KR200281719Y1 - Mat for reinforcing asphalt road - Google Patents

Abstract

The present invention relates to an asphalt road reinforcing mat, and more specifically, in the asphalt or concrete pavement, the pavement works by laying the mat type on the existing paving surface or the new paving surface at the time of repairing the pavement. It relates to the asphalt road reinforcement mat to prevent plastic deformation and crack generation of the road. The present invention adheres to a metal reinforcement member having a predetermined width and mesh shape, upper and lower asphalt layers formed on the upper and lower portions of the reinforcing member, sand attached to the upper surface of the upper asphalt layer, and the bottom surface of the lower asphalt layer. In the asphalt road reinforcement mat made of a release paper, the material of the reinforcing member is made of glass fiber as a sheet or lattice-shaped asphalt road reinforcement mat to reduce the plastic deformation and cracking of the pavement than conventional methods 30 It is possible to prevent more than%, which is a characteristic.

Description

Mat for reinforcing asphalt road}

The present invention relates to an asphalt road reinforcing mat, and more specifically, in the asphalt or concrete pavement, the pavement works by laying the mat type on the existing paving surface or the new paving surface at the time of repairing the pavement. It relates to an asphalt road reinforcing mat to prevent plastic deformation and cracking of the road.

Pavement failure patterns include plastic deformation, fatigue cracks, reflection cracks, and temperature cracks due to repeated traffic loads, and cracks occur before reaching the design life, which is a major obstacle to road maintenance. The above cracks are generally covered with new asphalt on the existing asphalt road because of road damage caused by existing cracks (cracks) generated in the existing asphalt road. In this case, as shown in FIG. Due to the existing cracks, new asphalt cracks are displaced and progress faster than the initial cracking rate.

As a countermeasure for improving road durability by suppressing the progress of road cracks, there are methods for improving and optimizing the performance of asphalt and aggregates, and reinforcing pavement by laying and overlaying reinforcements such as fabrics and nonwoven fabrics on cracked roads. In particular, a method of improving the durability of the road using a woven fabric or a nonwoven fabric includes a nonwoven fabric having a predetermined width, upper and lower asphalt layers formed on the upper and lower surfaces of the nonwoven fabric, sand attached to the upper surface of the upper asphalt layer, and the lower asphalt. It is a release paper attached to the bottom of the layer.

The asphalt road mat for the conventional road construction simply exhibits only waterproof performance, so that when the asphalt mixture is paved on the top, it does not exert any influence on strength. Thus, as proposed in the Republic of Korea Utility Model Registration No. 227589 registered and registered in order to solve the above problems, by using a reinforcing member formed in the shape of a mesh of stainless steel wire which has a predetermined thickness as a substitute for the nonwoven fabric and can exhibit excellent tensile strength. There is also a mat for asphalt road reinforcement of the structure by improving the rigidity of the mat.

However, roadwork asphalt mat using the reinforcing member formed in the form of a wire mesh also has been shown to have no great effect due to the weakening of fatigue crack, reflection crack suppression and plastic deformation after a long time.

The present invention has been devised in view of the above-mentioned problems, and its purpose is to install it on top of existing paving or newly paving surface during renovation of pavement, so that plastic deformation and cracking of pavement can be more than 30%. It is to provide an asphalt road reinforcement mat that can be prevented.

1 is a cutaway perspective view of the road construction using the reinforcement mat applied technology of the present invention

2 is a cross-sectional view of the reinforcing mat according to the present invention

3 is an exemplary view showing a state in which a crack of an existing road is transmitted to a newly paved road.

