CN101759427A - Inorganic concrete repair material of high resistance to erosion and abrasion - Google Patents

Inorganic concrete repair material of high resistance to erosion and abrasion Download PDF

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Publication number
CN101759427A
CN101759427A CN200910273163A CN200910273163A CN101759427A CN 101759427 A CN101759427 A CN 101759427A CN 200910273163 A CN200910273163 A CN 200910273163A CN 200910273163 A CN200910273163 A CN 200910273163A CN 101759427 A CN101759427 A CN 101759427A
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China
Prior art keywords
erosion
concrete
abrasion
repair
ingredients
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CN200910273163A
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CN101759427B (en
Inventor
程润喜
谭恺炎
陈军琪
刘世军
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Gezhouba Group Testing and Inspection Co Ltd
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Gezhouba Group Testing and Inspection Co Ltd
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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
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0041—Non-polymeric ingredients chosen for their physico-chemical characteristics
    • C04B2103/0044—Compounds chosen for their abrasion resistance, e.g. determined according to the L.A. test
    • 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
    • C04B2111/00017—Aspects relating to the protection of the environment
    • 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
    • C04B2111/00439—Physico-chemical properties of the materials not provided for elsewhere in C04B2111/00
    • C04B2111/00456—Odorless cements
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/2038—Resistance against physical degradation
    • 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
    • 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
    • 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

Abstract

An inorganic concrete repair material of high resistance to erosion and abrasion is mainly prepared by mixing the raw materials of silicate minerals, a volcano dust mixture, silicon oxide particles,sulphoaluminate minerals, high molecular weight polymers of fatty alcohol polyoxyethylene ether, cellulose ether, polypropylene fibers, silicon oxide solid particles, etc. As the material contains ingredients for reducing moisture losses and evaporation, ingredients for preventing and reducing shrinkage, ingredients for resisting cracks and ingredients for improving bonding strength and erosion and abrasion resistance strength, the use of the material has the advantages of adjustable operation time, good bonding properties, low shrinkage, high crack resistance, approximate elastic modulus and coefficient of linear expansion with concrete, little possibility of falling off a base material, high bonding strength and high erosion and abrasion resistance strength. Epoxy repair materials can be replaced by the material in the concrete flaw repair, particularly in the repair of concrete parts destroyed by water for the purpose of resisting current erosion. The material is nontoxic, tasteless, and convenient for construction in practical application.

