CN108468280A - Old bridge floor repair materials height glues mute micro-surface area superthin layer and its application method - Google Patents

Abstract

The invention discloses a kind of old bridge floor repair materials height to glue mute micro-surface area superthin layer and its application method, including following raw material composition：Room temperature pitch complex emulsions, curing agent, gather materials and filler, water at aqueous, environmental protective polymer emulsion, and the raw material composition meter in mass ratio includes：Room temperature pitch complex emulsions：Aqueous, environmental protective polymer emulsion：Curing agent：Gather materials and filler：Water=9:1:5:95:0.5, in order to make cold-patch mixture be consistent with original ground surface material and structure, and the considerations of for bridge dead weight and cementitious matter, the present invention uses AC series gradings, at the same time the determination of miberal powder and total water consumption directly influences the intensity and consolidation effect of mixture, under the comprehensive function of combined material, aggregate grading design, water consumption and preparation process, Deck curing after the finishing is at low cost, transportation cost is low, low in the pollution of the environment, height temperature stability is good, and water stability is good, it is not easy tensile failure, facilitates application property advantage.

Description

Ultra-thin layer of high-viscosity quiet micro-surface of old bridge deck repair material and its application method

technical field

The invention relates to the technical field of road modified asphalt, in particular to an ultra-thin layer of a high-viscosity quiet micro-surface of an old bridge deck repair material and a method for using the same.

Background technique

As an important part of the bridge superstructure, the bridge deck pavement directly bears the vehicle load, beam deformation and environmental factors. While dispersing the load and participating in the stress of the bridge deck, it also protects the bridge body and Provide comfortable and safe road surface function for driving. .

Influenced by factors such as the level of early bridge construction and conditional constraints, it is often difficult to increase the bearing capacity of the lower foundation of the original bridge. In particular, the early bridge deck pavement is generally cement concrete structure. Under the influence of comprehensive factors such as local deformation, damage is easy to occur. The main reason is that the design theory and method of cement pavement are applied mechanically, and the structure of the bridge deck pavement and the overall deformation characteristics of the bridge are not considered; Reflect it in the material ratio design; the lack of functional design research on the damage characteristics of bridge deck pavement makes the design and application disconnected, resulting in the structure often not reaching the design service life; material optimization for different bridge engineering and environmental characteristics The research on the composition design is insufficient, and there are no specific requirements for the mechanical properties, durability and deformation performance indicators that the bridge deck pavement materials should have in normal use, and the requirements for the control indicators of the cement concrete materials are too low.

However, with the heavy traffic volume and the increase of heavy vehicles, various diseases appear in the pavement of the bridge deck. Hot asphalt mixture cannot be used for repairs in time, and under the continuous rolling and impact of vehicle loads, the disease will deepen and expand rapidly, especially in areas with a long southern season. After the rainy season, the disease can be aggravated by 7-8 times; 2 .After potholes appear on the road surface, when the vehicle is driving on the damaged road surface, the motor vehicle will increase the vehicle wear and fuel consumption due to emergency braking, bumps, etc., which will increase the transportation cost by 10%-15%; while the traditional repair pavement layer Methods such as thickening the newly repaired concrete surface or laying hot asphalt, etc., have conflicts between layer thickness, load, and design elevation, and the smoky repair environment is poor when laying hot asphalt, and the labor intensity of repair workers is high. There is environmental pollution.

In view of this, the present invention is proposed.

Contents of the invention

Aiming at the problems existing in the prior art, the purpose of the present invention is to provide an ultra-thin layer of high-viscosity and quiet micro-surface of the old bridge deck repair material and its application method. The repaired bridge deck has low maintenance cost, low transportation cost and environmental protection. Less pollution, saving materials, good high temperature stability, good low temperature crack resistance, good water stability, not easy to stretch and damage, convenient construction, effectively repair the bridge deck pavement without damage, and open traffic quickly after repair , to ensure smooth traffic.