※ Explanation of code for main part of drawing ※

1: road reinforcement mat

10: finishing member

20: upper layer rubberized asphalt

30: reinforcing member

40: lower layer rubberized asphalt

50: release paper

The object of the present invention is to provide a reinforcing member of a metal material having a predetermined width and mesh shape, upper and lower asphalt layers formed on the upper and lower portions of the reinforcing member, sand attached to the upper surface of the upper asphalt layer, and the lower asphalt layer. Asphalt road reinforcement mat made of a release paper attached to the bottom surface, the material of the reinforcing member is achieved by the asphalt road reinforcement mat, characterized in that the sheet made of glass fibers as a sheet.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing a road construction using a reinforcing mat applied with the technique of the present invention, and FIG. 2 is a cross-sectional view of the reinforcing mat according to the present invention, and accordingly, the asphalt road reinforcing mat 1 according to the present invention. Is the upper surface rubberized asphalt 20 is bonded to the lower surface of the finishing member 10 made of non-woven fabric or PP fabric treated to prevent slipping.

On the other hand, the lower rubberized asphalt 20 has a structure that is attached to the reinforcing member 30, the lower rubberized asphalt 40 and the release paper 50 in the order.

The rubberized asphalt 20, 40 is a mixture made of a mixture of ordinary asphalt and rubber, the main purpose of the shock absorbing and strengthening the bonding force with the reinforcing member (30).

On the other hand, the reinforcing member 30 is preferably used to serve the glass fiber in the form of sheet or woven. The reason is to prevent the detachment of the member and the member due to the slim by the moving load acting in the lateral direction.

Asphalt road reinforcing mat of the present invention having the structure as described above by laying on the crack road so as to obtain the same effect as maximizing the spring effect by overlapping the leaf spring multiple times plastic deformation and crack of the pavement It is possible to prevent the occurrence more than 30% than conventional methods.

The above effect was carried out the wheel tracking experiment. The nominal maximum dimension of surface and base aggregate of asphalt pavement used was 19m / m, 25m / m combination with crushed sand and natural sand stone powder, and asphalt used general product produced in Korea.

Experiment 1) Inhibition of plastic deformation

Exam conditions

① Load: 100㎏f

② Loading speed: 40 times / minute

③ Test temperature: 60 ℃ ± 0.5

④ Specimen size: 300 × 300 × 50m / m

Test result

sample Wheel tracking number Crack length (m / m) This devised mat 1,000 4m / m Conventional mat 1,000 7m / m

Experiment 2) Reflective crack prevention effect

Exam conditions

① Load: 100㎏f

② Loading speed: 40 times / minute

③ Test temperature: 60 ℃ ± 0.5

④ Specimen size: 300 × 300 × 50m / m

Test result

sample Reinforcement Examination Crack length (m / m) Conventional No reinforcement 1,000,000 90-95 Conventional Reinforcement 1,000,000 15 This issue Reinforcement 1,000,000 1.5

As a result of the anti-reflective cracking effect experiment on the pavement, it shows excellent effect on the absorption and Busan of dynamics, so the reflecting crack on the pavement caused by the dynamic load of traffic is about 1 / 60th of the unreinforced road. It was found to occur about 1/10 less than.

In the present invention having such a structure, as an embodiment of the reinforcing member 30, one side or both sides of the reinforcing member 30 may be selected and used by selecting any one selected from PP woven fabric, PET woven fabric and nonwoven fabric. have.

The reason for installing a separate member on one side or both sides of the reinforcing member 30 as described above is to enhance the strength and to prevent the cracking of the new asphalt due to the existing crack.

The mat of the present invention, which is constructed and used as described above, is made of glass fiber material between upper and lower asphalt, and installs a reinforcing member provided in the form of sheet or lattice to prevent plastic deformation and crack generation on the pavement more than 30%. There is an effect that can be prevented.

Claims (2)

Reinforcement member of a metal material having a predetermined width and mesh shape, upper and lower asphalt layers formed on the upper and lower portions of the reinforcement member, sand attached to the upper surface of the upper asphalt layer, and release paper attached to the bottom surface of the lower asphalt layer. In the asphalt road reinforcement mat made of, Asphalt road reinforcement mat, characterized in that the material of the reinforcing member is a glass fiber material made of a sheet form or lattice form. According to claim 1, Asphalt road reinforcement mat characterized in that attached to one or both sides of the reinforcing member is selected and selected from any one selected from PP woven fabric, PET woven fabric and non-woven fabric.