CN106542785A - Repairing concrete crack material and preparation method thereof and using method - Google Patents

Repairing concrete crack material and preparation method thereof and using method Download PDF

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Publication number
CN106542785A
CN106542785A CN201610872027.9A CN201610872027A CN106542785A CN 106542785 A CN106542785 A CN 106542785A CN 201610872027 A CN201610872027 A CN 201610872027A CN 106542785 A CN106542785 A CN 106542785A
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parts
concrete crack
preparation
repairing concrete
repairing
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CN106542785B (en
Inventor
王迎斌
贺行洋
苏英
王庭苇
郑正旗
叶青
代飞
孙艺恒
兰蒙
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Hubei University of Technology
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Hubei University of Technology
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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
    • C04B28/02Compositions 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
    • C04B28/04Portland 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
    • 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
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, 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)

Abstract

The invention discloses a kind of repairing concrete crack material and preparation method thereof and using method, solve the problems, such as the performance that existing concrete crack repairing material is present have much room for improvement, accommodation it is limited.By cullet, by being placed in wet milk after the mixing of above-mentioned part by weight, the part that adds water grinding is obtained slurry to the present invention for breeze, portland cement, water reducer, molasses;Add triethanolamine, welan gum, azodicarbonamide, defoamer, poly- propionate emulsion, polymer dispersion powder and fine sand in the slurry to mix in proportion and obtain final product.Present invention process is simple, control simplicity, low production cost, environmentally friendly, obtained repairing concrete crack material have high intensity, large fluidity, low bleeding rate, high cohesion and certain swelling behavior.

Description

Repairing concrete crack material and preparation method thereof and using method
Technical field
The present invention relates to building material field, specifically a kind of repairing concrete crack material and preparation method thereof and Using method.
Background technology
Concrete factor by inside and out is acted on, and inevitably generates crack.And crack is xoncrete structure The main cause that bearing capacity, durability and anti-permeability performance decline.Once building structure generates crack, the later stage will cause coagulation A series of endurance issues such as the carbonization of soil material, steel bar corrosion, sulfate attack, while also having a strong impact on the outer of building See.
The repairing of distress in concrete is mainly processed using patching material, and patching material requires to grasp with higher The property made, and require with concrete substrate adhesive property preferably, while must have higher intensity to exist to ensure xoncrete structure Destruction caused by environment and concrete material change institute is born during permanent military service.
With the development and the raising of living standards of the people of science and technology, glass is used as construction material and decoration and the container etc. of living It is widely used.Substantial amounts of glass discarded object is inevitably produced simultaneously, forms substantial amounts of cullet.And the degraded of glass 4000 or so are needed, therefore, these cullet are recycled and can mitigate environmental pressure, while producing certain economic effect Benefit.So far, cullet is generally levigate to 10 microns of average grain diameter, and the raw material for being used for concrete as inserts makes With what is utilized is the characteristic of the levigate rear physics filling of glass, and having no precedent is used for repairing concrete crack material by glass Report, use range are limited.
And it is current, the research of repairing concrete crack material has been reported for work both at home and abroad.Such as patent《A kind of distress in concrete is repaiied Supplementary irrigation slurry and preparation method thereof》(should be 201510290303.6) discloses the preparation side of repairing concrete crack grouting material Method:Cement 550-950 parts, glass microballoon 5-30 parts, calcite 20-50 parts, expansion component 50-200 parts, water reducer 1-20 parts, Defoamer 0.5-2 parts, stabilizer 0.5-2 parts, slow setting component 0.5-10 part, the solidifying component 0.1-2 part of rush;Patent《It is a kind of energy-saving Repairing concrete crack agent》(CN201410633648.2) disclose the preparation method of repairing concrete crack agent:Sand 12-18 Part, silica flour 5-10 parts, Portland cement 20-35 parts, sulphate aluminium cement 10-18 parts, waterglass 6-12 parts, poly-vinegar acid Vinyl acetate latex powder 5-9 part, silica flour 3-7 parts, slag powders 7-10 part, flyash 6-9 parts, swelling agent 8-10 parts, polycarboxylic-acid are high Effect water reducer 0.4-0.6 parts, polypropylene fibre 0.2-0.4 parts.Above-mentioned crack patching material with base material bonds well, and can have There is higher-strength, but the former is only applicable to microcrack repairing, for large fracture, it is most likely that because patching material and coagulation soil temperature Degree deforms inconsistent and comes off.The latter is only applicable to crack of the width more than 5mm, and the repairing of fine cracks is not simultaneously applied to, yet It is to say, so far, there is no the crack repairing material of widely applicable and excellent performance.