In order to achieve the above object, the present invention provides an ultra-thin layer of high-viscosity and quiet micro-surface for old bridge deck repair materials and its use method, which includes the following raw materials: normal temperature asphalt composite emulsion, water-based environmentally friendly polymer emulsion, curing agent, Materials and fillers, water, the composition of the raw materials includes: normal temperature asphalt composite emulsion: water-based environmentally friendly polymer emulsion: curing agent: aggregate and filler: water = 9:1:5:95:0.5.

Preferably, the applicable temperature range of the room temperature asphalt composite emulsion is -40°C ~ +40°C

Preferably, the normal temperature asphalt composite emulsion meets its technical indicators: remaining amount on the sieve (1.18mm sieve): 0; particle charge is cationic (+); demulsification speed slow cracking; Engua viscosity E25: 21; asphalt standard viscosity C25, 3:33s; evaporation residue content: 63.3%, evaporation residue penetration (100g, 25°C, 5s) (0.1mm): 75, evaporation residue softening point: 74.0°C, evaporation residue ductility ( 5°C): 25.1cm, solubility of evaporation residue (trichloroethylene): 99.3%; 1d storage stability: 0%; 5d storage stability: 1%;

Preferably, the water-based environmentally friendly polymer emulsion has a solid content of 45-50%, a specific gravity of 1.06g/ml, a pH value of 4-8, and contains the following components in parts by weight: methyl methacrylate-butadiene-benzene 40-50 parts of vinyl resin emulsion, 10-20 parts of amphiphilic acrylamide-styrene block copolymer;

Preferably, the gradation of the aggregates is AC-10, the aggregate particle diameters are 4.75-9.5mm, 2.36-4.75mm, 0-2.36mm, and the mineral powder particle diameter is 0-0.6mm;

Preferably, the coarse aggregate in the aggregate meets its technical indicators: apparent relative density ≥ 2.50t/m ³ , water absorption ≤ 3%, gravel crushing value ≤ 28%, Los Angeles abrasion value ≤ 30%, The content of needle flake particles is ≤20%, the content of particles less than 0.075mm is ≤1%, the content of soft particles is ≤5%, and the firmness is ≤12%. The fine aggregate in the aggregate meets its technical indicators: apparent relative density ≥ 2.45t/m ³ , sand equivalent ≥ 50%;

Preferably, the following steps are included:

(1) Before construction, ensure that the lower base surface is free of dust, and keep it clean and moist before laying. The joints have been pasted with 1-2cm wide construction tape; the construction temperature is 10°C-35°C; it is predicted that it will not rain for 2-3 hours after construction;

(2) The thickness of the bottom layer is not calculated, but the amount of material is calculated according to 1mm. After mixing, use a scraping tool to scrape hard against the ground so as to compact and fill the pitted surface and gap damage of the old road surface; the material should be mixed for at least 3-4 Minutes to uniformity; Construction scraping requires a certain force, close to the base surface and scrape flat; Apply the surface layer after the surface of the bottom layer is dry;

(3) Calculate the amount of material for the surface layer according to 3-5mm, and divide the construction area by block. The amount of each block is about 3-5m ² , and then measure and mix the material, or mix the material according to the area of the old concrete plate; Stir for at least 3-5 minutes until uniform; construction scraping requires a certain force, close to the base surface and scrape flat;

(4) After the initial setting of the surface layer, grooves and roughening are made, and various construction tapes are uncovered at the same time to complete the paving;

(5) Paving and rolling the surface course;

(6) Carry out health preservation on the surface layer, 4-5 hours in normal weather, 18-20 hours in winter on the right side, and 4-5 hours on the left side, then traffic can be opened;

Preferably, during the construction of the step (1), the base surface is sprayed with diluted latex or wet base surface, and high temperature construction must pay attention to keep the base surface moist;

Preferably, mixing technique in step (3), comprises the following steps:

