CN102173654B - Cold spraying type epoxy thin bridge deck paving material and preparation method thereof - Google Patents
Cold spraying type epoxy thin bridge deck paving material and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a cold spraying type epoxy thin bridge deck paving material and a preparation method thereof. The cold spraying type epoxy thin deck paving material is characterized by comprising a binder and a single grading fine aggregate, wherein 1-2kg/m<2> of the binder is smeared on a bridge deck so as to form a binder layer; 5-8kg/m<2> of the single grading fine aggregate is sprayed on the binder layer so as to form a single grading fine aggregate layer; the binder is formed by mixing a component A with a component B, and the weight ratio of the component A to the component B is (1-1.4):1; the component A comprises the following raw materials in parts by weight: 75-85 parts of epoxy resin, 15-25 parts of modified epoxy resin and 5-10 parts of diluent; and the component B comprises the following raw materials in parts by weight: 20-30 parts of cycloaliphatic amide curing agent, 10-20 parts of modified amine curing agent and 40-60 parts of cured accelerator. The cold spraying type epoxy thin bridge deck paving material has the characteristics of good skid-resisting and wear-resisting properties, high adhesion strength with the bridge deck, good waterproof and seepage-proofing properties and good low temperature flexibility.
Description
Technical field
The present invention relates to a kind of bridge deck pavement material and preparation method thereof, be widely used in cement concrete bridge deck and steel box girder bridge floor paving.
Background technology
Bridge is the throat thoroughfare of communications and transportation, and its mileage proportion in total mileage of highway is very little, but it is huge because of maintenance to the impact of the whole road network traffic capacity.Bridge deck pavement material is because the special construction position at its place, its work-ing life much smaller than with the plain asphalt road surface.Owing to more easily forming canalized traffic at the bridge place, the layer of mating formation simultaneously is stressed more complicated, and bridge deck pavement more easily produces earlier period damage than plain asphalt road surface, is seriously restricting its using character and life-span.Frequently maintenance, maintenance, even overhaul and not only wasted a large amount of financial resources, material resources and manpower, serious traffic congestion also caused.
The special role of bridge in Road Transportation requires its bridge deck pavement material must satisfy the requirement of weather resistance.In addition, maintenance cost and accessibility thereof, the social cost that the traffic congestion that causes because of maintenance is brought also should draw attention.At present, on cement concrete bridge deck, mostly adopt modified asphalt concrete to mat formation.On steel box girder bridge face, because the decking distortion is large, therefore adopt cast-type SMA bituminous concrete and epoxy asphalt concretes more.
Lot of domestic and foreign entity project application result shows that paving steel bridge deck is still world-famous puzzle.The fatigue cracking that the interlayer Cementation failure of Steel Bridge Deck Pavement and the surperficial flexural-tensile strain of layer of mating formation cause is the problem that emphasis is considered.This requires the steel deck paving package material to have good bond performance (particularly under the hot conditions) with steel bridge deck, also must have simultaneously good flexibility (particularly under cold condition), in order to can follow the gross distortion of decking cold cracking and fatigue cracking not occur.
Summary of the invention
The object of the present invention is to provide a kind of antiskid wear resisting property good, cold type epoxy thin layer bridge deck pavement material and preparation method thereof that is coated with that high with the decking cohesive strength, the waterproof, seepage control performance is good, low temperature flexibility is good.
To achieve these goals, the technical solution used in the present invention is: the cold type epoxy thin layer bridge deck pavement material that is coated with, it is characterized in that it joins fine aggregate by cakingagent and single-stage and form, and cakingagent is by 1～2kg/m
2Consumption spreads upon on (being layered on) decking and forms glue layer; Single-stage is joined fine aggregate by 5～8kg/m
2Consumption is shed in (being bonded in) glue layer formation single-stage and is joined the fine aggregate layer;
Described cakingagent is mixed by A component and B component, and the weight ratio of A component and B component is (1～1.4): 1; Described A component is mixed by the raw material that includes Resins, epoxy, modified epoxy and thinner, and the shared parts by weight of each raw material are in the A component: 75～85 parts of Resins, epoxy, 15～25 parts of modified epoxies, 5～10 parts of thinners; Described B component is mixed by the raw material that includes alicyclic ring amine curing agent, modified amine curing agent and curing catalyst, the shared parts by weight of each raw material are in the B component: 20～30 parts of alicyclic ring amine curing agents, 10～20 parts of modified amine curing agents, 40～60 parts of curing catalysts;
The particle diameter that described single-stage is joined fine aggregate is 3～5mm.
Described cakingagent is by 1～2kg/m
2It is the first glue layer that consumption spreads upon the glue layer that forms on (being layered on) decking, and single-stage is joined fine aggregate by 5～8kg/m
2Consumption is shed the single-stage that forms in (being bonded in) glue layer, and to join the fine aggregate layer be that the first single-stage is joined the fine aggregate layer; Join on the fine aggregate layer by 1～2kg/m in the first single-stage
2Consumption is smeared cakingagent and is formed the second glue layer, presses 5～8kg/m in the second glue layer
2Consumption is shed single-stage and is joined fine aggregate and form the second single-stage and join the fine aggregate layer.
Described the second single-stage is joined on the fine aggregate layer by 1～2kg/m
2Consumption is smeared cakingagent and is formed the 3rd glue layer, presses 5～8kg/m in the 3rd glue layer
2Consumption is shed single-stage and is joined fine aggregate and form the 3rd single-stage and join the fine aggregate layer.
Described Resins, epoxy is bisphenol A type epoxy resin; Described bisphenol A type epoxy resin is E-51 Resins, epoxy or CYD-128 Resins, epoxy, has that oxirane value is high, viscosity is low, lighter color, is applicable to the characteristics such as caking agent, solventless coatings, gravity flow self-leveling floor material, mould material;
Described modified epoxy is the prepolymer that active epoxy thinner and bisphenol A type epoxy resin reaction form.The preparation method of modified epoxy (prepolymer) is: the parts by weight by active epoxy thinner, bisphenol A type epoxy resin are: 10～20 parts of active epoxy thinners, 80～90 parts of bisphenol A type epoxy resins, stirring at normal temperature in stirred pot formed modified epoxy after 10～20 minutes with active epoxy thinner and bisphenol A type epoxy resin.