The content of the invention
The invention aims to solve above-mentioned technical problem, there is provided a kind of process is simple, control simplicity, production cost The preparation method of low repairing concrete crack material.
It is a further object of the present invention to provide a kind of low cost of employing said method preparation, good fluidity, properties The repairing concrete crack material of excellent, applied range.
The further object also invented is to provide a kind of using method of above-mentioned repairing concrete crack material.
Preparation method of the present invention is:The composition by weight of raw material be cullet 20-30 parts, breeze 20-30 parts, portland cement 35-50 parts, water reducer 0.2-0.3 parts, molasses 0.1-0.3 parts, triethanolamine 0.05-0.1 parts, welan gum 0.02-0.2 parts are even Nitrogen diformamide 0.1-0.4 parts, defoamer 0.01-0.05 parts, polyacrylate emulsion 5-10 part, polymer dispersion powder 1-5 parts, Fine sand 0-40 parts;
Its preparation method is:By cullet, after breeze, portland cement, water reducer, molasses are by the mixing of above-mentioned part by weight It is placed in wet milk, the 25-35 parts that add water grinding is obtained slurry;Add triethanolamine, welan gum, azo diformazan in the slurry Acid amides, defoamer, poly- propionate emulsion, polymer dispersion powder and fine sand are mixed in proportion and are obtained final product.
Add water in the wet milk average grain diameter is ground to less than 1 μm.
The fine sand granularity<One or more in the river sand of 4.75cm, quartz sand or Machine-made Sand.
The polymer dispersion powder is SB, vinylacetate-ethylene-tertiary ethylene carbonate is common In polymers, vinyl acetate-acrylate-vinyl versatate copolymer or vinylacetate-ethylene-acrylate copolymer One or two.
The welan gum is architectural grade welan gum.
The polyacrylate emulsion is the non-swelling emulsion of polyacrylate alkali.
Repairing concrete crack material of the present invention, is prepared from using above-mentioned preparation method.
The using method of repairing concrete crack material of the present invention, according to the granularity weight fraction that fracture width adjusts fine sand be 0-40 parts:
When fracture width is less than 0.15cm, without using fine sand;
When fracture width is more than 0.15mm but is less than 0.3, granularity is selected to be less than 0.15mm fine sands, addition is 0-10 parts;
During fracture width 0.3-0.6mm, below 0.3mm continuous grading fine sands are selected, addition is 10-15 parts;
During fracture width 0.6-1.18, below 0.6mm continuous grading fine sands are selected, addition is 15-20 parts;
Below 1.18mm continuous grading fine sands are selected during fracture width 1.18-2.36mm, addition is 20-25 parts;
Less than 2.36 continuous grading fine sands are selected during fracture width 2.36-4.75, addition is 25-30 parts;
Fracture width>Below 4.74mm continuous grading fine sands are selected during 5mm, addition is 30-40 parts.
For having problems in background technology, inventor makes following improvement:
(1) in raw material, creativeness adds cullet, is formed with portland cement, breeze and cullet as material bodies owner Want intensity source, raw material is processed using wet-grinding technology and relative device, on the one hand water can be brought into wet process make portland cement, There is hydration reaction with water and generate hydrated product in breeze, another aspect wet-grinding technology and relative device can also be by portland cement, breeze and useless glass Glass carries out ultra fine, so as to the contact area for greatly increasing raw material and water is easy to calcium hydroxide to discharge, and ultra fine Breeze and cullet and calcium hydroxide secondary reaction of hydration can occur and generate hydrated product, it is higher so as to give patching material Intensity, greatly improves the performance of patching material;And it is levigate after waste glass powder can also make material that there is excellent mobile performance, Give the excellent flowing of patching material and service behaviour.Cullet effect raw material is introduced well by material for repairing using wet-grinding technology and relative device In, improving the performance of material for repairing simultaneously, the addition of cullet is up to 20-30 parts, improves salvage value, is conducive to environment Protection.The cullet can be<The industrial glass waste products such as the cullet bottle of 5mm, windowpane;It is described that to be ground to average grain diameter excellent Less than 1 μm, particle size range is crossed conference and there is a problem of active relatively low causing low strength for choosing.
