KR102390756B1 - Ultra rapidly road reinforce composition and manufacturing metho thereof and construction method using thereof - Google Patents

Abstract

The present invention provides an ultra-rapid hardening road reinforcement composition which is manufactured by adding and mixing, to 100 parts by weight of a mortar mixture in which early strength cement, magnesia cement, and ceramic powder are mixed in a volume ratio of 2 : 1 : 2, 50 to 70 parts by weight of acrylamide, 40 to 60 parts by weight of tetrahydrofuran, 30 to 50 parts by weight of 1,4-dioxane, 20 to 40 parts by weight of acrylonitrile, 10 to 30 parts by weight of methacrylonitrile, 5 to 15 parts by weight of methyl magnesium iodide, 5 to 10 parts by weight of polyoxyethylene terephthalate, and 1 to 5 parts by weight of naphthalene-1,5-diisocyanate.

Description

Ultra rapidly road reinforcement composition and manufacturing method thereof and construction method using thereof

The present invention relates to a superfast road repair reinforcing agent, a manufacturing method thereof, and a construction method using the same, and more particularly, has a simple workability that can be constructed by mixing only water without using a separate primer at the work site, and a concrete road and a super fast road repair reinforcing agent, which cures quickly while maintaining excellent adhesion to asphalt roads, is high strength and has excellent waterproof function, and can provide super fast, high strength, non-shrinkage and high durability functions, manufacturing method thereof, and using the same It is about the construction method.

In general, concrete structures are subjected to various natural or artificial actions after construction, and their physical performance deteriorates due to physical and chemical transformations according to the years of use. In particular, in recent years, efforts to restore safety and functional performance by performing repairs in terms of securing safety and performance of construction structures are increasing. If the aging phenomenon of these construction structures is accelerated, the expansion pressure caused by rebar corrosion, freeze-thaw, carbonation (neutralization), etc. causes cross-section defects in the structure, that is, the concrete part, resulting in aesthetic, structural, and functional functionalities. In terms of safety, it contains problems that can pose a risk.

In addition, when repair or reinforcement work is carried out to improve these problems, the function of the structure must be stopped because the work of the structure must be stopped during the construction period.

On the other hand, most of the fast-hardening or super-fast-hardening mortars currently used as materials for repair are typically Portland cement-based mortars, and several types of mortars have been manufactured and used before. For example, there is a method of preparing a mortar by adding CSA (calcium sulfoaluminate) or a latex-based material and adding a predetermined high fine powder binding material. Most of these existing super fast hardening or fast hardening mortars are based on the reaction point of the formation of Ettringite, an expansive material obtained from a chemical reaction between cement and water, CA·CA2 is used according to the constituent minerals that exhibit fast hardening. It can be classified into an aluminate-based mortar having a main component, a calcium fluoroaluminate-based mortar containing C11A7·CaF2 as a main component, and a subatomic mortar containing CSA as a main component.

However, the aluminate-based mortar is not stable in the long term because the product is transferred to a secondary hydrate that exhibits low strength after the hydration reaction, and is particularly vulnerable to calcium chloride. In addition, although calcium fluoroaluminate-based and sub-one-based mortars have relatively superior performance, it may not be economical because a separate firing process is required and a process of pulverizing into fine powder is added.

In addition, most of the mortars produced through the alkali-activated material as described above are fast-hardening, not super-quick-hardening, and require at least 1 day or more to develop strength after mixing with water. For example, it is difficult to apply to road repairs, bridge repairs, construction in places in contact with water, etc.) in the winter season.

For this reason, to overcome the problem of strength development time of mortar, super-fast hardening mortar is manufactured and used using alumina cement and jet cement developed in the cement industry. Its use is limited because it is very sensitive to the durability (freeze-thaw, carbonation, etc.) related to the quality of the mortar and the outside temperature (dry shrinkage, etc.).

In order to solve this problem, in Korean Patent Laid-Open Patent Publication No. 10-2015-0047929 No. 10 to 20 parts by weight of phosphate, 3 to 6 parts by weight of calcium silicate, 15 to 25 parts by weight of silica fume, 20 to 60 parts by weight of inorganic binder, 5 to 5 parts by weight of aluminum oxide By including 10 parts by weight and 5 to 10 parts by weight of magnesium oxide, it is possible to repair the road in an eco-friendly manner without containing lime components such as conventional Portland cement, and it is possible to solve the problem of delay in curing time in winter, and Because the curing time is faster than Portland cement, it is possible to repair defective parts of the road in a short time, achieving economical and excellent stability.

