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Emulsified asphalt composition spraying method and equipment

A technology of emulsified asphalt and composition, which is applied in the field of spraying method and spraying equipment of emulsified asphalt composition, which can solve the problems of low spraying efficiency, many human factors, and inability to spray emulsified asphalt composition, and achieve high spraying efficiency and convenient use Effect

Active Publication Date: 2014-01-22
NANJING ROAD KEEPER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When spraying the new emulsified asphalt composition, because it contains fine sand, the compression pump of ordinary emulsified asphalt spraying equipment cannot enter the sand, so the ordinary emulsified asphalt spraying equipment cannot spray the new emulsified asphalt composition
At present, the commonly used method is to spray directly with the spray pipe, which has many human factors in the spraying process, poor spraying effect, and low spraying efficiency

Method used

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  • Emulsified asphalt composition spraying method and equipment
  • Emulsified asphalt composition spraying method and equipment
  • Emulsified asphalt composition spraying method and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 The spraying method of the emulsified asphalt composition shown specifically comprises the following steps:

[0027] 101. Clean the surface of the asphalt surface layer, blow off the floating ash with a forest fire extinguisher, dry it in the sun, and keep the surface temperature between 20-40°C;

[0028] 102. Use spraying equipment for spraying, the spraying speed is 2-4 kilometers per hour, and the spraying amount is 0.6-1.2kg / m 2 .

[0029] The emulsified asphalt composition sprayed by this method can be well adhered to the asphalt pavement, so that the emulsified asphalt composition can penetrate into the cracks of the damaged asphalt film and "transfuse" the road surface, thereby restoring the asphalt adhesion on the road surface and filling the small gaps. Cracks and voids prevent water seepage from the road surface, while the sprayed fine aggregate provides good skid resistance. Spraying dosage is generally 0.6 ~ 1.2kg / m 2 , the upper limit s...

Embodiment 2

[0039] Based on the foregoing embodiments, the present invention has also made the following improvements:

[0040] In the spraying method of the emulsified asphalt composition,

[0041] It also includes performing the step of spraying with spraying equipment twice, and the interval between the two times is based on the fact that the wheels can run without sticking to the wheels.

[0042] In order to improve the effect of spraying, the road surface can be sprayed multiple times, preferably, two sprays are usually sufficient. The interval time is subject to the fact that the wheels can run without sticking to the wheels, and the approximate interval time is 30 minutes to 2 hours, which can improve the uniformity and water tightness of the sealing layer.

[0043] The asphalt material shall be an emulsified asphalt, CSS-1H grade, and the asphalt material shall not appear delamination and segregation after mixing, and the sampling of the asphalt material shall comply with AASHTO ...

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Abstract

The invention relates to the field of communication and transportation, in particular to an emulsified asphalt composition spraying method and equipment. The emulsified asphalt composition spraying equipment comprises a motorized transportation support, a container, a high pressure air compressor, a hydraulic oil tank, a hydraulic pump and a hydraulic motor, wherein the container, the high pressure air compressor, the hydraulic oil tank, the hydraulic pump and the hydraulic motor are arranged on the motorized transportation support, and an agitating vane is arranged in the container. The high pressure air compressor, the hydraulic oil tank, the hydraulic pump, the hydraulic motor and a filtering tank are all arranged on one side of the container, and the filtering tank is communicated with the container. The surface of the container is provided with a feed port and a discharge port, wherein a discharge tube is connected to the discharge port. The emulsified asphalt composition spraying equipment further comprises a pneumatic double diaphragm pump and a spraying rod, wherein the pneumatic double diaphragm pump and the spraying rod are both arranged on the other side of the container. The discharge tube, the pneumatic double diaphragm pump and the spraying rod are communicated in sequence. Emulsified asphalt compositions sprayed through the method can be well attached to an asphalt pavement, so that quite high skid resistance is provided. The spraying equipment is convenient to use and high in spraying efficiency, and is formed in one shot.

Description

technical field [0001] The invention relates to the field of transportation, in particular to a spraying method and spraying equipment of an emulsified asphalt composition. Background technique [0002] After several years of normal use of the asphalt pavement, the asphalt film loss, slight fatigue cracks, and loss of fine aggregates will appear on the pavement, and its water permeability will be greatly improved. The pavement water will enter the asphalt mixture through pores and cracks, further accelerating damage to the road surface. During this period, the pavement is basically in good condition, but if it is not treated in time, it will lead to pavement damage such as aggregate shedding, mesh cracks, cracks, and potholes. [0003] Fog seal is a commonly used preventive maintenance technology for asphalt pavement. It is to spray emulsified asphalt dilution or special road protection agent on the existing asphalt pavement. Spraying the mist sealer can seal the tiny crac...

Claims

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Application Information

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IPC IPC(8): E01C7/35E01C19/17
Inventor 覃勉
Owner NANJING ROAD KEEPER TECH
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