CN106587885A - Patching material for waterproof-layer protective layers of bridge floors of existing railway bridges and application of patching material - Google Patents
Patching material for waterproof-layer protective layers of bridge floors of existing railway bridges and application of patching material Download PDFInfo
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- CN106587885A CN106587885A CN201611140581.4A CN201611140581A CN106587885A CN 106587885 A CN106587885 A CN 106587885A CN 201611140581 A CN201611140581 A CN 201611140581A CN 106587885 A CN106587885 A CN 106587885A
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- existing railway
- protective layer
- waterproof layer
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/16—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing anhydrite, e.g. Keene's cement
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/72—Repairing or restoring existing buildings or building materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/05—Materials having an early high strength, e.g. allowing fast demoulding or formless casting
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
本发明申请提供了一种用于既有铁路桥梁桥面防水层保护层的快速修补材料及其应用，所述的修补材料按照质量份数，由以下组分组成：水泥35～50份，硬石膏3～7份，粉煤灰3～10份，石英砂30～50份，减水剂0.5～1份，胶粉2～4份，纤维素醚0.1～0.5份，锂盐0.5～1份，纤维1～3份，调粘剂0.2～0.5份。本发明提供的用于既有铁路桥梁桥面防水层保护层的快速修补材料具有流动性大、早期强度高、后期强度稳定增长、与基体粘结强度高等特点，其施工工艺简单、方便，原材料来源广泛。The application of the present invention provides a quick repair material for the protective layer of the waterproof layer of the existing railway bridge deck and its application. The repair material is composed of the following components in parts by mass: 35-50 parts of cement, hard 3-7 parts of gypsum, 3-10 parts of fly ash, 30-50 parts of quartz sand, 0.5-1 part of water reducing agent, 2-4 parts of rubber powder, 0.1-0.5 parts of cellulose ether, 0.5-1 part of lithium salt , 1 to 3 parts of fiber, 0.2 to 0.5 parts of viscosity adjusting agent. The rapid repair material used for the protective layer of the waterproof layer of the existing railway bridge deck provided by the invention has the characteristics of high fluidity, high early strength, stable growth of late strength, and high bonding strength with the substrate. The construction process is simple and convenient, and the raw materials Wide variety of sources.
Description
Technical field
The present invention relates to a kind of mobility is big, early strength is high, stable long-term strength increases and bond matrix intensity is high
Existing Railway Bridges bridge surface waterproof layer protective layer patching material.
Background technology
As China's economy is developed rapidly, railway transportation will develop towards direction at a high speed, heavily loaded, and this is railway transportation
Inexorable trend, but while the security of railway transportation also becomes focus of concern.Existing Railway Bridges are used as railway transportation
Important pivot, its security should not be underestimated.Due to undergoing excess load or severe in Existing Railway Bridges under arms process for a long time
Often there is different degrees of crack, broken etc. in the double action of environment, its bridge surface waterproof layer protective layer, and rainwater can pass through these
Crack penetrate into waterproof layer of bridge on, and then aggravate waterproof layer of bridge destruction, cause bridge occur leak, pier corrosion loosen,
Pier is unstable to wait severe safety problem.Therefore, in order to prevent further increasing for Existing Railway Bridges disease, need to be in its waterproof
Being maintained in time when crack, breakage occurs in layer protective layer, and this can not only extend the service life of bridge, can also save iron
The follow-up maintenance and reinforcement expense of road and bridge beam.
The repairing of Existing Railway Bridges bridge surface waterproof layer protective layer need to be on the premise of track circuit normal operation not be affected
Complete, thus windowing the time it is shorter, patching material must possess rapid curing, hour intensity rise it is fast the features such as；In addition bridge
Waterproof layer protective layer be in diversified (crack, pit, pit-hole etc.) disease feature, can the engineering time it is shorter on the premise of, repair
The characteristics of benefit material should have large fluidity concurrently；Existing bridge floor waterproof layer protective layer is chronically at Train induced load and cross force
Synergy under, thus patching material should also possess preferably with the cementability of basic unit, in case occur repair layer entirety hollowing stick up
Rise etc..
For the disease management of Existing Railway Bridges bridge surface waterproof layer protective layer, the mobility of current patching material compared with
It is low, within the limited time, disease position can not be sufficient filling with natural flow regime.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of repairing for Existing Railway Bridges bridge surface waterproof layer protective layer
Material and application, patching material mobility provided in an embodiment of the present invention is higher, in the short period of time, under natural flow regime
Disease position can be sufficient filling with, disease position can be well repaired, higher intensity is reached.
