt the adhesives of high-viscosity modified asphalt, not only can play good bonding effect, and can stop the infiltration of water, play the effect of protection road surface structare layer as road surface structare layer and wearing layer; 4) adopt the articulamentum of modified emulsified asphalt slurry seal, not only can prevent the infiltration of sealing, effectively protect basic unit, and can stop and delay the base course reflection crack and expand to surface layer as semi-rigid type base and top course; 5) based on These characteristics, road structure will keep its function of use in its design period, only need regularly wearing layer to be carried out maintenance and overlay, can keep the functional performance on road surface, prolong the application life of whole road structure.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Among the figure: 1-semi-rigid type base, 2-modified emulsified asphalt slurry seal, 3-half-flexible pavement material structure layer, 4-high-viscosity modified asphalt tack coat, 5-water drainage skid noise reduction wearing layer.
The specific embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to the following examples.
Embodiment 1:
One, the preparation of material:
(1), the preparation of water drainage skid noise reduction wearing layer (draining, anti-skidding, noise reduction wearing layer) material:
(1) preparation of high-viscosity modified asphalt: high-viscosity modified asphalt is made up of styrene butadiene styrene block copolymer (SBS) (SBS), activating rubber powder, compatible resin, antioxidant and matrix pitch; The mass ratio of matrix pitch, styrene butadiene styrene block copolymer (SBS), activating rubber powder, compatible resin, antioxidant is 100: 10.6: 3.7: 2.5: 03; Wherein, compatible resin is selected rosin glycerol resin for use, and antioxidant is selected carbon black for use, and matrix pitch is selected the AH-70 heavy traffic asphaltum for use; Concrete preparation process is: will mix styrene butadiene styrene block copolymer (SBS) and compatible resin after the matrix pitch fusing, under 170 ℃ of temperature, stirred 18 minutes, adopted emulsify at a high speed cutter high speed shear then 350 minutes, 5500 rev/mins of rotating speeds, left standstill 17 minutes at 140 ℃ then, make its abundant swelling, add activating rubber powder and antioxidant, high speed shear is 25 minutes again, promptly makes 60 ℃ of viscosity 〉=70000Pa.s high-viscosity modified asphalt;
(2) mineral aggregate gradation:
Mineral aggregate is by gathering materials and filler is formed, and the mass ratio that gathers materials with filler is 100: 3.2, gathers materials and selects diabase for use, and filler is the limestone breeze, and the maximum particle diameter of mineral aggregate is 16mm, and the mineral aggregate gradation scope of design sees Table 7:
The grading limit of table 7 mineral aggregate
(3) preparation of macrovoid bituminous concrete:
Choosing of raw material: the macrovoid bituminous concrete is by mineral aggregate, high-viscosity modified asphalt and fibrous, and mineral aggregate, high-viscosity modified asphalt, quality of fiber ratio are 100: 5.1: 0.2; Described fiber is selected polyester fiber for use;
Preparation: mineral aggregate, high-viscosity modified asphalt and fiber are mixed stirring, and temperature is 180 ℃, and drop temperature is 180 ℃, and void content scope 23.4% gets the macrovoid bituminous concrete.
(2), the preparation of described high-viscosity modified asphalt bonding layer material:
The material of high-viscosity modified asphalt tack coat is a high-viscosity modified asphalt, and high-viscosity modified asphalt is made up of styrene butadiene styrene block copolymer (SBS) (SBS), activating rubber powder, compatible resin, antioxidant and matrix pitch; The mass ratio of matrix pitch, styrene butadiene styrene block copolymer (SBS), activating rubber powder, compatible resin, antioxidant is 100: 10: 5: 4: 0.3; Wherein, compatible resin is Petropols, and antioxidant is a calcium salt, and matrix pitch is selected the AH-70 heavy traffic asphaltum for use.
(3), the preparation of half-flexible pavement material:
(1) preparation of polymer-modified cement-based grouting agent:
Polymer-modified cement-based grouting agent is made up of following raw material, and each parts by weight of raw materials is: a) cement: 100 parts; B) flyash: 100 parts; C) mulseal: 100 parts; D) expansion agent: 50 parts; E) water reducing agent: 2 parts; F) sand: 20 parts; G) water: 20 parts.
