CN102173654A - 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 the highway total kilometrage is very little, but its to give the influence of the whole road network traffic capacity because of maintenance be huge.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.Because the easier formation canalized traffic at the bridge place, the layer of mating formation simultaneously is stressed more complicated, and bridge deck pavement more is easy to generate early stage damage than plain asphalt road surface, is seriously restricting its using character and life-span.Frequent 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 the road traffic transportation requires its bridge deck pavement material must satisfy durability requirement.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, adopt modified asphalt concrete to mat formation mostly.On steel box girder bridge face, because the decking distortion is big, therefore cast-type SMA bituminous concrete and epoxy asphalt concretes of adopting more.
Lot of domestic and foreign entity project application result shows that paving steel bridge deck is still world-famous puzzle.The interlayer of Steel Bridge Deck Pavement coheres and destroys and fatigue cracking that the laminar surface flexural-tensile strain of mating formation causes is the problem that emphasis is considered.This requires the paving steel bridge deck material to have good bond performance (particularly under the hot conditions) with steel bridge deck, also must have good flexibility (particularly under cold condition) simultaneously, cold cracking and fatigue cracking not take place so that can follow the gross distortion of decking.
Summary of the invention
The object of the present invention is to provide a kind of antiskid wear resisting property good, with decking cohesive strength height, cold type epoxy thin layer bridge deck pavement material and preparation method thereof that is coated with that 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 on (being bonded in) glue layer and to be formed single-stage and join 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 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 on (being bonded in) glue layer to join the fine aggregate layer be that first single-stage is joined the fine aggregate layer; Join on the fine aggregate layer by 1～2kg/m in first single-stage
2Consumption is smeared cakingagent and is formed second glue layer, presses 5～8kg/m on second glue layer
2Consumption is shed single-stage and is joined fine aggregate and form second single-stage and join the fine aggregate layer.
Described 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 on 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 oxirane value height, low, the lighter color of viscosity, is applicable to 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 an epoxide resin reactive diluent, be epoxy propane butyl ether or epoxidation vinyl benzene, it has overcome the shortcoming that common thinner has toxicity, volatilizees, has irritating smell easily, and the viscosity reduction 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 excellent mechanical intensity, 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 high-molecular weight polyether backbone snappiness 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 the mechanical property such as shock-resistant, compression, cracking resistance and cohesive strength of epoxy resin cured product significantly.
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 the flexibility of cured article is strengthened.
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 on (being bonded in) glue layer and to be formed single-stage and join 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 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 on (being bonded in) glue layer to join the fine aggregate layer be that first single-stage is joined the fine aggregate layer;
The cakingagent for the treatment of first glue layer solidifies back (15～30 ℃ of solidification values, 1.5～6 hours set times), removes first single-stage and joins that the fine aggregate laminar surface is unnecessary to gather materials; Join on the fine aggregate layer by 1～2kg/m in first single-stage again
2Consumption is smeared cakingagent and is formed second glue layer, presses 5～8kg/m on second glue layer
2Consumption is shed single-stage and is joined fine aggregate and form second single-stage and join the fine aggregate layer; Repeating this step, is 5～15mm (adopting the cold formula that is coated with to mat formation) until total pavement thickness; After treating the cakingagent completion of cure of last glue layer, adopt aggregate recovery 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, and material that it adopted 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 asphalt Marshall method to determine the sizing agent consumption; (3) preparation method adopts compound to mix and stir, pave and rolling method; (4) structure concentration in surface 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 big, does not have self-leveling, need manually carry out blade coating;
(3) the bituminous epoxy rubber cement is bigger 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 that is used for cement concrete bridge deck and steel bridge face, is the bridge deck structure protective layer with anti-skidding, waterproof, multiple function such as antirust;
(5) used gathering materials need be passed through surface treatment in advance, promptly adopts coupling agent to soak the back oven dry, and technology 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 invention cold be coated with type epoxy thin layer bridge deck pavement material temperature resistance contract the cracking and fatigue property be 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, the temperature that the peak value correspondence appears in the SMA bituminous concrete is 10 ℃.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 resistance of crack propagation energy preferably.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 the bridge own wt simultaneously, increase effective bearing capacity of bridge structure.
2, owing to adopt 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 adopted cakingagent to mix 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 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, with decking cohesive strength height, 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 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 steel bridge face with 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 homemade substantially, 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 the present invention better, 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 oxirane value height, low, the lighter color of viscosity, is applicable to 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, volatilizees, has irritating smell easily, and the viscosity reduction 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 excellent mechanical intensity, 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 high-molecular weight polyether backbone snappiness 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 the mechanical property such as shock-resistant, compression, cracking resistance and cohesive strength of epoxy resin cured product significantly;
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 the flexibility of cured article is strengthened.
