KR100784493B1 - Light weight hybrid repair mortar composition - Google Patents

Light weight hybrid repair mortar composition Download PDF

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Publication number
KR100784493B1
KR100784493B1 KR1020070046650A KR20070046650A KR100784493B1 KR 100784493 B1 KR100784493 B1 KR 100784493B1 KR 1020070046650 A KR1020070046650 A KR 1020070046650A KR 20070046650 A KR20070046650 A KR 20070046650A KR 100784493 B1 KR100784493 B1 KR 100784493B1
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South Korea
Prior art keywords
mortar
lightweight
powder
repair
mortar composition
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KR1020070046650A
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Korean (ko)
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김경환
손석제
허정
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(주)다음기술단
(주)대도엔지니어링
(주)에이치비티
효림이엔아이(주)
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Priority to KR1020070046650A priority Critical patent/KR100784493B1/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
    • C04B28/02Compositions 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
    • 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
    • C04B14/00Use 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
    • C04B14/02Granular materials, e.g. microballoons
    • C04B14/26Carbonates
    • C04B14/28Carbonates of calcium
    • 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
    • C04B16/00Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B16/04Macromolecular compounds
    • C04B16/06Macromolecular compounds fibrous
    • C04B16/0675Macromolecular compounds fibrous from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B16/0691Polyamides; Polyaramides
    • 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
    • C04B18/00Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/02Agglomerated materials, e.g. artificial aggregates
    • C04B18/027Lightweight 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
    • C04B22/00Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/008Cement and like inorganic materials added as expanding or shrinkage compensating ingredients in mortar or concrete compositions, the expansion being the result of a recrystallisation
    • 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
    • C04B24/00Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24Macromolecular compounds
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • 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
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/304Air-entrainers
    • 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
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/40Surface-active agents, dispersants
    • C04B2103/408Dispersants
    • 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

Abstract

The present invention is capable of recovering the cross-section and neutralization after repair of concrete damaged by various deterioration phenomena such as neutralization, salting and sulphate erosion, reinforcing the surface layer, expressing initial and long-term strength, and having a thickness of 50 mm or more on the ceiling part. Lightweight hybrid repair mortar that can be installed at one time and can be attached even when there is vibration in the surrounding area, so that the lower part of the bridge slab can be repaired without obstructing the traffic of the vehicle, and can exhibit excellent attachment performance in the long term. To provide a composition.
To this end, the present invention is a 30.0 to 40.0% cement, 5.0-15.0% ferritic lightweight aggregate, 5.0-15.0% calcium carbonate (CaCo 3 ) powder, 0.2-1.0% acrylic resin at room temperature and atmospheric pressure (Acrylic Resin), 1.0 ~ 2.0% Vinyl Resin, 0.2% CSA (Calcium Sulphoaluminate) Expander, 1.0 ~ 3.5% Calcium Oxide (CaO) Type Expander, 1.0 ~ 3.5% Anhydrous Gypsum Gypsum), 0.1-0.5% Nylon Fiber, 0.1-0.5% Dispersion Agent, 0.01-0.02% Powder Entraining Agent, 30.0-45.0% Silica Sand ), Characterized in that it is made by mixing in a weight ratio containing as a component.

Description

Light Weight Hybrid Repair Mortar Composition

1 is a view showing the components of the lightweight hybrid repair mortar composition according to the present invention,

2 is a view showing a state of comparing the mortar unit weight of the light weight hybrid repair mortar according to the present invention,

3 is a view showing a change over time of the lightweight hybrid maintenance mortar according to the present invention,

4 is a view showing a state comparing the changes in compressive strength for each age of lightweight hybrid maintenance mortar according to the present invention,

5 is a view showing a state comparing the changes in bending strength for each age of lightweight hybrid maintenance mortar according to the present invention,

6 is a view showing a state comparing the change in the adhesion strength of the lightweight hybrid maintenance mortar according to the present invention,

7 is a view showing a thermal expansion coefficient of the lightweight hybrid maintenance mortar according to the present invention,

8 is a view showing a length change state of the lightweight hybrid maintenance mortar according to the present invention;

9 is a view showing the neutralization depth of the lightweight hybrid maintenance mortar according to the present invention.

The present invention relates to a lightweight hybrid repair mortar composition which is applied for the recovery of the cross section so as to remove concrete damaged by various deterioration phenomena such as neutralization, salt damage, erosion of sulfate, etc., and to perform a role as a structure again.