Described thinner is epoxide resin reactive diluent, be epoxy propane butyl ether or epoxidation vinyl benzene, it has overcome the shortcoming that common thinner has toxicity, easily volatilizees, has irritating smell, and the reduced viscosity of Resins, epoxy, active increase, snappiness are strengthened.
Above-described is the starting material of A component.
Described alicyclic ring amine curing agent is the REX-819S solidifying agent, and viscosity is low, has good physical strength, abrasion resistance;
Described modified amine curing agent is the prepolymer of binary amine solidifying agent D-2000 and epoxy toughening modifier R F-400.The preparation method of modified amine curing agent (prepolymer) is: the parts by weight by binary amine solidifying agent D-2000, epoxy toughening modifier R F-400 are: 20～40 parts of binary amine solidifying agent D-2000,60～80 parts of epoxy toughening modifier R F-400, stirring at normal temperature in stirred pot formed modified amine curing agent after 10～20 minutes with binary amine solidifying agent D-2000 and epoxy toughening modifier R F-400.The viscosity of described binary amine solidifying agent D-2000 is low, and the polyether backbone snappiness of high molecular is strengthened, and tearing toughness improves; Described epoxy toughening properties-correcting agent is RF-400, it is a kind of high-performance epoxy resin plasticized modifier, have good toughness reinforcing performance and reactive behavior, can improve significantly the mechanical property such as shock-resistant, compression, cracking resistance and cohesive strength of epoxy resin cured product.
Described curing catalyst is the mixture of curing catalyst DMP-30 and curing catalyst XTA-770, when making the B component, the weight ratio of curing catalyst DMP-30 and curing catalyst XTA-770 is (20～40): (60～80), can improve the solidification rate of Resins, epoxy, and make the flexible reinforced of cured article.
Above-described is the starting material of B component.
It is basalt fine aggregate, corundum fine aggregate or colored ceramic particle that described single-stage is joined fine aggregate (single-stage is joined abrasive aggregates), and Mohs' hardness is greater than 7 grades, and water content is less than 0.2wt%.
Described bridge floor comprises cement concrete bridge deck or steel box girder bridge face.
The above-mentioned cold preparation method who is coated with type epoxy thin layer bridge deck pavement material is characterized in that it comprises the steps:
1) preparation of cakingagent:
1. by the shared parts by weight of each raw material be: 75～85 parts of Resins, epoxy, 15～25 parts of modified epoxies, 5～10 parts of thinners, choose Resins, epoxy, modified epoxy and thinner, with Resins, epoxy, modified epoxy and mixing diluents, obtain the A component;
2. by the shared parts by weight of each raw material be: 20～30 parts of alicyclic ring amine curing agents, 10～20 parts of modified amine curing agents, 40～60 parts of curing catalysts, choose alicyclic ring amine curing agent, modified amine curing agent and curing catalyst, alicyclic ring amine curing agent, modified amine curing agent and curing catalyst are mixed, obtain the B component;
The weight ratio of 3. pressing A component and B component is (1～1.4): 1, choose A component and B component, and A component and B component are mixed, obtain cakingagent;
2) cakingagent is pressed 1～2kg/m
2Consumption spreads upon on (being layered on) decking and forms glue layer; Single-stage is joined fine aggregate by 5～8kg/m
2Consumption is shed in (being bonded in) glue layer formation single-stage and is joined the fine aggregate layer; Obtain the cold type epoxy thin layer bridge deck pavement material (individual layer) that is coated with.
Described cakingagent is by 1～2kg/m
2It is the first glue layer that consumption spreads upon the glue layer that forms on (being layered on) decking, and single-stage is joined fine aggregate by 5～8kg/m
2Consumption is shed the single-stage that forms in (being bonded in) glue layer, and to join the fine aggregate layer be that the first single-stage is joined the fine aggregate layer;
After the cakingagent of the first glue layer solidifies (15～30 ℃ of solidification values, 1.5～6 hours set times), remove the first single-stage and join fine aggregate layer unnecessary gathering materials of surface; Join on the fine aggregate layer by 1～2kg/m in the first single-stage again
2Consumption is smeared cakingagent and is formed the second glue layer, presses 5～8kg/m in the second glue layer
2Consumption is shed single-stage and is joined fine aggregate and form the second single-stage and join the fine aggregate layer; Repeat this step, until total pavement thickness is 5～15mm (adopting the cold formula that is coated with to mat formation); Behind the cakingagent completion of cure of last glue layer, adopt the aggregate recycling machine to remove unnecessary gathering materials and not firm the gathering materials that bond, obtain the cold type epoxy thin layer bridge deck pavement material (formation bridge deck pavement) that is coated with of multilayer.
Institutes Of Technology Of Changsha has carried out desk research to epoxy resin concrete, the material that it adopts and preparation method and the present invention have following difference: (1) adopts common raw materials to prepare the Resins, epoxy gluing, and its low-temperature bending adaptability to changes is more relatively poor than bituminous concrete; (2) aggregate grading is adopted as SAC coarse aggregate gap gradation bituminous concrete AM-10 type, and adopts the asphalt Marshall method to determine the sizing agent consumption; (3) preparation method adopts compound to mix and stir, pave and rolling method; (4) surface structure concentration is little, and cling property is not as epoxy thin layer bridge deck pavement material.
Chongqing intelligence Xiang causeway engineering company limited has applied for the patent of invention of " epoxy thin layer antiskid layer pavement structure and constructional method " in 2004; it mainly lays particular emphasis on a kind of epoxy thin layer antiskid layer pavement structure of protection and constructional method; but its material prescription and preparation method are not proposed claim, mainly contain with the key distinction of the present invention:
(1) the A component is added modifying asphalt, and its used sizing agent is the bituminous epoxy sizing agent in essence;
(2) add the fine aggregate filler, be prepared into rubber cement with A, B component, its viscosity is large, does not have self-leveling, need manually carry out blade coating;
(3) the bituminous epoxy rubber cement is larger than epoxy adhesive set time, needs long-time maintenance ability open to traffic;
(4) only be used as the antiskid wearing layer of cement concrete and bituminous concrete pavement, inoperative to structure, the prepared pavement material of the present invention is the bridge deck pavement for cement concrete bridge deck and Steel Bridge Deck, is the bridge deck structure protective layer with anti-skidding, waterproof, the several functions such as antirust;
(5) used gathering materials need to be passed through surface treatment in advance, namely adopts coupling agent to soak post-drying, and technique is complicated.
