CN113698160A - Fast-hardening high-performance bridge deck pavement material - Google Patents
Fast-hardening high-performance bridge deck pavement material Download PDFInfo
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- CN113698160A CN113698160A CN202110665127.5A CN202110665127A CN113698160A CN 113698160 A CN113698160 A CN 113698160A CN 202110665127 A CN202110665127 A CN 202110665127A CN 113698160 A CN113698160 A CN 113698160A
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/48—Metal
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Bridges Or Land Bridges (AREA)
- Road Repair (AREA)
Abstract
The invention discloses a quick-hardening high-performance bridge deck pavement material, which relates to the technical field of quick repair of damaged bridge decks and comprises the following raw materials in parts by weight: 28-30 parts of aluminum hydrochloric acid cement, 4-6 parts of gypsum, 0.8-1.1 part of redispersible latex powder, 0.05-0.07 part of a set adjusting agent, 2-3 parts of a strengthening agent, 0.8-1.1 part of a composite additive, 62.3-65 parts of aggregate and 2-2.5 parts of steel fiber, wherein the paving material selects IV-type cement-based grouting material as a basic mixing ratio, and is prepared by mixing aluminate cement, gypsum, redispersible latex powder, the set adjusting agent, the strengthening agent, the composite additive, the aggregate, the steel fiber and other materials, the composite additive comprises a high-efficiency water reducing agent, a defoaming agent and a plastic expanding agent, and the steel fiber selects micro steel fiber and is distributed disorderly. The invention meets the performance requirement of rapid repair paving of bridge deck damage by the action of aluminate cement, gypsum, redispersible latex powder, a thickening time regulator, a strength enhancer, a composite additive, aggregate and steel fiber.
Description
Technical Field
The invention relates to the technical field of rapid repair of bridge deck damage, in particular to a rapid-hardening high-performance bridge deck pavement material.
Background
With the increase of the operational life of the bridge, the upper part of the hollow slab bridge has become serious in recent years, particularly the problem of damage of a hinge joint and a bridge deck, concrete damaged by the bridge deck is chiseled off and is filled again, the conventional material is fast-hardening concrete, in the bridge maintenance process in recent years, the original bridge deck concrete pavement thickness is found to be insufficient (8 cm is originally designed, actually, 5cm is only arranged in many places, and 3cm is also arranged in local places), and the principle of keeping the original bridge deck elevation and not increasing the constant load is generally adopted in maintenance. The weakness of a bridge deck pavement layer is also one of main reasons for causing bridge diseases, secondly, the adhesion between quick-hardening concrete and plate girder concrete is poor, the interface bonding of new and old concrete is poor, the traffic cannot be interrupted completely during construction, the concrete cannot reach the designed strength due to vibration caused by driving of adjacent lanes, the concrete quantity generally required by the repair work of bridge deck damage is small, a material which is good in working performance and can be mixed on site is needed, finally, the repair construction period is very short, generally 22 points in the evening to 5 points in the morning, the traffic is opened quickly, and the strength of the repaired part is improved rapidly.
In order to improve the repair level and increase the bearing capacity of the hollow slab beam, the concrete pavement layer and the slab beam are required to work integrally and bear force together. The newly paved concrete pavement layer and the beam body form a whole by improving the strength of the concrete pavement layer and strengthening the combination of the new concrete and the old concrete, thereby increasing the effective height of the main beam, increasing the transverse connection of the bridge and the integral rigidity of the bridge deck and improving the bearing capacity of the bridge.
Therefore, the properties of bridge deck pavement materials are required to satisfy: (1) rapid hardening, early strength, high strength: the 2-hour compressive strength reaches 20MPa, the 3-hour compressive strength reaches 30MPa, the 5-hour compressive strength reaches 40-50MPa, the requirement of opening the vehicle can be met, the 3-hour flexural strength is greater than 4MPa, the 5-hour flexural strength is not lower than 6MPa, and the slump expansion is greater than 500 mm.
(2) The construction performance is good: the slump expansion degree is good, and the slurry can be automatically poured under the micro-vibration condition during pavement, so that all gaps can be filled.
(3) The volume stability is good: and no shrinkage is ensured after pouring, and the hinge joint space can be completely filled and is in close contact with the plate girder concrete.
(4) The interface performance is good: and the concrete is firmly bonded with the plate girder.
(5) The bonding strength is high: the bond stress of the steel bar is strong.
(6) The low-temperature performance is good: allowing outdoor construction at 0 ℃ in winter.
(7) The dynamic load resistance is good: in the process of curing the material, the material can adapt to vibration under the condition of half-width closed traffic construction.
(8) The durability is good, and therefore, a fast-hardening high-performance hinge joint filling material is provided.