Described cement is 32.5,42.5 or 52.5 slag cements; Flyash is I level flyash.
Mulseal splits the type mulseal in being, quality solid content 55-72%.
Described expansion agent is a UEA plain edition expansion agent; Described gas tracting subtractive agent is a polycarboxylate water-reducer.
Described sand is common thin river sand, and fineness modulus is 1.9-2.2.
Earlier with solid raw material (cement, flyash, expansion agent, water reducing agent, sand) in proportion weighing good after, add the dry mixing 15-50 of mixer elder generation second together, add mulseal and water then and stir 30-120 second again, must polymer-modified cement-based grouting agent.
Another preparation method of above-mentioned polymer-modified cement-based grouting agent be all raw material according to routine weighing good after, add mixer together and stir 30-300 second simultaneously.
(2) preparation of macrovoid bituminous mixture parent:
Macrovoid bituminous mixture parent is made up of following material, and each raw material accounts for weight portion and is: a) mineral aggregate: 100 parts; B) pitch: 3.0 parts; Mineral aggregate is by gathering materials and filler is formed, and the mass ratio that gathers materials with filler is 100: 3.2, gathers materials and selects limestone for use, and filler is the limestone breeze, and the mineral aggregate gradation scope of design sees Table 9:
The mineral aggregate formate gradation composition of table 8 macrovoid bituminous mixture parent
Pitch is selected the SBS modified bitumen for use, and bitumen aggregate ratio is 3.0%.
(3) performance of half-flexible pavement material
The performance indications of table 9 half-flexible pavement material
(4), modified emulsified asphalt slurry seal material:
The modified emulsified asphalt slurry seal material is made up of following raw material, and each raw material accounts for weight portion and is: a) mineral aggregate: 100 parts; B) mulseal: 15.0 parts.
Described mineral aggregate is by gathering materials and filler is formed, and the mass ratio that gathers materials with filler is 100: 11.1, gathers materials that to select basalt or diabase, filler for use be the limestone breeze, and the mineral aggregate gradation scope of design sees Table 11:
Adopting mulseal is the SBR modified emulsifying asphalt.
The mineral aggregate gradation scope of table 11 modified emulsified asphalt slurry seal
(5), the preparation of semi-rigid type base:
Semi-rigid type base is made up of following raw material, and each raw material accounts for weight portion and is: a) mineral aggregate: 100 parts; B) cement: 5 parts; C) water: 5 parts.
Described mineral aggregate can be limestone or granite, and mineral aggregate gradation sees Table 12:
Table 12 semi-rigid type base mineral aggregate gradation
Two, paving process (as shown in Figure 1):
1) the modified emulsified asphalt slurry seal material that paves on treated semi-rigid type base 1 forms modified emulsified asphalt slurry seal 2, and the thickness of modified emulsified asphalt slurry seal 2 is 0.8cm, and construction technology is with generally slurry seal and little table prescribing method are identical;
2) the macrovoid bituminous mixture parent that paves on modified emulsified asphalt slurry seal 2 is to guarantee void content and intercommunicating pore structure, rolls and should take the omnidistance static pressure of steel wheel in the process, and roll number of times and must not surpass 3 times, and pavement thickness is 10cm;
After treating the cooling of macrovoid bituminous mixture parent, polymer-modified cement-based grouting agent is poured on the macrovoid bituminous mixture parent terrain, pushes till the hole of macrovoid bituminous mixture parent terrain fills up with vulcanite scraper, then with its strickling; Get half-flexible pavement material structure layer 3;
3) maintenance is after 7 days, and heat is spread high-viscosity modified asphalt and formed high-viscosity modified asphalt tack coat 4 (as the adhesive linkages that discharge water) on half-flexible pavement material structure layer 3, and spreading amount is 0.7L/m2.