1) According to the mixing capacity of the mixing equipment, determine the mixing quantity of each plate;

2) Calculate the actual mixing weight of each material according to the grading ratio, combined with the mixing quantity set for each tray;

3) Determine the order of adding materials: aggregate - mineral powder, curing agent - aggregate, pay attention to the addition of mineral powder and curing agent;

4) Add water to the asphalt emulsion, add water-based environmentally friendly polymer emulsion and anti-stripping agent according to the set ratio, and fully stir;

5) Dry mix the aggregate with mineral powder and curing agent for 2 minutes, then add the solution of asphalt and water, and stir for 30 seconds.

Provided by the present invention has the following beneficial effects:

1. The present invention uses cold-mixed mixture, which breaks through the limitation of construction temperature of the pavement repair method of Chuanfo, effectively avoids the environmental pollution caused by hot-mix asphalt, reduces the labor intensity of repair personnel, and can timely repair the damage that occurs on the road surface After the rolling is completed, after the normal temperature asphalt composite emulsion is emulsified and solidified, the vehicle traffic will not be affected by the repair construction of the bridge deck, effectively avoiding the expansion and deepening of the disease, effectively reducing environmental pollution, reducing energy consumption, saving resources, and extending Repair bridge deck life.

2. The requirements for stone materials are relatively low. Both acidic stones and alkaline stones can be used, and they can be taken at any time to reduce waste. This will expand the source of materials for pavement repairs and reduce repair costs. Compared with new bridges Surface pavement, the cost is basically the same, but the service life is prolonged, and the technical indicators of high and low temperature stability, water stability, stretchability, and constructability are greatly improved compared with traditional hot mix asphalt mixtures.

Detailed ways

The present invention will be further described below in conjunction with specific embodiments, so as to help understand the content of the present invention.

An old bridge deck repair material provided by the present invention has a high-viscosity and quiet micro-surface ultra-thin layer. Its raw material composition includes normal temperature asphalt composite emulsion, water-based environmental protection polymer emulsion, curing agent, aggregates and fillers, and water. The raw material composition In terms of mass ratio, it includes: normal temperature asphalt composite emulsion: water-based environment-friendly polymer emulsion: curing agent: aggregate and filler: water = 12:1.2:2:9. The applicable temperature range of normal temperature asphalt composite emulsion is -40℃～+40℃. Normal temperature asphalt composite emulsion meets its technical indicators: residual amount on sieve (1.18mm sieve): 0; particle charge is cationic (+); demulsification speed slow cracking; Engua viscosity E ₂₅ : 21; asphalt standard viscosity C _25,3 : 33s; evaporation residue content: 63.3%, evaporation residue penetration (100g, 25°C, 5s) (0.1mm): 75, evaporation residue softening point: 74.0°C, evaporation residue ductility (5°C) : 25.1cm, evaporation residue solubility (trichlorethylene): 99.3%; 1d storage stability: 0%; 5d storage stability: 1%.

The solid content of the water-based environmentally friendly polymer emulsion is 45-50%, the specific gravity is 1.06g/ml, and the pH value is 4-8; the source of the water-based environmentally friendly polymer emulsion is Nantong Fulunli New Material Co., Ltd., which contains the following components by weight : 40-50 parts of methyl methacrylate-butadiene-styrene resin emulsion, 10-20 parts of amphiphilic acrylamide-styrene block copolymer.

The gradation of aggregates adopts AC-10, the aggregate particle size is 4.75-9.5mm, 2.36-4.75mm, 0-2.36mm, and the mineral powder particle size is 0-0.6mm. The coarse aggregate in the aggregate meets its technical indicators: apparent relative density ≥ 2.50t/m ³ , water absorption ≤ 3%, crushing value of crushed stone ≤ 28%, Los Angeles abrasion value ≤ 30%, content of needle-like particles ≤20%, the content of particles less than 0.075mm is ≤1%, the content of weak particles is ≤5%, and the firmness is ≤12%; the fine aggregate in the aggregate meets its technical indicators: apparent relative density ≥2.45t/ ^m3 , sand equivalent ≥ 50%.

