Phase change temperature-adjusting asphalt compound material for traffic pavement and preparation method thereof

A technology of composite materials and composite phase-change materials, which is applied in the field of phase-change temperature-adjusting asphalt composite materials for traffic pavements and its preparation, can solve the problems of poor high-temperature stability of phase-change pavement materials, and achieve improved cohesion and improved Adhesion ability, effect of improving ceramic strength

Active Publication Date: 2017-03-22
王丽丽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are related documents and patents on the application of phase change materials to asphalt traffic pavement materials, such as Chinese patent CN200810048628.3 "Preparation method of phase change asphalt pavement material", which proposes a phase change material, coagulant, support material, coupler The phase change asphalt pavement material is prepared by coupling agent

Method used

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  • Phase change temperature-adjusting asphalt compound material for traffic pavement and preparation method thereof
  • Phase change temperature-adjusting asphalt compound material for traffic pavement and preparation method thereof

Examples

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Embodiment 1

[0029] A phase-change temperature-regulating asphalt composite material for traffic pavement, wherein it is characterized in that: it is made of aggregate, base asphalt, composite phase-change material, asphalt modified material, stabilizer and antioxidant, wherein the aggregate accounts for 70 parts, 7 parts of basic asphalt, 8 parts of composite phase change material, 5 parts of asphalt modified material, 0.5 part of stabilizer, and 0.5 part of antioxidant; the aggregate is composed of coarse The asphalt modified material is composed of polyethylene or polypropylene waste, waste tire powder and medium powder with a weight ratio of 15:3:2. The medium powder is made of slurry waste diatom mud after drying After drying and pulverizing, mix it with the sodium hydroxide solid of 2 times the weight of the waste diatomaceous earth in slurry form and mix it at 40 o It is made by heating under C; the composite phase-change material is composed of metal powder and ceramic-based phase-...

Embodiment 2

[0039] A phase-change temperature-regulating asphalt composite material for traffic pavement, which is made of aggregate, base asphalt, composite phase-change material, asphalt modified material, stabilizer and antioxidant. According to the weight ratio, the aggregate accounts for 75 parts, and the base asphalt 10 parts, composite phase change material 15 parts, asphalt modified material 8 parts, stabilizer 1 part, antioxidant 1 part; the aggregate is composed of coarse material and fine material with a weight ratio of 2.5:1 , the asphalt modified material is composed of polyethylene or polypropylene waste, waste tire powder and medium powder with a weight ratio of 15:5:2. The medium powder is dried and pulverized with pulpy waste diatom mud Slurry waste diatomaceous earth 2 times the weight of sodium hydroxide solid mixed and mixed at 45 o It is made by heating under C; the composite phase change material is composed of metal powder and ceramic base phase change material with...

Embodiment 3

[0050]A phase-change temperature-regulating asphalt composite material for traffic pavement, which is made of aggregate, base asphalt, composite phase-change material, asphalt modified material, stabilizer and antioxidant, wherein the aggregate accounts for 73 parts by weight, and the base Asphalt accounts for 8.5 parts, composite phase change material accounts for 11 parts, asphalt modified material accounts for 7 parts, stabilizer accounts for 0.75 parts, and antioxidant accounts for 0.75 parts; the aggregate is composed of coarse material and fine material with a weight ratio of 2.3:1 Composition, the asphalt modified material is composed of polyethylene or polypropylene waste, waste tire powder and medium powder with a weight ratio of 15:4:2. The medium powder is dried and crushed slurry-like waste diatom mud Mix the sodium hydroxide solid with 2 times the weight of the slurry waste diatomaceous earth and mix it at 50 o It is made by heating under C; the composite phase ch...

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Abstract

The invention relates to a phase change temperature-adjusting asphalt compound material for a traffic pavement and a preparation method thereof. The compound material is prepared from aggregate, base asphalt, a compound phase change material, an asphalt modifying material, a stabilizer and an antioxidant. The asphalt modifying material is composed of a polyethylene or polypropylene waste material, waste tyre powder and medium powder. The compound phase change material is composed of metal powder and a ceramic-based phase change material. The metal powder is formed by mixing nickel powder and copper powder. The ceramic-based phase change material is prepared from a supporting material and capric acid. The supporting material is formed by sintering kaolin, montmorillonite clay, zirconite, cordierite fine powder, magnesium oxide micropowder, modified nano titanium dioxide, silicon carbide fine powder, sodium hydrogen carbonate and calcium carbonate. The ceramic-based phase change material provided by the invention can be coated with an EVA resin on the surface, so that the leakage problem of the phase change material in a solid-liquid transformation process is further reduced, the stability of the ceramic-based phase change material is improved, and the phase change temperature-adjusting stability of the asphalt compound material is further improved.

Description

technical field [0001] The invention relates to the field of traffic pavement materials, in particular to a phase-change temperature-regulating asphalt composite material for traffic pavement and a preparation method thereof. [0002] technical background [0003] The transportation industry plays an important role in the rapid development of my country's economy. Asphalt pavement is widely used in the construction of highways, urban roads, airports and other transportation facilities due to its high flatness, good comfort, and low noise. According to statistics Asphalt pavement accounts for about 50% of the existing roads in our country, and more than 90% of the highways under construction, reconstruction or large and medium repairs use asphalt pavement. Asphalt is a typical viscoelastic material, which determines that the performance of asphalt pavement is easily affected by load and temperature. At the same time, asphalt is a kind of heat-absorbing material, and the absorp...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B33/13C09K5/06
CPCC04B26/26C04B33/13C04B2111/0075C04B2235/3206C04B2235/3208C04B2235/3232C04B2235/3248C04B2235/3481C04B2235/3826C04B2235/442C09K5/06C04B14/02C04B18/20C04B18/22C04B18/0427C04B14/34C04B18/023C04B14/305
Inventor 王丽丽李强杨彦奇郝会霞
Owner 王丽丽
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