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Special tack coat for microwave heat control type ultra-thin pavement and construction method of special tack coat for microwave heat control type ultra-thin pavement

A sticky oil, extremely thin technology, applied in the direction of roads, roads, and on-site coagulation pavement, etc., to slow down the heat dissipation rate, improve the bonding performance, and balance the viscoelasticity.

Pending Publication Date: 2022-04-05
南京兴佑交通科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the heating of microwave absorbing materials can effectively compensate for the problem of excessive cooling during thin-layer construction.

Method used

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  • Special tack coat for microwave heat control type ultra-thin pavement and construction method of special tack coat for microwave heat control type ultra-thin pavement
  • Special tack coat for microwave heat control type ultra-thin pavement and construction method of special tack coat for microwave heat control type ultra-thin pavement
  • Special tack coat for microwave heat control type ultra-thin pavement and construction method of special tack coat for microwave heat control type ultra-thin pavement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The component raw materials of the emulsified modified asphalt used in Example 1 are shown in Table 1 below.

[0031] Table 1 Raw material components of emulsified modified asphalt

[0032] serial number Raw material components Content / part 1 70# matrix asphalt 40 2 coal tar pitch 6 3 barite powder 1 4 Old shoe sole rubber particles 3 5 Modified Petroleum Resin 1 6 Linear Low Density Polyethylene Powder 1 7 Cationic Asphalt Emulsifier 0.3 8 70℃ hot water 49.7

[0033] The preparation method of the emulsified modified asphalt of this embodiment comprises the steps:

[0034] (1) Preparation of modified asphalt: heat 40 parts of 70# base asphalt to 165 ° C, stir and keep warm properly, add 6 parts of coal tar pitch, 1 part of barite powder, 3 parts of old shoe sole rubber particles, and 1 part of modified Petroleum resin, 1 part of linear low-density polyethylene powder, mixed for 1.5 hours at 165°C ...

Embodiment 2

[0051] The component raw materials of the emulsified modified asphalt used in Example 2 are shown in Table 3 below.

[0052] Table 3 Raw material components of emulsified modified asphalt

[0053] serial number Raw material components Content / part 1 70# matrix asphalt 40 2 rock asphalt 6 3 Modified Petroleum Resin 3 4 Linear Low Density Polyethylene Powder 1 5 Cationic Asphalt Emulsifier 0.3 6 70℃ hot water 49.7

[0054] The preparation method of the emulsified modified asphalt of this embodiment comprises the steps:

[0055] (1) Preparation of modified asphalt: Heat 40 parts of 70# base asphalt to 165 ° C, stir and keep warm properly, add 6 parts of rock asphalt, 3 parts of modified petroleum resin, and 1 part of linear low density polyethylene powder, Mix at 165°C for 1.5 hours at a stirring speed of 500r / min, keep stirring, and set aside;

[0056] (2) Preparation of soap solution: Weigh 0.3 parts of cationic aspha...

Embodiment 3

[0072] The component raw materials of the emulsified modified asphalt used in Example 3 are shown in Table 5 below.

[0073] Table 5 Raw material components of emulsified modified asphalt

[0074] serial number Raw material components Content / part 1 70# matrix asphalt 40 2 coal tar pitch 8 3 Organic bentonite 1 4 Ethylene-vinyl acetate copolymer 2 5 Linear Low Density Polyethylene Powder 1 6 Cationic Asphalt Emulsifier 0.3 7 70℃ hot water 49.7

[0075] The preparation method of the emulsified modified asphalt of this embodiment comprises the steps:

[0076] (1) Preparation of modified asphalt: Heat 40 parts of 70# base asphalt to 165 ° C, stir and keep warm properly, add 8 parts of coal tar pitch, 1 part of organic bentonite, 2 parts of ethylene-vinyl acetate copolymer, 1 part of thread Type low-density polyethylene powder, mixed at 165°C for 1.5h at a stirring speed of 500r / min, kept stirring, and set aside; ...

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Abstract

The invention discloses special tack coat oil for a microwave heat control type ultra-thin pavement and a construction method, the special tack coat oil comprises emulsified modified asphalt and a functional component containing a microwave absorbing material, the emulsified modified asphalt comprises matrix asphalt, a high modulus agent, a tackifier, linear low density polyethylene powder and a cationic asphalt emulsifier, the functional component comprises a microwave absorbing material obtained by coating modified wave absorbing particles with a polymer and a composite synergist. During construction, the emulsified modified asphalt and the functional components are added into a storage tank to implement spreading operation, and rolling compaction is performed under a microwave emitter until completion. According to the tack coat oil, demulsification is more thorough, meanwhile, the functional components can form a cross-linked network with a certain density in the tack coat oil, more balanced viscoelasticity is provided, it is ensured that an extremely thin road surface and an original road surface form a more compact overall structure, the stress mode under the action of complex traffic loads is improved, and subsequent diseases are effectively avoided; and the problem of too fast cooling in the thin layer construction process can be effectively solved through heating of the microwave absorbing material.

Description

technical field [0001] The invention belongs to the technical field of ultra-thin pavement, and in particular relates to a microwave-controlled heat-controlling type adhesive layer oil and a construction method for ultra-thin pavement. Background technique [0002] In recent decades, ruts, potholes, and collapses have occurred frequently in my country's road traffic network, and the demand for maintenance technical solutions has become increasingly urgent. According to statistics, more than 100,000 kilometers of asphalt pavement in my country needs to be repaired and maintained every year, costing more than 400 billion yuan, and consuming about 200 million tons of asphalt mixture, which brings a serious burden to the country's finances and environmental protection. In order to change this status quo as soon as possible, researchers have developed a series of new asphalt road repair and maintenance technologies. [0003] Ultra-thin asphalt pavement pavement technology, speci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/35C08L95/00C08L23/08C08K3/30
Inventor 蔡广楠魏唐中李佩宁夏新杰鲁万华杜信剑
Owner 南京兴佑交通科技有限公司
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