The cold type epoxy thin layer bridge deck pavement material that is coated with of the present invention indoor accelerating and loading test and girder flexural strength and Fatigue Test Research have been carried out.By showing with epoxy asphalt concrete and SMA bituminous concrete comparative analysis result, the cold temperature sensitivity that is coated with type epoxy thin layer bridge deck pavement material of the present invention is comparatively similar to bituminous epoxy, but less than the temperature sensitivity of SMA bituminous concrete.Under the differing temps, the cold flexural strength size order that is coated with type epoxy thin layer bridge deck pavement material, epoxy asphalt concrete and three kinds of materials of SMA bituminous concrete of the present invention is: epoxy asphalt concrete, cold type epoxy thin layer bridge deck pavement material and the SMA bituminous concrete of being coated with of the present invention.When 60 ℃ of high temperature, epoxy asphalt concrete and the cold type epoxy thin layer bridge deck pavement material that is coated with of the present invention still have sufficiently high intensity, show than the better high-temperature behavior of SMA asphalt.Under different temperature, the cold stiffness modulus that is coated with type epoxy thin layer bridge deck pavement material of the present invention shows that it is applicable to the road pavement layer between epoxy asphalt concrete and SMA bituminous concrete.Under different temperature, the cold maximum bending strain of type epoxy thin layer bridge deck pavement material that is coated with of the present invention is all greater than SMA bituminous concrete and epoxy asphalt concrete.-10 ℃ of low-temperature bending strain sizes are: the cold type epoxy thin layer bridge deck pavement material 4219 μ m/m that are coated with of the present invention, epoxy asphalt concrete 2543 μ m/m and SMA bituminous concrete 3202 μ m/m show of the present inventionly coldly to be coated with type epoxy thin layer bridge deck pavement material temperature resistance contracting cracking and fatigue property is better than epoxy asphalt concrete and SMA bituminous concrete.The peak value that breaking strain can density all appears in cold type epoxy thin layer bridge deck pavement material and the epoxy asphalt concrete of being coated with of the present invention in 25 ℃ of districts of normal temperature, it is 10 ℃ that temperature corresponding to peak value appears in the SMA bituminous concrete.When low temperature-10 ℃, the cold breaking strain that is coated with type epoxy thin layer bridge deck pavement material of the present invention can density all greater than epoxy asphalt concrete and SMA bituminous concrete, show preferably resistance to crack extension performance.Under same strain level, the cold anti-fatigue performance that is coated with type epoxy thin layer bridge deck pavement material of the present invention is best in the time of 0 ℃, is epoxy asphalt concrete secondly, and the SMA bituminous concrete is the poorest.At cold zone, when the repeated strain level was 800 μ m/m, the cold type epoxy thin layer bridge deck pavement material that is coated with of the present invention still can reach more than 1,000,000 times fatigue lifetime.
The invention has the beneficial effects as follows:
1, total pavement thickness of the present invention is much smaller than the mat formation thickness of layer (50mm) of existing epoxy asphalt concrete, thickness much smaller than existing asphalt concrete pavement layer (100mm), greatly reduce the wear-resisting consumption that gathers materials of high-quality, reduce the exploitation of ore resource, alleviate simultaneously the bridge own wt, increase effective bearing capacity of bridge structure.
2, owing to adopting single-stage to join fine aggregate (single-stage is joined abrasive aggregates), the surface texture depth of the layer (the cold type epoxy thin layer bridge deck pavement material that is coated with) of mating formation of the present invention is greater than other pavement material, and non-skid property is superior, and the antiskid wear resisting property is good.
3, owing to having adopted cakingagent to be mixed by A component and B component, described A component is mixed by the raw material that includes Resins, epoxy, modified epoxy and thinner, and described B component is mixed by the raw material that includes alicyclic ring amine curing agent, modified amine curing agent and curing catalyst; Be better than the water-proof materials such as modifying asphalt, bituminous epoxy with cement concrete slab and steel bridge deck adhesive property, the waterproof, seepage control performance is good, and is high with the decking cohesive strength, and bridge structure is played a very good protection.
4, the high-temperature stability of the layer (the cold type epoxy thin layer bridge deck pavement material that is coated with) of mating formation of the present invention is good, rut problem such as bituminous pavement can not appear, in addition, its low temperature flexibility is better than epoxy asphalt concrete and modified asphalt concrete, more be applicable to have the Steel Bridge Deck of gross distortion, reduce fatigue cracking, long service life.
5, the cold starting material that are coated with type epoxy thin layer bridge deck pavement material of the present invention are substantially domestic, and the source of goods is wide, and product processes is simple, be easy to promote, and be the novel material that present traditional bridge deck pavement material can't replace.
Embodiment
In order to understand better the present invention, further illustrate content of the present invention below in conjunction with embodiment and experimental data, but content of the present invention not only is confined to the following examples.
Embodiment 1:
The cold preparation method who is coated with type epoxy thin layer bridge deck pavement material, it comprises the steps:
1) preparation of cakingagent:
1. by the shared parts by weight of each raw material be: 75 parts of Resins, epoxy, 25 parts of modified epoxies, 5 parts of thinners, choose Resins, epoxy, modified epoxy and thinner, with Resins, epoxy, modified epoxy and mixing diluents, obtain the A component;
Described Resins, epoxy is E-51 Resins, epoxy, has that oxirane value is high, viscosity is low, lighter color, is applicable to the characteristics such as caking agent, solventless coatings, gravity flow self-leveling floor material, mould material;
Described modified epoxy is the prepolymer that active epoxy thinner and bisphenol A type epoxy resin reaction form; The preparation method of prepolymer is: the parts by weight by active epoxy thinner, bisphenol A type epoxy resin are: 10 parts of active epoxy thinners, 90 parts of bisphenol A type epoxy resins, and stirring at normal temperature in stirred pot formed modified epoxy after 10～20 minutes with active epoxy thinner and bisphenol A type epoxy resin;
Described thinner is the epoxy propane butyl ether thinner, and it has overcome the shortcoming that common thinner has toxicity, easily volatilizees, has irritating smell, and the reduced viscosity of Resins, epoxy, active increase, snappiness are strengthened.
