CN105523745B - A kind of bridge expanssion joint fast repairing material - Google Patents

A kind of bridge expanssion joint fast repairing material Download PDF

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Publication number
CN105523745B
CN105523745B CN201610010582.0A CN201610010582A CN105523745B CN 105523745 B CN105523745 B CN 105523745B CN 201610010582 A CN201610010582 A CN 201610010582A CN 105523745 B CN105523745 B CN 105523745B
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CN
China
Prior art keywords
parts
component
bridge expanssion
expanssion joint
fast repairing
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CN201610010582.0A
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Chinese (zh)
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CN105523745A (en
Inventor
魏定邦
丁民
曹青霞
李晓民
钱普舟
张国宏
Original Assignee
甘肃省交通规划勘察设计院有限责任公司
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Priority to CN201610010582.0A priority Critical patent/CN105523745B/en
Publication of CN105523745A publication Critical patent/CN105523745A/en
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14Compositions 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
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/72Repairing or restoring existing buildings or building materials
    • C04B2111/723Repairing reinforced concrete

Abstract

The present invention relates to a kind of bridge expanssion joint fast repairing material, it is made up of two kinds of components of A and B;Wherein A is made up of following weight parts component:25 ~ 30 parts of quick hardening sulphoaluminate cement, 5 ~ 10 parts of Portland cement, 1 ~ 3 part of anhydrite, 1 ~ 3 part of silicon ash, 55 ~ 65 parts of quartz sand, 0.5 ~ 1 part of water reducer, 0.5 ~ 1 part of boric acid, 1 ~ 3 part of fiber;B is made up of following weight parts component:35 ~ 45 parts of carboxylic styrene butadiene latex, 0.5 ~ 1 part of lithium salts, 0.5 ~ 1 part of lithium salts defoamer, 55 ~ 65 parts of water.The features such as present invention has early strength height, stable long-term strength growth, low modulus of elasticity, high adhesion strength and cracking resistance, and practice of construction is easy to use.

