CN104846737A - Flexible freeze-thaw resistance treatment method for highway bridge expansion joints in seasonal frozen soil region - Google Patents
Flexible freeze-thaw resistance treatment method for highway bridge expansion joints in seasonal frozen soil region Download PDFInfo
- Publication number
- CN104846737A CN104846737A CN201510245034.1A CN201510245034A CN104846737A CN 104846737 A CN104846737 A CN 104846737A CN 201510245034 A CN201510245034 A CN 201510245034A CN 104846737 A CN104846737 A CN 104846737A
- Authority
- CN
- China
- Prior art keywords
- parts
- concrete
- flexible
- agent
- hours
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Road Paving Structures (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a flexible freeze-thaw resistance treatment method for highway bridge expansion joints in a seasonal frozen soil region and belongs to a maintenance and treatment method for the traffic road bridge broken maurer joints. The method includes: chiseling off the broken concrete of the original anchorage zone, clearing the original concrete materials, pouring the high-performance wear-corrosion resistance concrete, filling the flexible filling materials in the boundary beam maurer expansion joints, wherein the initial setting time of the filleting materials is 3-5 hours, and the consolidation time is 25-30 days, and ending the treatment. The flexible freeze-thaw resistance treatment method for the highway bridge expansion joints in the seasonal frozen soil region can improve the anchorage performance of the maurer joints, resists the freeze and thaw, prevents the water seepage and earth leakage, solves the problem that the expansion joints of the road bridge often occur, achieves the joint sealing purpose by direct embedding of the flexible wear-corrosion resistance filler in the joints, is simple in treatment method, and not only can prevent the water seepage and earth leakage of the expansion joint, but also is free of freeze and thaw in winter.
Description
Technical field
The invention belongs to traffic route bridge failure hair and strangle seam maintenance process method.
Background technology
Frozen Area bridge on highway expanded joint structure is all generally maurer expansion seal 1 ', as Fig. 2, comprise anchorage zone 5, bridge deck pavement 7, embedded bar 11, structure muscle 8 and anchor bar 10 is had in anchorage zone, steel plate 9 is fixedly connected with anchor bar, side bar 4 is connected with Interal fixation, V-type waterstop sealing bar 3 ' is had between two relative side bars, two design principless of maurer expansion seal are " rigidity anchoring " and " water-tight ", be difficult to realize two principle at Frozen Area actual motion, there is following problems:
1. there is the not good problem of anchoring effect in rigidity anchoring, and shrinkage joint side bar tilts sometimes, not only affects vehicle operating, may also generation accident;
2. side bar adopts general concrete anchoring usually, and anti scuffing and durability are not enough, regularly occurs concrete decortication phenomenon;
3.V shape waterstop sealing bar fills the handstone of asphalt concrete pavement, sand and the soil body, and annual cleaning is very inconvenient;
4. winter ice and snow, Snow Agent is all deposited in V-arrangement sealing, especially freeze thawing in the spring and autumn alternate period, wheel weight is directly delivered on V-arrangement sealing by ice and snow, directly causes water slop failure.
Be more unmanageable at Frozen Area bridge expanssion joint, running maintenance, both affected traffic, also there is safe hidden danger.
Conventional treatment method is cleared up damage zone, former shrinkage joint, more again according to original pattern process, result is the repetition of previous problem.
Summary of the invention
The invention provides the flexible freeze thawing resistance processing method in bridge on highway shrinkage joint, a kind of Frozen Area, to solve road bridge shrinkage joint because of regular damage and maintenance effect problem of poor.