2. by the shared parts by weight of each raw material be: 30 parts of alicyclic ring amine curing agents, 10 parts of modified amine curing agents, 40 parts of curing catalysts, choose alicyclic ring amine curing agent, modified amine curing agent and curing catalyst, alicyclic ring amine curing agent, modified amine curing agent and curing catalyst are mixed, obtain the B component;
Described alicyclic ring amine curing agent is the REX-819S solidifying agent, and viscosity is low, has good physical strength, abrasion resistance;
Described modified amine curing agent is the prepolymer of binary amine solidifying agent D-2000 and epoxy toughening modifier R F-400;
The preparation method of modified amine curing agent (prepolymer) is: the parts by weight by binary amine solidifying agent D-2000, epoxy toughening modifier R F-400 are: 20 parts of binary amine solidifying agent D-2000,80 parts of epoxy toughening modifier R F-400, and stirring at normal temperature in stirred pot formed modified amine curing agent after 10～20 minutes with binary amine solidifying agent D-2000 and epoxy toughening modifier R F-400; The viscosity of described binary amine solidifying agent D-2000 is low, and the polyether backbone snappiness of high molecular is strengthened, and tearing toughness improves; Described epoxy toughening properties-correcting agent is RF-400, it is a kind of high-performance epoxy resin plasticized modifier, have good toughness reinforcing performance and reactive behavior, can improve significantly the mechanical property such as shock-resistant, compression, cracking resistance and cohesive strength of epoxy resin cured product;
Described curing catalyst is curing catalyst DMP-30 and curing catalyst XTA-770, and the weight ratio of curing catalyst DMP-30 and curing catalyst XTA-770 is 20: 80, can improve the solidification rate of Resins, epoxy, and makes the flexible reinforced of cured article.
3. the weight ratio by A component and B component is 1.2: 1, chooses A component and B component, and A component and B component are mixed, and obtains cakingagent;
2) cakingagent is pressed 1kg/m
2Consumption spreads upon the upper glue layer that forms of (being layered on) decking (cement concrete bridge deck plate); Single-stage is joined fine aggregate by 8kg/m
2Consumption is shed in (being bonded in) glue layer formation single-stage and is joined the fine aggregate layer; Obtain the cold type epoxy thin layer bridge deck pavement material that is coated with of individual layer; After cakingagent solidifies (15～30 ℃ of solidification values, 1.5～6 hours set times), first cleaning was removed with sander and is cohered not firm gathering materials except unnecessary gathering materials of surface, finally formed the antiskid surface layer (total pavement thickness is 5mm) of mating formation.
It is the natural basalt fine aggregate that described single-stage is joined fine aggregate (single-stage is joined abrasive aggregates), and Mohs' hardness is greater than 7 grades, and water content is less than 0.2wt%, and the particle diameter that single-stage is joined fine aggregate is 3～5mm.
According to " highway engineering pitch and Asphalt Mixture Experiment rules " (JTJ 052-2000), by sand patch method survey surface texture depth 1.1mm, pendulum type friction instrument actual measurement frictional coefficient is 83BPM, infiltration coefficient is 0, and the cold antiskid wear resisting property that is coated with type epoxy thin layer bridge deck pavement material that illustrates that the embodiment of the invention obtains is good, waterproof, seepage control is strong.High temperature drawing cohesive strength is 1.35MPa, illustrate that the embodiment of the invention obtains cold be coated with type epoxy thin layer bridge deck pavement material and the decking cohesive strength high.It is 3508 μ m/m that the standard three-point bending girder test specimen of making by above-mentioned materials and method records-10 ℃ of fracture flexural strains, illustrate that the embodiment of the invention obtains cold to be coated with type epoxy thin layer bridge deck pavement material low temperature flexibility good.
Embodiment 2:
The cold preparation method who is coated with type epoxy thin layer bridge deck pavement material, it comprises the steps:
1) preparation of cakingagent:
1. by the shared parts by weight of each raw material be: 85 parts of Resins, epoxy, 15 parts of modified epoxies, 10 parts of thinners, choose Resins, epoxy, modified epoxy and thinner, with Resins, epoxy, modified epoxy and mixing diluents, obtain the A component;
Described Resins, epoxy is CYD-128 Resins, epoxy, has that oxirane value is high, viscosity is low, lighter color, is applicable to the characteristics such as caking agent, solventless coatings, gravity flow self-leveling floor material, mould material;
Described modified epoxy is the prepolymer that active epoxy thinner and bisphenol A type epoxy resin reaction form; The preparation method of prepolymer is: the parts by weight by active epoxy thinner, bisphenol A type epoxy resin are: 20 parts of active epoxy thinners, 80 parts of bisphenol A type epoxy resins, and stirring at normal temperature in stirred pot formed modified epoxy after 10～20 minutes with active epoxy thinner and bisphenol A type epoxy resin;
Described thinner is the epoxidation vinyl benzene thinner, and it has overcome the shortcoming that common thinner has toxicity, easily volatilizees, has irritating smell, and the reduced viscosity of Resins, epoxy, active increase, snappiness are strengthened.
2. by the shared parts by weight of each raw material be: 20 parts of alicyclic ring amine curing agents, 20 parts of modified amine curing agents, 60 parts of curing catalysts, choose alicyclic ring amine curing agent, modified amine curing agent and curing catalyst, alicyclic ring amine curing agent, modified amine curing agent and curing catalyst are mixed, obtain the B component;
Described alicyclic ring amine curing agent is the REX-819S solidifying agent, and viscosity is low, has good physical strength, abrasion resistance;
Described modified amine curing agent is the prepolymer of binary amine solidifying agent D-2000 and epoxy toughening modifier R F-400; The preparation method of modified amine curing agent (prepolymer) is: the parts by weight by binary amine solidifying agent D-2000, epoxy toughening modifier R F-400 are: 40 parts of binary amine solidifying agent D-2000,60 parts of epoxy toughening modifier R F-400, stirring at normal temperature in stirred pot formed modified amine curing agent after 10～20 minutes with binary amine solidifying agent D-2000 and epoxy toughening modifier R F-400.The viscosity of described binary amine solidifying agent D-2000 is low, and the polyether backbone snappiness of high molecular is strengthened, and tearing toughness improves; Described epoxy toughening properties-correcting agent is RF-400, it is a kind of high-performance epoxy resin plasticized modifier, have good toughness reinforcing performance and reactive behavior, can improve significantly the mechanical property such as shock-resistant, compression, cracking resistance and cohesive strength of epoxy resin cured product;
Described curing catalyst is curing catalyst DMP-30 and curing catalyst XTA-770, the weight ratio of curing catalyst DMP-30 and curing catalyst XTA-770=40: 60; Can improve the solidification rate of Resins, epoxy, and make the flexible reinforced of cured article.