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 (being layered on) decking (cement concrete bridge deck plate) and goes up the formation glue layer; Single-stage is joined fine aggregate by 8kg/m
2Consumption is shed on (being bonded in) glue layer and to be formed single-stage and join the fine aggregate layer; Obtain the cold type epoxy thin layer bridge deck pavement material that is coated with of individual layer; Treat that cakingagent solidifies back (15～30 ℃ of solidification values, 1.5～6 hours set times), cleaning earlier removes unnecessary gathering materials of surface, removes with sander and coheres not firm gathering materials, and finally forms 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 testing regulation " (JTJ 052-2000), by sand patch method survey surface texture depth 1.1mm, pendulum-type frictiograph 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, and cold type epoxy thin layer bridge deck pavement material and the decking cohesive strength height of being coated with that the embodiment of the invention obtains is described.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 oxirane value height, low, the lighter color of viscosity, is applicable to 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, volatilizees, has irritating smell easily, and the viscosity reduction 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 excellent mechanical intensity, 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 high-molecular weight polyether backbone snappiness 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 the mechanical property such as shock-resistant, compression, cracking resistance and cohesive strength of epoxy resin cured product significantly;
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 the flexibility of cured article is strengthened.
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 (being layered on) decking (16mm steel box girder bridge panel) and goes up formation first glue layer; Single-stage is joined fine aggregate by 5kg/m
2Consumption is shed on (being bonded in) glue layer and to be formed first single-stage and join the fine aggregate layer; The cakingagent for the treatment of first glue layer solidifies back (15～30 ℃ of solidification values, 1.5～6 hours set times), removes first single-stage and joins that the fine aggregate laminar surface is unnecessary to gather materials; Join on the fine aggregate layer by 2kg/m in first single-stage again
2Consumption is smeared cakingagent and is formed second glue layer, presses 5kg/m on second glue layer
2Consumption is shed single-stage and is joined fine aggregate and form 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; Treat (15～30 ℃ of solidification values behind the cakingagent completion of cure of second glue layer, 1.5～6 hours set times), adopt aggregate recovery 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 testing regulation " (JTJ 052-2000), by sand patch method survey surface texture depth 1.2mm, pendulum-type frictiograph 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, and cold type epoxy thin layer bridge deck pavement material and the decking cohesive strength height of being coated with that the embodiment of the invention obtains is described.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 oxirane value height, low, the lighter color of viscosity, is applicable to 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 an epoxy propane butyl ether, and it has overcome the shortcoming that common thinner has toxicity, volatilizees, has irritating smell easily, and the viscosity reduction 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 excellent mechanical intensity, 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 high-molecular weight polyether backbone snappiness 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 the mechanical property such as shock-resistant, compression, cracking resistance and cohesive strength of epoxy resin cured product significantly;
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 the flexibility of cured article is strengthened.
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 (being layered on) decking (20mm steel box girder bridge panel) and goes up the formation glue layer; Single-stage is joined fine aggregate by 7kg/m
2Consumption is shed on (being bonded in) glue layer and to be formed single-stage and join the fine aggregate layer; The cakingagent for the treatment of first glue layer solidifies back (15～30 ℃ of solidification values, 1.5～6 hours set times), removes first single-stage and joins that the fine aggregate laminar surface is unnecessary to gather materials; Join on the fine aggregate layer by 2kg/m in first single-stage again
2Consumption is smeared cakingagent and is formed second glue layer, presses 7kg/m on second glue layer
2Consumption is shed single-stage and is joined fine aggregate and form second single-stage and join the fine aggregate layer; The cakingagent for the treatment of second glue layer solidifies back (15～30 ℃ of solidification values, 1.5～6 hours set times), removes second single-stage and joins that the fine aggregate laminar surface is unnecessary to gather materials; Join on the fine aggregate layer by 2kg/m in second single-stage again
2Consumption is smeared cakingagent and is formed the 3rd glue layer, presses 7kg/m on 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; After treating the cakingagent completion of cure of the 3rd glue layer, adopt aggregate recovery 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 testing regulation " (JTJ 052-2000), by sand patch method survey surface texture depth 1.0mm, pendulum-type frictiograph 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, and cold type epoxy thin layer bridge deck pavement material and the decking cohesive strength height of being coated with that the embodiment of the invention obtains is described.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 oxirane value height, low, the lighter color of viscosity, is applicable to 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 an epoxy propane butyl ether, and it has overcome the shortcoming that common thinner has toxicity, volatilizees, has irritating smell easily, and the viscosity reduction 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 excellent mechanical intensity, 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 high-molecular weight polyether backbone snappiness 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 the mechanical property such as shock-resistant, compression, cracking resistance and cohesive strength of epoxy resin cured product significantly;
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 the flexibility of cured article is strengthened.