However, in the prior art, there is a problem that it cannot be constructed by mixing only water without using a separate primer, and it is insufficient for use in water and cryogenic freezers.

As a known technology to solve this problem, in Korean Patent No. 10-1507765, only water is mixed in an appropriate ratio and poured on the site, and after 30 minutes, it is applied to have a high compression strength of 20 MPa or more and a high adhesion strength of 1.7 MPa or more. As a composition, a first composition is obtained by mixing light magnesium oxide (MgO, light) and monobasic sodium phosphate (NaH2PO4) calcined in a range of 600 to 700° C. in a weight ratio of 1:1±0.2, and 30±10 weight of the first composition A ceramic mortar composition for repairing cracks in pavements is disclosed by mixing 25±5 parts by weight of calcium silicate (CaSiO3), 15±5 parts by weight of calcined shell powder, and 30±10 parts by weight of silica to form a 100wt% composition. there is.

However, the composition according to the prior art has a problem in that the properties such as compressive strength and adhesion strength are not yet sufficient, so that the desired level of properties cannot be obtained during construction in the field.

The self-adhesive waterproof sheet polymerizes a polymer with excellent molecular weight, softening point, and tensile strength according to the manufacturing method of polymerization temperature, resin, input sequence, and input time, and allows this polymer to be applied to the waterproof adhesive layer, thereby providing bonding strength between asphalt and other resins. This increases, and it can adhere well to the adherend surface (asphalt or cement), and the adhesive waterproof layer has strong adhesion and excellent elongation. It provides the effect of guaranteeing excellent waterproofness due to its excellent adaptability to the phenomenon or the behavior of the substrate.

As another conventional example, the rubberized asphalt-based self-adhesive waterproof/corrosive sheet disclosed in Patent Publication No. 10-2012-0069189 is a waterproofing layer comprising asphalt, styrenic block copolymer, paraffin-based viscoelastic oil, petroleum resin, and polybutene. ; and a high-density polyethylene layer laminated on the waterproof layer, wherein the waterproof layer is 30 to 70% by weight of asphalt, 1 to 30% by weight of styrenic block copolymer, and 0.5 to 20% by weight of paraffinic viscoelastic synthetic oil Consists of.

According to this configuration, it has excellent crack followability and low-temperature flexibility, and the adhesiveness of the waterproofing material itself is not the bonding method of the joint between the base surface of the concrete structure or the waterproofing sheet or the bonding method using an adhesive. It is a non-fusible/non-heating type bonding method that attaches using an adhesive and provides an effect that can fundamentally solve the problem of water leakage in the joint, which has the highest frequency of leakage in the existing sheet waterproofing method.

Another conventional self-adhesive waterproof sheet is Japanese Patent Application Laid-Open No. 57-98559, Japanese Patent Application Laid-Open No. 57-139143, US Patent No. 4,485,201, Korean Patent No. 0332632, Korean Patent No. 0388810, Korean Patent Registration It is disclosed in No. 0569694, Korean Patent No. 0701822, Korean Patent No. 0671412, Korean Patent No. 0726350, Korean Patent Application Publication No. 2009-0090532, and Korean Patent Application Publication No. 2009-0056756.

However, it was found that each self-adhesive waterproof sheet as described above causes some problems. First, it is not easy to install and use due to excessive weight, and there is a problem in that the safety of the building or structure is lowered.

In addition, as the surface of the waterproof sheet is rough and not smooth, as time passes after installation, pests and insects parasitize or cluster and damage the waterproof sheet. There is a problem that the applicability is deteriorated.

In addition, there is a problem in that the strength is relatively weak, and the lifespan and maintainability are deteriorated.

On the other hand, in the conventional composite waterproofing method using a self-adhesive waterproofing sheet, since the waterproofing sheet is adhered to the upper layer of the primer layer after the primer layer is constructed on the base after simply cleaning up foreign substances on the base, In the case of local cracks, there is a problem in that the waterproof function according to the composite waterproofing method is significantly lowered if the local cracks of the base are not reinforced.

Therefore, it is an object of the present invention to have simple workability that can be constructed by mixing only water without using a separate primer at the work site, while maintaining excellent adhesion to concrete and asphalt roads, cured quickly, and has a high strength and waterproof function It is to provide a super-velocity road repair reinforcing agent, a manufacturing method thereof, and a construction method using the same, which is excellent and can provide super-velocity, high-strength, non-shrinkage, and high-durability functions.