3. the weight ratio by A component and B component is 1.3: 1, chooses A component and B component, and A component and B component are mixed, and obtains cakingagent;
2) cakingagent is pressed 2kg/m
2Consumption spreads upon upper first glue layer that forms of (being layered on) decking (16mm steel box girder bridge panel); Single-stage is joined fine aggregate by 5kg/m
2Consumption is shed in (being bonded in) glue layer formation the first single-stage and is joined the fine aggregate layer; After the cakingagent of the first glue layer solidifies (15～30 ℃ of solidification values, 1.5～6 hours set times), remove the first single-stage and join fine aggregate layer unnecessary gathering materials of surface; Join on the fine aggregate layer by 2kg/m in the first single-stage again
2Consumption is smeared cakingagent and is formed the second glue layer, presses 5kg/m in the second glue layer
2Consumption is shed single-stage and is joined fine aggregate and form the second single-stage and join the fine aggregate layer; Obtain two layers of cold type epoxy thin layer bridge deck pavement material that is coated with; (15～30 ℃ of solidification values behind the cakingagent completion of cure of the second glue layer, 1.5～6 hours set times), adopt the aggregate recycling machine to remove unnecessary gathering materials and not firm the gathering materials that bond, finally form the double-deck antiskid surface layer (always pavement thickness is 10mm) of mating formation.
It is colored ceramic particle that described single-stage is joined fine aggregate (single-stage is joined abrasive aggregates), and Mohs' hardness is greater than 7 grades, and water content is less than 0.2wt%, and the particle diameter that single-stage is joined fine aggregate is 3～5mm.
According to " highway engineering pitch and Asphalt Mixture Experiment rules " (JTJ 052-2000), by sand patch method survey surface texture depth 1.2mm, pendulum type friction instrument actual measurement frictional coefficient is 80BPM, infiltration coefficient is 0, and the cold antiskid wear resisting property that is coated with type epoxy thin layer bridge deck pavement material that illustrates that the embodiment of the invention obtains is good, waterproof, seepage control is strong.High temperature drawing cohesive strength is 1.20MPa, illustrate that the embodiment of the invention obtains cold be coated with type epoxy thin layer bridge deck pavement material and the decking cohesive strength high.It is 3928 μ m/m that the standard three-point bending girder test specimen of making by above-mentioned materials and method records-10 ℃ of fracture flexural strains, illustrate that the embodiment of the invention obtains cold to be coated with type epoxy thin layer bridge deck pavement material low temperature flexibility good.
Embodiment 3:
The cold preparation method who is coated with type epoxy thin layer bridge deck pavement material, it comprises the steps:
1) preparation of cakingagent:
1. by the shared parts by weight of each raw material be: 80 parts of Resins, epoxy, 20 parts of modified epoxies, 8 parts of thinners, choose Resins, epoxy, modified epoxy and thinner, with Resins, epoxy, modified epoxy and mixing diluents, obtain the A component;
Described Resins, epoxy is CYD-128 Resins, epoxy, has that oxirane value is high, viscosity is low, lighter color, is applicable to the characteristics such as caking agent, solventless coatings, gravity flow self-leveling floor material, mould material;
Described modified epoxy is the prepolymer that active epoxy thinner and bisphenol A type epoxy resin reaction form; The preparation method of prepolymer is: the parts by weight by active epoxy thinner, bisphenol A type epoxy resin are: 15 parts of active epoxy thinners, 85 parts of bisphenol A type epoxy resins, and stirring at normal temperature in stirred pot formed modified epoxy after 10～20 minutes with active epoxy thinner and bisphenol A type epoxy resin;
Described thinner is epoxy propane butyl ether, and it has overcome the shortcoming that common thinner has toxicity, easily volatilizees, has irritating smell, and the reduced viscosity of Resins, epoxy, active increase, snappiness are strengthened.
2. by the shared parts by weight of each raw material be: 30 parts of alicyclic ring amine curing agents, 20 parts of modified amine curing agents, 50 parts of curing catalysts, choose alicyclic ring amine curing agent, modified amine curing agent and curing catalyst, alicyclic ring amine curing agent, modified amine curing agent and curing catalyst are mixed, obtain the B component;
Described alicyclic ring amine curing agent is the REX-819S solidifying agent, and viscosity is low, has good physical strength, abrasion resistance;
Described modified amine curing agent is the prepolymer of binary amine solidifying agent D-2000 and epoxy toughening modifier R F-400; The preparation method of modified amine curing agent (prepolymer) is: the parts by weight by binary amine solidifying agent D-2000, epoxy toughening modifier R F-400 are: 30 parts of binary amine solidifying agent D-2000,70 parts of epoxy toughening modifier R F-400, and stirring at normal temperature in stirred pot formed modified amine curing agent after 10～20 minutes with binary amine solidifying agent D-2000 and epoxy toughening modifier R F-400; The viscosity of described binary amine solidifying agent D-2000 is low, and the polyether backbone snappiness of high molecular is strengthened, and tearing toughness improves; Described epoxy toughening properties-correcting agent is RF-400, it is a kind of high-performance epoxy resin plasticized modifier, have good toughness reinforcing performance and reactive behavior, can improve significantly the mechanical property such as shock-resistant, compression, cracking resistance and cohesive strength of epoxy resin cured product;
Described curing catalyst is curing catalyst DMP-30 and curing catalyst XTA-770, the weight ratio of curing catalyst DMP-30 and curing catalyst XTA-770=30: 70; Can improve the solidification rate of Resins, epoxy, and make the flexible reinforced of cured article.
