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Rapid compounding repair method of pavement

A composite repair and rapid technology, applied in the field of road repair, can solve the problems of easy aging and shedding, large differences in elastic modulus and thermal expansion coefficient, and achieve the effect of good fluidity, high strength and bonding strength, and not easy to fall off.

Active Publication Date: 2017-03-22
曹立强 +7
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Another object of the present invention is to provide a polymer grout, which overcomes the problem that the existing high-cost synthetic resin grout has a large difference in elastic modulus and thermal expansion coefficient from ordinary concrete, and is easy to age and fall off after repairing.

Method used

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  • Rapid compounding repair method of pavement

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Effect test

Embodiment 1

[0025] A rapid composite repair method for pavement, comprising:

[0026] 1) Crushing the cracks or pits on the concrete pavement to form a pit 1 with a four-sided platform structure with a large upper part and a smaller one at the bottom, so that the previous cracks or pits are in the cracked pit 1 after treatment, and the size of the pit 1 is larger than Cracks or potholes will do. Preferably, when the treated road surface is a pit, the volume of the seam pit 1 is twice the volume of the pit; when the treated road surface is a crack, the side length of the upper surface of the seam pit 1 is 1.5 times the length of the longer side of the crack, The depth of pit 1 is 1.5 times the depth of the crack. One of the opposite sides of the bottom surface of the seam pit 1 is the same as the driving direction, and the angle between any side of the seam pit 1 and the bottom surface of the seam pit 1 is 110°, and the two sides of the seam pit 1 parallel to the driving direction are com...

Embodiment 2

[0033] A rapid composite repair method for pavement, comprising:

[0034] 1) Break the cracks on the concrete pavement to form a seam pit with a large and small four-sided platform structure. One of the opposite sides of the bottom of the seam pit is the same as the driving direction, and the side of any seam pit is the same as the bottom surface of the seam pit. The included angles are all 130°, and the two sides of the seam pit parallel to the driving direction are symmetrically dug from bottom to top with four sequentially connected grooves. The grooves have a regular triangular prism structure, and the grooves are triangular. The surface is perpendicular to the direction of travel. After completing the above operations, it is necessary to keep the seam pit clean and dry, so that the grouting material can be fully combined with the seam pit to be repaired to avoid the problem of falling off.

[0035]2) On the other two sides of the seam pit, there are at least two inserts ...

Embodiment 3

[0039] A grouting material, in parts by weight, the preparation method of which is as follows: 100 parts of cement, 19 parts of diatomite, 160 parts of the first rock sand, 0.4 parts of molasses retarder, 1.5 parts of water reducer, lithium chloride (Increased strength agent) 9 parts and 3 parts of coagulant accelerator are mixed evenly, according to the water-cement ratio 0.25:1, add water and stir in a forced mixer for 2 minutes. Wherein, the first rock sand is composed of arsenic sandstone, coal gangue, pyroclastic rock, light silicomanganese slag, bentonite, closed-cell perlite and pearl sand according to the quality of 25:19:20:10:6:6:7 Coordinated. The water reducer is made of melamine, zinc borate, propylene glycol alginate, polysilicic iron sulfate and corn starch in a mass ratio of 20:5:4:2:3, and the coagulant is a particle size less than 3um Calcium hydroxide particles. In this embodiment, the following raw materials can be within the set particle size range. The ...

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Abstract

The invention discloses a rapid compounding repair method of pavement. The method includes: conducting crushing treatment on concrete pavement cracks or pit slots to form a quadrangular frustum structure seam pit with big top and small bottom, wherein one group of opposite sides at the seam pit bottom are consistent with the travelling direction, and the included angles between any side of the seam pit and the seam pit bottom are all 110DEG-130DEG, at least 3 successively connected grooves are digged on two sides of the beam pit parallel to the travelling direction from the bottom up, the grooves are in a regular triangular prism structure, and the triangular sides of the grooves are perpendicular to the travelling direction; mixing a grouting material, then injecting the grouting material into the seam pit and performing inserting pounding, wherein the grouting material includes the following raw materials: cement, purified diatomite, first rock sand, a molasses retarder, a water reducer, lithium chloride and a coagulant. The method provided by the invention has short construction time, can significantly improve the bonding strength between to-be-repaired concrete pavement and a newly poured material layer, so that the repaired concrete pavement can become a whole, and has the advantages of good deformation ability and difficult shedding.

Description

technical field [0001] The invention relates to the technical field of road repair. More specifically, the invention relates to a rapid composite repair method for pavement. Background technique [0002] Road maintenance is one of the important issues facing the field of road engineering today. According to statistics, in recent years, my country has spent more than 30 billion yuan on road maintenance and repairs every year. With the gradual improvement of my country's road traffic network, road maintenance has received more and more attention. However, under the current situation, the service life of cement concrete pavement often does not reach the expected value. Many physical projects have only been open to traffic for a few years. Due to the long-term rolling of vehicles, problems such as cracks, voids, and broken plates appear. When the existing concrete highway pavement is repaired, the newly poured concrete is usually directly poured into the seam pit, the surface ...

Claims

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Application Information

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IPC IPC(8): E01C23/09C04B28/00
CPCC04B28/00C04B2201/50E01C23/096C04B14/08C04B18/12C04B14/14C04B18/144C04B14/104C04B14/18C04B14/24C04B14/02C04B24/10C04B24/129C04B22/08C04B24/045C04B22/142C04B24/383C04B22/124C04B22/064
Inventor 曹立强闫力伟楚建鹏张建武李志方陈永祥陈继奎高旋
Owner 曹立强
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