The dynamic stability of the ultra-thin layer material at the high-viscosity quiet micro-surface is ≥2400 times/mm, the bending and tensile strain is ≥2500με, the residual stability is ≥70%, and the freeze-thaw splitting strength ratio is ≥70%.

Main equipment used in the present invention:

(1) Mixing equipment in the back field: a 350-type drum-type conventional cement concrete mixer (the maximum amount of mixture that can be mixed at one time is about 600kg), a weighing scale for weighing, 3 bucket trucks for weighing and transporting aggregates, A number of barrels for measuring and transporting asphalt emulsion, as well as barrels for measuring and transporting water, mineral powder and curing agent;

(2) Front field paving and rolling equipment: 1 small runway paver, 1 6-8 ton steel wheel roller;

(3) Loading and transportation: 1 forklift.

A method for using the ultra-thin layer of the high-viscosity quiet micro-surface of the old bridge deck repair material provided by the present invention comprises the following steps:

1. Construction materials and ratio

(1) Carry out base surface treatment to the old bridge deck in advance, and pave waterproof stress bonding material, and the construction dosage is 1.5kg/m ² ;

(2) Grading of AC-10

(3) Design ratio (mass ratio)

Room temperature asphalt composite emulsion: water-based environmentally friendly polymer emulsion: curing agent: aggregate and filler: water = 9:1:5:95:0.5:

(4) Actual mixing weight ratio

Room temperature asphalt composite emulsion 22.5kg + water-based environmentally friendly polymer emulsion 2.5kg + curing agent 12.5kg + aggregate and filler 237.5kg + water 1.5kg;

(5) Aggregate: diorite;

(6) Mineral powder: conventional alkaline mineral powder;

(7) Anti-stripping agent: 0.4% normal temperature asphalt composite emulsion, brown-black viscous.

2. Construction technology

(1) Mixing process:

1) According to the mixing capacity of the mixing equipment, calculate and determine the mixing quantity per plate, and the test set quantity is 300kg;

2) Calculate the actual mixing weight of each grade of material according to the grading ratio, combined with the mixing quantity set for each tray;

3) According to the principle that each person is responsible for his own responsibility, a group of people is responsible for a material and distributes it;

4) In order to facilitate the work, the material aggregation is carried out by the volume method, that is, according to the weight of each material in each plate, it is first weighed, marked, and then batched and transported according to the marked volume;

5) Material addition: In order not to cause problems such as agglomeration, the order of material addition is: aggregate-mineral powder, curing agent-aggregate, and pay attention to the addition of mineral powder and curing agent;

6) Water is first added to the asphalt emulsion;

7) Add water-based environmentally friendly polymer emulsion and anti-stripping agent to the room temperature asphalt composite emulsion according to the set ratio, and fully stir;

8) Mixing time: dry mix the aggregate, mineral powder and curing agent for 2 minutes, then add the solution of room temperature asphalt composite emulsion and water, and stir for 30 seconds;

9) Pay attention to observe the discharge, as long as the mixture is brown, it can be dispersed into granules, but there is water and wet, otherwise adjust the water amount;

10) Important attention: it is best to mix in a cool place without sunlight to prevent the moisture of the finished product from volatilizing and causing premature demulsification;

11) The loading truck should also pay attention to avoid sunlight exposure and moisture loss of finished products.

(2) Paving and rolling process:

1) Set the virtual shop coefficient to 3.4cm;

2) Paving: according to the paving process of conventional hot asphalt mixture;

3) Rolling: firstly carry out steel wheel compaction, 2-4 times, and then rubber wheel compaction 6 times, without steel wheel finishing;

4) Construction of the bonding layer before paving and rolling: 4 hours before paving, scrape and apply the waterproof bonding layer, and then carry out surface layer paving construction after demulsification and consolidation.