Description

Inorganic concrete repair material of high resistance to erosion and abrasion
Technical field
The present invention relates to a kind of concrete repair material, particularly a kind ofly be suitable for the inorganic concrete repair material of high resistance to erosion and abrasion that repair at the high position of life requirement such as current scour face.
Background technology
Surperficial filletings when the washing away of the honeycomb that occurs in the concrete construction, pitted skin, bubble, doghole and concrete for hydraulic structure flow-passing surface, cavitation erosion face and distress in concrete grouting etc. often adopt preshrunk mortar or polymer mortar (as epoxy mortar) to repair.Maintenance completely can not be accomplished in the fragmentary repairing position that distributes, and adds preshrunk mortar bonding intensity and anti-impact mill intensity low, epoxy mortar coefficient of linear expansion and natural characteristicss such as concrete differs greatly, and causes the quality of repairing the position as one wishes.
Summary of the invention
The objective of the invention is for concrete repairing work provides a kind of cheap, easy construction, the operating time is adjustable, adhesivity good, low contraction, high cracking resistance and Young's modulus and coefficient of linear expansion and concrete are approaching, can not throw off from base material, cohesive strength height, anti-impact mill intensity height, repair in the damaged or destroyed by flood position concrete repair especially resist current scour at concrete defect and can replace the epoxies patching material, the novel patching material of nonpoisonous and tasteless in actual applications, easy construction.
The object of the present invention is achieved like this: a kind of inorganic concrete repair material of high resistance to erosion and abrasion, patching material is mixed by following material in weight part: silicates mineral 55-70 part, volcano grey matter compound 12-18 part, silicon-dioxide powder 3-12 part, sulphoaluminate phase 6-14 part, fatty alcohol polyethenoxy ether class high molecular weight polymers 0.2-0.8 part, ether of cellulose 0.02-0.08 part, polypropylene fibre 0.03-0.1 part, silica solid particle 100-140 part.
Described volcano grey matter compound is to be the volcano grey matter compound of the employing flyash standard of main component with silicon oxide and aluminum oxide.
Inorganic concrete repair material of high resistance to erosion and abrasion provided by the invention, the component sulplo-aluminate of the plain ether of component fiber of " reduce moisture content runs off, volatilization ", " prevention also reduce shrink " and be the fatty alcohol polyethenoxy ether class high molecular weight polymers owing to contain in this material, the plain ether of " cracking resistance is split in resistance " component fiber, poly-third vinyl fiber, the component silicon-dioxide powder that " improves cohesive strength and anti-impact mill intensity ", the comprehensive action of multiple factor makes and repairs the superior in quality of part.
One, mix performance,
Patching material mix performance test achievement sees Table 1.
Table 1
Figure G2009102731636D00021
Two, resistance to cleavage
Patching material resistance to cleavage test result sees Table 2.
Table 2
Figure G2009102731636D00022
Annotate: according to the JC/T951-2005 test, ratio of water to material is 0.13.
Three, material mechanical performance
Strength trial the results are shown in Table 3.
Table 3
The length of time ??3d ??7d ??28d
Folding strength (MPa) ??8.0 ??9.3 ??15.1
Ultimate compression strength (MPa) ??48.6 ??58.3 ??79.7
Annotate: ratio of water to material is 0.13.
Four, anti-impact mill test
Patching material anti-impact mill test-results sees Table 4.
Table 4
Annotate: ratio of water to material is 0.13; Anti-impact mill test basis is " epoxy resin mortar technical regulation " DL/T 5193-2004; Use rotary water conservancy project concrete water sand abrasion machine, towards mill speed 40m/s.
Five, bonding strength test
Old concrete is C45 one grating (rubble) concrete, and test result sees Table 3.
Six, adhesion of new and old concrete strength trial achievement see Table 7, table 8.
Table 7 bonding axial tensile strength test-results
The length of time Test specimen 1 Test specimen 2 Test specimen 3 On average
Mark is supported 14d (3.10 patching material is disconnected) (3.67 patching material is disconnected) (2.84 open the bonding part) ??3.20
Mark is supported 30d (3.84 old concrete is disconnected) (3.69 patching material is disconnected) (4.10 old concrete is disconnected) ??3.88
Annotate: test specimen section 100mm*100mm, the sawed-off back of the freeze proof test specimen of old concrete (100mm*100mm*200mm) is placed on a side (the sawed-off novel concrete direction that faces) in the freeze proof die trial, and second half pours into a mould patching material (ratio of water to material is 0.13).When the length of time, glue the chuck of axis pulling experiment.
Table 8 bonding flexural tensile strength test-results
The length of time Test specimen 1 Test specimen 2 Test specimen 3 On average
Mark is supported 14d (6.04 open the bonding part) (6.30 open the bonding part) (5.44 open the bonding part) ??5.93
Mark is supported 29d (6.10 open the bonding part) (6.36 old concrete is disconnected) (7.10 open the bonding part) ??6.52
Annotate: test specimen section 100mm*100mm, the curved sawed-off back of test specimen (100mm*100mm*200mm) of drawing of old concrete is placed on the curved side (the sawed-off novel concrete direction that faces) in the die trial of drawing, and second half pours into a mould patching material (ratio of water to material is 0.13).
Embodiment
Embodiment:
Composition of raw materials 1: silicates mineral 55Kg, volcano grey matter compound 12Kg, silicon-dioxide powder 3Kg, sulphoaluminate phase 6Kg, fatty alcohol polyethenoxy ether class high molecular weight polymers 0.2Kg, ether of cellulose 0.02Kg, polypropylene fibre 0.03Kg, silica solid particle 100Kg.
Composition of raw materials 2: silicates mineral 70Kg, volcano grey matter compound 18Kg, silicon-dioxide powder 12Kg, sulphoaluminate phase 16Kg, fatty alcohol polyethenoxy ether class high molecular weight polymers 0.8Kg, ether of cellulose 0.08Kg, polypropylene fibre 0.1Kg, silica solid particle 140Kg.
Composition of raw materials 3: silicates mineral 65Kg, volcano grey matter compound 15Kg, silicon-dioxide powder 7Kg, sulphoaluminate phase 8Kg, fatty alcohol polyethenoxy ether class high molecular weight polymers 0.5Kg, ether of cellulose 0.05Kg, polypropylene fibre 0.06Kg, silica solid particle 120Kg.
Volcano grey matter compound is to be the volcano grey matter compound of the employing flyash standard of main component with silicon oxide and aluminum oxide.
Sulplo-aluminate is mainly anhydrous calcium sulphoaluminate.
To obtain inorganic concrete repair material of high resistance to erosion and abrasion after each raw material mixing.
Using method:
This product constructional method is simple than the epoxies mortar, with normal concrete casting method basically identical.
1, adopts pneumatic pick to cut one deck the destructive concrete surface, expose fresh concrete surface;
2, concrete surface or crack are rinsed well;
3, as follows according to the different patching material of the different depths preparation of repairing the position:
1. 10mm repairs with interior thin layer position or crack: adopt patching material: water=1: 0.14 is mixed with clean slurry.
2. patching material is adopted at the dark or wide position of 10mm～60mm: sand: water=be mixed with mortar at 2: 1: 0.28, and can suitably adjust water consumption during the preparation mortar and guarantee that denseness is about 80mm;
3. patching material is adopted at the above position of 60mm: rubble (20mm): water=be mixed with concrete at 1034: 1101: 150, and can suitably adjust water consumption during concrete batching and guarantee that the slump is about 80mm.
4, thin layer construction can directly be smeared, and the thick-layer construction is adopted shock club to vibrate and built.