4) the macrovoid bituminous concrete that then paves on high-viscosity modified asphalt tack coat 4 forms draining, anti-skidding, noise reduction wearing layer 5, and thickness is 3～4cm; Roll whole process using steel wheel static pressure in the process, degree of compaction reaches 98～100% and is advisable.
Embodiment 2:
One, the preparation of material:
(1) semi-rigid type base is made up of following raw material, and each raw material accounts for weight portion and is: a) mineral aggregate: 100 parts; B) cement: 5 parts; C) water: 5 parts.
Described mineral aggregate can be limestone or granite, and mineral aggregate gradation sees Table 12.
(2), modified emulsified asphalt slurry seal material:
Mating formation after modified emulsified asphalt slurry seal is mixed and stirred by following raw material forms, and each parts by weight of raw materials is: a) mineral aggregate: 100 parts; B) mulseal: 15 parts; Wherein mineral aggregate is by gathering materials and filler is formed, and the mass ratio that gathers materials with filler is 100: 11.1; Gathering materials is that basalt, filler are the limestone breeze, and mulseal is the SBR modified emulsifying asphalt.
(3), half-flexible pavement material structure layer forms on the modified emulsified asphalt slurry seal polymer-modified cement-based grouting agent being poured on the macrovoid bituminous mixture parent;
Polymer-modified cement-based grouting agent is made up of following raw material, and each parts by weight of raw materials is: a) cement: 100 parts; B) flyash: 50 parts; C) mulseal: 50 parts; D) expansion agent: 30 parts; E) water reducing agent: 0.5 part; F) sand: 1 part; G) water: 1 part.
Described cement is strong 32.5,42.5 or 52.5 portland cements morning; Flyash is I level flyash.
Described mulseal splits the type mulseal in being, quality solid content 55-72%.
Described expansion agent is a UEA plain edition expansion agent; Described gas tracting subtractive agent is the FND-1 water reducing agent.
Described sand is common thin river sand, and fineness modulus is 1.9-2.2;
Macrovoid bituminous mixture parent is made up of following raw material, and each raw material accounts for weight portion and is: a) mineral aggregate: 100 parts; B) pitch: 2.5 parts; Described mineral aggregate is by gathering materials and filler is formed, and the mass ratio that gathers materials with filler is 100: 2.0, gathers materials and selects basalt for use, and filler is the limestone breeze, and the nominal maximum aggregate size of mineral aggregate is 20mm; Pitch is heavy traffic paving asphalt.
(4), the material of high-viscosity modified asphalt tack coat is high-viscosity modified asphalt, high-viscosity modified asphalt is made up of styrene butadiene styrene block copolymer (SBS) (SBS), activating rubber powder, compatible resin, antioxidant and matrix pitch; The mass ratio of matrix pitch, styrene butadiene styrene block copolymer (SBS), activating rubber powder, compatible resin, antioxidant is 100: 7.4: 2.2: 2.4: 0.2; Wherein, compatible resin is a rosin glycerol resin, and antioxidant is plumbous, and matrix pitch is selected the AH-70 heavy traffic asphaltum for use.
(5), water drainage skid noise reduction wearing layer material is the macrovoid bituminous concrete; The macrovoid bituminous concrete is by mineral aggregate, high-viscosity modified asphalt and fibrous, and mineral aggregate, high-viscosity modified asphalt, quality of fiber ratio are 100: 4.0: 0.1; Described mineral aggregate is by gathering materials and filler is formed, and the mass ratio that gathers materials with filler is 100: 2.0, and gathering materials is that basalt, filler are the limestone breeze, and the nominal maximum aggregate size of mineral aggregate is 13mm.
High-viscosity modified asphalt is made up of styrene butadiene styrene block copolymer (SBS) (SBS), activating rubber powder, compatible resin, antioxidant and matrix pitch; The mass ratio of matrix pitch, styrene butadiene styrene block copolymer (SBS), activating rubber powder, compatible resin, antioxidant is 100: 7.4: 2.2: 2.4: 0.2; Wherein, compatible resin is a rosin glycerol resin, and antioxidant is plumbous, and matrix pitch is selected the AH-70 heavy traffic asphaltum for use.