(2) during the present invention adds water reducer on the one hand to prevent wet-milling with molasses during wet-milling, grain fineness increases And the sticky phenomenon for producing, the ratio of mud is on the other hand reduced, material later strength is improved.The retarding effect controllable of molasses is whole Service behaviour and workability of system etc., the preferred water reducer of the water reducer is polycarboxylate superplasticizer mother liquor, and solid content is 40%, addition is 0.2-0.3 parts, can excessively cause patching material bleeding, reduces the performances such as intensity, too low to cause to repair material Material mobility is poor, it is impossible to be sufficient filling with crack, the sugar is close can be using industry sugaring waste material, solid content>30%, addition For 0.1-0.3 parts, can excessively cause condensation of materials overlong time and affect the strength of materials, it is too low to cause construction operation time mistake It is short and cannot construct;
(3) present invention makes patching material using welan gum (i.e. cellulose is rotten) and polymer dispersion powder as component is adjusted Adhesive property with patching material and base material after excellent water retention property, slurry viscosity and hardening, the welan gum are preferred Using architectural grade welan gum, addition is 0.02-0.2 parts, can excessively cause grouting material viscosity too high and reduce mobility, Cross that I haven't seen you for ages is susceptible to bleeding segregation phenomenon.
(4) after the present invention improves material initial set and final set using azodicarbonamide and poly- propionate alkali swellable emulsions Volume Changes, certain bleed performance that azodicarbonamide has can reduce the volume contraction before patching material initial set, and Poly- propionate alkali swelling type emulsion can keep and the volume contraction change after compensation patching material final set, the azo diformazan Addition 0.1-0.4 parts of acid amides, excessively can cause volume excessively to expand and reduce the strength of materials, and I haven't seen you for ages excessively causes material early stage Underexpansion and reduce the adhesion strength of grouting material and distress in concrete;The poly- propionate alkali swelling type emulsion addition is 5-10 parts, can excessively cause grouting material late expansion excessive and cause concrete crack expansion, and I haven't seen you for ages excessively causes grouting material Late expansion is not enough and reduce its adhesion strength with distress in concrete.
(5) triethanolamine is mixed in raw material of the present invention as exciting agent, can gives material for repairing higher early strength, institute The addition for stating triethanolamine is 0.05-0.1 parts, can excessively cause grouting material early strength too high, and later stage strength retraction, Crossing that I haven't seen you for ages causes grouting material early strength not enough.
In other material components of the invention, the preferred S95 levels breeze of breeze;The preferred PI silicate cements of the portland cement Mud;The molasses are preferably industry sugaring waste material, wherein solid content>30%;Three second of triethanolamine preferred liquid high-purity Hydramine, its moderate purity>99%;The welan gum is architectural grade welan gum;The azodicarbonamide be powdery, effective content> 99%;At least one or two in the defoamer preferably silicone or polyethers;The polymer dispersion powder is benzene Ethylene-butadiene copolymer, vinylacetate-ethylene-vinyl versatate copolymer, vinyl acetate-acrylate-tertiary carbon One or two in vinyl acetate copolymer or vinylacetate-ethylene-acrylate copolymer, wherein effectively containing admittedly> 99%;The triethanolamine is preferably liquid high-purity triethanolamine, its moderate purity>99%.
Further, inventor's discovery, can improve the properties of raw material by the selection to raw material and proportioning, pass through The method of wet-milling improves the mobility of material for repairing, on the premise of superior fluidity, by the particle diameter and volume that adjust fine sand, can To meet the demand in different in width crack well, so as to considerably increase the use range of material for repairing of the present invention.
Present invention process is simple, control is simple, adds cullet as one of main base, be conducive to environment in raw material Protection, obtained repairing concrete crack material have high intensity, large fluidity, low bleeding rate, high cohesion and certain swelling Performance, can be very good to meet the demand in different in width crack, with wide market application foreground.
Specific embodiment
Embodiment 1:
Adjustable concrete crack repairing material prepared by a kind of wet-grinding technology and relative device is prepared for according to technical scheme, is pressed Parts by weight meter, its component be 20 parts of cullet, 30 parts of breeze, 40 parts of portland cement, 0.2 part of water reducer, molasses 0.1 Part, 0.05 part of triethanolamine, 0.02 part of welan gum, 0.1 part of azodicarbonamide, 0.03 part of defoamer, polyacrylate emulsion 8.5 parts, 1 part of polymer dispersion powder, 0 part of fine sand.