3. the weight ratio by A component and B component is 1.25: 1, chooses A component and B component, and A component and B component are mixed, and obtains cakingagent;
2) cakingagent is pressed 2kg/m
2Consumption spreads upon the upper glue layer that forms of (being layered on) decking (20mm steel box girder bridge panel); Single-stage is joined fine aggregate by 7kg/m
2Consumption is shed in (being bonded in) glue layer formation single-stage and is joined the fine aggregate layer; After the cakingagent of the first glue layer solidifies (15～30 ℃ of solidification values, 1.5～6 hours set times), remove the first single-stage and join fine aggregate layer unnecessary gathering materials of surface; Join on the fine aggregate layer by 2kg/m in the first single-stage again
2Consumption is smeared cakingagent and is formed the second glue layer, presses 7kg/m in the second glue layer
2Consumption is shed single-stage and is joined fine aggregate and form the second single-stage and join the fine aggregate layer; After the cakingagent of the second glue layer solidifies (15～30 ℃ of solidification values, 1.5～6 hours set times), remove the second single-stage and join fine aggregate layer unnecessary gathering materials of surface; Join on the fine aggregate layer by 2kg/m in the second single-stage again
2Consumption is smeared cakingagent and is formed the 3rd glue layer, presses 7kg/m in the 3rd glue layer
2Consumption is shed single-stage and is joined fine aggregate and form the 3rd single-stage and join the fine aggregate layer; Behind the cakingagent completion of cure of the 3rd glue layer, adopt the aggregate recycling machine to remove unnecessary gathering materials and not firm the gathering materials that bond, obtain three layers of cold type epoxy thin layer bridge deck pavement material (form the multilayer antiskid surface layer of mating formation, always pavement thickness is 15mm) that is coated with.
It is colored ceramic particle that described single-stage is joined fine aggregate (single-stage is joined abrasive aggregates), and Mohs' hardness is greater than 7 grades, and water content is less than 0.2wt%, and the particle diameter that single-stage is joined fine aggregate is 3～5mm.
According to " highway engineering pitch and Asphalt Mixture Experiment rules " (JTJ 052-2000), by sand patch method survey surface texture depth 1.0mm, pendulum type friction instrument actual measurement frictional coefficient is 78BPM, infiltration coefficient is 0, and the cold antiskid wear resisting property that is coated with type epoxy thin layer bridge deck pavement material that illustrates that the embodiment of the invention obtains is good, waterproof, seepage control is strong.High temperature drawing cohesive strength is 1.28MPa, illustrate that the embodiment of the invention obtains cold be coated with type epoxy thin layer bridge deck pavement material and the decking cohesive strength high.It is 3840 μ m/m that the standard three-point bending girder test specimen of making by above-mentioned materials and method records-10 ℃ of fracture flexural strains, illustrate that the embodiment of the invention obtains cold to be coated with type epoxy thin layer bridge deck pavement material low temperature flexibility good.
Embodiment 4:
The cold preparation method who is coated with type epoxy thin layer bridge deck pavement material, it comprises the steps:
1) preparation of cakingagent:
1. by the shared parts by weight of each raw material be: 75 parts of Resins, epoxy, 20 parts of modified epoxies, 5 parts of thinners, choose Resins, epoxy, modified epoxy and thinner, with Resins, epoxy, modified epoxy and mixing diluents, obtain the A component;
Described Resins, epoxy is E-51 Resins, epoxy, has that oxirane value is high, viscosity is low, lighter color, is applicable to the characteristics such as caking agent, solventless coatings, gravity flow self-leveling floor material, mould material;
Described modified epoxy is the prepolymer that active epoxy thinner and bisphenol A type epoxy resin reaction form; The preparation method of prepolymer is: the parts by weight by active epoxy thinner, bisphenol A type epoxy resin are: 15 parts of active epoxy thinners, 85 parts of bisphenol A type epoxy resins, and stirring at normal temperature in stirred pot formed modified epoxy after 10～20 minutes with active epoxy thinner and bisphenol A type epoxy resin;
Described thinner is epoxy propane butyl ether, and it has overcome the shortcoming that common thinner has toxicity, easily volatilizees, has irritating smell, and the reduced viscosity of Resins, epoxy, active increase, snappiness are strengthened.
2. by the shared parts by weight of each raw material be: 20 parts of alicyclic ring amine curing agents, 10 parts of modified amine curing agents, 40 parts of curing catalysts, choose alicyclic ring amine curing agent, modified amine curing agent and curing catalyst, alicyclic ring amine curing agent, modified amine curing agent and curing catalyst are mixed, obtain the B component;
Described alicyclic ring amine curing agent is the REX-819S solidifying agent, and viscosity is low, has good physical strength, abrasion resistance;
Described modified amine curing agent is the prepolymer of binary amine solidifying agent D-2000 and epoxy toughening modifier R F-400; The preparation method of modified amine curing agent (prepolymer) is: the parts by weight by binary amine solidifying agent D-2000, epoxy toughening modifier R F-400 are: 20 parts of binary amine solidifying agent D-2000,80 parts of epoxy toughening modifier R F-400, and stirring at normal temperature in stirred pot formed modified amine curing agent after 10～20 minutes with binary amine solidifying agent D-2000 and epoxy toughening modifier R F-400; The viscosity of described binary amine solidifying agent D-2000 is low, and the polyether backbone snappiness of high molecular is strengthened, and tearing toughness improves; Described epoxy toughening properties-correcting agent is RF-400, it is a kind of high-performance epoxy resin plasticized modifier, have good toughness reinforcing performance and reactive behavior, can improve significantly the mechanical property such as shock-resistant, compression, cracking resistance and cohesive strength of epoxy resin cured product;
Described curing catalyst is curing catalyst DMP-30 and curing catalyst XTA-770, and the weight ratio of curing catalyst DMP-30 and curing catalyst XTA-770 is 20: 80; Can improve the solidification rate of Resins, epoxy, and make the flexible reinforced of cured article.