Disclosure of Invention
The invention aims to provide a fast-hardening high-performance bridge deck pavement material to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the fast-hardening high-performance bridge deck pavement material comprises the following raw materials in parts by weight: 28-30 parts of aluminum hydrochloric acid cement, 4-6 parts of gypsum, 0.8-1.1 part of redispersible latex powder, 0.05-0.07 part of set modifier, 2-3 parts of strength enhancer, 0.8-1.1 part of composite additive, 62.3-65 parts of aggregate and 2-2.5 parts of steel fiber.
Preferably, the paving material selects IV-class cement-based grouting materials as a basic mixing proportion, and is prepared by mixing aluminate cement, gypsum, redispersible latex powder, a set control agent, a strength promoter, a composite additive, aggregate, steel fibers and the like.
Preferably, the compound admixture comprises a high-efficiency water reducing agent, a defoaming agent and a plastic expanding agent.
Preferably, the steel fibers are selected from fine steel fibers and distributed disorderly.
Compared with the prior art, the invention has the following beneficial effects:
1. the paving material is prepared by mixing materials such as aluminate cement, gypsum, redispersible latex powder, a setting regulator, a strength promoter, a composite additive, aggregate, steel fiber and the like, so that the paving material has the advantages of early strength, high strength, micro expansion, good fluidity, no corrosivity, impact resistance and vibration resistance, the strength of the paving material is high and far exceeds the strength which can be achieved by cement, the characteristic of shrinkage of the cement during curing is changed, and meanwhile, under the matching of the aluminate cement, the paving material has high activity, the compactness and the fluidity of the material are increased, and the strength of the concrete is increased quickly.
2. The invention improves the toughness and ductility of the material through the action of the steel fiber, and can hinder the expansion of micro cracks and the generation and development of macro cracks in the concrete by adding a certain amount of disorderly distributed micro steel fibers.
3. When the new and old concrete interfaces are treated, the staggered transition areas are formed, so that the new and old concrete forms a whole, the new and old concrete is firmly bonded with the plate girder concrete, and the durability of the new and old concrete is guaranteed.
Drawings
Fig. 1 is a diagram showing a first-aid repair position of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The fast-hardening high-performance bridge deck pavement material comprises the following raw materials in parts by weight: 28-30 parts of aluminum hydrochloric acid cement, 4-6 parts of gypsum, 0.8-1.1 part of redispersible latex powder, 0.05-0.07 part of set modifier, 2-3 parts of strength enhancer, 0.8-1.1 part of composite additive, 62.3-65 parts of aggregate and 2-2.5 parts of steel fiber.
The paving material selects IV-class cement-based grouting material as a basic mixing proportion, and is prepared by mixing aluminate cement, gypsum, redispersible latex powder, a set control agent, a strength enhancer, a composite additive, aggregate, steel fiber and the like.
The composite additive comprises a high-efficiency water reducing agent, a defoaming agent and a plastic expanding agent.
The steel fiber is selected from fine steel fiber and is distributed disorderly.
Basic conditions are as follows:
firstly, the stress of a No. 12 beam with a hole 44 of a south-south overpass K44 in the project S20 is judged to be the stress of a single beam, and two related hinge joints need to be repaired.
Traffic organization (traffic police requirement)
It is planned to be carried out during 4 months, 23 days and night (5 months, 3 days instead if it rains), and the thursday is determined.
23-day night 21: and sealing at 00 o 'clock, and opening traffic at 6 o' clock 24 days earlier.
Third, construction organization progress (simulation)
Before construction, the project organization each party participates in the construction process and strictly deploys the construction process and the cautions. The plan is as follows:
(1) the first-aid repair time is from 21 pm to 6 am;
(2) chiseling the bridge deck, reaming the joint concrete, re-paving the reinforcing steel bar net rib and the like from 21 to 1 in the morning;
(3) 12 o 'clock to 3 o' clock in 24 days, adopt the overlap joint construction, in proper order: plugging the bottom of a hinge joint, cleaning a base plane (washing by high-pressure water and blowing), pouring the hinge joint and pouring the bridge deck pavement;
(4)24 days, 6 o' clock, open traffic.
Fourthly, division of labor for construction
(1) And performing the operations of sealing the road, chiseling the bridge deck, chiseling the hinge joint, paving the reinforcing mesh, pouring in a matched manner, paving the anti-cracking paste and the like.
(2) Plugging the bottom of the hinge joint, cleaning a base plane (washing by high-pressure water and blowing), pouring the hinge joint and pouring the bridge deck pavement.