Fiber is a lignin fibre.
Two, paving process:
1) the modified emulsified asphalt slurry seal bituminous material that paves on treated semi-rigid type base 1 forms modified emulsified asphalt slurry seal 2, and the thickness of modified emulsified asphalt slurry seal 2 is 0.5cm, and construction technology is with generally slurry seal and little table prescribing method are identical;
2) the macrovoid bituminous mixture parent that paves on modified emulsified asphalt slurry seal 2 is to guarantee void content and intercommunicating pore structure, rolls and should take the omnidistance static pressure of steel wheel in the process, and roll number of times and must not surpass 3 times, and pavement thickness is 10cm;
After treating the cooling of macrovoid bituminous mixture parent, polymer-modified cement-based grouting agent is poured on the macrovoid bituminous mixture parent terrain, pushes till the hole of macrovoid bituminous mixture parent terrain fills up with vulcanite scraper, then with its strickling; Get half-flexible pavement material structure layer 3, the thickness of half-flexible pavement material structure layer is 10～12cm;
3) maintenance is after 7 days, and heat is spread high-viscosity modified asphalt and formed high-viscosity modified asphalt tack coat 4 (as the adhesive linkages that discharge water) on half-flexible pavement material structure layer 3, and the high-viscosity modified asphalt spreading amount is 0.6L/m
2
4) the macrovoid bituminous concrete that then paves on high-viscosity modified asphalt tack coat 4 forms draining, anti-skidding, noise reduction wearing layer 5, and thickness is 3cm; Roll whole process using steel wheel static pressure in the process, degree of compaction reaches 98～100% and is advisable.
Embodiment 3:
One, the preparation of material:
(1) semi-rigid type base is made up of following raw material, and each raw material accounts for weight portion and is: a) mineral aggregate: 100 parts; B) cement: 5 parts; C) water: 5 parts.
Described mineral aggregate can be limestone or granite, and mineral aggregate gradation sees Table 12.
(2), modified emulsified asphalt slurry seal mats formation after being mixed and stirred by following raw material and forms, each parts by weight of raw materials is: a) mineral aggregate: 100 parts; B) mulseal: 15 parts; Wherein mineral aggregate is by gathering materials and filler is formed, and the mass ratio that gathers materials with filler is 100: 11.1; Gathering materials is that diabase, filler are the limestone breeze, and mulseal is the SBR modified emulsifying asphalt.
(3), half-flexible pavement material structure layer forms on the modified emulsified asphalt slurry seal polymer-modified cement-based grouting agent being poured on the macrovoid bituminous mixture parent;
Polymer-modified cement-based grouting agent is made up of following raw material, and each parts by weight of raw materials is: a) cement: 100 parts; B) flyash: 150 parts; C) mulseal: 160 parts; D) expansion agent: 70 parts; E) water reducing agent: 5 parts; F) sand: 80 parts; G) water: 50 parts.
Described cement is common 32.5,42.5,52.5 portland cements; Flyash is II level flyash.
Described mulseal is for splitting the type mulseal slowly, quality solid content 55-72%.
Described expansion agent is a UEA plain edition expansion agent; Described gas tracting subtractive agent is a polycarboxylate water-reducer.
Described sand is common thin river sand, and fineness modulus is 1.9-2.2;
Macrovoid bituminous mixture parent is made up of following raw material, and each raw material accounts for weight portion and is: a) mineral aggregate: 100 parts; B) pitch: 4.0 parts; Described mineral aggregate is by gathering materials and filler is formed, and the mass ratio that gathers materials with filler is 100: 6.4, gathers materials and selects diabase for use, and filler is the limestone breeze, and the nominal maximum aggregate size of mineral aggregate is 20mm; Pitch is the SBR modified bitumen.