Present invention also offers a kind of preparation method of the adjustable concrete crack repairing material of wet-grinding technology and relative device preparation, including Following steps:
(1), by cullet, breeze, portland cement, water reducer, molasses are placed in wet milk after mixing in proportion Jia 25 The water of part is ground 15 minutes.
(2), by the slurry and azodicarbonamide in step 1, welan gum, defoamer, poly- propionate emulsion, dispersible breast Rubber powder, fine sand, triethanolamine are proportionally well mixed.
The related performance indicators such as table 1 of adjustable concrete crack repairing material prepared by a kind of wet-grinding technology and relative device of the present invention:
1 related performance indicators of table
Embodiment 2:
Adjustable concrete crack repairing material prepared by a kind of wet-grinding technology and relative device is prepared for according to technical scheme, is pressed Parts by weight meter, its component be 20 parts of cullet, 30 parts of breeze, 40 parts of portland cement, 0.25 part of water reducer, molasses 0.2 Part, 0.05 part of triethanolamine, 0.02 part of welan gum, 0.1 part of azodicarbonamide, 0.25 part of defoamer, polyacrylate emulsion 8.4 parts, 1 part of polymer dispersion powder, 22 parts of fine sand.
Present invention also offers a kind of preparation method of the adjustable concrete crack repairing material of wet-grinding technology and relative device preparation, including Following steps:
(1), by cullet, breeze, portland cement, water reducer, molasses are placed in wet milk after mixing in proportion Jia 32 The water of part is ground 15 minutes.
(2), by the slurry and azodicarbonamide in step 1, welan gum, defoamer, poly- propionate emulsion, dispersible breast Rubber powder, fine sand, triethanolamine are proportionally well mixed.
The related performance indicators such as table 2 of adjustable concrete crack repairing material prepared by a kind of wet-grinding technology and relative device of the present invention:
2 related performance indicators of table
Embodiment 3:
Adjustable concrete crack repairing material prepared by a kind of wet-grinding technology and relative device is prepared for according to technical scheme, is pressed Parts by weight meter, its component be 30 parts of cullet, 20 parts of breeze, 35 parts of portland cement, 0.2 part of water reducer, molasses 0.3 Part, 0.1 part of triethanolamine, 0.2 part of welan gum, 0.4 part of azodicarbonamide, 0.05 part of defoamer, polyacrylate emulsion 10 Part, 5 parts of polymer dispersion powder, 40 parts of fine sand.
Present invention also offers a kind of preparation method of the adjustable concrete crack repairing material of wet-grinding technology and relative device preparation, including Following steps:
(1), by cullet, breeze, portland cement, water reducer, molasses are placed in wet milk after mixing in proportion Jia 30 The water of part is ground 15 minutes.
(2), by the slurry and azodicarbonamide in step 1, welan gum, defoamer, poly- propionate emulsion, dispersible breast Rubber powder, fine sand, triethanolamine are proportionally well mixed.
The related performance indicators such as table 3 of adjustable concrete crack repairing material prepared by a kind of wet-grinding technology and relative device of the present invention:
3 related performance indicators of table
Embodiment 4:
Adjustable concrete crack repairing material prepared by a kind of wet-grinding technology and relative device is prepared for according to technical scheme, is pressed Parts by weight meter, its component be 25 parts of cullet, 25 parts of breeze, 40 parts of portland cement, 0.2 part of water reducer, molasses 0.1 Part, 0.07 part of triethanolamine, 0.02 part of welan gum, 0.1 part of azodicarbonamide, 0.01 part of defoamer, polyacrylate emulsion 8.5 parts, 1 part of polymer dispersion powder, 18 parts of fine sand.
Present invention also offers a kind of preparation method of the adjustable concrete crack repairing material of wet-grinding technology and relative device preparation, including Following steps:
(1), by cullet, breeze, portland cement, water reducer, molasses are placed in wet milk after mixing in proportion Jia 32 The water of part is ground 15 minutes.
(2), by the slurry and azodicarbonamide in step 1, welan gum, defoamer, poly- propionate emulsion, dispersible breast Rubber powder, fine sand, triethanolamine are proportionally well mixed.
