Mixture containing slow-release saline compound, composite phase-change material and asphalt and preparation method of mixture

A technology of composite phase change material and asphalt mixture, which is applied in the field of pavement materials, can solve the problems of high cost of materials, poor deicing and snow removal effect, and difficult construction, and achieves low cost of materials, reduction of snow removal times, and low construction difficulty. Effect

Active Publication Date: 2016-11-09
HEBEI INSTITUTE OF ARCHITECTURE AND CIVIL ENGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a slow-release salt compound phase change material asphalt mixture and its preparation method to solve the technical problems o

Method used

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  • Mixture containing slow-release saline compound, composite phase-change material and asphalt and preparation method of mixture
  • Mixture containing slow-release saline compound, composite phase-change material and asphalt and preparation method of mixture
  • Mixture containing slow-release saline compound, composite phase-change material and asphalt and preparation method of mixture

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1:

[0030] This slow-release salt compound phase change material asphalt mixture includes the following components by weight:

[0031] Slow-release salt: 2 parts, composite phase change material: 0.75 parts, pitch: 5 parts, auxiliary materials: 102 parts.

[0032] The fineness of the sustained-release salt is 200 mesh sieve.

[0033] In this embodiment, the chloride salt in the slow-release salt is anhydrous calcium chloride, the pumice powder is volcanic stone powder, and the mass ratio of anhydrous calcium chloride to volcanic stone powder is 4:1.

[0034] Of course, in other embodiments, the chloride salt may be potassium chloride or sodium chloride.

[0035] In this embodiment, the composite phase change material is composed of polyethylene glycol and organic bentonite, wherein the organic bentonite accounts for 5% of the weight of the polyethylene glycol.

[0036] The auxiliary materials include the following components by weight: 52 parts of coarse aggregate, 48 part...

Example Embodiment

[0041] Example 2:

[0042] This slow-release salt compound phase change material asphalt mixture includes the following components by weight:

[0043] Slow-release salt: 3 parts, composite phase change material: 0.9 parts, pitch: 6 parts, auxiliary materials: 104.2 parts.

[0044] The fineness of the sustained-release salt is 200 mesh sieve.

[0045] In other embodiments, the fineness of the sustained-release salt can also be any fineness of 150-300 mesh.

[0046] In this embodiment, the chloride salt in the slow-release salt is anhydrous calcium chloride, the pumice powder is volcanic stone powder, and the mass ratio of anhydrous calcium chloride to volcanic stone powder is 6:1.

[0047] In other embodiments, the chloride salt may be potassium chloride or sodium chloride.

[0048] In this embodiment, the composite phase change material is composed of polyethylene glycol and organic bentonite, wherein the organic bentonite accounts for 9% of the weight of the polyethylene glycol.

[0049] ...

Example Embodiment

[0055] Example 3:

[0056] In this embodiment, the slow-release salt compound: 2.5 parts, the composite phase change material: 0.8 parts, the pitch: 5.1 parts, and the auxiliary materials: 103.1 parts.

[0057] The fineness of the sustained-release salt is 200 mesh sieve.

[0058] In other embodiments, the fineness of the sustained-release salt can also be any fineness of 150-300 mesh.

[0059] In this embodiment, the auxiliary material includes the following components by weight: 52 parts of coarse aggregate, 49 parts of fine aggregate, and 2.1 parts of mineral powder.

[0060] In this embodiment, the raw materials used in the slow-release salt compound and the composite phase change material are as follows.

[0061] Chlorine salt, using anhydrous calcium chloride produced by Beijing Compuhuiwei Technology Co., Ltd.; the share is 65 shares.

[0062] The pumice powder is produced by Shangyi County Wanjing Pumice Technology Co., Ltd., the specification is volcanic stone powder (red), the f...

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Abstract

The invention discloses a mixture containing a slow-release saline compound, a composite phase-change material and asphalt and a preparation method of the mixture. The mixture containing the slow-release saline compound, the composite phase-change material and the asphalt is prepared from 2-3 parts of the slow-release saline compound, 0.75-0.9 part of the composite phase-change material, 5-6 parts of the asphalt and 100-110 parts of an auxiliary material. The preparation method of the mixture containing the slow-release saline compound, the composite phase-change material and the asphalt comprises the following steps that 1, the slow-release saline compound is prepared; 2, the composite phase-change material is prepared; 3, the asphalt mixture is prepared. According to the method, salt ingredients in the slow-release saline compound are gradually released out, chlorine salt cannot be released to the road surface at a time but gradually released to the road surface under the action of the road surface pressure and the pore water power due to the adsorption action of pelelith powder, the freezing point of the snow water on the road surface is lowered through the salt ingredients dissolved in snow water, an ice and snow melting effect is better under the condition that the road surface is iced in winter, and the problems of road ice and snow melting and driving safety in winter can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of pavement materials, in particular to a mixture containing salt compound phase change materials and a preparation method thereof. Background technique [0002] In winter, highways and ordinary roads are vulnerable to ice and snow, causing freeze-thaw damage to road surfaces and threatening people's lives and property. Every year, the ice and snow on the road will cause the braking distance of the car to become longer, and there are countless traffic accidents caused by unfavorable factors such as wheel slippage. [0003] Therefore, certain measures must be taken to reduce the ice and snow on the road surface and reduce the harm it brings to people. The current snow and ice removal technologies mainly include pavement external technology and pavement internal technology. The external technology of the road surface includes cleaning method and melting method; the cleaning method uses mechanical or manual c...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B24/42C04B22/12C04B103/60C04B111/20
CPCC04B26/26C04B40/0039C04B40/0042C04B2103/0071C04B2111/0075C04B2111/29C04B14/00C04B18/141C04B24/32C04B24/425C04B22/124C04B14/16
Inventor 麻建锁王一沛蔡焕琴白润山周苗苗冯拴
Owner HEBEI INSTITUTE OF ARCHITECTURE AND CIVIL ENGINEERING
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