Description

A kind of bridge expanssion joint fast repairing material
Technical field
The present invention relates to a kind of super hardening flexible concrete material, more particularly to a kind of bridge expanssion joint Rapid-Repair material Material.
Background technology
Bridge expanssion joint both sides concrete is also easy to produce stress concentration and damaged when being hit.Expansion joint both sides concrete Bonding failure is the principal mode of expansion joint destruction between destruction and concrete and steel plate, old concrete, thus can cause and stretch The further destructions such as contracting seam steel plate is exposed, reinforcing bar fracture, ultimately result in road surface and being connected for bridge floor are not smooth, produce early stage broken It is bad, influence traffic circulation.
By the special role that expansion joint is born, its service life is relatively low, and what is had even damages being open to traffic then It is bad, and limited by position and Service Environment, the repairing at expansion joint is always more scabrous problem.The repairing at expansion joint is present Following two problems:
(1) maintenance of expansion joint belongs to maintenance project, it is necessary to which close traffic, causes the reduction of road rate, for highway For, the loss thus brought is even more serious.Conventional cement concrete material is longer, it is necessary to the blocked road time curing cycle It is long.
(2) expansion joint belongs to road, bridge junction, it is necessary to have good bonding with steel plate and old concrete, secondly, it is necessary to hold By loaded deformation, thus the requirement to expanded joint material is flexible adhesion patching material, and current conventional repair material is water , there is imperfect bonding and the fracture that is easily hit in cement concrete material.
Steel fiber reinforced concrete and fast hardening concrete are the major ways of current expansion joint repairing, but are due to that its modulus is inclined Height, causes secondary badly broken, while steel fiber reinforced concrete curing time is more than 7 days, it is larger to traffic impact.Polymer is fast Dry concrete can overcome two above shortcoming simultaneously, and high with adhesion strength, the features such as speed that is open to traffic is fast is following expansion joint The main development direction of patching material.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of good bridge expanssion joint Rapid-Repair material of workability Material.
To solve the above problems, a kind of bridge expanssion joint fast repairing material of the present invention, it is characterised in that:It by Two kinds of component compositions of A and B;Wherein
A is made up of following weight parts component:25 ~ 30 parts of quick hardening sulphoaluminate cement, 5 ~ 10 parts of Portland cement, firmly 1 ~ 3 part of gypsum, 1 ~ 3 part of silicon ash, 55 ~ 65 parts of quartz sand, 0.5 ~ 1 part of water reducer, 0.5 ~ 1 part of boric acid, 1 ~ 3 part of fiber;
B is made up of following weight parts component:35 ~ 45 parts of carboxylic styrene butadiene latex, 0.5 ~ 1 part of lithium salts, lithium salts defoamer 0.5 ~ 1 Part, 55 ~ 65 parts of water.
The strength grade of the quick hardening sulphoaluminate cement is 42.5 or 52.5 grades.
The strength grade of the Portland cement is 52.5 grades.
The specific surface area of the silicon ash is 20000m2/kg。
The water reducer is high performance water reducing agent of polyocarboxy acid.
The fiber refer to a diameter of 6mm polypropylene fibre and a diameter of 12mm polypropylene fibre by 1:1 quality Than mixing composition.
A kind of application method of bridge expanssion joint fast repairing material as described above, comprises the following steps:
(1) weighed by proportioning;
(2) by quick hardening sulphoaluminate cement, Portland cement, anhydrite, silicon ash, quartz sand, water reducer, boric acid, fibre After dimension is well mixed, component A is obtained;
(3) lithium salts is prepared into after 10% aqueous solution, adds carboxylic styrene butadiene latex, lithium salts defoamer and be well mixed, obtain To B component;
(4) the component A and the B component are pressed 1:After 1 mass ratio is well mixed, the quality such as addition and the component A Particle diameter be 5 ~ 20mm rubble, be poured into after fully mixing and stirring in 20 minutes it is floating in the expansion joint of breakage, finally, watering Health 2 hours is to open to traffic.
The present invention has advantages below compared with prior art:
1st, the present invention main morning that material is provided by sulphate aluminium cement, Portland cement and gypsum ternary system Phase intensity, and deformability is provided by carboxylic styrene butadiene latex, provide anti-cracking ability by doping fiber.Using poly-carboxylic high-performance Water reducer effectively can be disperseed to cement, and cause patching material to have optimal apply with good space steric effect Work performance.(Referring to table 1).
Table 1:Bridge expanssion joint patching material performance indications
As it can be seen from table 1 bridge expanssion joint patching material of the present invention has initial slump high, 0.5 hour slump Loss is small, the features such as early strength height, stable long-term strength growth, low modulus of elasticity, high adhesion strength and cracking resistance.
2nd, constructed present invention employs two kinds of components of A, B, practice of construction is easy to use.
Embodiment
A kind of bridge expanssion joint fast repairing material of embodiment 1, it is made up of two kinds of components of A and B;Wherein
A is made up of following weight parts component:25 parts of quick hardening sulphoaluminate cement, 5 parts of Portland cement, anhydrite 3 Part, 3 parts of silicon ash, 60 parts of quartz sand, 0.5 part of water reducer, 0.5 part of boric acid, 3 parts of fiber;
B is made up of following weight parts component:35 parts of carboxylic styrene butadiene latex, 0.5 part of lithium salts, 0.5 part of lithium salts defoamer, water 65 Part.