3. Open transportation for health preservation

(1) Conventional health preservation: when the temperature is higher than 15 degrees, the humidity is less than 65%, and the sun is sunny, the health preservation is 4-5 hours, and the traffic can be opened;

(2) The actual health preservation of this project: Since the construction is in winter, the temperature is low, there is no sunshine, and the humidity is high, so the health preservation time on the right is 18-20 hours, and the health preservation on the left is about 4 hours (because the temperature is 15 degrees at noon that day, there is sunshine close);

(3) Full construction time control: within 2-3 hours.

4. After measurement, the asphalt film thickness of the ultra-thin layer at the high-viscosity and quiet micro-surface of the above-mentioned old bridge deck repair material obtained from the high-viscosity and quiet micro-surface is 14.5 μm, which has good looseness. The surface friction coefficient is 0.73; the high temperature stability index is shown in Table 1, the low temperature stability index is shown in Table 2, the water stability index is shown in Table 3, and the stretchability index is shown in Table 4 Show.

Table 1 Rutting test results

Grading Specimen deformation 1(mm) Specimen deformation 2(mm) Dynamic stability (times/mm) requirements AC-10 1.153 1.326 3642.5 ≥2400

Table 2 Rutting test results

Table 3 water stability test results

Table 4 tensile test results

temperature(℃) Tensile stress (MPa) Tensile strain (με) Tensile modulus (MPa) 0 0.9244 7154.1 129.21 -5 0.6344 8104.1 78.28 -10 1.33268 4851.7 274.68

Example 2

Restoration plan: Ultra-thin layer on the high-viscosity and quiet surface, the grade is AC-10, and the design thickness is 3cm.

1. Construction materials and ratio

(1) Carry out base surface treatment to the old bridge deck in advance, and pave waterproof stress bonding material, and the construction dosage is 1.5kg/m ² ;

(2) Grading of AC-10

(3) Design ratio (mass ratio)

Ordinary hot mix asphalt: curing agent: aggregate and filler: water = 10.5:5:95:5;

(4) Actual mixing weight ratio

Ordinary hot mix asphalt 26.5kg + curing agent 12.5kg + aggregate and filler 237.5kg + water 10kg;

(5) Aggregate: diorite;

(6) Anti-stripping agent: 0.4% normal temperature asphalt composite emulsion, brown-black viscous.

2. The construction technology and health-preserving open traffic are consistent with those in Embodiment 1.

3. After measurement, the surface friction coefficient of the asphalt mixture is 0.62, the high temperature stability index is shown in Table 5, the low temperature stability index is shown in Table 2, the water stability index is shown in Table 6, and the stretchability index is shown in Table 7.

Table 5 Rutting test results

Grading Specimen deformation 1(mm) Specimen deformation 2(mm) Dynamic stability (times/mm) requirements AC-10 1.231 1.444 2964.3 ≥2400

Table 6 Low temperature bending test results

Table 7 water stability test results

Table 8 tensile test results

temperature(℃) Tensile stress (MPa) Tensile strain (με) Tensile modulus (MPa) o 0.7496 6594.8 113.67 -5 0.4521 7474.6 60.49 -10 1.1256 4161.7 270.47

In summary, with regard to surface characteristics, the friction coefficient of room temperature asphalt composite emulsion mixture is greater than that of hot mix asphalt mixture, indicating that the surface characteristics of room temperature asphalt composite emulsion mixture are better than that of hot mix asphalt mixture.

Regarding the comparison of high temperature stability in Table 1 and Table 5, the rutting dynamic stability of the two asphalt mixtures all meet the requirements of the hot mix modified asphalt mixture, indicating that the normal temperature asphalt composite emulsion mixture has good high temperature stability. The stability of room temperature asphalt composite emulsion mixture is greater than that of hot mix asphalt mixture.