The purpose of the present invention is achieved by the following technical solution：
On the one hand, the embodiment of the invention discloses a kind of quickly repairing for Existing Railway Bridges bridge surface waterproof layer protective layer
Material is mended, it is composed of the following components according to mass fraction：35～50 parts of cement, 3～7 parts of anhydrite, 3～10 parts of flyash, stone
30～50 parts of sand, 0.5～1 part of water reducer, 2～4 parts of rubber powder, 0.1～0.5 part of cellulose ether, 0.5～1 part of lithium salts, fiber 1
～3 parts, 0.2～0.5 part of adjusting adhesive.
Further, the cement is the combination of Portland cement and quick hardening sulphoaluminate cement.
Further, the cement is Portland cement and quick hardening sulphoaluminate cement with 1：6-1：4 weight ratios
Mixture.
Further, the strength grade of the Portland cement is 42.5 or 52.5 grades.
Further, the strength grade of the quick hardening sulphoaluminate cement is 42.5 or 52.5 grades.
Further, the particle size range of the quartz sand is 0.1mm～0.3mm.
Further, the flyash is II grade of modified coal ash.
Further, the water reducer is polycarboxylate water-reducer.
Further, the viscosity of the cellulose ether is 10000～40000.
Further, the fiber is polypropylene fibre that length is 3～5cm.
Further, the adjusting adhesive is at least one in thixotropic lubricant, waterproofing agent.
On the other hand, the embodiment of the present invention additionally provides a kind of for the fast of Existing Railway Bridges bridge surface waterproof layer protective layer
The application of fast patching material, described patching material is the patching material described in claim 1-9 any one, including following step
Suddenly：
Described patching material is mixed in proportion；
Ratio according to ratio of water to material 0.16～0.25 adds water and is uniformly mixed so as to obtain repairing slurry；
By the described disease position that slurry is poured into Existing Railway Bridges bridge surface waterproof layer protective layer of repairing, floating, spray
Water curing 2 hours is to open to traffic；
Described repairing slurry parameter is as follows：30min fluidities >=260mm, 2h compression strength >=30MPa, 28d and basic unit
Adhesive strength >=the 3.0MPa of concrete.
The present invention has the advantage that compared with prior art：
The fast repairing material of Existing Railway Bridges bridge surface waterproof layer protective layer of the present invention is to environment, repairing matrix circle
Without particular/special requirement, repaired position is simply cleared up through surface in face etc..The material is mainly by sulphate aluminium cement, common
The synergy of portland cement, anhydrite ternary system and lithium salts provides the early strength of material, high with early strength, especially
It is that hour intensity rises a fast advantage, which overcomes that organic patching material condensation setting rate is slow, hour low intensity, it is difficult to
The difficult problem completed in Window time；The material is effectively disperseed using water reducer to cement, the characteristics of with good fluidity,
Adjust the workability of material using cellulose ether and adjusting adhesive simultaneously, it is ensured that be sufficient filling with disease under natural flow regime
Position；With it is high with base adhesive intensity the characteristics of, overcome common inorganic patching material with basic unit interfacial adhesion difference
Problem.
Specific embodiment
The present invention is described in further detail with reference to specific embodiment, but it is not as a limitation of the invention.
A kind of fast repairing material for Existing Railway Bridges bridge surface waterproof layer protective layer, according to mass fraction, by with
The following group is grouped into：35～50 parts of cement, 3～7 parts of anhydrite, 3～10 parts of flyash, 30～50 parts of quartz sand, water reducer 0.5～
1 part, 2～4 parts of rubber powder, 0.1～0.5 part of cellulose ether, 0.5～1 part of lithium salts, 1～3 part of fiber, 0.2～0.5 part of adjusting adhesive.
Above scheme can complete the purpose of the present invention, and preferred version is given on this basis：
Preferably, the cement is Portland cement and quick hardening sulphoaluminate cement with 1：6-1：4 weight ratios
Mixture.
To note here is that：Two kinds of cement are mixed with the specific ratio, can not only give full play to respective advantage,
Suppress respective shortcoming, and the two effectively combination can also be better than either party in aspect of performance, especially early strength
Hour amplification is improved.