Wherein:The strength grade of quick hardening sulphoaluminate cement is 42.5 or 52.5 grades.Intensity of Portland cement etc. Level is 52.5 grades.The specific surface area of silicon ash is 20000m2/kg.Water reducer is high performance water reducing agent of polyocarboxy acid.Fiber refers to diameter The polypropylene fibre of polypropylene fibre and a diameter of 12mm for 6mm presses 1:1 mass ratio mixes composition.
The application method of the bridge expanssion joint fast repairing material, comprises the following steps:
(1) weighed by proportioning;
(2) by quick hardening sulphoaluminate cement, Portland cement, anhydrite, silicon ash, quartz sand, water reducer, boric acid, fibre After dimension is well mixed, component A is obtained;
(3) lithium salts is prepared into after 10% aqueous solution, adds carboxylic styrene butadiene latex, lithium salts defoamer and be well mixed, obtain To B component;
(4) component A and B component are pressed 1:After 1 mass ratio is well mixed, the particle diameter added with the quality such as the component A is 5 ~ 20mm rubble, was poured into 20 minutes floating in the expansion joint of breakage after fully mixing and stirring, and finally, watering health 2 is small Up to open to traffic.
A kind of bridge expanssion joint fast repairing material of embodiment 2, it is made up of two kinds of components of A and B;Wherein
A is made up of following weight parts component:25 parts of quick hardening sulphoaluminate cement, 5 parts of Portland cement, anhydrite 3 Part, 1.5 parts of silicon ash, 60 parts of quartz sand, 0.5 part of water reducer, 1 part of boric acid, 2 parts of fiber;
B is made up of following weight parts component:45 parts of carboxylic styrene butadiene latex, 0.5 part of lithium salts, 0.5 part of lithium salts defoamer, water 59 Part.
Wherein:Quick hardening sulphoaluminate cement, Portland cement, silicon ash, water reducer, fiber be the same as Example 1.
The application method be the same as Example 1 of the bridge expanssion joint fast repairing material.
A kind of bridge expanssion joint fast repairing material of embodiment 3, it is made up of two kinds of components of A and B;Wherein
A is made up of following weight parts component:28 parts of quick hardening sulphoaluminate cement, 10 parts of Portland cement, anhydrite 1 Part, 1 part of silicon ash, 55 parts of quartz sand, 1 part of water reducer, 1 part of boric acid, 3 parts of fiber;
B is made up of following weight parts component:40 parts of carboxylic styrene butadiene latex, 0.75 part of lithium salts, 0.75 part of lithium salts defoamer, water 58.5 parts.
Wherein:Quick hardening sulphoaluminate cement, Portland cement, silicon ash, water reducer, fiber be the same as Example 1.
The application method be the same as Example 1 of the bridge expanssion joint fast repairing material.
A kind of bridge expanssion joint fast repairing material of embodiment 4, it is made up of two kinds of components of A and B;Wherein
A is made up of following weight parts component:25 parts of quick hardening sulphoaluminate cement, 8 parts of Portland cement, anhydrite 2 Part, 2 parts of silicon ash, 59 parts of quartz sand, 1 part of water reducer, 1 part of boric acid, 2 parts of fiber;
B is made up of following weight parts component:40 parts of carboxylic styrene butadiene latex, 1 part of lithium salts, 1 part of lithium salts defoamer, 58 parts of water.
Wherein:Quick hardening sulphoaluminate cement, Portland cement, silicon ash, water reducer, fiber be the same as Example 1.
The application method be the same as Example 1 of the bridge expanssion joint fast repairing material.
A kind of bridge expanssion joint fast repairing material of embodiment 5, it is made up of two kinds of components of A and B;Wherein
A is made up of following weight parts component:25 parts of quick hardening sulphoaluminate cement, 10 parts of Portland cement, anhydrite 3 Part, 3 parts of silicon ash, 55 parts of quartz sand, 1 part of water reducer, 1 part of boric acid, 1 part of fiber;
B is made up of following weight parts component:35 parts of carboxylic styrene butadiene latex, 0.5 part of lithium salts, 0.5 part of lithium salts defoamer, water 64 Part.
Wherein:Quick hardening sulphoaluminate cement, Portland cement, silicon ash, water reducer, fiber be the same as Example 1.
The application method be the same as Example 1 of the bridge expanssion joint fast repairing material.
A kind of bridge expanssion joint fast repairing material of embodiment 6, it is made up of two kinds of components of A and B;Wherein
A is made up of following weight parts component:25 parts of quick hardening sulphoaluminate cement, 10 parts of Portland cement, anhydrite 3 Part, 3 parts of silicon ash, 55 parts of quartz sand, 1 part of water reducer, 1 part of boric acid, 1 part of fiber;
B is made up of following weight parts component:45 parts of carboxylic styrene butadiene latex, 1 part of lithium salts, 1 part of lithium salts defoamer, 55 parts of water.
Wherein:Quick hardening sulphoaluminate cement, Portland cement, silicon ash, water reducer, fiber be the same as Example 1.
The application method be the same as Example 1 of the bridge expanssion joint fast repairing material.
A kind of bridge expanssion joint fast repairing material of embodiment 7, it is made up of two kinds of components of A and B;Wherein
A is made up of following weight parts component:30 parts of quick hardening sulphoaluminate cement, 10 parts of Portland cement, anhydrite 3 Part, 3 parts of silicon ash, 65 parts of quartz sand, 0.8 part of water reducer, 0.8 part of boric acid, 2 parts of fiber;
B is made up of following weight parts component:45 parts of carboxylic styrene butadiene latex, 1 part of lithium salts, 1 part of lithium salts defoamer, 55 parts of water.
Wherein:Quick hardening sulphoaluminate cement, Portland cement, silicon ash, water reducer, fiber be the same as Example 1.
The application method be the same as Example 1 of the bridge expanssion joint fast repairing material.
The unit of parts by weight meter mass ratio is kg in above-described embodiment 1 ~ 7.