The technical scheme that the present invention takes comprises the following steps:
(1), cut the damaged concrete in former anchorage zone, remove former concrete material, cast high-performance abrasion-proof erosion concrete,
Described high-performance abrasion-proof erosion concrete comprises the raw material of following weight portion:
General purpose portland cement PO42.5 700 ~ 1000 parts,
I grade 0 ~ 300 part, flyash,
Ternary polymerization fiber 0 ~ 10 part,
Silicon ash, SiO2 content is greater than 90%, specific area at 13000 square metres/kilogram ~ 20000 square metres/kilogram 0 ~ 100 part,
Medium coarse sand 2000 ~ 3000 parts,
2000 ~ 3300 parts, stone,
300 ~ 460 parts, water,
Complex material comprises the raw material of following ratio of weight and number:
High-efficiency water-reducing agent of poly-carboxylic acid 60 ~ 150 parts,
Air entraining agent 0.03 ~ 3 part,
Silicones polyethers emulsion 0.02 ~ 4 part
Thick plasticity-maintaining agent falls in low viscosity, viscosity 50 ~ 100cps 0 ~ 5 part,
Naphthalenesulfonate formaldehyde condensation compound 0 ~ 12 part
Mortar partner 2 ~ 15 parts,
High-performance abrasion-proof erosion concrete of the present invention also comprises:
Defoamer 2 ~ 20 parts,
Waterproof agent 2 ~ 20 parts,
After pouring concrete of the present invention completes, before initial set, remove surface moisture, 30 ~ 60 parts, spray infiltration intercrystalline masterbatch dry powder, or 100 ~ 160 parts, base infiltration intercrystalline material dry powder of cementing, then roll light, form topping;
(2), flexible filling material between side bar maurer expansion seal
(1) agent of wire brush brush liquid steel iron surface derusting phosphating is adopted between the maurer expansion seal of side bar, rust cleaning phosphatization, 1 ~ 2 time;
The agent of described liquid steel iron surface derusting phosphating is made up of the raw material of following masses parts by volume:
Oxalic acid 3 ~ 10 parts,
Phosphatase 24 ~ 10 part,
Hexamethylenetetramine 1 ~ 18 part,
Organobentonite 2 ~ 12 parts,
55 ~ 80 parts, water,
(2) maurer expansion seal surface residual debris is removed, brushing interfacial agents;
Described interfacial agents is made up of the raw material of such as following mass fraction:
Cyanate semi-prepolymer 1000 parts;
Steric hindrance type polyethers and amine terminated polyether diamine chain stretching agent mixture 600 ~ 1300 parts;
Brushing is started after stirring;
(3) installation form between the maurer expansion seal of side bar, side spreads polyethylene sheeting on the template, and this polyethylene sheeting injects caulking material, and caulking material injecting height is apart from 1 millimeter, side bar top;
Described caulking material is obtained by the raw material of following masses part and step:
First material: prepared by polyether-type polyisocyanates (NCO) base polyurethane prepolymer for use as:
PPG PPE 200 ~ 1000 parts,
Toluene diisocyanate vinegar TDI 200 ~ 1500 parts,
Dibutyl phthalate 100 ~ 1500 parts,
Ultra-violet absorber A, septichen phenyl ester 1 ~ 8 part,
Ultra-violet absorber B, 2,4-DihydroxyBenzophenone 1 ~ 8 part,
Antioxidant, 2,6-, tri-grades of butyl-4-methylphenols 1 ~ 8 part,
PPG PPE, ultra-violet absorber A, ultra-violet absorber B, antioxidant are mixed by a certain percentage, heat to 130 ~ 150 DEG C, vacuum dehydration 2 ~ 3 hours, be cooled to 43 DEG C ~ 45 DEG C, add a certain proportion of toluene diisocyanate vinegar TDI high-speed stirred under nitrogen protection and after 0. 5 hours, be warming up to 78 DEG C ~ 82 DEG C, continue reaction 3 hours, analyze after NCO content reaches theoretical value by di-n-butylamine method and stop reaction, be cooled to 45 DEG C, add dibutyl phthalate and mix 0. 5 hours, namely obtain first material;
If less demanding to adhesion strength, add precipitated calcium carbonate 250 ~ 500 parts in right amount; Acetone stirring can be added as adjusted viscosity;
Second material: quartz powder 15 ~ 35 parts, 15 ~ 40 parts, flyash, asphalt emulsion 25 ~ 50 parts, thin oil 8 ~ 10 parts;
The preparation method of described asphalt emulsion is as follows:
100# pitch 1000 parts,
Emulsifier, two, tributyl phenol APEO (C4H9)--O (EO) nH 8 ~ 100 parts,
Compatilizer XRJ-10 1 ~ 20 part,
Compatilizer ST-2 1 ~ 20 part,
By 100# asphalt heating to 120 ~ 130 DEG C, add emulsifier, two kinds of compatilizers, enter high-speed stirred 5 ~ 8 min and obtain asphalt emulsion;
According to first, second material with 1:2 ~ 1:4 mixing, flexibility increases with second material and increases, and during construction, with water preheat 40 ~ 80 DEG C before stirring, first material and second material can obtain better bond effect;
(3) 3 ~ 5 hours caulking material initial setting times, consolidation time 25 ~ 30 days, process terminates.
The present invention a kind ofly improves the processing method of flexible joint seal that hair strangles seam anchoring property and freeze-thawing resistant, percolation-proof, leakage soil, solves the regular destruction problem in road bridge shrinkage joint.By being directly embedded in flexible anti scuffing filler at seam, reach joint seal object, this processing method technology is simple, not only prevents shrinkage joint from seeping water and leaks soil, and there will not be freeze-thaw damage in the winter time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of existing maurer expansion seal in background technology.
