CN101250043A - Rapid mending agent for microscopic checks of airport pavement and preparation thereof - Google Patents

Rapid mending agent for microscopic checks of airport pavement and preparation thereof Download PDF

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Publication number
CN101250043A
CN101250043A CNA2008100204592A CN200810020459A CN101250043A CN 101250043 A CN101250043 A CN 101250043A CN A2008100204592 A CNA2008100204592 A CN A2008100204592A CN 200810020459 A CN200810020459 A CN 200810020459A CN 101250043 A CN101250043 A CN 101250043A
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China
Prior art keywords
component
parts
methyl methacrylate
weight
performed polymer
Prior art date
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Application number
CNA2008100204592A
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Chinese (zh)
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CN101250043B (en
Inventor
高培伟
卢小琳
耿飞
李小燕
金少春
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Nanjing University of Aeronautics and Astronautics
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Nanjing University of Aeronautics and Astronautics
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Application filed by Nanjing University of Aeronautics and Astronautics filed Critical Nanjing University of Aeronautics and Astronautics
Priority to CN2008100204592A priority Critical patent/CN101250043B/en
Publication of CN101250043A publication Critical patent/CN101250043A/en
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Publication of CN101250043B publication Critical patent/CN101250043B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • 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
    • C04B2111/34Non-shrinking or non-cracking 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
    • 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
    • C04B2201/10Mortars, concrete or artificial stone characterised by specific physical values for the viscosity

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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)
  • Road Paving Structures (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

The invention relates to an airport pavement micro-crack fast repairing agent and a preparing process, which belongs to the technical field of novel chemical construction materials. The fast repairing agent comprises 100 parts by weight of methyl methacrylate prepolymer which is 100MPa,s-200MPa,s in viscosity, 1.0-2.0 parts by weight of dimethylaniline, an inorganic modifier with a specific surface area of more than 400m2/kg, wherein the inorganic modifier comprises 5-16 parts by weight of cement, 1.0-5.0 parts by weight of SiC powder, 0.1-0.5 parts by weight of graphite powder and 3-12 parts by weight of stone powder, and 0.1-0.5 parts by weight of antioxidant 1010. The repairing agent has the advantages of low viscosity (150MPa,s-300MPa,s), good grouting property, high adhesive intensity, fast curing, small shrinkage and convenient production and usage.