The related performance indicators such as table 4 of adjustable concrete crack repairing material prepared by a kind of wet-grinding technology and relative device of the present invention:
4 related performance indicators of table
Embodiment 5:
Adjustable concrete crack repairing material prepared by a kind of wet-grinding technology and relative device is prepared for according to technical scheme, is pressed Parts by weight meter, its component be 20 parts of cullet, 20 parts of breeze, 50 parts of portland cement, 0.2 part of water reducer, molasses 0.1 Part, 0.05 part of triethanolamine, 0.02 part of welan gum, 0.1 part of azodicarbonamide, 0.03 part of defoamer, polyacrylate emulsion 6.5 parts, 3 parts of polymer dispersion powder, 28 parts of fine sand.
Present invention also offers a kind of preparation method of the adjustable concrete crack repairing material of wet-grinding technology and relative device preparation, including Following steps:
(1), by cullet, breeze, portland cement, water reducer, molasses are placed in wet milk after mixing in proportion Jia 32 The water of part is ground 15 minutes.
(2), by the slurry and azodicarbonamide in step 1, welan gum, defoamer, poly- propionate emulsion, dispersible breast Rubber powder, fine sand, triethanolamine are proportionally well mixed.
The related performance indicators such as table 5 of adjustable concrete crack repairing material prepared by a kind of wet-grinding technology and relative device of the present invention:
5 related performance indicators of table
Embodiment 6:
Adjustable concrete crack repairing material prepared by a kind of wet-grinding technology and relative device is prepared for according to technical scheme, is pressed Parts by weight meter, its component be 30 parts of cullet, 24 parts of breeze, 35 parts of portland cement, 0.3 part of water reducer, molasses 0.3 Part, 0.1 part of triethanolamine, 0.05 part of welan gum, 0.2 part of azodicarbonamide, 0.05 part of defoamer, polyacrylate emulsion 5 Part, 5 parts of polymer dispersion powder, 8 parts of fine sand.
Present invention also offers a kind of preparation method of the adjustable concrete crack repairing material of wet-grinding technology and relative device preparation, including Following steps:
(1), by cullet, breeze, portland cement, water reducer, molasses are placed in wet milk after mixing in proportion Jia 32 The water of part is ground 15 minutes.
(2), by the slurry and azodicarbonamide in step 1, welan gum, defoamer, poly- propionate emulsion, dispersible breast Rubber powder, fine sand, triethanolamine are proportionally well mixed.
The related performance indicators such as table 6 of adjustable concrete crack repairing material prepared by a kind of wet-grinding technology and relative device of the present invention:
6 related performance indicators of table
Comparative example 1:
Count by weight, its component be 0 part of cullet, 30 parts of breeze, 50 parts of portland cement, 0.3 part of water reducer, 0.3 part of molasses, 0.1 part of triethanolamine, 0.2 part of welan gum, 0.4 part of azodicarbonamide, 0.05 part of defoamer, polyacrylate 10 parts of emulsion, 5 parts of polymer dispersion powder, 0 part of fine sand.
Comprise the following steps:
(1), by cullet, breeze, portland cement, water reducer, molasses are placed in wet milk after mixing in proportion Jia 35 The water of part is ground 15 minutes.
(2), by the slurry and azodicarbonamide in step 1, welan gum, defoamer, poly- propionate emulsion, dispersible breast Rubber powder, fine sand, triethanolamine are proportionally well mixed.
Related performance indicators such as table 7:
7 related performance indicators of table
Comparative example 2:
Count by weight, its component be 20 parts of cullet, 20 parts of breeze, 50 parts of portland cement, water reducer 0.25 Part, 0.2 part of molasses, 0.1 part of triethanolamine, 0 part of welan gum, 0.4 part of azodicarbonamide, 0.01 part of defoamer, polyacrylic acid 5 parts of salt emulsion, 4 parts of polymer dispersion powder, 0 part of fine sand.
Comprise the following steps:
(1), by cullet, breeze, portland cement, water reducer, molasses are placed in wet milk after mixing in proportion Jia 30 The water of part is ground 15 minutes.
(2), by the slurry and azodicarbonamide in step 1, welan gum, defoamer, poly- propionate emulsion, dispersible breast Rubber powder, fine sand, triethanolamine are proportionally well mixed.
Related performance indicators such as table 8:
8 related performance indicators of table
Comparative example 3:
Count by weight, its component be 25 parts of cullet, 25 parts of breeze, 46.3 parts of portland cement, water reducer 0.2 Part, 0.1 part of molasses, 0.07 part of triethanolamine, 0.02 part of welan gum, 0.3 part of azodicarbonamide, 0.01 part of defoamer, poly- third 0 part of olefin(e) acid salt emulsion, 3 parts of polymer dispersion powder, 0 part of fine sand.