Detailed description of the invention
Following examples of the present invention maurer expansion seal structure to be processed is: comprise anchorage zone, bridge deck pavement 7, and in anchorage zone, have embedded bar 11, structure muscle 8 and anchor bar 10, steel plate 9 is fixedly connected with anchor bar, and side bar 4 is connected with Interal fixation.
Embodiment 1
Comprise the following steps:
One, cut the damaged concrete in former anchorage zone, remove former concrete material, cast high-performance abrasion-proof erosion concrete 5,
Described high-performance abrasion-proof erosion concrete comprises the raw material of following weight portion:
General purpose portland cement PO42.5 700 parts,
Medium coarse sand 2000 parts,
2000 parts, stone,
300 parts, water,
Complex material comprises the raw material of following ratio of weight and number:
High-efficiency water-reducing agent of poly-carboxylic acid 60 parts,
Air entraining agent 0.03 part,
Silicones polyethers emulsion 0.02 part
Mortar partner 2 parts,
(2), flexible filling material between side bar maurer expansion seal
(1) agent of wire brush brush liquid steel iron surface derusting phosphating is adopted between the maurer expansion seal of side bar, rust cleaning phosphatization, 1 time;
The agent of described liquid steel iron surface derusting phosphating is made up of the raw material of following masses parts by volume:
Oxalic acid 3 parts,
Phosphatase 24 part,
Hexamethylenetetramine 1 part,
Organobentonite 2 parts,
80 parts, water,
(2) maurer expansion seal surface residual debris is removed, brushing interfacial agents;
Described interfacial agents is made up of the raw material of such as following mass fraction:
Cyanate semi-prepolymer 1000 parts;
Steric hindrance type polyethers and amine terminated polyether diamine chain stretching agent mixture 600 parts;
Brushing is started after stirring;
(3) installation form 1 between the maurer expansion seal of side bar 4, side's paving polyethylene sheeting 2, this polyethylene sheeting injects caulking material 3 on the template, and caulking material injecting height is apart from 1 millimeter, side bar top;
Described caulking material is obtained by the raw material of following masses part and step:
First material: prepared by polyether-type polyisocyanates (NCO) base polyurethane prepolymer for use as:
PPG PPE 200 parts,
Toluene diisocyanate vinegar TDI 200 parts,
Dibutyl phthalate 100 parts,
Ultra-violet absorber A, septichen phenyl ester 1 part,
Ultra-violet absorber B, 2,4-DihydroxyBenzophenone 1 part,
Antioxidant, 2,6-, tri-grades of butyl-4-methylphenols 1 part,
PPG PPE, ultra-violet absorber A, ultra-violet absorber B, antioxidant are mixed by a certain percentage, heat to 130 DEG C, vacuum dehydration 2 hours, be cooled to 43 DEG C, add a certain proportion of toluene diisocyanate vinegar TDI high-speed stirred under nitrogen protection and be warming up to 78 DEG C after 0. 5 hours, continue reaction 3 hours, analyze after NCO content reaches theoretical value by di-n-butylamine method and stop reaction, be cooled to 45 DEG C, add dibutyl phthalate and mix 0. 5 hours, namely obtain first material;
Second material: quartz powder 15 parts, 15 parts, flyash, asphalt emulsion 2 parts, thin oil 8 parts;
The preparation method of described asphalt emulsion is as follows:
100# pitch 1000 parts,
Emulsifier, two, tributyl phenol APEO (C4H9)--O (EO) nH 8 ~ 100 parts,
Compatilizer XRJ-10 1 part,
Compatilizer ST-2 1 part,
By 100# asphalt heating to 120 DEG C, add emulsifier, two kinds of compatilizers, enter high-speed stirred 5 min and obtain asphalt emulsion;
Mix with 1:2 according to first, second material, flexibility increases with second material and increases, and during construction, with water preheat 40 DEG C before stirring, first material and second material can obtain better bond effect;
(3) 3 hours caulking material initial setting times, consolidation time 25 days, process terminates.