Description

Rapid mending agent for microscopic checks of airport pavement and preparation method thereof
Technical field
The present invention relates to a kind of fast repairing agent that is mainly used in airstrip (comprising runway, taxiway, hardstand etc.) structure microscopic checks, belong to the chemical building material field.
Background technology
The airstrip structure is in secular use, often to stand impact, fatigue and wearing and tearing that different aircraft axles carry and the effects such as freeze-thaw cycle, alternation of wetting and drying and corrosion of physical environment, the microscopic checks of a large amount of width less than 0.2mm can appear, if untimely the repairing, under the effect repeatedly of various deterioration factors, phenomenons such as arrisdefect, disconnected plate appear in constantly expansion of crack, aggravation, reduce road face structure work-ing life, influenced the landing of aircraft.At present, rarely having report about the research and the application of microscopic checks of airport pavement patching material, mainly is to concentrate in highway road face and fabric structure thing and the repairing than large fracture.Patching material commonly used mainly contains three classes: the first kind, inorganic patching material is mainly by the mortar of the Portland cement and the preparation of gathering materials and the cement-based material of concrete and use special cement (as high-alumina cement, aluminosulfate cement, fluoroaluminate cement) and function ingredients (as microdilatancy component, diminishing component etc.) preparation; Second class, inorganic materials and organic materials compound polymkeric substance patching material mainly contain polymkeric substance (as ACRYLIC EMULSION, styrene-butadiene emulsion etc.) modified mortar and concrete etc.; The 3rd class, organic polymer material as various resin materials such as Resins, epoxy, urethane and vinylformic acid, is mainly used to repair the cracking of asphalt concrete pavement.Existing patching material or existence and old concrete cohesive strength are low, set time is long, only be applicable to shortcoming such as the damaged repairing of big area, or have deficiencies such as shrinkage strain is big, viscosity is high, fragility is big, be difficult to satisfy the repair technology of microscopic checks of airport pavement and repair after the requirement that can let fly away fast.
Summary of the invention
The objective of the invention is to be to provide a kind of viscosity low (150mPas-300mPas), concrete castability is good, cohesive strength is high, curing speed is fast, contraction is little, and production and rapid mending agent for microscopic checks of airport pavement and preparation method easy to use.
A kind of rapid mending agent for microscopic checks of airport pavement is characterized in that its component and mass percent are:
Component 1: methyl methacrylate performed polymer, viscosity are 100mPas-200mPas, 100 parts;
Component 2: xylidine, 1.0-2.0 part;
Component 3: inorganic modified dose, its specific surface area is greater than 400m 2/ kg contains cement 5-16 part, SiC powder 1.0-5.0 part, Graphite Powder 99 0.1-0.5 part, stone flour 3-12 part;
Component 4: antioxidant 1010,0.1-0.5 part.
A kind of preparation method of rapid mending agent for microscopic checks of airport pavement is characterized in that:
(1) prepare the methyl methacrylate performed polymer with ordinary method, when the 100mPas-200mPas, it is standby reactant to be taken out and is cooled to rapidly normal temperature with its viscosity controller;
(2) the methyl methacrylate performed polymer that (1) step was made with xylidine, inorganic modified dose and antioxidant 1010, gets final product by the even mix of following mass percent:
Component 1: methyl methacrylate performed polymer, 100 parts;
Component 2: xylidine, 1.0-2.0 part;
Component 3: inorganic modified dose, its specific surface area is greater than 400m 2/ kg contains cement 5-16 part, SiC powder 1.0-5.0 part, Graphite Powder 99 0.1-0.5 part, stone flour 3-12 part;
Component 4: antioxidant 1010,0.1-0.5 part.
Methyl methacrylate performed polymer among the present invention is the material of main part of fast repairing agent, and perviousness is strong, and the after polymerization curing by unsaturated double-bond produces cohesive strength, reaches the effect that repair in the crack.The viscosity controller of methyl methacrylate performed polymer at 100mPas-200mPas, has been guaranteed that the initial viscosity of fast repairing agent is about 150mPas-300mPas.With the component of methyl methacrylate performed polymer as fast repairing agent, not only can reduce the polymer reaction system in the volumetric shrinkage in later stage, also being convenient to the present invention can construct quickly and easily, improves repairing efficiency.Xylidine is a curing catalyst, quickens the curing reaction of methyl methacrylate performed polymer, realizes the functional requirement of repairing fast.Inorganic modified dose is to be made up of by a certain percentage cement, SiC powder, Graphite Powder 99 and stone flour, not only can reduce production cost of the present invention, more can improve shock resistance, contraction and the mechanical property of fast repairing agent.Inorganic modified dose of specific surface area is greater than 400m 2/ kg helps improving the homogeneity of healant, and is easy to infiltrate in the microscopic checks.Antioxidant 1010 is in order to improve the ageing resistance of healant in atmospheric environment.