(4), the material of high-viscosity modified asphalt tack coat is high-viscosity modified asphalt, high-viscosity modified asphalt is made up of styrene butadiene styrene block copolymer (SBS) (SBS), activating rubber powder, compatible resin, antioxidant and matrix pitch; The mass ratio of matrix pitch, styrene butadiene styrene block copolymer (SBS), activating rubber powder, compatible resin, antioxidant is 100: 14.5: 7.6: 6.7: 0.5; Wherein, compatible resin is a terpene resin, and antioxidant is a zinc, and matrix pitch is selected the AH-90 heavy traffic asphaltum for use.
(5), water drainage skid noise reduction wearing layer material is the macrovoid bituminous concrete; The macrovoid bituminous concrete is by mineral aggregate, high-viscosity modified asphalt and fibrous, and the mass ratio of mineral aggregate, high-viscosity modified asphalt, mineral fibers is 100: 6.0: 0.6; Described mineral aggregate is by gathering materials and filler is formed, and the mass ratio that gathers materials with filler is 100: 6.4, and gathering materials is that diabase, filler are the limestone breeze, and the nominal maximum aggregate size of mineral aggregate is 13mm.
High-viscosity modified asphalt is made up of styrene butadiene styrene block copolymer (SBS) (SBS), activating rubber powder, compatible resin, antioxidant and matrix pitch; The mass ratio of matrix pitch, styrene butadiene styrene block copolymer (SBS), activating rubber powder, compatible resin, antioxidant is 100: 14.5: 7.6: 6.7: 0.5; Wherein, compatible resin is a terpene resin, and antioxidant is a carbon black, and matrix pitch is selected the AH-90 heavy traffic asphaltum for use.
Fiber is a mineral fibers.
Two, paving process:
1) the modified emulsified asphalt slurry seal drop material that paves on treated semi-rigid type base 1 forms modified emulsified asphalt slurry seal 2, and the thickness of modified emulsified asphalt slurry seal 2 is 1.0cm, and construction technology is with generally slurry seal and little table prescribing method are identical;
2) the macrovoid bituminous mixture parent that paves on modified emulsified asphalt slurry seal 2 is to guarantee void content and intercommunicating pore structure, rolls and should take the omnidistance static pressure of steel wheel in the process, and roll number of times and must not surpass 3 times, and pavement thickness is 12cm;
After treating the cooling of macrovoid bituminous mixture parent, polymer-modified cement-based grouting agent is poured on the macrovoid bituminous mixture parent terrain, pushes till the hole of macrovoid bituminous mixture parent terrain fills up with vulcanite scraper, then with its strickling; Get half-flexible pavement material structure layer 3;
3) maintenance is after 7 days, and heat is spread high-viscosity modified asphalt and formed high-viscosity modified asphalt tack coat 4 (as the adhesive linkages that discharge water) on half-flexible pavement material structure layer 3, and the high-viscosity modified asphalt spreading amount is 0.8L/m
2
4) the macrovoid bituminous concrete that then paves on high-viscosity modified asphalt tack coat 4 forms draining, anti-skidding, noise reduction wearing layer 5, and thickness is 3～4cm; Roll whole process using steel wheel static pressure in the process, degree of compaction reaches 98～100% and is advisable.