Preferably, the particle size range of the quartz sand is 0.1mm～0.3mm.
To note here is that：The quartz sand is matched somebody with somebody for the level of different meshes quartz sand.The science of different meshes quartz sand
Level is matched somebody with somebody, and material can be made to have good workability, prevents material from bleeding and laminated segregation phenomenon occur, while material can also had
There is higher intensity.
Preferably, the flyash is II grade of ash.
To note here is that：The flyash is modified II grade flyash.Its method of modifying includes：By flyash,
Sodium acid carbonate and water mix, and ball milling 1-3 hours, then 60 DEG C of drying are obtained.Weight wherein based on flyash is calculated, bicarbonate
The ratio of sodium is 0.5%-1.5%, and the ratio of water is 2%-10%.The modified coal ash processed by the present invention, it is and unmodified
Flyash is compared, and gelling property is greatly improved, and is conducive to the strength character of patching material.
Preferably, the water reducer is polycarboxylate water-reducer.
To note here is that：The polycarboxylate water-reducer is early-strong-fast-hard type.The early-strong-fast-hard type polycarboxylic acids diminishing
Agent is that polyacrylic acid based water reducer is formed with triethanolamine compounding.Wherein, the weight based on polyacrylic acid based water reducer is calculated, and three
The ratio of monoethanolamine is 0.01%-0.06%.Triethanolamine as a kind of early strength agent, in cement hydration process can and Al3+、
Fe3+Complex compound soluble in water is generated, this can promote C3A rate of dissolutions are improved, and are accelerated with gypsum reaction speed.Jing researchs are sent out
Existing, the use of the water reducer can make patching material 1d compression strength improve 15%- relative to the water reducer for being not added with melamine
30%.
Preferably, the viscosity of the cellulose ether is 10000～40000.
Preferably, the fiber is polypropylene fibre that length is 3～5cm.
To note here is that：The fiber is modified polypropylene fiber.Described modified polypropylene fiber is due to carrying out
Surface is modified, and so as to enhance its interface binding power between cement matrix, and then improves the cracking resistance of patching material.
Preferably, the adjusting adhesive is at least one in thixotropic lubricant, waterproofing agent.
Above-mentioned patching material is mixed in proportion；
Ratio according to ratio of water to material 0.16～0.25 adds water and is uniformly mixed so as to obtain repairing slurry；
By the described disease position that slurry is poured into Existing Railway Bridges bridge surface waterproof layer protective layer of repairing, floating, spray
Water curing 2 hours is to open to traffic.
Described repairing slurry parameter is as follows：30min fluidities >=260mm, 2h compression strength >=30MPa, 28d and basic unit
Adhesive strength >=the 3.0MPa of concrete.
Specific embodiment is presented herein below：
Embodiment 1
A kind of proportion of composing (according to the mass fraction) of Existing Railway Bridges bridge surface waterproof layer protective layer fast repairing material：
7 parts of Portland cement, 35 parts of quick hardening sulphoaluminate cement, 4 parts of anhydrite, 8.7 parts of flyash, 40 parts of quartz sand, diminishing
0.5 part of agent, 2 parts of rubber powder, 0.1 part of cellulose ether, 0.4 part of lithium carbonate, 2 parts of fiber, 0.3 part of adjusting adhesive.
The using method of the railroad bridge bridge floor waterproof layer protective layer fast repairing material is as follows：
(1) by proportioning, first by Portland cement, quick hardening sulphoaluminate cement, anhydrite, flyash, quartz sand, subtract
Aqua, rubber powder, cellulose ether, lithium carbonate, fiber, adjusting adhesive are well mixed.
(2) according to the ratio of ratio of water to material 0.19, mixing water is added；It is sufficiently stirred for 5min.
(3) patching material being stirred is poured into into disease position, with trowel trowel it is flat, pat, troweling.
(4) wet curing 2 hours is to open to traffic.
Embodiment 2
A kind of proportion of composing (according to the mass fraction) of Existing Railway Bridges bridge surface waterproof layer protective layer fast repairing material：
8 parts of Portland cement, 39 parts of quick hardening sulphoaluminate cement, 5 parts of anhydrite, 8.7 parts of flyash, 35 parts of quartz sand, diminishing
0.6 part of agent, 2 parts of rubber powder, 0.1 part of cellulose ether, 0.3 part of lithium carbonate, 1 part of fiber, 0.3 part of adjusting adhesive.
