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Noctilucent cold-laid permeable asphalt and preparation method thereof

A technology of permeable asphalt and cold paving, applied in the field of building materials, can solve the problem that matrix asphalt is difficult to solve the problem of pavement fatigue life, and achieve the effects of improving variability and aesthetics, low odor concentration, and strengthening mechanical properties and stability.

Pending Publication Date: 2021-06-18
广东四通建材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, with the rapid development of my country's car ownership, and the gradual increase of long-span bridges, increased traffic volume, increased axle load, and traffic channelization, the phenomenon of overloading on asphalt roads is becoming more and more serious. Asphalt bridge decks and road surfaces put forward higher requirements, but matrix asphalt is difficult to solve the problem of long-term fatigue life of pavement

Method used

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  • Noctilucent cold-laid permeable asphalt and preparation method thereof

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preparation example Construction

[0030] A preparation method of luminous cold-paved permeable asphalt, which is used to prepare the luminous cold-paved permeable asphalt, comprising the following steps:

[0031] 1) Material configuration: The configuration components are matrix asphalt: waste tire rubber powder: luminous material: reinforcing agent: toughening fiber: waste oil: color pigment = 45~60: 10~20: 8~15: 5~10: 3-8: 1-5: 20-30.

[0032] 2) Improve the softening point of the base asphalt: the base asphalt enters the flash tower for multiple flashes, including: one flash: the base asphalt enters the first flash tower at 250-300°C and vacuum -45-55kpa Flash evaporation removes 20-30% of the heavy components; secondary flash evaporation: the bitumen obtained from the first flash evaporation enters the second flash evaporation, and removes 5-15% of the light components. After entering the reaction kettle, the vacuum degree is controlled at -45~55kpa during air oxidation, and the air flow rate is 20~30Nm3...

Embodiment 1

[0035] Example 1: A luminous cold-paved permeable asphalt and its preparation method

[0036] Luminous cold-paved permeable asphalt includes the following components: 45g base asphalt, 11.5g waste tire rubber powder, 8g luminescent material, 5g nano-graphene, 3g Delanit fiber, 1g waste oil, 20g color pigment.

[0037] The preparation method of luminous cold-paved permeable asphalt comprises the following steps:

[0038] 1) Improve the softening point of the base asphalt: put 45g of the base asphalt into the flash tower for multiple flash evaporation, including: the base asphalt enters the flash tower once, and remove 20-30% by flash evaporation under the conditions of 250°C and vacuum degree of -45kpa The heavy components are then entered into secondary flash evaporation to remove 5-15% of the light components at 250°C and a vacuum of -45kpa. After entering the reaction kettle, the vacuum degree is controlled at -45kpa and the air flow rate is 20Nm3 / h during air oxidation to ...

Embodiment 2

[0041] Example 2: A luminous cold-paved permeable asphalt and its preparation method

[0042]Luminous cold-paved permeable asphalt includes the following components: 47g base asphalt, 10g waste tire rubber powder, 8.7g luminescent material, 6g nano-graphene, 5g basalt fiber, 1.7g waste oil, and 21g color pigment.

[0043] The preparation method of luminous cold-paved permeable asphalt comprises the following steps:

[0044] 1) Improve the softening point of the matrix asphalt: put 47g of the matrix asphalt into the flash tower for multiple flash evaporation, including: the matrix asphalt enters the flash tower once, and remove 20-30% by flash evaporation under the conditions of 255°C and vacuum degree of -46kpa The heavy components are then entered into secondary flash evaporation to remove 5-15% of the light components at 250°C and a vacuum of -45kpa. After entering the reaction kettle, the vacuum degree is controlled at -46kpa and the air flow rate is 22Nm3 / h during air oxi...

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Abstract

The invention provides noctilucent cold-laid water-permeable asphalt and a preparation method thereof. The noctilucent cold-laid water-permeable asphalt is prepared from the following components in parts by weight: 45-60 parts of matrix asphalt, 10-20 parts of waste tire rubber powder, 8-15 parts of luminescent material, 5-10 parts of reinforcing agent, 3-8 parts of toughening fiber, 1-5 parts of illegal cooking oil and 20-30 parts of color pigment. The preparation method comprises the following steps: increasing the softening point of matrix asphalt through flash evaporation and air oxidation; uniformly mixing waste tire rubber powder, nano graphene and toughening fibers to obtain a first mixture; adjusting the temperature of the high-softening-point asphalt to 200 + / -5 DEG C; then adding a luminescent material, a color pigment and illegal cooking oil; uniformly mixing to obtain a second mixture; adjusting the temperature of the second mixed material to 185 + / -5 DEG C; uniformly mixing the first mixed material and the second mixed material; and then cooling to 140 + / -5 DEG C to obtain the noctilucent cold-laid permeable asphalt. Through cooperation of the components and the method, the noctilucent cold-laid permeable asphalt which is excellent in high and low temperature performance, good in stability, excellent in fatigue resistance, environment-friendly and noctilucent is obtained.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a luminous cold-paved permeable asphalt and a preparation method thereof. Background technique [0002] The current domestic road pavement is usually asphalt pavement or cement pavement, and asphalt pavement accounts for more than 85%. The traditional road surface has a single color tone, and driving for a long time can easily cause visual fatigue, especially at night, when the light is dim, which is more likely to cause driving hazards. With the development of the economy and the improvement of people's living standards, colored asphalt pavement has gradually entered people's sight. It is used in urban road construction, special warning road sections, colored sidewalks, landscape roads, stadiums, etc., to beautify the city and organize traffic. to good effect. [0003] In addition, with the rapid development of my country's car ownership, and the gradual increase of...

Claims

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Application Information

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IPC IPC(8): C04B26/26
CPCC04B26/26C04B2111/0075C04B2111/807C04B18/22C04B18/18C04B16/06C04B14/024C04B2103/54C04B2103/0068C04B14/4643C04B14/42
Inventor 罗国良唐秋生王先莉
Owner 广东四通建材股份有限公司
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