On the other hand, the object of the present invention is not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

According to the present invention, 50 to 70 parts by weight of acrylamide, 40 to 60 parts by weight of tetrahydrofuran, 1, 30 to 50 parts by weight of 4-dioxane, 20 to 40 parts by weight of acrylonitrile, 10 to 30 parts by weight of methacrylonitrile, 5 to 15 parts by weight of methylmagnesium iodide, 5 to 10 parts by weight of polyoxyethylene terephthalate and There is provided a super fast hardness road repair reinforcing agent in which 1 to 5 parts by weight of naphthalene-1,5-diisocyanate is added and mixed.

In addition, according to the present invention, the step of mixing crude steel cement, magnesia cement and ceramic powder in a volume ratio of 2: 1:2; To 100 parts by weight of the mortar mixture in which the crude cement, magnesia cement and ceramic powder are mixed, 50 to 70 parts by weight of acrylamide, 40 to 60 parts by weight of tetrahydrofuran, 30 to 50 parts by weight of 1,4-dioxane, acrylonitrile 20 to 40 parts by weight, 10 to 30 parts by weight of methacrylonitrile, 5 to 15 parts by weight of methylmagnesium iodide, 5 to 10 parts by weight of polyoxyethylene terephthalate, and 1 to 5 parts by weight of naphthalene-1,5-diisocyanate There is provided a method for manufacturing an ultra-high-speed road repair reinforcing agent comprising the step of additionally adding and mixing.

In addition, according to the present invention, the pretreatment operation is carried out on the surface of the base surface including the super-velocity road repair reinforcing agent and having a crack reinforcement portion; There is provided a construction method using the super-velocity road repair reinforcing agent, which includes the step of creating a crack repair reinforcing layer by constructing the crack reinforcing part after mixing and stirring the super-velocity road repair reinforcing agent and water at a predetermined weight.

Therefore, according to the present invention, it has simple workability that can be constructed by mixing only water without using a separate primer at the work site, and has excellent adhesion to concrete and asphalt roads while being cured quickly and has a high strength and waterproof function This is excellent, and it can provide initial velocity, high strength, no shrinkage, and high durability.

On the other hand, the effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

Hereinafter, embodiments of the present invention will be described in detail.

First, the super-velocity road repair reinforcing agent according to an embodiment of the present invention is a mortar mixture in which crude steel cement, magnesia cement and ceramic powder are mixed with acrylamide, tetrahydrofuran, 1,4-dioxane, acrylonitrile, methacrylonitrile Nitrile, methylmagnesium iodide, polyoxyethylene terephthalate and naphthalene-1,5-diisocyanate are added and mixed.

More preferably, the super-velocity road repair reinforcing agent according to an embodiment of the present invention comprises 50 to 70 weight of acrylamide in 100 parts by weight of a mortar mixture in which crude steel cement, magnesia cement and ceramic powder are mixed in a volume ratio of 2: 1 : 2 parts, 40 to 60 parts by weight of tetrahydrofuran, 30 to 50 parts by weight of 1,4-dioxane, 20 to 40 parts by weight of acrylonitrile, 10 to 30 parts by weight of methacrylonitrile, 5 to 15 parts by weight of methylmagnesium iodide parts, and 5 to 10 parts by weight of polyoxyethylene terephthalate and 1 to 5 parts by weight of naphthalene-1,5-diisocyanate are added and mixed.

On the other hand, the manufacturing method of the super-velocity road repair reinforcing agent according to an embodiment of the present invention comprises the steps of mixing crude steel cement, magnesia cement and ceramic powder in a volume ratio of 2: 1:2, and the crude steel cement, magnesia cement and ceramic powder. 50 to 70 parts by weight of acrylamide, 40 to 60 parts by weight of tetrahydrofuran, 30 to 50 parts by weight of 1,4-dioxane, 20 to 40 parts by weight of acrylonitrile, methacrylonitrile to 100 parts by weight of the mixed mortar mixture 10 to 30 parts by weight, 5 to 15 parts by weight of methylmagnesium iodide, 5 to 10 parts by weight of polyoxyethylene terephthalate, and 1 to 5 parts by weight of naphthalene-1,5-diisocyanate are added and mixed. do.