Comprise the following steps:
(1), by cullet, breeze, portland cement, water reducer, molasses are placed in wet milk after mixing in proportion Jia 28 The water of part is ground 15 minutes.
(2), by the slurry and azodicarbonamide in step 1, welan gum, defoamer, poly- propionate emulsion, dispersible breast Rubber powder, fine sand, triethanolamine are proportionally well mixed.
Related performance indicators such as table 9:
9 related performance indicators of table

Claims (8)

1. a kind of preparation method of repairing concrete crack material, it is characterised in that the composition by weight of raw material is cullet 20-30 Part, breeze 20-30 parts, portland cement 35-50 parts, water reducer 0.2-0.3 parts, molasses 0.1-0.3 parts, triethanolamine 0.05- 0.1 part, welan gum 0.02-0.2 parts, azodicarbonamide 0.1-0.4 parts, defoamer 0.01-0.05 parts, polyacrylate emulsion 5-10 parts, polymer dispersion powder 1-5 parts, fine sand 0-40 parts;
Its preparation method is:Cullet, breeze, portland cement, water reducer, molasses are placed in after mixing by above-mentioned part by weight In wet milk, the 25-35 parts that add water grinding is obtained slurry;Add triethanolamine, welan gum, two formyl of azo in the slurry Amine, defoamer, poly- propionate emulsion, polymer dispersion powder and fine sand are mixed in proportion and are obtained final product.
2. the preparation method of repairing concrete crack material as claimed in claim 1, it is characterised in that in the wet milk plus Water is ground to average grain diameter less than 1 μm.
3. the preparation method of repairing concrete crack material as claimed in claim 1 or 2, it is characterised in that the fine sand granularity For<One or more in the river sand of 4.75cm, quartz sand or Machine-made Sand.
4. the preparation method of repairing concrete crack material as claimed in claim 1, it is characterised in that the polymer dispersion powder For SB, vinylacetate-ethylene-vinyl versatate copolymer, vinyl acetate-acrylate- One or two in vinyl versatate copolymer or vinylacetate-ethylene-acrylate copolymer.
5. the preparation method of repairing concrete crack material as claimed in claim 1, it is characterised in that the welan gum is building Level welan gum.
6. the preparation method of repairing concrete crack material as claimed in claim 1, it is characterised in that the polyacrylate breast Liquid is the non-swelling emulsion of polyacrylate alkali.
7. a kind of repairing concrete crack material, it is characterised in that prepared using preparation method described in any one of claim 1-6 and Into.
8. the using method of repairing concrete crack material described in a kind of claim 7, it is characterised in that adjusted according to fracture width The granularity of fine sand, weight fraction are 0-40 parts:
When fracture width is less than 0.15cm, without using fine sand;
When fracture width is more than 0.15mm but is less than 0.3, granularity is selected to be less than 0.15mm fine sands, addition is 0-10 parts;
During fracture width 0.3-0.6mm, below 0.3mm continuous grading fine sands are selected, addition is 10-15 parts;
During fracture width 0.6-1.18, below 0.6mm continuous grading fine sands are selected, addition is 15-20 parts;
Below 1.18mm continuous grading fine sands are selected during fracture width 1.18-2.36mm, addition is 20-25 parts;
Less than 2.36 continuous grading fine sands are selected during fracture width 2.36-4.75, addition is 25-30 parts;
Fracture width>Below 4.74mm continuous grading fine sands are selected during 5mm, addition is 30-40 parts.
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CN110304847A (en) * 2019-04-11 2019-10-08 武汉理工大学 A kind of wet-milling carbide slag exciting agent and its preparation method and application
CN110590291A (en) * 2019-10-23 2019-12-20 广东穗都建筑工程有限公司 Method for repairing cracking of house wall
CN115304944A (en) * 2022-07-21 2022-11-08 江苏海能电力设计咨询有限责任公司 Steel bar coating material with anti-corrosion effect
CN116040989A (en) * 2022-07-15 2023-05-02 湖北工业大学 Modified permeable concrete based on vinyl versatate copolymer

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CN115304944A (en) * 2022-07-21 2022-11-08 江苏海能电力设计咨询有限责任公司 Steel bar coating material with anti-corrosion effect

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