The using method of the railroad bridge bridge floor waterproof layer protective layer fast repairing material is as follows：
(1) by proportioning, first by Portland cement, quick hardening sulphoaluminate cement, anhydrite, flyash, quartz sand, subtract
Aqua, rubber powder, cellulose ether, lithium carbonate, fiber, adjusting adhesive are well mixed.
(2) according to the ratio of ratio of water to material 0.20, mixing water is added；It is sufficiently stirred for 5min.
(3) patching material being stirred is poured into into disease position, with trowel trowel it is flat, pat, troweling.
(4) wet curing 2 hours is to open to traffic.
Embodiment 3
A kind of proportion of composing (according to the mass fraction) of Existing Railway Bridges bridge surface waterproof layer protective layer fast repairing material：
8 parts of Portland cement, 40 parts of quick hardening sulphoaluminate cement, 5 parts of anhydrite, 6.5 parts of flyash, 36 parts of quartz sand, diminishing
0.6 part of agent, 2 parts of rubber powder, 0.1 part of cellulose ether, 0.3 part of lithium carbonate, 1 part of fiber, 0.5 part of adjusting adhesive.
The using method of the railroad bridge bridge floor waterproof layer protective layer fast repairing material is as follows：
(1) by proportioning, first by Portland cement, quick hardening sulphoaluminate cement, anhydrite, flyash, quartz sand, subtract
Aqua, rubber powder, cellulose ether, lithium carbonate, fiber, adjusting adhesive are well mixed.
(2) according to the ratio of ratio of water to material 0.21, mixing water is added；It is sufficiently stirred for 5min.
(3) patching material being stirred is poured into into disease position, with trowel trowel it is flat, pat, troweling.
(4) wet curing 2 hours is to open to traffic.
Embodiment 4
A kind of proportion of composing (according to the mass fraction) of Existing Railway Bridges bridge surface waterproof layer protective layer fast repairing material：
6 parts of Portland cement, 36 parts of quick hardening sulphoaluminate cement, 4 parts of anhydrite, 7.7 parts of flyash, 41 parts of quartz sand, diminishing
0.4 part of agent, 2.1 parts of rubber powder, 0.2 part of cellulose ether, 0.3 part of lithium carbonate, 2 parts of fiber, 0.3 part of adjusting adhesive.
The using method of the railroad bridge bridge floor waterproof layer protective layer fast repairing material is as follows：
(1) by proportioning, first by Portland cement, quick hardening sulphoaluminate cement, anhydrite, flyash, quartz sand, subtract
Aqua, rubber powder, cellulose ether, lithium carbonate, fiber, adjusting adhesive are well mixed.
(2) according to the ratio of ratio of water to material 0.18, mixing water is added；It is sufficiently stirred for 5min.
(3) patching material being stirred is poured into into disease position, with trowel trowel it is flat, pat, troweling.
(4) wet curing 2 hours is to open to traffic.
Embodiment 5
A kind of proportion of composing (according to the mass fraction) of Existing Railway Bridges bridge surface waterproof layer protective layer fast repairing material：
6 parts of Portland cement, 38 parts of quick hardening sulphoaluminate cement, 5.5 parts of anhydrite, 7.6 parts of flyash, 36 parts of quartz sand subtracts
0.5 part of aqua, 2.5 parts of rubber powder, 0.15 part of cellulose ether, 0.35 part of lithium carbonate, 3 parts of fiber, 0.4 part of adjusting adhesive.
The using method of the railroad bridge bridge floor waterproof layer protective layer fast repairing material is as follows：
(1) by proportioning, first by Portland cement, quick hardening sulphoaluminate cement, anhydrite, flyash, quartz sand, subtract
Aqua, rubber powder, cellulose ether, lithium carbonate, fiber, adjusting adhesive are well mixed.
(2) according to the ratio of ratio of water to material 0.21, mixing water is added；It is sufficiently stirred for 5min.
(3) patching material being stirred is poured into into disease position, with trowel trowel it is flat, pat, troweling.
(4) wet curing 2 hours is to open to traffic.
Embodiment 6
A kind of proportion of composing (according to the mass fraction) of Existing Railway Bridges bridge surface waterproof layer protective layer fast repairing material：
8 parts of Portland cement, 40 parts of quick hardening sulphoaluminate cement, 5 parts of anhydrite, 9.5 parts of flyash, 32 parts of quartz sand, diminishing
0.6 part of agent, 2 parts of rubber powder, 0.2 part of cellulose ether, 0.2 part of lithium carbonate, 2 parts of fiber, 0.5 part of adjusting adhesive.