Embodiment 2
Comprise the following steps:
One, cut the damaged concrete in former anchorage zone, remove former concrete material, cast high-performance abrasion-proof erosion concrete 5,
Described high-performance abrasion-proof erosion concrete comprises the raw material of following weight portion:
General purpose portland cement PO42.5 850 parts,
I grade 150 parts, flyash,
Ternary polymerization fiber 5 parts,
Silicon ash, SiO2 content is greater than 90%, specific area at 13000 square metres/kilogram ~ 20000 square metres/kilogram 50 parts,
Medium coarse sand 2500 parts,
2650 parts, stone,
380 parts, water,
Complex material comprises the raw material of following ratio of weight and number:
High-efficiency water-reducing agent of poly-carboxylic acid 105 parts,
Air entraining agent 1.52 parts,
Silicones polyethers emulsion 2.01 parts,
Thick plasticity-maintaining agent falls in low viscosity, viscosity 50 ~ 100cps 2.5 parts,
Naphthalenesulfonate formaldehyde condensation compound 6 parts
Mortar partner 8.5 parts,
(2), flexible filling material between side bar maurer expansion seal
(1) agent of wire brush brush liquid steel iron surface derusting phosphating is adopted between the maurer expansion seal of side bar, rust cleaning phosphatization, 1 time;
The agent of described liquid steel iron surface derusting phosphating is made up of the raw material of following masses parts by volume:
Oxalic acid 6.5 parts,
Phosphoric acid 7 parts,
Hexamethylenetetramine 9.5 parts,
Organobentonite 7 parts,
70 parts, water,
(2) maurer expansion seal surface residual debris is removed, brushing interfacial agents;
Described interfacial agents is made up of the raw material of such as following mass fraction:
Cyanate semi-prepolymer 1000 parts;
Steric hindrance type polyethers and amine terminated polyether diamine chain stretching agent mixture 950 parts;
Brushing is started after stirring;
(3) installation form 1 between the maurer expansion seal of side bar 4, side's paving polyethylene sheeting 2, this polyethylene sheeting injects caulking material 3 on the template, and caulking material injecting height is apart from 1 millimeter, side bar top;
Described caulking material is obtained by the raw material of following masses part and step:
First material: prepared by polyether-type polyisocyanates (NCO) base polyurethane prepolymer for use as:
PPG PPE 600 parts,
Toluene diisocyanate vinegar TDI 850 parts,
Dibutyl phthalate 800 parts,
Ultra-violet absorber A, septichen phenyl ester 4.5 parts,
Ultra-violet absorber B, 2,4-DihydroxyBenzophenone 4.5 parts,
Antioxidant, 2,6-, tri-grades of butyl-4-methylphenols 4.5 parts,
PPG PPE, ultra-violet absorber A, ultra-violet absorber B, antioxidant are mixed by a certain percentage, heat to 140 DEG C, vacuum dehydration 2.5 hours, be cooled to 44 DEG C, add a certain proportion of toluene diisocyanate vinegar TDI high-speed stirred under nitrogen protection and be warming up to 80 DEG C after 0. 5 hours, continue reaction 3 hours, analyze after NCO content reaches theoretical value by di-n-butylamine method and stop reaction, be cooled to 45 DEG C, add dibutyl phthalate and mix 0. 5 hours, namely obtain first material;
If less demanding to adhesion strength, add precipitated calcium carbonate 250; Acetone stirring can be added as adjusted viscosity;
Second material: quartz powder 25 parts, 27.5 parts, flyash, asphalt emulsion 37.5 parts, thin oil 9 parts;
The preparation method of described asphalt emulsion is as follows:
100# pitch 1000 parts,
Emulsifier, two, tributyl phenol APEO (C4H9)--O (EO) nH 54 parts,
Compatilizer XRJ-10 11 parts,
Compatilizer ST-2 11 parts,
By 100# asphalt heating to 125 DEG C, add emulsifier, two kinds of compatilizers, enter high-speed stirred 6.5 min and obtain asphalt emulsion;
Mix with 1:3 according to first, second material, flexibility increases with second material and increases, and during construction, with water preheat 60 DEG C before stirring, first material and second material can obtain better bond effect;
(3) 4 hours caulking material initial setting times, consolidation time 28 days, process terminates.