Fifth, material preparation
Preparing a bridge deck pavement material, and carrying out a strength test before entering a field, wherein the test data is as follows:
sixth, the situation of on-site construction
Because the repair work of the two hinge joints is carried out at this time, the field workload is large, the working surface is small, and the emergency plan must be carefully deployed and made to ensure that each link must be practically implemented. At 9 pm in 4 months and 23 days, construction is started, the excavation area is 22 x 2 ═ 44 square meters, two hinges are formed, the field workload is large, construction units organize enough manpower and materials (including spare machinery and materials), after the efforts of everybody, base cleaning, stirring, hinge pouring and bridge floor are carried out at two points in the morning in 24 days, all pouring and ending work are completed at 4 points in half, and 6-point half-through vehicles are used.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The fast-hardening high-performance bridge deck pavement material is characterized by comprising the following raw materials in parts by weight: 28-30 parts of aluminum hydrochloric acid cement, 4-6 parts of gypsum, 0.8-1.1 part of redispersible latex powder, 0.05-0.07 part of set modifier, 2-3 parts of strength enhancer, 0.8-1.1 part of composite additive, 62.3-65 parts of aggregate and 2-2.5 parts of steel fiber.
2. The quick hardening high performance bridge deck pavement material of claim 1, wherein: the paving material selects IV-class cement-based grouting materials as a basic mixing proportion, and is prepared by mixing aluminate cement, gypsum, redispersible latex powder, a set control agent, a strength promoter, a composite additive, aggregate, steel fibers and the like.
3. The quick hardening high performance bridge deck pavement material of claim 1, wherein: the composite additive comprises a high-efficiency water reducing agent, a defoaming agent and a plastic expanding agent.
4. The quick hardening high performance bridge deck pavement material of claim 1, wherein: the steel fiber is selected from micro steel fiber and distributed disorderly.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110665127.5A CN113698160A (en) | 2021-06-16 | 2021-06-16 | Fast-hardening high-performance bridge deck pavement material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110665127.5A CN113698160A (en) | 2021-06-16 | 2021-06-16 | Fast-hardening high-performance bridge deck pavement material |
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| CN113698160A true CN113698160A (en) | 2021-11-26 |
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| CN202110665127.5A Pending CN113698160A (en) | 2021-06-16 | 2021-06-16 | Fast-hardening high-performance bridge deck pavement material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114436596A (en) * | 2022-02-25 | 2022-05-06 | 中铁大桥局集团有限公司 | Ultra-high performance concrete suitable for use in vibration environment and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253901A (en) * | 2013-06-06 | 2013-08-21 | 上海昱喜新材料科技有限公司 | Concrete bridge-deck rapid paving mortar and preparation method thereof |
| CN104926253A (en) * | 2015-06-03 | 2015-09-23 | 河南汇能路桥科技有限公司 | Pavement/bridge deck concrete fast mending material and application thereof |
| CN106007592A (en) * | 2016-05-23 | 2016-10-12 | 广西横县恒丰建材有限责任公司 | Super early strength type plastic expansion repair mortar and production method thereof |
| CN109437739A (en) * | 2018-11-27 | 2019-03-08 | 黄贺明 | A kind of room temperature maintaining Steel Bridge Deck concrete pavement material and preparation method thereof |
| WO2020206650A1 (en) * | 2019-04-11 | 2020-10-15 | Sika Technology Ag | Cementitious composition with fast development of tensile adhesion strength |
| CN112374851A (en) * | 2020-11-16 | 2021-02-19 | 上海宝冶工程技术有限公司 | Concrete thin layer rapid repairing material |
-
2021
- 2021-06-16 CN CN202110665127.5A patent/CN113698160A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253901A (en) * | 2013-06-06 | 2013-08-21 | 上海昱喜新材料科技有限公司 | Concrete bridge-deck rapid paving mortar and preparation method thereof |
| CN104926253A (en) * | 2015-06-03 | 2015-09-23 | 河南汇能路桥科技有限公司 | Pavement/bridge deck concrete fast mending material and application thereof |
| CN106007592A (en) * | 2016-05-23 | 2016-10-12 | 广西横县恒丰建材有限责任公司 | Super early strength type plastic expansion repair mortar and production method thereof |
| CN109437739A (en) * | 2018-11-27 | 2019-03-08 | 黄贺明 | A kind of room temperature maintaining Steel Bridge Deck concrete pavement material and preparation method thereof |
| WO2020206650A1 (en) * | 2019-04-11 | 2020-10-15 | Sika Technology Ag | Cementitious composition with fast development of tensile adhesion strength |
| CN112374851A (en) * | 2020-11-16 | 2021-02-19 | 上海宝冶工程技术有限公司 | Concrete thin layer rapid repairing material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114436596A (en) * | 2022-02-25 | 2022-05-06 | 中铁大桥局集团有限公司 | Ultra-high performance concrete suitable for use in vibration environment and application thereof |
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