The mortar mixture provides a function of improving adhesive strength by smoothly penetrating into cracks or reinforcing parts of a road after crude steel cement, magnesia cement and ceramic powder are stirred by water and then adhered.

Crude cement is a means of providing physical properties that provides the fastest curing speed and high tensile strength when mixed with water among Portland cements, and can enable early strength to be expressed during construction for order.

Magnesia cement is a cement made by mixing magnesium oxide with a magnesium chloride solution as a curing agent for forming a gel by hydration reaction when mixed with water, securing physical properties such as strength, penetrating into pores, and providing separation resistance.

Ceramic powder provides corrosion resistance, abrasion resistance and permeability when mixed with water to provide physical properties enabling rapid crack repair or reinforcement work in the field, and includes calcium silicate, litchi shell powder, sodium phosphate, and the like.

Here, in the mortar mixture, crude steel cement, magnesia cement and ceramic powder are mixed in a volume ratio of 2:1:2. At this time, if the crude steel cement is less than the volume ratio of 2, the physical performance of the block by injection during order or grouting is insufficient and it takes a lot of time to harden, and if the crude steel cement exceeds the volume ratio of 2, it is mixed with water Hardening occurs, making injection or spraying impossible. In addition, when the magnesia cement is less than a volume ratio of 1, the binding force of the additive compositions is lowered to lower the strength of the grouting block, and when the magnesia cement exceeds a volume ratio of 1, the stirrability of the additive compositions is reduced. In addition, when the ceramic powder is less than the volume ratio of 2, the penetration performance of the cracked area is lowered, and the corrosion resistance and abrasion resistance are also reduced. The overall adhesive strength is lowered by suppressing the gelation reaction. Accordingly, the mortar mixture preferably has a limited volume ratio as described above.

Acrylamide is a resinous, fibrous, and resilient material belonging to the organic polymer family for improving the adhesive strength between the injection material and the cracked or reinforcing portion of the road.

Here, 50 to 70 parts by weight of acrylamide is mixed based on 100 parts by weight of the mortar mixture. When less than 50 parts by weight is mixed, water repellency is reduced, and when mixed more than 70 parts by weight, adhesive strength and compressive strength are lowered. Therefore, it is preferable to have the limited parts by weight as described above.

Tetrahydrofuran is a substance that reacts with the mixed compositions to form a water-ordering layer.

Here, 40 to 60 parts by weight of tetrahydrofuran is mixed with respect to 100 parts by weight of the mortar mixture. When less than 40 parts by weight is mixed, the adhesive strength is lowered, and when mixed more than 60 parts by weight, the viscosity becomes too large, so that the permeability or Since there is a problem that the injectability is lowered, it is preferable to have the limited parts by weight as described above.

1,4-dioxane is a binding material for reacting with the mixture compositions to provide a desired viscosity.

Here, 1,4-dioxane is mixed with 30 to 50 parts by weight with respect to 100 parts by weight of the mortar mixture. When less than 30 parts by weight is mixed, the overall viscosity of the injection material becomes too large to decrease the permeability, and more than 50 parts by weight When mixed, the overall viscosity of the injection material becomes too small, dispersibility is increased, and there is a problem in that workability is greatly reduced. Therefore, it is preferable to have a limited weight part as described above.

Acrylonitrile is a resin composition that provides improved impact resistance strength of the water-blocking layer and provides heat resistance, moisture resistance and mechanical properties.

Here, 20 to 40 parts by weight of acrylonitrile is mixed with respect to 100 parts by weight of the mortar mixture, and when less than 20 parts by weight is mixed, the impact strength is lowered, and when more than 40 parts by weight is mixed, the viscosity is high and the stirrability is lowered However, it is preferable to have a limited weight portion as described above, because the adhesive strength is lowered by hardening rather than the cracked surface of concrete or asphalt and there is a problem in that the water resistance is reduced due to easy separation from the cracked surface of concrete or asphalt.

Methacrylonitrile is a composition that provides durability, heat resistance, chemical resistance, abrasion resistance and weather resistance and corrosion inhibition, and penetrates into cracks in concrete or asphalt to improve adhesion strength and toughness.

Here, methacrylonitrile is mixed with 10 to 30 parts by weight with respect to 100 parts by weight of the mortar mixture. When less than 10 parts by weight is mixed, the adhesion strength is lowered, and when more than 30 parts by weight is mixed, the viscosity is increased and the permeability is lowered. And since there is a problem that the adhesion strength is lowered, it is preferable to have a limited weight part as described above.