Embodiment 3
Comprise the following steps:
One, cut the damaged concrete in former anchorage zone, remove former concrete material, cast high-performance abrasion-proof erosion concrete 5,
Described high-performance abrasion-proof erosion concrete comprises the raw material of following weight portion:
General purpose portland cement PO42.5 1000 parts,
I grade 300 parts, flyash,
Ternary polymerization fiber 10 parts,
Silicon ash, SiO2 content is greater than 90%, specific area at 13000 square metres/kilogram ~ 20000 square metres/kilogram 100 parts,
Medium coarse sand 3000 parts,
3300 parts, stone,
460 parts, water,
Complex material comprises the raw material of following ratio of weight and number:
High-efficiency water-reducing agent of poly-carboxylic acid 150 parts,
Air entraining agent 3 parts,
Silicones polyethers emulsion 4 parts,
Thick plasticity-maintaining agent falls in low viscosity, viscosity 50 ~ 100cps 5 parts,
Naphthalenesulfonate formaldehyde condensation compound 12 parts
Mortar partner 15 parts,
(2), flexible filling material between side bar maurer expansion seal
(1) agent of wire brush brush liquid steel iron surface derusting phosphating is adopted between the maurer expansion seal of side bar, rust cleaning phosphatization, 2 times;
The agent of described liquid steel iron surface derusting phosphating is made up of the raw material of following masses parts by volume:
Oxalic acid 10 parts,
Phosphatase 11 0 part,
Hexamethylenetetramine 18 parts,
Organobentonite 12 parts,
55 parts, water,
(2) maurer expansion seal surface residual debris is removed, brushing interfacial agents;
Described interfacial agents is made up of the raw material of such as following mass fraction:
Cyanate semi-prepolymer 1000 parts;
Steric hindrance type polyethers and amine terminated polyether diamine chain stretching agent mixture 1300 parts;
Brushing is started after stirring;
(3) installation form 1 between the maurer expansion seal of side bar 4, side's paving polyethylene sheeting 2, this polyethylene sheeting injects caulking material 3 on the template, and caulking material injecting height is apart from 1 millimeter, side bar top;
Described caulking material is obtained by the raw material of following masses part and step:
First material: prepared by polyether-type polyisocyanates (NCO) base polyurethane prepolymer for use as:
PPG PPE 1000 parts,
Toluene diisocyanate vinegar TDI 1500 parts,
Dibutyl phthalate 1500 parts,
Ultra-violet absorber A, septichen phenyl ester 8 parts,
Ultra-violet absorber B, 2,4-DihydroxyBenzophenone 8 parts,
Antioxidant, 2,6-, tri-grades of butyl-4-methylphenols 8 parts,
PPG PPE, ultra-violet absorber A, ultra-violet absorber B, antioxidant are mixed by a certain percentage, heat to 150 DEG C, vacuum dehydration 3 hours, be cooled to 45 DEG C, add a certain proportion of toluene diisocyanate vinegar TDI high-speed stirred under nitrogen protection and be warming up to 82 DEG C after 0. 5 hours, continue reaction 3 hours, analyze after NCO content reaches theoretical value by di-n-butylamine method and stop reaction, be cooled to 45 DEG C, add dibutyl phthalate and mix 0. 5 hours, namely obtain first material;
If less demanding to adhesion strength, add precipitated calcium carbonate 500 parts in right amount; Acetone stirring can be added as adjusted viscosity;
Second material: quartz powder 35 parts, 40 parts, flyash, asphalt emulsion 50 parts, thin oil 10 parts;
The preparation method of described asphalt emulsion is as follows:
100# pitch 1000 parts,
Emulsifier, two, tributyl phenol APEO (C4H9)--O (EO) nH 100 parts,
Compatilizer XRJ-10 20 parts,
Compatilizer ST-2 20 parts,
By 100# asphalt heating to 130 DEG C, add emulsifier, two kinds of compatilizers, enter high-speed stirred 8 min and obtain asphalt emulsion;
Mix with 1:4 according to first, second material, flexibility increases with second material and increases, and during construction, with water preheat 80 DEG C before stirring, first material and second material can obtain better bond effect;
(3) 5 hours caulking material initial setting times, consolidation time 30 days, process terminates.
Embodiment 4
In the above-described embodiments,
High-performance abrasion-proof erosion concrete of the present invention also comprises:
Defoamer 2 parts,
Waterproof agent 2 parts.
Embodiment 5
In the above-described embodiments,
High-performance abrasion-proof erosion concrete of the present invention also comprises:
Defoamer 11 parts,
Waterproof agent 11 parts.
Embodiment 6
In the above-described embodiments,
High-performance abrasion-proof erosion concrete of the present invention also comprises:
Defoamer 20 parts,
Waterproof agent 20 parts.
Embodiment 7
In the above-described embodiments,
After pouring concrete of the present invention completes, before initial set, remove surface moisture, 30 parts, spray infiltration intercrystalline masterbatch dry powder, forms topping 6.
Embodiment 8
In the above-described embodiments,
After pouring concrete of the present invention completes, before initial set, remove surface moisture, 45 parts, spray infiltration intercrystalline masterbatch dry powder, forms topping 6.
Embodiment 9
In the above-described embodiments,
After pouring concrete of the present invention completes, before initial set, remove surface moisture, 60 parts, spray infiltration intercrystalline masterbatch dry powder, forms topping 6.