The rapid mending agent for microscopic checks of airport pavement of the present invention's preparation, system is based on the advanced composite material of polymkeric substance, its Main Feature is: the initial viscosity of (1) fast repairing agent is about 150mPas-300mPas, can be penetrated into apace in the microscopic checks, depth of penetration can reach 15cm-35cm, satisfies the repairing requirement of microscopic checks of airport pavement.(2) lack the set time of fast repairing agent, can satisfy airstrip let and reduced financial loss rapidly fly away after repairing requirement.(3) fast repairing agent has the good mechanical performance, and its tensile strength can reach more than the 25MPa, and flexural strength can reach more than the 50MPa; And strong with the cohesive force of old concrete, generally can reach 85% of the whole flexural tensile strength of concrete.(4) ageing resistance of fast repairing agent is good, and with former concrete color basically identical, no significant difference.
Embodiment
Embodiment 1
Component 1: methyl methacrylate performed polymer, 100 parts;
Component 2: xylidine, 1.2 parts;
Component 3: inorganic modified dose, contain 5 parts of 42.5 grades of silicate cements, 3.0 parts in SiC powder, 0.10 part of Graphite Powder 99,3.0 parts of stone flours;
Component 4: antioxidant 1010,0.10 part.
The concrete preparation method of component 1 is: by 100 parts of methyl methacrylates, 0.65 part of dibenzoyl peroxide, 20 parts of dibutyl phthalates, mass polymerization is about 35 minutes in 78 ℃ of water-baths, when its viscosity rose to 145mPas, it was stand-by reactant to be taken out and is cooled in frozen water rapidly normal temperature.Component 1 among embodiment 2, embodiment 3 and the embodiment 4 all thus legal system get.
With four kinds of components according to the above ratio uniform mixing can make the present invention, its initial viscosity is 194mPas, tensile strength is 26.5MPa, flexural strength is 52.5MPa, be 140min set time, almost do not have contraction, repairs the concrete flexural tensile strength in back and can return to more than 92%, test specimen produces new surface of fracture, and color is a grey.
Detection method explanation about healant:
Viscosity test: carry out with reference to GB/T2794-1995 " mensuration of tackiness agent viscosity ", adopt NDJ-1 type rotary viscosity design determining;
Tensile strength test: carry out with reference to GB1040-79 " plastic tensile test method ";
Bending strength test: carry out with reference to GB1042-79 " plastics bend test method ";
Test set time: carry out with reference to GB/T14074.7-93 " wood adhesive and the resin method of inspection thereof ";
Flexural tensile strength recovery rate: the mortar specimen that adopts 40 * 40 * 160mm, the proportioning of mortar is a cement: sand: water=1: 3: 0.5, measure the flexural tensile strength of mortar specimen earlier, to destroy then and test its flexural tensile strength again after test specimen is repaired with healant of the present invention, both ratio is the flexural tensile strength recovery rate.
Embodiment 2
Component 1: methyl methacrylate performed polymer, 100 parts;
Component 2: xylidine, 1.5 parts;
Component 3: inorganic modified dose, contain 12 parts of 42.5 grades of silicate cements, 3.0 parts in SiC powder, 0.20 part of Graphite Powder 99,6.8 parts of stone flours;
Component 4: antioxidant 1010,0.3 part.
With four kinds of components according to the above ratio uniform mixing can make the present invention, its initial viscosity is 200mPas, tensile strength is 28.3MPa, flexural strength is 54.4MPa, be 132min set time, almost do not have contraction, repairs the concrete flexural tensile strength in back and can return to more than 93%, test specimen produces new surface of fracture, and color is a grey.
Embodiment 3
Component 1: methyl methacrylate performed polymer, 100 parts;
Component 2: xylidine, 1.8 parts;
Component 3: inorganic modified dose, contain 14 parts of 42.5 grades of silicate cements, 3.0 parts in SiC powder, 0.30 part of Graphite Powder 99,7.7 parts of stone flours;
Component 4: antioxidant 1010,0.2 part.
With four kinds of components according to the above ratio uniform mixing can make the present invention, its initial viscosity is 203mPas, tensile strength is 36.6MPa, flexural strength is 63.8MPa, be 127min set time, almost do not have contraction, repairs the concrete flexural tensile strength in back and can return to more than 95%, test specimen produces new surface of fracture, and color is a grey.
Embodiment 4
Component 1: methyl methacrylate performed polymer, 100 parts;
Component 2: xylidine, 1.8 parts;
Component 3: inorganic modified dose, contain 5 parts of 42.5 grades of silicate cements, 2.0 parts in SiC powder, 0.50 part of Graphite Powder 99,12 parts of stone flours;
Component 4: antioxidant 1010,0.5 part.
With four kinds of components according to the above ratio uniform mixing can make the present invention, its initial viscosity is 208mPas, tensile strength is 34.5MPa, flexural strength is 61.7MPa, be 124min set time, almost do not have contraction, repairs the concrete flexural tensile strength in back and can return to more than 95%, test specimen produces new surface of fracture, and color is a grey.
Embodiment 5
Component 1: methyl methacrylate performed polymer, 100 parts;
Component 2: xylidine, 2.0 parts;
Component 3: inorganic modified dose, contain 6 parts of 42.5 grades of silicate cements, 5.0 parts in SiC powder, 0.10 part of Graphite Powder 99,4.9 parts of stone flours;
Component 4: antioxidant 1010,0.1 part.
With four kinds of components according to the above ratio uniform mixing can make the present invention, its initial viscosity is 198mPas, tensile strength is 37.5MPa, flexural strength is 66.8MPa, be 116min set time, almost do not have contraction, repairs the concrete flexural tensile strength in back and can return to more than 96%, test specimen produces new surface of fracture, and color is a grey.