Claims (2)

1. inorganic concrete repair material of high resistance to erosion and abrasion, it is characterized in that: patching material is mixed by following material in weight part: silicates mineral 55-70 part, volcano grey matter compound 12-18 part, silicon-dioxide powder 3-12 part, sulphoaluminate phase 6-14 part, fatty alcohol polyethenoxy ether class high molecular weight polymers 0.2-0.8 part, ether of cellulose 0.02-0.08 part, polypropylene fibre 0.03-0.1 part, silica solid particle 100-140 part.
2. inorganic concrete repair material of high resistance to erosion and abrasion according to claim 1 is characterized in that: described volcano grey matter compound is to be the volcano grey matter compound of the employing flyash standard of main component with silicon oxide and aluminum oxide.
CN2009102731636A 2009-12-09 2009-12-09 Inorganic concrete repair material of high resistance to erosion and abrasion Expired - Fee Related CN101759427B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102010160A (en) * 2010-10-29 2011-04-13 广西壮族自治区水利科学研究院 Crack-resistant abrasion-resistant hydraulic concrete and preparation method thereof
CN102850015A (en) * 2012-08-28 2013-01-02 新疆力天建业节能环保工程有限公司 Silica fume surface course repair material
CN104860615A (en) * 2015-03-27 2015-08-26 万华节能科技集团股份有限公司 Mortar for concrete base surface repair, and preparation method thereof
CN109516726A (en) * 2018-11-21 2019-03-26 中国电建集团成都勘测设计研究院有限公司 Sealing off and covering anchorage material suitable for flow turbulence area anchor cable
CN114538862A (en) * 2021-12-22 2022-05-27 中铁十局集团第二工程有限公司 Concrete defect repairing material

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101054270B (en) * 2007-04-07 2010-11-10 葛洲坝集团试验检测有限公司 Sealing agent for combined interface of new and old concrete
CN101538137A (en) * 2009-04-24 2009-09-23 吴运华 High strength silica powder concrete and construction technology

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102010160A (en) * 2010-10-29 2011-04-13 广西壮族自治区水利科学研究院 Crack-resistant abrasion-resistant hydraulic concrete and preparation method thereof
CN102850015A (en) * 2012-08-28 2013-01-02 新疆力天建业节能环保工程有限公司 Silica fume surface course repair material
CN102850015B (en) * 2012-08-28 2014-10-22 新疆力天建业节能环保工程有限公司 Silica fume surface course repair material
CN104860615A (en) * 2015-03-27 2015-08-26 万华节能科技集团股份有限公司 Mortar for concrete base surface repair, and preparation method thereof
CN109516726A (en) * 2018-11-21 2019-03-26 中国电建集团成都勘测设计研究院有限公司 Sealing off and covering anchorage material suitable for flow turbulence area anchor cable
CN114538862A (en) * 2021-12-22 2022-05-27 中铁十局集团第二工程有限公司 Concrete defect repairing material

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