In general, reinforced concrete structures are damaged due to various factors such as freezing-thawing, salting, neutralization, chemicals, etc. In the case of severe damage, the concrete is dropped and the steel in the concrete is exposed or corroded inside. As a result, the durability and the load capacity are reduced, resulting in a decrease in the service life of the structure.

In order to repair or reinforce the deteriorated portion of the reinforced concrete structure, the construction method by plastering or spraying is applied to repair or reinforce the reinforcing bar by removing the deteriorated damaged concrete and then to restore the part where the concrete has been removed. It is becoming.

As for the mortar of the spraying repair method, registered Korean Patent No. 0412339 (name of the invention: structure repair material composition), and Korean Patent Publication No. 2005-0032358 (name of invention: crude steel type underwater fire separation cross-sectional recovery cement composition), domestic It is a state that the technology such as Unexamined Patent No. 2005-0032359 (name of the invention: low shrinkage grout mortar composition for cross-section injection), Korean Patent No. 0405022 (name of the invention: mortar composition for concrete repair) has been proposed, Spraying repair methods using this technique has the advantage of easy and quick repair.

In addition, as a method of repair using formwork, a technique of Korean Patent No. 04003397 (name of the invention: repair method of old concrete structure of a thousand streams) is proposed, and this technique is applied to a special case.

However, the mortar composition applied to the conventional concrete repair method is prepared in consideration of the influencing factors on the deterioration factors that damage the concrete structure, considering the mechanical behavior with the concrete structure and workability and adhesion performance of the repair mortar Since the systematic mixing method considering the adhesion performance before hardening due to excessive weight is not applied, repair mortar may be prematurely dropped or cracked due to various attachment inhibitory factors such as micro vibration and multilayer construction applied from the outside. There is a problem that there is a possibility.

Accordingly, the present invention has been made to solve the conventional problems as described above, the object of which is to recover the cross-sectional recovery and neutralization after repairing concrete damaged by various degradation phenomena such as neutralization, salt and erosion of sulphate, reinforcement of the surface layer. In addition, the initial and long-term strength can be expressed, and the ceiling can be installed at a thickness of 50mm or more at once, and it can be attached even when vibration exists for a long time. It is possible to provide a light weight hybrid repair mortar composition capable of exhibiting excellent adhesion in vibration and the like in the long term.

In order to achieve the above object, according to the present invention, at room temperature and atmospheric pressure, 30.0-40.0% of cement, 5.0-15.0% of ferritic lightweight aggregate, 5.0-15.0% of calcium carbonate (CaCo 3 ) powder, 0.2-1.0% acrylic resin, 1.0-2.0% vinyl resin, 0.2% CSA (Calcium Sulphoaluminate) expander, 1.0-3.5% calcium oxide (CaO) -based expander, 1.0- 3.5% Anhydrous Gypsum, 0.1-0.5% Nylon Fiber, 0.1-0.5% Dispersion Agent, 0.01-0.02% Powder Entraining Agent, 30.0- It provides a light weight hybrid repair mortar composition comprising 45.0% of silica sand as a component by weight.

Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

That is, Figure 1 is a view showing the components of the lightweight hybrid maintenance mortar composition according to the present invention.

As shown in Figure 1, the lightweight hybrid maintenance mortar composition according to the present invention, at room temperature, atmospheric pressure, 30.0-40.0% cement, 5.0-15.0% ferrite-based lightweight aggregate, 5.0-15.0% powder Form Calcium Carbonate (CaCo 3 ), 0.2-1.0% Acrylic Resin, 1.0-2.0% Vinyl Resin, 0.2% CSA (Calcium Sulphoaluminate) as Expanding Agent, 1.0-3.5% as Expanding Agent Calcium Oxide (CaO), 1.0-3.5% Anhydrous Gypsum, 0.1-0.5% Nylon Fiber, 0.1-0.5% Dispersion Agent, 0.01-0.02% Powder Foam Entrainer (Air entraining agent), it is made by mixing in a weight ratio of 30.0 to 45.0% of silica sand (Silica Sand) as a component.

The lightweight hybrid maintenance mortar composition may include cement, ferrite-based lightweight aggregate, calcium carbonate powder (CaCo3), acrylic resin, vinyl resin, CSA-based expander, calcium oxide (CaO); Anhydrous gypsum, nylon fiber, dispersant, powder bubble entrainer, and silica sand are all obtained by mixing in a mortar mixer in a weight ratio in a dry state for about 2 minutes.