Methylmagnesium iodide is a composition that improves the compatibility and stirrability when mixing the mixed compositions.

Here, 5 to 15 parts by weight of methylmagnesium iodide is mixed with respect to 100 parts by weight of the mortar mixture. When less than 5 parts by weight is mixed, the compatibility of the compositions is reduced, and the order ratio is lowered due to the bias of tetrahydrofuran, 15 When more than 1 part by weight is mixed, the compatibility of the mixed compositions is maximized and the miscibility is rather deteriorated, so it is preferable to have the limited parts by weight as described above.

Polyoxyethylene terephthalate provides a function such as durability or scratch resistance of the water-blocking layer by allowing the water-blocking layer by the mixed compositions to have a predetermined hardness.

Here, polyoxyethylene terephthalate is mixed with 5 to 10 parts by weight with respect to 100 parts by weight of the mortar mixture. When less than 5 parts by weight is mixed, the hardness of the water-ordering layer is too weak and the water-resistant layer is broken by impact, and more than 10 parts by weight is mixed When this occurs, the hardness of the water-blocking layer becomes too strong, and there is a problem in that a lifting phenomenon occurs from a cracking site and the adhesion strength is lowered. Therefore, it is preferable to have a limited weight part as described above.

Naphthalene-1,5-diisocyanate is a material that provides a function to allow the mixed composition to be smoothly sprayed or injected by an injection device or an injection device during waterproof construction.

Here, naphthalene-1,5-diisocyanate is mixed in 1 to 5 parts by weight based on 100 parts by weight of the mortar mixture. If the amount exceeds 5 parts by weight, the dispersibility of the compositions is rather increased, so that the fusing property of methylmagnesium iodide is lowered, and there is a problem that the adhesive strength is lowered and there is a problem of flowing down after injection or penetration. It is desirable to have wealth.

On the other hand, when explaining the construction method using the super fast road repair reinforcing agent according to an embodiment of the present invention as follows.

First, pretreatment such as cleaning and planarization work is performed on the surface of the base having a crack reinforcement part such as a concrete layer.

Thereafter, the super-velocity road repair reinforcing agent and water prepared as described above are mixed and stirred at a predetermined weight, and then applied or sprayed to the crack reinforcing part to form a crack repair reinforcing layer.

Thereafter, a known primer layer is installed on the surface of the base surface reinforced with the super-velocity road repair reinforcing agent, and an adhesive crack reinforcement material or a coating film layer made of a polyurethane material may be selectively applied.

Hereinafter, the effect of the super-velocity road repair reinforcing agent according to an embodiment of the present invention will be described with reference to specific examples.

A step of mixing crude steel cement, magnesia cement and ceramic powder in a volume ratio of 2:2:2, and 100 parts by weight of a mortar mixture in which the crude cement, magnesia cement and ceramic powder are mixed, 40 parts by weight of acrylamide, 30 parts by weight of tetrahydrofuran parts by weight, 1,4-dioxane 20 parts by weight, acrylonitrile 10 parts by weight, methacrylonitrile 5 parts by weight, methylmagnesium iodide 3 parts by weight, polyoxyethylene terephthalate 3 parts by weight, and naphthalene-1,5 - 5 parts by weight of diisocyanate is added and mixed to prepare a super-fast road repair reinforcing agent.

A step of mixing crude steel cement, magnesia cement and ceramic powder in a volume ratio of 2: 1:2, and 100 parts by weight of a mortar mixture in which the crude cement, magnesia cement and ceramic powder are mixed, 60 parts by weight of acrylamide, 50 parts by weight of tetrahydrofuran 1,4-dioxane 40 parts by weight, acrylonitrile 30 parts by weight, methacrylonitrile 20 parts by weight, methylmagnesium iodide 10 parts by weight, polyoxyethylene terephthalate 10 parts by weight, and naphthalene-1,5 -Diisocyanate weight parts are added and mixed to prepare a super-velocity road repair reinforcing agent.