Claims (4)

1, a kind of rapid mending agent for microscopic checks of airport pavement is characterized in that its component and mass percent are:
Component 1: methyl methacrylate performed polymer, viscosity are 100mPas-200mPas, 100 parts;
Component 2: xylidine, 1.0-2.0 part;
Component 3: inorganic modified dose, its specific surface area is greater than 400m 2/ kg contains cement 5-16 part, SiC powder 1.0-5.0 part, Graphite Powder 99 0.1-0.5 part, stone flour 3-12 part;
Component 4: antioxidant 1010,0.1-0.5 part.
2, rapid mending agent for microscopic checks of airport pavement as claimed in claim 1 is characterized in that: described cement is 42.5 grades and above silicate cement,
3, a kind of preparation method of rapid mending agent for microscopic checks of airport pavement is characterized in that:
(1) prepare the methyl methacrylate performed polymer with ordinary method, when the 100mPas-200mPas, it is standby reactant to be taken out and is cooled to rapidly normal temperature with its viscosity controller;
(2) the methyl methacrylate performed polymer that (1) step was made with xylidine, inorganic modified dose and antioxidant 1010, gets final product by the even mix of following mass percent:
Component 1: methyl methacrylate performed polymer, 100 parts;
Component 2: xylidine, 1.0-2.0 part;
Component 3: inorganic modified dose, its specific surface area is greater than 400m 2/ kg contains cement 5-16 part, SiC powder 1.0-5.0 part, Graphite Powder 99 0.1-0.5 part, stone flour 3-12 part;
Component 4: antioxidant 1010,0.1-0.5 part.
4, the preparation method of rapid mending agent for microscopic checks of airport pavement according to claim 3, it is characterized in that the described method for preparing the methyl methacrylate performed polymer is: press mass fraction with 100 parts of methyl methacrylates, dibenzoyl peroxide 0.6-0.7 part, dibutyl phthalate 20-40 part, in 75-80 ℃ of water-bath the about 30-40 of mass polymerization minute, when its viscosity rises to 100mPas-200mPas, the reactant taking-up also is cooled to normal temperature rapidly in frozen water, standby.
CN2008100204592A 2008-03-07 2008-03-07 Rapid mending agent for microscopic checks of airport pavement and preparation thereof Expired - Fee Related CN101250043B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008100204592A CN101250043B (en) 2008-03-07 2008-03-07 Rapid mending agent for microscopic checks of airport pavement and preparation thereof

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Application Number Priority Date Filing Date Title
CN2008100204592A CN101250043B (en) 2008-03-07 2008-03-07 Rapid mending agent for microscopic checks of airport pavement and preparation thereof

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CN101250043A true CN101250043A (en) 2008-08-27
CN101250043B CN101250043B (en) 2010-09-29

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101786831B (en) * 2010-01-19 2012-09-05 南京航空航天大学 Quick healant with low viscosity and high performance for concrete structure
CN105218058A (en) * 2015-11-04 2016-01-06 江苏名和集团有限公司 A kind of concrete speed is hammered in slurry healant
CN106479299A (en) * 2016-10-19 2017-03-08 天津佰思特新材料科技有限公司 A kind of new concrete accelerated surface renovation agent and construction method
CN111747713A (en) * 2020-07-30 2020-10-09 贵州省交通规划勘察设计研究院股份有限公司 Early-strength self-leveling concrete pavement rapid repairing material and preparation method thereof
CN113045255A (en) * 2021-04-08 2021-06-29 王勇 Antifreezing high-temperature-resistant concrete repairing agent and preparation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101786831B (en) * 2010-01-19 2012-09-05 南京航空航天大学 Quick healant with low viscosity and high performance for concrete structure
CN105218058A (en) * 2015-11-04 2016-01-06 江苏名和集团有限公司 A kind of concrete speed is hammered in slurry healant
CN106479299A (en) * 2016-10-19 2017-03-08 天津佰思特新材料科技有限公司 A kind of new concrete accelerated surface renovation agent and construction method
CN111747713A (en) * 2020-07-30 2020-10-09 贵州省交通规划勘察设计研究院股份有限公司 Early-strength self-leveling concrete pavement rapid repairing material and preparation method thereof
CN113045255A (en) * 2021-04-08 2021-06-29 王勇 Antifreezing high-temperature-resistant concrete repairing agent and preparation method thereof

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