Embodiment 10
In the above-described embodiments,
After pouring concrete of the present invention completes, before initial set, remove surface moisture, 100 parts, base of cementing infiltration intercrystalline material dry powder, then rolls light, forms topping 6.
Embodiment 11
In the above-described embodiments,
After pouring concrete of the present invention completes, before initial set, remove surface moisture, 130 parts, base of cementing infiltration intercrystalline material dry powder, then rolls light, forms topping 6.
Embodiment 12
In the above-described embodiments,
After pouring concrete of the present invention completes, before initial set, remove surface moisture, 160 parts, base of cementing infiltration intercrystalline material dry powder, then rolls light, forms topping 6.
Maurer expansion seal has multiple, but anchoring process is all close, is all to adopt concrete anchoring, adopts V-arrangement waterstop antiseep, so adopt the inventive method to the maintenance process of other similar maurer expansion seal also within protection scope of the present invention.
Claims (5)
1. the flexible freeze thawing resistance processing method in Frozen Area bridge on highway shrinkage joint, is characterized in that: comprise the following steps:
(1), cut the damaged concrete in former anchorage zone, remove former concrete material, cast high-performance abrasion-proof erosion concrete, described high-performance abrasion-proof erosion concrete comprises the raw material of following weight portion:
General purpose portland cement PO42.5 700 ~ 1000 parts,
I grade 0 ~ 300 part, flyash,
Ternary polymerization fiber 0 ~ 10 part,
Silicon ash, SiO2 content is greater than 90%, specific area at 13000 square metres/kilogram ~ 20000 square metres/kilogram 0 ~ 100 part,
Medium coarse sand 2000 ~ 3000 parts,
2000 ~ 3300 parts, stone,
300 ~ 460 parts, water,
Complex material comprises the raw material of following ratio of weight and number:
High-efficiency water-reducing agent of poly-carboxylic acid 60 ~ 150 parts,
Air entraining agent 0.03 ~ 3 part,
Silicones polyethers emulsion 0.02 ~ 4 part
Thick plasticity-maintaining agent falls in low viscosity, viscosity 50 ~ 100cps 0 ~ 5 part,
Naphthalenesulfonate formaldehyde condensation compound 0 ~ 12 part
Mortar partner 2 ~ 15 parts,
(2), flexible filling material between side bar maurer expansion seal
(1) agent of wire brush brush liquid steel iron surface derusting phosphating is adopted between the maurer expansion seal of side bar, rust cleaning phosphatization, 1 ~ 2 time;
(2) maurer expansion seal surface residual debris is removed, brushing interfacial agents;
Described interfacial agents is made up of the raw material of such as following mass fraction:
Cyanate semi-prepolymer 1000 parts;
Steric hindrance type polyethers and amine terminated polyether diamine chain stretching agent mixture 600 ~ 1300 parts;
Brushing is started after stirring;
(3) installation form between the maurer expansion seal of side bar, side spreads polyethylene sheeting on the template, and this polyethylene sheeting injects caulking material, and caulking material injecting height is apart from 1 millimeter, side bar top;
Described caulking material is obtained by the raw material of following masses part and step:
First material: prepared by polyether-type polyisocyanates (NCO) base polyurethane prepolymer for use as:
PPG PPE 200 ~ 1000 parts,
Toluene diisocyanate vinegar TDI 200 ~ 1500 parts,
Dibutyl phthalate 100 ~ 1500 parts,
Ultra-violet absorber A, septichen phenyl ester 1 ~ 8 part,
Ultra-violet absorber B, 2,4-DihydroxyBenzophenone 1 ~ 8 part,
Antioxidant, 2,6-, tri-grades of butyl-4-methylphenols 1 ~ 8 part,
PPG PPE, ultra-violet absorber A, ultra-violet absorber B, antioxidant are mixed by a certain percentage, heat to 130 ~ 150 DEG C, vacuum dehydration 2 ~ 3 hours, be cooled to 43 DEG C ~ 45 DEG C, add a certain proportion of toluene diisocyanate vinegar TDI high-speed stirred under nitrogen protection and after 0. 5 hours, be warming up to 78 DEG C ~ 82 DEG C, continue reaction 3 hours, analyze after NCO content reaches theoretical value by di-n-butylamine method and stop reaction, be cooled to 45 DEG C, add dibutyl phthalate and mix 0. 5 hours, namely obtain first material;
If less demanding to adhesion strength, add precipitated calcium carbonate 250 ~ 500 parts in right amount; Acetone stirring can be added as adjusted viscosity;
Second material: quartz powder 15 ~ 35 parts, 15 ~ 40 parts, flyash, asphalt emulsion 25 ~ 50 parts, thin oil 8 ~ 10 parts;
According to first, second material with 1:2 ~ 1:4 mixing, flexibility increases with second material and increases, and during construction, with water preheat 40 ~ 80 DEG C before stirring, first material and second material can obtain better bond effect;
(3) 3 ~ 5 hours caulking material initial setting times, consolidation time 25 ~ 30 days, process terminates.