3. the weight ratio by A component and B component is 1.4: 1, chooses A component and B component, and A component and B component are mixed, and obtains cakingagent;
2) cakingagent is pressed 1kg/m
2Consumption spreads upon and forms the first glue layer on (being layered on) decking; Single-stage is joined fine aggregate by 5kg/m
2Consumption is shed in (being bonded in) glue layer formation the first single-stage and is joined the fine aggregate layer; After the cakingagent of the first glue layer solidifies (15～30 ℃ of solidification values, 1.5～6 hours set times), remove the first single-stage and join fine aggregate layer unnecessary gathering materials of surface; Join on the fine aggregate layer by 1～2kg/m in the first single-stage again
2Consumption is smeared cakingagent and is formed the second glue layer, presses 5～8kg/m in the second glue layer
2Consumption is shed single-stage and is joined fine aggregate and form the second single-stage and join the fine aggregate layer; After the cakingagent of the second glue layer solidifies (15～30 ℃ of solidification values, 1.5～6 hours set times), remove the second single-stage and join fine aggregate layer unnecessary gathering materials of surface; Join on the fine aggregate layer by 1～2kg/m in the second single-stage again
2Consumption is smeared cakingagent and is formed the 3rd glue layer, presses 5～8kg/m in the 3rd glue layer
2Consumption is shed single-stage and is joined fine aggregate and form the 3rd single-stage and join the fine aggregate layer; Behind the cakingagent completion of cure of the 3rd glue layer, adopt the aggregate recycling machine to remove unnecessary gathering materials and not firm the gathering materials that bond, obtain the cold type epoxy thin layer bridge deck pavement material (form multilayer antiskid surface mat formation layer) that is coated with of multilayer.
It is the corundum fine aggregate that described single-stage is joined fine aggregate (single-stage is joined abrasive aggregates), and Mohs' hardness is greater than 7 grades, and water content is less than 0.2wt%, and the particle diameter that single-stage is joined fine aggregate is 3～5mm.
According to " highway engineering pitch and Asphalt Mixture Experiment rules " (JTJ 052-2000), by sand patch method survey surface texture depth 1.0mm, pendulum type friction instrument actual measurement frictional coefficient is 78BPM, infiltration coefficient is 0, and the cold antiskid wear resisting property that is coated with type epoxy thin layer bridge deck pavement material that illustrates that the embodiment of the invention obtains is good, waterproof, seepage control is strong.High temperature drawing cohesive strength is 1.28MPa, illustrate that the embodiment of the invention obtains cold be coated with type epoxy thin layer bridge deck pavement material and the decking cohesive strength high.It is 3720 μ m/m that the standard three-point bending girder test specimen of making by above-mentioned materials and method records-10 ℃ of fracture flexural strains, illustrate that the embodiment of the invention obtains cold to be coated with type epoxy thin layer bridge deck pavement material low temperature flexibility good.
Claims (6)
1. the cold type epoxy thin layer bridge deck pavement material that is coated with is characterized in that it joins fine aggregate by cakingagent and single-stage and form, and cakingagent is by 1～2kg/m
2Consumption spreads upon and forms glue layer on the decking; Single-stage is joined fine aggregate by 5～8kg/m
2Consumption is shed in glue layer formation single-stage and is joined the fine aggregate layer;
Described cakingagent is mixed by A component and B component, and the weight ratio of A component and B component is (1～1.4): 1; Described A component is mixed by the raw material that includes Resins, epoxy, modified epoxy and thinner, and the shared parts by weight of each raw material are in the A component: 75～85 parts of Resins, epoxy, 15～25 parts of modified epoxies, 5～10 parts of thinners; Described B component is mixed by the raw material that includes alicyclic ring amine curing agent, modified amine curing agent and curing catalyst, the shared parts by weight of each raw material are in the B component: 20～30 parts of alicyclic ring amine curing agents, 10～20 parts of modified amine curing agents, 40～60 parts of curing catalysts;
The particle diameter that described single-stage is joined fine aggregate is 3～5mm;
Described Resins, epoxy is bisphenol A type epoxy resin, and described bisphenol A type epoxy resin is E-51 Resins, epoxy or CYD-128 Resins, epoxy;
Described modified epoxy is: the parts by weight by active epoxy thinner, bisphenol A type epoxy resin are: 10～20 parts of active epoxy thinners, 80～90 parts of bisphenol A type epoxy resins, and stirring at normal temperature in stirred pot formed modified epoxy after 10 ~ 20 minutes with active epoxy thinner and bisphenol A type epoxy resin;
Described thinner is epoxide resin reactive diluent, and epoxide resin reactive diluent is epoxy propane butyl ether or epoxidation vinyl benzene.
2. the cold type epoxy thin layer bridge deck pavement material that is coated with according to claim 1 is characterized in that: described cakingagent is by 1～2kg/m
2It is the first glue layer that consumption spreads upon the glue layer that forms on the decking, and single-stage is joined fine aggregate by 5～8kg/m
2Consumption is shed the single-stage that forms in glue layer, and to join the fine aggregate layer be that the first single-stage is joined the fine aggregate layer; Join on the fine aggregate layer by 1～2kg/m in the first single-stage
2Consumption is smeared cakingagent and is formed the second glue layer, presses 5～8kg/m in the second glue layer
2Consumption is shed single-stage and is joined fine aggregate and form the second single-stage and join the fine aggregate layer.
3. the cold type epoxy thin layer bridge deck pavement material that is coated with according to claim 2, it is characterized in that: described the second single-stage is joined on the fine aggregate layer by 1～2kg/m
2Consumption is smeared cakingagent and is formed the 3rd glue layer, presses 5～8kg/m in the 3rd glue layer
2Consumption is shed single-stage and is joined fine aggregate and form the 3rd single-stage and join the fine aggregate layer.
4. according to claim 1 and 2 or the 3 described cold type epoxy thin layer bridge deck pavement materials that are coated with, it is characterized in that: it is basalt fine aggregate, corundum fine aggregate or colored ceramic particle that described single-stage is joined fine aggregate, Mohs' hardness is greater than 7 grades, and water content is less than 0.2wt%.