The ferritic lightweight aggregate is a very light aggregate having a density of 0.03 to 0.25 kg / l, and if used in an appropriate amount, the unit weight of mortar or concrete can be lowered without deterioration of performance, and it is chemically neutral incombustible inorganic material, so it is not harmful to the human body. .

The expanding agent is to suppress the generation of mortar and concrete cracks due to the settlement shrinkage (mortar) and drying shrinkage of the mortar, the CSA-based expansion agent serves to suppress the shrinkage until 7 days, CaO-based expansion material Plays a role in suppressing contraction up to 21 days of age.

The acrylic and vinyl resins play a role of improving the flowability of mortar by the ball bearing effect of the polymer particles, preventing the separation by increasing the viscosity of the mortar, and improving the adhesion performance of the existing concrete with its own adhesive strength and bending strength and mortar Not only to increase the surface hardness of, but also to reduce the penetration of false chemicals and water due to the film formation has a neutralizing effect and to prevent the corrosion of the reinforcing steel after repair.

The nylon fiber is a short fiber of 20 microns in diameter having a standard length of 6 mm and a tensile strength of 800 MPa or more, and is mixed at the time of production of the mortar to suppress initial shrinkage cracking, crack diffusion suppression, impact breakage and abrasion, and fatigue load. It is used to increase resistance, flexural strength and toughness.

The mortar powder particle dispersant is a naphthalene or melanin-based high performance sensitizer, the effective molecule of which is adsorbed on cement and various powders to increase the surface charge, to disperse the aggregation of fine particles such as cement with electrostatic repulsion, water or air Release the fabric to increase the fluidity of the paste.

In the present invention, the target compressive strength of the light weight hybrid repair mortar was 35 to 55 MPa at 28 days of age, and the target flow was 170 ± 10 mm.

2 is a view showing a state in which the mortar unit weight of the light weight hybrid repair mortar according to the present invention is compared. As shown in the drawing, the unit weight of the light weight hybrid repair mortar according to the present invention before and after solidification is 1.65 to 1.85. Since it is represented by ton / m 3, it may have excellent adhesion in the state before hardening at a level of 70 to 80% compared to general repair mortars of A, B, and C having a unit weight of 2.0 to 2.25 ton / m 3.

Next, FIG. 3 is a view showing changes in flow over time of the light-weight hybrid repair mortar according to the present invention. As shown in the figure, the flow change according to the time-dependent change of the lightweight repair mortar according to the present invention is an elapsed time of 60 minutes. As a result of measuring the flow change according to the elapsed time at 20 minute intervals, even when the elapsed time was 60 minutes, the flow value showed more than 85% of the initial value, and the workability was sufficient, which satisfies the pot life considering workability.

Figure 4 is a view showing a comparison of the change in compressive strength of each of the lightweight hybrid maintenance mortar according to the present invention, the mortar was tested in accordance with KS F 4042, underwater at a temperature of 20 ± 2 ℃ until a predetermined age After curing, the compressive strength was measured by 28 days of age.

As a result, as shown in Figure 4, the compressive strength of each of the lightweight maintenance mortar according to the present invention, the mortar expressed more than 20 MPa KS F criterion, in particular the target age 28 days expressing more than 40 Mpa Not only does it exceed the specification, it is also able to play a structural role as part of the structure.

Next, FIG. 5 is a view showing a state in which the change in the bending strength of the lightweight hybrid maintenance mortar according to the present invention is compared. The mortar is formed at a temperature of 20 ± 2 ° C. and 65 ± 10% after molding. Cured under humidity conditions for 24 hours, and after demolding, the solution was cured in a curing bath at a temperature of 20 ± 2 ° C., taken out at each age, and tested.

As a result, the bending strength for each age of the lightweight hybrid maintenance mortar according to the present invention is 10cm for the bending strength test, and the bending strength is measured by applying a maximum load having a load speed of 50 ± 10N per second to the center of the side of each mortar. As a result, the flexural strength at the age of 28 days with the KS F norm of 6 MPa or more exhibits 80 MPa or more, and shows a significantly better flexural strength than the general repair mortars of other companies.

Figure 6 is a view showing a comparison of the change in adhesion strength of the light weight hybrid repair mortar according to the present invention, after the predetermined curing for the mortar, apply the adhesive on the mortar sample coating surface and put the upper tension jig on the adhesive By applying a tensile force at a load speed of 10 mm / min in the vertical direction with respect to the sample surface to measure the adhesion strength according to the occurrence of dropping when the maximum tensile load is applied.