Regarding the low-temperature stability comparison in Table 2 and Table 6, the bending strain of the two asphalt mixtures meets the requirements of ordinary hot-mix asphalt mixtures in severe winter regions, indicating that the normal-temperature asphalt composite emulsion mixture has good low-temperature crack resistance. The bending strain of normal temperature asphalt composite emulsion mixture is larger than that of hot mix asphalt mixture.

Regarding the water stability comparison table 3 and table 7, (1) the residual stability and freeze-thaw splitting strength ratio of the two kinds of asphalt mixtures have reached the requirements of domestic research institutes, reaching more than 80%, far greater than 70% , indicating that the room temperature asphalt composite emulsion mixture has good water stability. (2) Compared with hot mix asphalt mixture, the water immersion residual stability of epoxy emulsified asphalt cold patch mixture has reached the requirements of ordinary hot mix asphalt mixture, and the freeze-thaw splitting strength ratio is slightly insufficient, but it can also reach Requirements for hot mix matrix asphalt mixtures in semi-dry areas. Therefore, epoxy emulsified asphalt cold patching mixture can be applied to pavement patching in different climate zones.

Regarding the comparison of tensile properties in Table 4 and Table 8, the tensile modulus of the two mixtures reaches the minimum value at -5°C, and the tensile modulus of the room temperature asphalt composite emulsion mixture is higher than that of the hot mix asphalt mixture, indicating that the former The latter has stronger tensile strength.

In order to keep the cold patching mixture consistent with the original pavement material and structure, and for the consideration of bridge self-weight and cementing material, the present invention adopts AC series gradation. At the same time, the determination of mineral powder and total water consumption directly affects the mixing The strength and compaction effect of the material. In addition, the preparation process of asphalt mixture is crucial to road performance. Under the comprehensive effects of composite materials, mineral material gradation design, water consumption and preparation process, the repaired bridge deck has low maintenance cost, low transportation cost, less environmental pollution, material saving, good high and low temperature stability, and water stability Good, not easy to stretch and damage, convenient construction and maintenance, good economic benefits and other advantages.

In this paper, specific examples are used to illustrate the inventive concept in detail, and the descriptions of the above embodiments are only used to help understand the core idea of the present invention. It should be pointed out that for those skilled in the art, any obvious modification, equivalent replacement or other improvement should be included in the protection scope of the present invention without departing from the inventive concept.

Claims (9)

1. a kind of old bridge floor repair materials height glues mute micro-surface area superthin layer, which is characterized in that formed including following raw material：Room temperature Pitch complex emulsions, curing agent, gather materials and filler, water at aqueous, environmental protective polymer emulsion, raw material composition meter packet in mass ratio It includes：Room temperature pitch complex emulsions: aqueous, environmental protective polymer emulsion: curing agent: gathering materials and filler: water=9: 1: 5: 95: 0.5.

2. a kind of old bridge floor repair materials height according to claim 1 glues mute micro-surface area superthin layer, which is characterized in that institute State ranging from -40 DEG C~+40 DEG C of the Applicable temperature of room temperature pitch complex emulsions.

3. a kind of old bridge floor repair materials height according to claim 2 glues mute micro-surface area superthin layer, which is characterized in that institute It states room temperature pitch complex emulsions and meets its technical indicator：Surplus (1.18mm sieves) on sieve：0；Particle charging is cationic (+)； De-emulsification speed is split slowly；En Gela viscosity E25：21；Design asphalt viscosity C25,3：33s；Evaporated residue content：63.3%, it steams Send out residue needle penetration (100g, 25 DEG C, 5s) (0.1mm)：75, evaporated residue softening point：74.0 DEG C, evaporated residue ductility (5℃)：25.1cm, evaporated residue solubility (trichloro ethylene)：99.3%；1d bin stabilities：0%；5d bin stabilities： 1%.