5. the cold preparation method who is coated with type epoxy thin layer bridge deck pavement material as claimed in claim 1 is characterized in that it comprises the steps:
1) preparation of cakingagent:
1. by the shared parts by weight of each raw material be: 75～85 parts of Resins, epoxy, 15～25 parts of modified epoxies, 5～10 parts of thinners, choose Resins, epoxy, modified epoxy and thinner, with Resins, epoxy, modified epoxy and mixing diluents, obtain the A component;
Described Resins, epoxy is bisphenol A type epoxy resin, and described bisphenol A type epoxy resin is E-51 Resins, epoxy or CYD-128 Resins, epoxy;
Described modified epoxy is: the parts by weight by active epoxy thinner, bisphenol A type epoxy resin are: 10～20 parts of active epoxy thinners, 80～90 parts of bisphenol A type epoxy resins, and stirring at normal temperature in stirred pot formed modified epoxy after 10 ~ 20 minutes with active epoxy thinner and bisphenol A type epoxy resin;
Described thinner is epoxide resin reactive diluent, and epoxide resin reactive diluent is epoxy propane butyl ether or epoxidation vinyl benzene;
2. by the shared parts by weight of each raw material be: 20～30 parts of alicyclic ring amine curing agents, 10～20 parts of modified amine curing agents, 40～60 parts of curing catalysts, choose alicyclic ring amine curing agent, modified amine curing agent and curing catalyst, alicyclic ring amine curing agent, modified amine curing agent and curing catalyst are mixed, obtain the B component;
The weight ratio of 3. pressing A component and B component is (1～1.4): 1, choose A component and B component, and A component and B component are mixed, obtain cakingagent;
2) cakingagent is pressed 1～2kg/m
2Consumption spreads upon and forms glue layer on the decking; Single-stage is joined fine aggregate by 5～8kg/m
2Consumption is shed in glue layer formation single-stage and is joined the fine aggregate layer; Obtain the cold type epoxy thin layer bridge deck pavement material that is coated with.
6. the cold preparation method who is coated with type epoxy thin layer bridge deck pavement material according to claim 5 is characterized in that: described cakingagent is by 1～2kg/m
2It is the first glue layer that consumption spreads upon the glue layer that forms on the decking, and single-stage is joined fine aggregate by 5～8kg/m
2Consumption is shed the single-stage that forms in glue layer, and to join the fine aggregate layer be that the first single-stage is joined the fine aggregate layer;
After the cakingagent of the first glue layer solidifies, remove the first single-stage and join fine aggregate layer unnecessary gathering materials of surface; Join on the fine aggregate layer by 1～2kg/m in the first single-stage again
2Consumption is smeared cakingagent and is formed the second glue layer, presses 5～8kg/m in the second glue layer
2Consumption is shed single-stage and is joined fine aggregate and form the second single-stage and join the fine aggregate layer; Repeat this step, until total pavement thickness is 5～15mm; Behind the cakingagent completion of cure of last glue layer, adopt the aggregate recycling machine to remove unnecessary gathering materials and not firm the gathering materials that bond, obtain the cold type epoxy thin layer bridge deck pavement material that is coated with.
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| CN102584112B (en) * | 2012-03-12 | 2013-12-18 | 山西省交通科学研究院 | Epoxy asphalt concrete for roads and bridges and preparation method of epoxy asphalt concrete |
| CN103215874B (en) * | 2013-04-11 | 2015-03-04 | 同济大学 | Construction method for quickly repairing pot hole of epoxy asphalt bridge deck pavement layer |
| CN104087124B (en) * | 2014-07-25 | 2017-05-03 | 厦门双瑞船舶涂料有限公司 | Phenol aldehyde epoxy paint with chemical medium resistance and preparation method thereof |
| CN105885757A (en) * | 2016-06-17 | 2016-08-24 | 中交隧道工程局有限公司 | Modified enhanced epoxy resin adhesive and preparation method and application thereof |
| CN106145769A (en) * | 2016-06-20 | 2016-11-23 | 许昌金欧特沥青股份有限公司 | A kind of low temperature resistant Steel Bridge Deck colour pavement material |
| CN106281160B (en) * | 2016-08-08 | 2018-09-14 | 武汉拓路特铺技术工程有限公司 | A kind of normal temperature cure flexible epoxy adhesive and preparation method thereof |
| CN107915425B (en) * | 2017-11-23 | 2020-05-22 | 江苏中路交通科学技术有限公司 | Compression-resistant modified rubber aggregate macadam paving material and preparation method thereof |
| CN109627686B (en) * | 2018-10-29 | 2021-05-14 | 广东建科交通工程质量检测中心有限公司 | Thin-layer paving material suitable for wet road bridge deck and preparation method thereof |
| CN109880564B (en) * | 2019-01-23 | 2021-06-25 | 甘肃省交通规划勘察设计院股份有限公司 | Reinforced resin and preparation method and application thereof |
| CN110372295B (en) * | 2019-07-12 | 2021-02-02 | 同济大学 | High-strength high-toughness light polyurethane rubber bridge deck pavement material and preparation thereof |
| CN112391136A (en) * | 2020-04-17 | 2021-02-23 | 潼灏(上海)材料科技有限公司 | Epoxy resin composition for steel bridge deck pavement bonding layer and preparation method thereof |
| CN111705651A (en) * | 2020-06-10 | 2020-09-25 | 南京道润交通科技有限公司 | Antiskid wearing layer for steel bridge deck pavement and maintenance method |
| CN112301885A (en) * | 2020-10-23 | 2021-02-02 | 浙江毕姆项目管理有限公司 | Construction method of light steel bridge deck modified epoxy resin thin-layer anti-slip pavement layer |
| CN113754344A (en) * | 2021-09-10 | 2021-12-07 | 福建基石科技有限公司 | Cold-coating type epoxy mortar steel bridge deck pavement material and preparation method thereof |
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| WO2005063880A1 (en) * | 2003-12-30 | 2005-07-14 | Sang Yang Kim | Epoxy resin mortar composition and a method of coating the same on concrete surface |
| CN1274626C (en) * | 2004-04-13 | 2006-09-13 | 中国水利水电第十一工程局勘测设计院 | Epoxy resin mortar and preparation method |
| CN101255277B (en) * | 2008-04-10 | 2010-11-03 | 武汉理工大学 | Flexible epoxy modified asphalt material for bridge surface pavement and preparation thereof |
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