Claims (7)

1. a kind of bridge expanssion joint fast repairing material, it is characterised in that:It is made up of two kinds of components of A and B;Wherein
A is made up of following weight parts component:25 ~ 30 parts of quick hardening sulphoaluminate cement, 5 ~ 10 parts of Portland cement, anhydrite 1 ~ 3 part, 1 ~ 3 part of silicon ash, 55 ~ 65 parts of quartz sand, 0.5 ~ 1 part of water reducer, 0.5 ~ 1 part of boric acid, 1 ~ 3 part of fiber;
B is made up of following weight parts component:35 ~ 45 parts of carboxylic styrene butadiene latex, 0.5 ~ 1 part of lithium salts, 0.5 ~ 1 part of lithium salts defoamer, 55 ~ 65 parts of water.
2. a kind of bridge expanssion joint fast repairing material as claimed in claim 1, it is characterised in that:The quick hardening sulphoaluminate The strength grade of cement is 42.5 or 52.5 grades.
3. a kind of bridge expanssion joint fast repairing material as claimed in claim 1, it is characterised in that:The normal silicate water The strength grade of mud is 52.5 grades.
4. a kind of bridge expanssion joint fast repairing material as claimed in claim 1, it is characterised in that:The ratio surface of the silicon ash Product is 20000m2/kg。
5. a kind of bridge expanssion joint fast repairing material as claimed in claim 1, it is characterised in that:The water reducer is poly- carboxylic Sour high-performance water reducing agent.
6. a kind of bridge expanssion joint fast repairing material as claimed in claim 1, it is characterised in that:The fiber refers to diameter The polypropylene fibre of polypropylene fibre and a diameter of 12mm for 6mm presses 1:1 mass ratio mixes composition.
7. a kind of application method of bridge expanssion joint fast repairing material as claimed in claim 1, comprises the following steps:
(1) weighed by proportioning;
(2) quick hardening sulphoaluminate cement, Portland cement, anhydrite, silicon ash, quartz sand, water reducer, boric acid, fiber are mixed After closing uniformly, component A is obtained;
(3) lithium salts is prepared into after 10% aqueous solution, adds carboxylic styrene butadiene latex, lithium salts defoamer and be well mixed, obtain B groups Point;
(4) the component A and the B component are pressed 1:After 1 mass ratio is well mixed, the grain of the quality such as addition and the component A Footpath is 5 ~ 20mm rubble, be poured into after fully mixing and stirring in 20 minutes it is floating in the expansion joint of breakage, finally, health of sprinkling water 2 hours to open to traffic.
CN201610010582.0A 2016-01-08 2016-01-08 A kind of bridge expanssion joint fast repairing material CN105523745B (en)

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CN106542791A (en) * 2016-10-31 2017-03-29 甘肃畅陇公路养护技术研究院有限公司 Emulsion-type double-component interfacial agents
CN106747133B (en) * 2016-11-28 2019-02-01 郑州筑邦建材有限公司 A kind of severe cold area high-speed rail pedestal concrete low temperature patching material and its application
CN106587885B (en) * 2016-12-12 2018-12-18 中国建筑材料科学研究总院 Patching material and application for Existing Railway Bridges bridge surface waterproof layer protective layer
CN107216091A (en) * 2017-06-12 2017-09-29 河南理工大学 A kind of novel bridge expansion joint packing material
CN107555919B (en) * 2017-08-23 2020-05-12 合肥卡勒斯通建筑材料有限公司 Bridge grouting material and method for rapidly repairing bridge expansion joint by adopting same
CN110386779A (en) * 2018-04-23 2019-10-29 东宏建设股份有限公司 A kind of bridge expanssion joint concrete
CN108892459A (en) * 2018-09-12 2018-11-27 东南大学 A kind of titanate-containing sulpho-aluminate cement base fast repairing material and preparation method thereof
CN109678437A (en) * 2019-01-28 2019-04-26 甘肃省交通规划勘察设计院股份有限公司 A kind of bi-component low viscosity type basic crack fast repairing material

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