The using method of the railroad bridge bridge floor waterproof layer protective layer fast repairing material is as follows：
(1) by proportioning, first by Portland cement, quick hardening sulphoaluminate cement, anhydrite, flyash, quartz sand, subtract
Aqua, rubber powder, cellulose ether, lithium carbonate, fiber, adjusting adhesive are well mixed.
(2) according to the ratio of ratio of water to material 0.22, mixing water is added；It is sufficiently stirred for 5min.
(3) patching material being stirred is poured into into disease position, with trowel trowel it is flat, pat, troweling.
(4) wet curing 2 hours is to open to traffic.
The unit of weight portion meter mass ratio is kg in above-described embodiment 1～6.
Table 1 is the performance parameter of patching material prepared by embodiment of the present invention 1-6, and design parameter is shown in Table 1.
Table 1
Can be seen that by above example, by allocating cement, gypsum, flyash, the ratio of quartz sand and consumption, then lead to
Water reducer, rubber powder, cellulose ether, lithium carbonate, fiber and the adjusting adhesive of addition different proportion are crossed, 30min fluidities can be obtained
The fast repairing material of the adhesive strength >=3.0MPa of >=260mm, 2h compression strength >=30MPa, 28d and substrate concrete.Cause
This, the patching material employed in the present invention can preferably suitable for the disease of Existing Railway Bridges bridge surface waterproof layer protective layer
Administer.
Above example is only the exemplary embodiment of the present invention, is not used in the restriction present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can make respectively in the essence and protection domain of the present invention to the present invention
Modification or equivalent are planted, this modification or equivalent also should be regarded as being within the scope of the present invention.
Claims (10)
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| CN201611140581.4A CN106587885B (en) | 2016-12-12 | 2016-12-12 | Patching material and application for Existing Railway Bridges bridge surface waterproof layer protective layer |
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| CN108101474A (en) * | 2018-01-15 | 2018-06-01 | 北京首发公路养护工程有限公司 | Anti- isolation road rapid repair material of low temperature contracting Self-leveling and preparation method thereof |
| CN110451897A (en) * | 2019-08-01 | 2019-11-15 | 江苏建鸿环保材料科技有限公司 | A kind of grouting material, application and its construction method |
| CN111320450A (en) * | 2020-04-02 | 2020-06-23 | 北京眷诚铁道工程技术有限公司 | Self-compacting material for repairing railway concrete sleeper and preparation method and application thereof |
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| CN113548858A (en) * | 2021-08-18 | 2021-10-26 | 上海市建筑科学研究院有限公司 | Repair material with simple construction and good flexibility and preparation method thereof |
| CN115490487A (en) * | 2022-09-01 | 2022-12-20 | 中德新亚建筑材料有限公司 | Upward rapid repairing agent for uninterrupted traffic of bridges and tunnels |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108101474A (en) * | 2018-01-15 | 2018-06-01 | 北京首发公路养护工程有限公司 | Anti- isolation road rapid repair material of low temperature contracting Self-leveling and preparation method thereof |
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| CN113548858A (en) * | 2021-08-18 | 2021-10-26 | 上海市建筑科学研究院有限公司 | Repair material with simple construction and good flexibility and preparation method thereof |
| CN115490487A (en) * | 2022-09-01 | 2022-12-20 | 中德新亚建筑材料有限公司 | Upward rapid repairing agent for uninterrupted traffic of bridges and tunnels |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106587885B (en) | 2018-12-18 |
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Address after: 100024 No. 1, East Lane, Chaoyang District, Beijing, Guanzhuang Patentee after: CHINA BUILDING MATERIALS ACADMEY Address before: 100024 No. 1, East Lane, Chaoyang District, Beijing, Guanzhuang Patentee before: CHINA BUILDING MATERIALS ACADEMY |
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Effective date of registration: 20211208 Address after: 100024 No. 1, East Lane, Chaoyang District, Beijing, Guanzhuang Patentee after: Zhongyanyi Technology Co.,Ltd. Address before: 100024 No. 1, East Lane, Chaoyang District, Beijing, Guanzhuang Patentee before: CHINA BUILDING MATERIALS ACADMEY |