4. a kind of old bridge floor repair materials height according to claim 1 glues mute micro-surface area superthin layer, which is characterized in that institute It is 45-50%, proportion 1.06g/ml, pH value 4-8 to state aqueous, environmental protective polymer emulsion solid content, contains following parts by weight group Point：40~50 parts of methyl methacrylate-butadiene-styrene resin lotion, Amphiphilic Acrylamide-styrene block copolymer 10~20 parts.

5. a kind of old bridge floor repair materials height according to claim 1 glues mute micro-surface area superthin layer, which is characterized in that institute It is 4.75~9.5mm, 2.36~4.75mm, 0~2.36mm, miberal powder grain size 0- to state the grading gathered materials and use AC-10, aggregate size 0.6mm。

6. a kind of old bridge floor repair materials height according to claim 5 glues mute micro-surface area superthin layer, which is characterized in that institute It states the coarse aggregate in gathering materials and meets its technical indicator：Apparent relative density >=2.50t/m³, water absorption rate≤3%, rubble crush values ≤ 28%, Los Angeles wearing valve≤30%, flat-elongated particles content≤20% is less than 0.075mm granule content≤1%, weak Granule content≤5%, robustness≤12%；It is described gather materials in fine aggregate meet its technical indicator：Apparent relative density >= 2.45t/m³, sand equivalent >=50%.

7. gluing the user of mute micro-surface area superthin layer according to a kind of any old bridge floor repair materials height of claim 1-6 Method, which is characterized in that include the following steps：

(1) it should ensure that lower basal plane free from dust before construction, keep clean moist before being laid with, existing crack has been carried out at the cementation of fissures Reason, the construction boundary construction adhesive tape sticking of 10-20cm wide have used the construction adhesive tape of 1-2cm wide at the transverse joint of construction, longitudinal joint It pastes；Temperature construct at 10 DEG C -35 DEG C；It will not rain within 2-3 hours after prediction construction；

(2) calculated thickness, calculating quantity of material are not calculated bottom by 1mm, and blade coating tool, patch ground is used firmly to scrape after mix, so as to Pitted skin, the gap damage of old pavement are filled up in compacting；Material at least mix 3-4 minutes is to uniform；Construction blade coating wants certain power Amount, is close to basal plane and strikes off；Construction surface layer after bottom surface drying；

(3) face layer calculates material utilization amount by 3-5mm, and divides every piece of construction area by block and probably press 3-5m²Dosage, then carry out material The metering of material and mix, or press old concrete plate area dosage mix material；Material at least mix 3-5 minutes is to uniform；It applies Work blade coating wants certain strength, is close to basal plane and strikes off；

(4) cutting, plucking after the initial set of face layer, while various construction adhesive tapes are opened, complete making；

(5) opposite layer carries out decking and rolling；

(6) opposite layer progress health, conventional weather health 4-5 hours, winter right width health 18-20 hours, left width health 4-5 are small When, you can open to traffic.

8. a kind of old bridge floor repair materials height according to claim 7 glues the application method of mute micro-surface area superthin layer, It is characterized in that, when the step (1) is constructed, basal plane sprays diluted latex or moistening basal plane, construction at high temperature must be noted that keep Basal plane is moist.

9. a kind of old bridge floor repair materials height according to claim 8 glues the application method of mute micro-surface area superthin layer, It is characterized in that, blending craft in step (3) includes the following steps：

1) according to the ability of mixing and stirring of mixing apparatus, determining often disk mixes and stirs quantity；

2) according to grading ratio, quantity is mixed and stirred in conjunction with the setting of every disk, every grade of material of calculating actually mixes and stirs weight；

3) order of addition of material is determined：Gather materials-miberal powder, curing agent-gather materials, notice that miberal powder, curing agent scatter addition；

4) it adds water in asphalt emulsion, according to setting ratio, aqueous, environmental protective polymer emulsion, antistripping agent is added, and carry out It is sufficiently stirred；

5) gather materials and miberal powder, curing agent dry mixing 2 minutes, add the solution of pitch and water, be stirred for 30s.