2. the flexible freeze thawing resistance processing method in bridge on highway shrinkage joint, a kind of Frozen Area according to claim 1, is characterized in that: described high-performance abrasion-proof erosion concrete also comprises:
Defoamer 2 ~ 20 parts,
Waterproof agent 2 ~ 20 parts.
3. the flexible freeze thawing resistance processing method in bridge on highway shrinkage joint, a kind of Frozen Area according to claim 1; it is characterized in that: after in step (), pouring concrete completes, before initial set; remove surface moisture; 30 ~ 60 parts, spray infiltration intercrystalline masterbatch dry powder; or 100 ~ 160 parts, base infiltration intercrystalline material dry powder of cementing; then roll light, form topping.
4. the flexible freeze thawing resistance processing method in bridge on highway shrinkage joint, a kind of Frozen Area according to claim 1, is characterized in that: the agent of described liquid steel iron surface derusting phosphating is made up of the raw material of following masses parts by volume:
Oxalic acid 3 ~ 10 parts,
Phosphatase 24 ~ 10 part,
Hexamethylenetetramine 1 ~ 18 part,
Organobentonite 2 ~ 12 parts,
55 ~ 80 parts, water.
5. the flexible freeze thawing resistance processing method in bridge on highway shrinkage joint, a kind of Frozen Area according to claim 1, is characterized in that: the preparation method of described asphalt emulsion is as follows:
100# pitch 1000 parts,
Emulsifier, two, tributyl phenol APEO (C4H9)--O (EO) nH 8 ~ 100 parts,
Compatilizer XRJ-10 1 ~ 20 part,
Compatilizer ST-2 1 ~ 20 part,
By 100# asphalt heating to 120 ~ 130 DEG C, add emulsifier, two kinds of compatilizers, high-speed stirred 5 ~ 8 min obtains asphalt emulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510245034.1A CN104846737B (en) | 2015-05-14 | 2015-05-14 | A kind of bridge on highway expansion joint, Frozen Area flexibility freeze thawing resistance processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510245034.1A CN104846737B (en) | 2015-05-14 | 2015-05-14 | A kind of bridge on highway expansion joint, Frozen Area flexibility freeze thawing resistance processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104846737A true CN104846737A (en) | 2015-08-19 |
| CN104846737B CN104846737B (en) | 2016-06-29 |
Family
ID=53846696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510245034.1A Active CN104846737B (en) | 2015-05-14 | 2015-05-14 | A kind of bridge on highway expansion joint, Frozen Area flexibility freeze thawing resistance processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104846737B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107216091A (en) * | 2017-06-12 | 2017-09-29 | 河南理工大学 | A kind of novel bridge expansion joint packing material |
| CN108503279A (en) * | 2017-02-28 | 2018-09-07 | 北京城泰混凝土制品有限公司 | Frost-resistant concrete and preparation method thereof |
| CN114134775A (en) * | 2021-11-11 | 2022-03-04 | 武汉工程大学 | Be applied to continuous arrangement of reinforcement combined type road surface and exempt from shaped steel expansion joint structure |
| CN117125931A (en) * | 2023-08-28 | 2023-11-28 | 苏州南方混凝土有限公司 | Low-viscosity high-strength concrete and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985393A (en) * | 2010-08-20 | 2011-03-16 | 华南理工大学 | Steel fiber/polymer fiber dual-fiber reinforced concrete and preparation method thereof |
| CN102627437A (en) * | 2012-05-02 | 2012-08-08 | 河海大学 | Concrete for freeze-thaw resistance in cold area |
| KR20130095093A (en) * | 2012-02-17 | 2013-08-27 | (주)알씨에스 | Bridge expansion joint and repairing method for using the same |
| CN103387353A (en) * | 2013-07-27 | 2013-11-13 | 上海市建筑科学研究院(集团)有限公司 | Elastic concrete used for rapidly repairing expansion joint |
| CN104018424A (en) * | 2014-05-10 | 2014-09-03 | 浙江大学宁波理工学院 | Bridge expansion joint repairing method |
-
2015
- 2015-05-14 CN CN201510245034.1A patent/CN104846737B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985393A (en) * | 2010-08-20 | 2011-03-16 | 华南理工大学 | Steel fiber/polymer fiber dual-fiber reinforced concrete and preparation method thereof |
| KR20130095093A (en) * | 2012-02-17 | 2013-08-27 | (주)알씨에스 | Bridge expansion joint and repairing method for using the same |