Claims (6)
1. half-flexible water drainage skid-free noise-reducing road surface pavement structure, it comprises semi-rigid type base, it is characterized in that the semi-rigid type base upper berth is equipped with modified emulsified asphalt slurry seal, be perfused with half-flexible pavement material structure layer on the modified emulsified asphalt slurry seal, spreading has the high-viscosity modified asphalt tack coat on the half-flexible pavement material structure layer, and water drainage skid noise reduction wearing layer has paved on the high-viscosity modified asphalt tack coat;
Described half-flexible pavement material structure layer is to form on the modified emulsified asphalt slurry seal polymer-modified cement-based grouting agent being poured on the macrovoid bituminous mixture parent;
Polymer-modified cement-based grouting agent is made up of following raw material, and each parts by weight of raw materials is: a) cement: 100 parts; B) flyash: 50-150 part; C) mulseal: 50-160 part; D) expansion agent: 30-70 part; E) water reducing agent: 0.5-5 part; F) sand: 0-80 part; G) water: 0-50 part;
Macrovoid bituminous mixture parent is made up of following raw material, and each raw material accounts for weight portion and is: a) mineral aggregate: 100 parts; B) pitch: 2.5-4.0 part; Described mineral aggregate is by gathering materials and filler is formed, and the mass ratio that gathers materials with filler is 100: 2.0～6.4, gathers materials that to select basalt or diabase, filler for use be the limestone breeze, and the nominal maximum aggregate size of mineral aggregate is 20mm; Pitch is heavy traffic paving asphalt or SBR modified bitumen or SBS modified bitumen or PE modified bitumen;
The material of described high-viscosity modified asphalt tack coat is a high-viscosity modified asphalt, and high-viscosity modified asphalt is made up of styrene butadiene styrene block copolymer (SBS), activating rubber powder, compatible resin, antioxidant and matrix pitch; The mass ratio of matrix pitch, styrene butadiene styrene block copolymer (SBS), activating rubber powder, compatible resin, antioxidant is 100: 7.4～14.5: 2.2～7.6: 2.4～6.7: 0.2～0.5; Wherein, compatible resin is rosin glycerol resin, terpene resin or Petropols, and antioxidant is lead, zinc, carbon black, calcium salt or amine, and matrix pitch is selected AH-70 heavy traffic asphaltum or AH-90 heavy traffic asphaltum for use;
Water drainage skid noise reduction wearing layer material is the macrovoid bituminous concrete; The macrovoid bituminous concrete is by mineral aggregate, high-viscosity modified asphalt and fibrous, and mineral aggregate, high-viscosity modified asphalt, quality of fiber ratio are 100: 4.0～6.0: 0～0.6; Described mineral aggregate is by gathering materials and filler is formed, and the mass ratio that gathers materials with filler is 100: 2.0～6.4, and gathering materials is basalt or diabase, and filler is the limestone breeze, and the nominal maximum aggregate size of mineral aggregate is 13mm.
2. a kind of half-flexible water drainage skid-free noise-reducing road surface pavement structure according to claim 1 is characterized in that: mating formation after described modified emulsified asphalt slurry seal is mixed and stirred by following raw material forms, and each parts by weight of raw materials is: a) mineral aggregate: 100 parts; B) mulseal: 15 parts; Wherein mineral aggregate is by gathering materials and filler is formed, and the mass ratio that gathers materials with filler is 100: 11.1; Gathering materials is basalt or diabase, and filler is the limestone breeze, and mulseal is the SBR modified emulsifying asphalt.
3. a kind of half-flexible water drainage skid-free noise-reducing road surface pavement structure according to claim 1 is characterized in that: the thickness of described modified emulsified asphalt slurry seal is 0.5～1.0cm.
4. a kind of half-flexible water drainage skid-free noise-reducing road surface pavement structure according to claim 1 is characterized in that: the thickness of described half-flexible pavement material structure layer is 10～12cm.
5. a kind of half-flexible water drainage skid-free noise-reducing road surface pavement structure according to claim 1 is characterized in that: the high-viscosity modified asphalt spreading amount of high-viscosity modified asphalt tack coat is 0.6～0.8L/m
2
6. a kind of half-flexible water drainage skid-free noise-reducing road surface pavement structure according to claim 1 is characterized in that: the high-viscosity modified asphalt of water drainage skid noise reduction wearing layer is made up of styrene butadiene styrene block copolymer (SBS), activating rubber powder, compatible resin, antioxidant and matrix pitch; The mass ratio of matrix pitch, styrene butadiene styrene block copolymer (SBS), activating rubber powder, compatible resin, antioxidant is 100: 7.4～14.5: 2.2～7.6: 2.4～6.7: 0.2～0.5; Wherein, compatible resin is rosin glycerol resin, terpene resin or Petropols, and antioxidant is lead, zinc, carbon black, calcium salt or amine, and matrix pitch is selected AH-70 heavy traffic asphaltum or AH-90 heavy traffic asphaltum for use.
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