A step of mixing crude steel cement, magnesia cement and ceramic powder in a volume ratio of 1:1:1, and 100 parts by weight of a mortar mixture in which the crude steel cement, magnesia cement and ceramic powder are mixed, 80 parts by weight of acrylamide, 70 parts by weight of tetrahydrofuran parts by weight, 1,4-dioxane 60 parts by weight, acrylonitrile 50 parts by weight, methacrylonitrile 40 parts by weight, methylmagnesium iodide 20 parts by weight, polyoxyethylene terephthalate 15 parts by weight, and naphthalene-1,5 - 5 parts by weight of diisocyanate is added and mixed to prepare a super-fast road repair reinforcing agent.

The above examples are for evaluating the waterproof performance and physical performance of the super fast road repair reinforcing agent of the present invention. Then, after being applied to the substrate having the crack reinforcement part, compressive strength, adhesion strength, static modulus of elasticity, Dry shrinkage, coefficient of thermal expansion, abrasion resistance, freeze-thaw resistance, and scaling resistance were tested, and these were tested for prototype products of 'Jungang Waterproofing Company', 'Hanyang Waterproof' and 'Samho Special' Compared with the product, the measurement results are shown in Table 1 below.

That is, the super-velocity road repair reinforcing agent of Example 2 according to an embodiment of the present invention, as shown in Table 1 above, compared to Examples 1 and 3 and other companies' products, compressive strength, adhesion strength, static elasticity It can be seen that the coefficient, drying shrinkage, thermal expansion coefficient, abrasion resistance, freeze-thaw resistance and scaling resistance are improved.

Therefore, according to the super fast road repair reinforcing agent of the present invention, its manufacturing method and the construction method using the same, it is understood that it is suitable for use as a super fast hardness road repair reinforcing agent by satisfying all the test criteria of structural characteristics, suitable characteristics, and durability characteristics. became

In other words, it has been found to maintain high ductility, which is superior to conventional concrete, as it has initial velocity, high strength, non-shrinkage, high durability, low tensile strain over time, and excellent elastic modulus and freeze-thaw resistance.

In addition, it is strong in impact and has excellent abrasion resistance, there is no damage and cracks caused by high loads, and it is easy to repair and reinforce, and the construction time and work process can be shortened, so it is very suitable as a reinforcing material for emergency repair work, concrete structure repair, and seismic structure repair. Do.

In addition, by mixing admixtures and fillers according to necessary conditions, highways, airport floors, bridges, tunnels, railways, ports, various water tanks, water treatment facilities, emergency construction structures such as water and sewage facilities, and reinforced concrete can be used as reinforcing materials.

Although the present invention described above has been described with respect to specific embodiments, various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the invention should not be defined by the described embodiments, but should be defined by the claims and equivalents of the claims.

Claims (3)

Crude cement, magnesia cement and ceramic powder are mixed in a volume ratio of 2:1:2 to 100 parts by weight of a mortar mixture, 50 to 70 parts by weight of acrylamide, 40 to 60 parts by weight of tetrahydrofuran, 30 to 1,4-dioxane 50 parts by weight, 20 to 40 parts by weight of acrylonitrile, 10 to 30 parts by weight of methacrylonitrile, 5 to 15 parts by weight of methylmagnesium iodide, 5 to 10 parts by weight of polyoxyethylene terephthalate, and naphthalene-1,5 - 1 to 5 parts by weight of diisocyanate is added and mixed with super-fast hardness road repair reinforcing agent. a step of mixing crude steel cement, magnesia cement and ceramic powder in a volume ratio of 2: 1 : 2;
To 100 parts by weight of the mortar mixture in which the crude steel cement, magnesia cement and ceramic powder are mixed, 50 to 70 parts by weight of acrylamide, 40 to 60 parts by weight of tetrahydrofuran, 30 to 50 parts by weight of 1,4-dioxane, acrylonitrile 20 to 40 parts by weight, 10 to 30 parts by weight of methacrylonitrile, 5 to 15 parts by weight of methylmagnesium iodide, 5 to 10 parts by weight of polyoxyethylene terephthalate, and 1 to 5 parts by weight of naphthalene-1,5-diisocyanate A method of manufacturing an ultra-high-speed road repair reinforcing agent, characterized in that it comprises the step of additionally adding and mixing. Including the super-velocity road repair reinforcing agent according to claim 1,
A pretreatment operation is performed on the surface of the substrate having the crack reinforcement portion;
The construction method using the super-velocity road repair reinforcing agent, characterized in that it comprises the step of generating a crack repair reinforcing layer by constructing the crack reinforcing part after mixing and agitating the super-velocity road repair reinforcing agent and water at a predetermined weight.