| CN102627437A (en) * | 2012-05-02 | 2012-08-08 | 河海大学 | Concrete for freeze-thaw resistance in cold area |
| CN103387353A (en) * | 2013-07-27 | 2013-11-13 | 上海市建筑科学研究院(集团)有限公司 | Elastic concrete used for rapidly repairing expansion joint |
| CN104018424A (en) * | 2014-05-10 | 2014-09-03 | 浙江大学宁波理工学院 | Bridge expansion joint repairing method |
Non-Patent Citations (2)
| Title |
|---|
| 沈维宏等: "新材料AC—K5在高速公路桥梁", 《交通标准化》, vol. 42, no. 12, 30 June 2014 (2014-06-30) * |
| 陈志红: "桥梁伸缩缝病害原因分析及毛勒伸缩缝施工技术", 《湖南交通科技》, vol. 33, no. 2, 30 June 2007 (2007-06-30) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108503279A (en) * | 2017-02-28 | 2018-09-07 | 北京城泰混凝土制品有限公司 | Frost-resistant concrete and preparation method thereof |
| CN108503279B (en) * | 2017-02-28 | 2021-02-23 | 北京城泰混凝土制品有限公司 | Antifreezing concrete and preparation method thereof |
| CN107216091A (en) * | 2017-06-12 | 2017-09-29 | 河南理工大学 | A kind of novel bridge expansion joint packing material |
| CN114134775A (en) * | 2021-11-11 | 2022-03-04 | 武汉工程大学 | Be applied to continuous arrangement of reinforcement combined type road surface and exempt from shaped steel expansion joint structure |
| CN117125931A (en) * | 2023-08-28 | 2023-11-28 | 苏州南方混凝土有限公司 | Low-viscosity high-strength concrete and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104846737B (en) | 2016-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104261790B (en) | Urethane/silicate composite material of hole, a kind of quick rehabilitating concrete road surface groove and preparation method thereof | |
| CN104402339A (en) | Pervious concrete and construction method thereof | |
| CN104846737B (en) | A kind of bridge on highway expansion joint, Frozen Area flexibility freeze thawing resistance processing method | |
| CN109082962A (en) | Environment-friendly construction method for expressway | |
| CN109384439B (en) | High-strength quick-hardening type sprayed concrete and soft rock tunnel surrounding rock sealing and reinforcing method | |
| KR20180027320A (en) | Road pavement constructing method using imperviousness concrete having waterproof and anticorrosive | |
| KR101676296B1 (en) | High early strength concrete composition modified with nano hardend silica and phenylethene-ethyl propenoate polymer synthetic latex, and repairing method for concrete pavement using the same | |
| CN107313320A (en) | The embedded reinforcement asphalt pavement structure of cement concrete pavement and construction method | |
| CN103924495A (en) | Small and medium-sized steel bridge deck pavement system and implementation method | |
| KR102399117B1 (en) | Waterproofing Method of Structure | |
| CN211547135U (en) | Steel fiber concrete water permeable brick for increasing underwater seepage amount of rain | |
| KR101635933B1 (en) | High-speed dry type of repair composition and method for repairing the concrete structures using the same | |
| CN104927759B (en) | A kind of interface adhesive material and black overlay structure and its construction technology of changing in vain based on the material | |
| CN103696366A (en) | Pavement structure and pavement method of combined steel bridge deck | |
| JP5389481B2 (en) | Steel slabs, reinforced concrete slabs and steel railings | |
| RU2433096C2 (en) | Mixture of substances used particularly as additive for concrete mixture | |
| CN107352851A (en) | One kind is without cement antiseepage grouting material compositions | |
| CN210458930U (en) | Waterproof construction of bridge pavement expansion joint position department | |
| CN114960331A (en) | Rigid-flexible composite pavement structure and construction method thereof | |
| CN106436517A (en) | Construction method of soft soil anti-collapse concrete road surface | |
| JP6512908B2 (en) | Construction method of floor slab structure | |
| CN113605169A (en) | Construction method of pouring type semi-flexible composite anti-rutting pavement | |
| Guyer et al. | An Introduction to Special Concretes | |
| CN218147593U (en) | Old semi-rigid base asphalt pavement anti-crack reinforcing pavement structure | |
| KR102404854B1 (en) | The techniques to prevent the movements and sinking of stone plates and ceramic tiles using the difference in viscosity of epoxy resin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |