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Asphalt pavement heat reflection slurry seal material and preparation method thereof

A slurry seal, asphalt pavement technology, applied in the direction of roads, roads, coagulation pavement paved on site, etc. layer peeling and other problems, to achieve the effect of alleviating road rutting and other diseases, light weight and reducing road temperature

Pending Publication Date: 2021-09-24
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, people at home and abroad mainly prepare heat-reflective coatings and lay them on asphalt pavements to reduce the temperature of the pavement. Although heat-reflective coatings can effectively reduce the high temperature problem of asphalt pavements, they require more additives and are harmful to the weather during construction. The conditions and original road surface requirements are high, and with the passage of time and under the action of driving load, the adhesion between the coating and the asphalt interface decreases, and the coating is prone to peeling off

Method used

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  • Asphalt pavement heat reflection slurry seal material and preparation method thereof
  • Asphalt pavement heat reflection slurry seal material and preparation method thereof
  • Asphalt pavement heat reflection slurry seal material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0034] Implementation plan (indoor implementation effect test)

[0035] Test Methods

[0036] Refer to the Japanese indoor temperature test method, support high-power lamps with tripod to simulate sunlight, test fittings are placed under the source, and the surrounding and bottom heat insulating materials are separated by the air test to conduct heat to the outside. .

[0037] In order to ensure the thickness of the slurry sealing layer of 5 mm, a frame of 300 mm × 300 mm is made by a long wooden strip having a cross section of 5 mm × 5 mm, and the slurry seal is placed on the rut pad.

[0038] The temperature value is read and recorded and recorded with a non-contact infrared temperature gun.

[0039] As shown in Table 2, the 6 groups were measured once every half hour in 4 hours, and temperature data was obtained.

[0040] Table 2

[0041]

[0042] The indoor cooling layer of the thermal reflective material in the present invention is remarkable, and the ordinary slurry sealin...

Embodiment example 2

[0044] Implementation case two (outdoor asphalt pavement implementation effect test)

[0045] Test Methods:

[0046] In order to obtain more accurate and effective experimental data, you need to select a day with a higher temperature and less temperature to observe and record data.

[0047] The mating ratio used in this experiment is used in the actual road, and a slurry sealing layer sample having a thickness of 5 mm is equally paveled.

[0048] The test time is 10:00 to 14:00, and the data is collected every 1 hour.

[0049] The outdoor cooling effect of the thermal reflective material of the present invention is remarkable. The temperature change of the test piece on the 4-hour pavement, as shown in Table 3, can be found that the temperature of the ordinary slurry sealing layer is up to 56.8 ° C, which is approximately 2 ° C higher than the original asphalt pavement. At a temperature of 35 ° C, the temperature reduction effect of the tester containing the hollow glass beads is ...

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Abstract

The invention discloses an asphalt pavement heat reflection slurry seal material and a preparation method thereof. In order to reduce the temperature of the asphalt pavement, hollow glass beads are adopted, and the asphalt pavement heat reflection slurry seal is prepared by combining an asphalt pavement slurry seal technology. According to the slurry seal material, the pavement performance of the material is guaranteed, the pre-curing effect of the slurry seal is exerted, meanwhile, the influence of temperature rise of an asphalt pavement caused by sunlight irradiation is relieved, and the slurry seal material is reasonable in manufacturing cost, convenient to construct, good in using effect and wide in application range.

Description

Technical field [0001] The present invention relates to an asphalt pavement heat reflective slurry sealing layer material and a preparation method thereof, mainly used in the field of road engineering, and more particularly to thermal reflective slurry sealing layer materials and preparation methods thereof. Background technique [0002] In recent years, my country's road construction has developed rapidly, and has become a large country in the world, and the requirements for road construction are also increasing. Asphalt pavement has better flatness, the car is smooth and comfortable; there is a certain plasticity and viscoelasticity, which can withstand enough vehicle load, and has good relaxation performance; there is a good attachment between asphalt pavement and car tires. Focus; with high damping and noise reduction; renewable utilization. However, asphalt is a heat absorbing material. Due to heat absorption due to heat absorption due to heat absorption, the asphalt pavemen...

Claims

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Application Information

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IPC IPC(8): E01C7/35C04B28/00
CPCE01C7/35E01C7/358C04B28/00C04B2111/0075C04B24/36C04B14/14C04B14/22
Inventor 张金喜董子震禚永昌
Owner BEIJING UNIV OF TECH
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