As a result, as shown in Fig. 6, the adhesion strength of the light weight hybrid repair mortar according to the present invention exhibits 3.5 MPa or more in which the adhesion strength of the mortar is much higher than 1 MPa or more, which is the KS F standard. Adhesion strength is remarkably better than that of general repair mortars of A, B and C, which is only 2.8 MPa.

7 is a view showing the thermal expansion coefficient of the lightweight hybrid maintenance mortar according to the present invention, as shown in the figure when comparing the thermal expansion coefficient of the lightweight hybrid maintenance mortar according to the present invention, the thermal expansion coefficient of the mortar 1.1 to 1.2, respectively It can be seen that the range is similar to the thermal expansion coefficient of concrete at about 10-5 / ° C.

In other words, if the coefficient of thermal expansion of the repair mortar is significantly different from the existing concrete, after the repair, the interface between the two materials is lifted up and the adhesion becomes weak, resulting in structural instability. Since the concrete exhibits a range similar to the coefficient of thermal expansion of concrete, it becomes possible to behave integrally with the concrete while allowing structural stabilization.

Next, Figure 8 is a view showing the length change state of the lightweight hybrid maintenance mortar according to the present invention, by making the mortar 40 × 40 × 160 mm, respectively, at a temperature of 20 ± 2 ℃, relative humidity of 60 ± 10% After curing for 28 days, the length was measured to calculate the rate of change of length.

As shown in FIG. 8, as a result of measuring the length change rate of the light weight mortar, in the length change test of the light weight hybrid repair mortar according to the present invention, the mortar is expanded by CaO and CSA expanding agents to sufficiently satisfy the KS F standard ± 0.15%. It can be seen that it appears to be satisfied with + 0.05 ~ 0.07%, it has the characteristics that the adhesion and the rate of change of the length is smaller than the general mortar of A, B, C, which shows a relatively large change in length, thus preventing the lifting phenomenon with the existing concrete. The role to play becomes fully possible.

9 is a view showing the neutralization depth of the light-weight hybrid repair mortar according to the present invention, the neutralization resistance test for determining the neutralization depth of the mortar is 5% at a temperature of 20 ± 2 ℃, humidity of 65 ± 10% Mortar was added to the accelerated neutralization tester set to the concentration of carbon dioxide (CO 2), and after 14 days, the mortar was taken out, the cross section was cut, and a 1% phenolphthalein solution was sprayed on the cross section to measure the neutralization depth.

As shown in FIG. 9, as a result of measuring the neutralization depth by the accelerated neutralization experiment of the light weight mortar, the light weight hybrid repair mortar according to the present invention satisfies the KS F standard (2 mm or less) or less and has a value of 1.0 to 1.5 mm. Indicates.

While specific embodiments of the present invention have been described and illustrated above, it will be apparent that the present invention may be embodied in various modifications by those skilled in the art. Such modified embodiments should not be understood individually from the technical spirit or the prospect of the present invention, but should fall within the claims appended to the present invention.

As described above, according to the present invention, the lightweight hybrid repair mortar compensates for the shortcomings of the organic / inorganic material and reduces the separation of the material, and also improves the bond strength and the bending strength of the existing concrete by applying the expansion material and the nylon fiber to the mortar. The effect can be improved.

In addition, the lightweight aggregate is used to lower the unit weight of mortar, thereby overcoming the difficulties of ceiling construction due to the initial and long-term deterioration of adhesion force due to the microscopic vibrations remaining around the structure, and repairing the bridge slab that requires full control of vehicle traffic. The city will have the effect of repair work without partial control or control.

Claims (4)