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 first glue layer on (being layered on) decking; Single-stage is joined fine aggregate by 5kg/m
2Consumption is shed on (being bonded in) glue layer and to be formed first single-stage and join the fine aggregate layer; The cakingagent for the treatment of first glue layer solidifies back (15～30 ℃ of solidification values, 1.5～6 hours set times), removes first single-stage and joins that the fine aggregate laminar surface is unnecessary to gather materials; Join on the fine aggregate layer by 1～2kg/m in first single-stage again
2Consumption is smeared cakingagent and is formed second glue layer, presses 5～8kg/m on second glue layer
2Consumption is shed single-stage and is joined fine aggregate and form second single-stage and join the fine aggregate layer; The cakingagent for the treatment of second glue layer solidifies back (15～30 ℃ of solidification values, 1.5～6 hours set times), removes second single-stage and joins that the fine aggregate laminar surface is unnecessary to gather materials; Join on the fine aggregate layer by 1～2kg/m in second single-stage again
2Consumption is smeared cakingagent and is formed the 3rd glue layer, presses 5～8kg/m on 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; After treating the cakingagent completion of cure of the 3rd glue layer, adopt aggregate recovery 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 testing regulation " (JTJ 052-2000), by sand patch method survey surface texture depth 1.0mm, pendulum-type frictiograph 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, and cold type epoxy thin layer bridge deck pavement material and the decking cohesive strength height of being coated with that the embodiment of the invention obtains is described.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 (10)
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 on glue layer and to be formed single-stage and join 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.
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 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 on glue layer to join the fine aggregate layer be that first single-stage is joined the fine aggregate layer; Join on the fine aggregate layer by 1～2kg/m in first single-stage
2Consumption is smeared cakingagent and is formed second glue layer, presses 5～8kg/m on second glue layer
2Consumption is shed single-stage and is joined fine aggregate and form 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 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 on 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 or the 2 or 3 described cold type epoxy thin layer bridge deck pavement materials that are coated with, it is characterized in that: 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.
5. according to claim 1 or the 2 or 3 described cold type epoxy thin layer bridge deck pavement materials that are coated with, it is characterized in that: 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, stirring at normal temperature in stirred pot formed modified epoxy after 10～20 minutes with active epoxy thinner and bisphenol A type epoxy resin.
6. according to claim 1 or the 2 or 3 described cold type epoxy thin layer bridge deck pavement materials that are coated with, it is characterized in that: described thinner is an epoxide resin reactive diluent, and epoxide resin reactive diluent is epoxy propane butyl ether or epoxidation vinyl benzene.
7. according to claim 1 or the 2 or 3 described cold type epoxy thin layer bridge deck pavement materials that are coated with, it is characterized in that: described alicyclic ring amine curing agent is the REX-819S solidifying agent;
Described modified amine curing agent 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, 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;
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 (20～40): (60～80).
8. according to claim 1 or the 2 or 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%.
9. 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;
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 on glue layer and to be formed single-stage and join the fine aggregate layer; Obtain the cold type epoxy thin layer bridge deck pavement material that is coated with.
10. the cold preparation method who is coated with type epoxy thin layer bridge deck pavement material according to claim 9 is characterized in that: described cakingagent is by 1～2kg/m
2It is 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 on glue layer to join the fine aggregate layer be that first single-stage is joined the fine aggregate layer;
After the cakingagent for the treatment of first glue layer solidifies, remove first single-stage and join that the fine aggregate laminar surface is unnecessary to gather materials; Join on the fine aggregate layer by 1～2kg/m in first single-stage again
2Consumption is smeared cakingagent and is formed second glue layer, presses 5～8kg/m on second glue layer
2Consumption is shed single-stage and is joined fine aggregate and form second single-stage and join the fine aggregate layer; Repeating this step, is 5～15mm until total pavement thickness; After treating the cakingagent completion of cure of last glue layer, adopt aggregate recovery 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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