  1. Under conditions of normal temperature and atmospheric pressure, 30.0-40.0% cement, 5.0-15.0% ferrite lightweight aggregate, 5.0-15.0% calcium carbonate (CaCo 3 ) powder, 0.2-1.0% acrylic resin, 1.0-2.0% vinyl resin, 0.2% CSA (Calcium Sulphoaluminate) expander, 1.0-3.5% calcium oxide (CaO) -based expander, 1.0-3.5% Anhydrous Gypsum, 0.1- 0.5% Nylon Fiber, 0.1 ~ 0.5% Dispersion Agent, 0.01 ~ 0.02% Powder Entraining Agent, 30.0 ~ 45.0% Silica Sand Lightweight hybrid maintenance mortar composition characterized in that the mixture was made in a weight ratio to.
  2. The method of claim 1,
    The cement, ferrite-based lightweight aggregate, calcium carbonate powder (CaCo3), acrylic resin, vinyl resin, CSA-based expanding agent, calcium oxide (CaO); A lightweight hybrid water-retaining mortar composition, which is obtained by mixing anhydrous gypsum, nylon fiber, dispersant, powder bubble entraining agent, and silica sand in a mortar mixer by weight ratio and mixing in a dry state.
  3. The method of claim 1,
    The nylon fiber is a lightweight hybrid water-retaining mortar composition, characterized in that mixed in the production of mortar in the form of short fibers having a tensile strength of 800MPa or more.
  4. The method of claim 1,
    The dispersing agent is a lightweight hybrid water-retaining mortar composition, characterized in that the naphthalene or melanin-based high-performance sensitizer.
KR1020070046650A 2007-05-14 2007-05-14 Light weight hybrid repair mortar composition KR100784493B1 (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100970004B1 (en) 2010-04-15 2010-07-15 오환원 Light weight polymer modified mortar composition using light ash for repairing concrete structure
KR101051761B1 (en) * 2008-08-13 2011-07-25 (주)다음기술단 Methods of repair and reinforcement of concrete structures
KR101057132B1 (en) 2011-04-04 2011-08-16 주식회사 새솔건설화학 Eco organic inorganic hybrid repair mortar composition and repair method of construction using the same
KR101311267B1 (en) 2013-05-31 2013-09-25 에프알앤디건설(주) Concrete repairing method using mortar including self healing materials and admixture, and twin mixing system
KR101436888B1 (en) 2014-04-21 2014-09-02 주식회사 영승 Tile grouting materials composition
CN107352856A (en) * 2017-07-25 2017-11-17 滨州学院 A kind of airfield pavement patching material and preparation method thereof
KR102076167B1 (en) * 2019-06-19 2020-03-02 효림이엔아이(주) Repair and Reinforcement Method using Lightweight Hybrid Mortar
KR102111619B1 (en) * 2019-09-16 2020-05-15 효림이엔아이(주) Hybrid lightweight mortar composition And repair and reinforcement method Using the same
KR102143854B1 (en) * 2019-09-16 2020-08-12 효림이엔아이(주) Hybrid lightweight mortar composition

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10139516A (en) 1996-10-30 1998-05-26 Mitsubishi Materials Corp One-powder type fiber reinforced mortar composition for coating and its production
JPH1135363A (en) 1997-07-18 1999-02-09 Hoechst Gosei Kk Cement composition, cement paste and cement mortar
KR20000014685A (en) * 1998-08-24 2000-03-15 정종순 Light insulating mortar composition having improved curing property and contraction-stability
KR20060004267A (en) * 2004-07-09 2006-01-12 곽상운 Cement mortar composition and concrete composition

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10139516A (en) 1996-10-30 1998-05-26 Mitsubishi Materials Corp One-powder type fiber reinforced mortar composition for coating and its production
JPH1135363A (en) 1997-07-18 1999-02-09 Hoechst Gosei Kk Cement composition, cement paste and cement mortar
KR20000014685A (en) * 1998-08-24 2000-03-15 정종순 Light insulating mortar composition having improved curing property and contraction-stability
KR20060004267A (en) * 2004-07-09 2006-01-12 곽상운 Cement mortar composition and concrete composition

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101051761B1 (en) * 2008-08-13 2011-07-25 (주)다음기술단 Methods of repair and reinforcement of concrete structures
KR100970004B1 (en) 2010-04-15 2010-07-15 오환원 Light weight polymer modified mortar composition using light ash for repairing concrete structure
KR101057132B1 (en) 2011-04-04 2011-08-16 주식회사 새솔건설화학 Eco organic inorganic hybrid repair mortar composition and repair method of construction using the same
KR101311267B1 (en) 2013-05-31 2013-09-25 에프알앤디건설(주) Concrete repairing method using mortar including self healing materials and admixture, and twin mixing system
KR101436888B1 (en) 2014-04-21 2014-09-02 주식회사 영승 Tile grouting materials composition
CN107352856A (en) * 2017-07-25 2017-11-17 滨州学院 A kind of airfield pavement patching material and preparation method thereof
KR102076167B1 (en) * 2019-06-19 2020-03-02 효림이엔아이(주) Repair and Reinforcement Method using Lightweight Hybrid Mortar
KR102111619B1 (en) * 2019-09-16 2020-05-15 효림이엔아이(주) Hybrid lightweight mortar composition And repair and reinforcement method Using the same
KR102143854B1 (en) * 2019-09-16 2020-08-12 효림이엔아이(주) Hybrid lightweight mortar composition

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