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Activated waste rubber powder noise reduction micro-surfacing mixture

A technology of micro-surfacing mixture and waste rubber powder, which is applied in the field of activated waste rubber powder noise-reducing micro-surfacing mixture, which can solve the problem of inability to effectively reduce the driving noise of preventive maintenance and sealing vehicles, and does not consider the interaction between rubber powder and asphalt. Problems such as capacitive and adhesive properties, unable to quickly restore traffic, etc., to achieve rapid opening of traffic, high and low temperature performance and durability, and increase the effect of viscosity

Active Publication Date: 2021-11-19
海南省交通规划勘察设计研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The feature of the prior art is that the rubber powder is directly applied to the mixture by a wet method (rubber asphalt) or a dry method (replacing aggregate), without considering the compatibility and bonding performance of the rubber powder and asphalt. To a large extent, the activity and utilization rate of rubber powder are inhibited. Therefore, it is necessary to increase the activity of rubber powder to achieve a higher utilization rate and truly realize the recycling of waste resources.
And after adding rubber powder, it will cause the strength of the micro-surface to form slowly, and the traffic cannot be restored quickly
Moreover, the preventive maintenance methods for asphalt pavement noise reduction in the prior art are mainly to increase the porosity of the seal layer or reduce the depth of the surface structure by adjusting the material gradation. Engineering practice shows that these methods have no obvious noise reduction effect and cannot effectively reduce the asphalt Road surface preventive maintenance sealing vehicle driving noise

Method used

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  • Activated waste rubber powder noise reduction micro-surfacing mixture
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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In this embodiment, the activated waste rubber powder noise-reducing micro-surface mixture, the raw materials include the following components by weight: 100 parts of mineral material, 7 parts of modified emulsified asphalt, 1 part of activated waste rubber powder, 2 parts of cement, octadecane 0.5 parts of trimethylammonium chloride, 0.5 parts of composite additives, and 5 parts of water.

[0025] In this embodiment, the water-based epoxy resin is composed of water-based epoxy resin and water-based curing agent, and the water-based epoxy accounts for 5% of the mass percentage of pure asphalt; the mass percentage of the styrene-butadiene rubber accounted for pure asphalt is 1% The activated waste rubber powder is waste tire rubber powder, the particle size of which is a mixture of 50 mesh and 60 mesh, and the weight ratio of the two is 1:1; the waste rubber powder is processed in the following way: the waste rubber powder is placed In a microwave oven with a power of 50...

Embodiment 2

[0029] The activated waste rubber powder noise-reducing micro-surfacing mixture of this embodiment, the raw materials include the following components by weight: 100 parts of mineral material, 11 parts of modified emulsified asphalt, 3 parts of activated waste rubber powder, 3 parts of cement, 18 parts 1.5 parts of alkyltrimethylammonium chloride, 1 part of composite additive;

[0030] In the present embodiment, the water-based epoxy resin is composed of water-based epoxy resin and water-based curing agent, and the water-based epoxy accounts for 30% by mass of pure asphalt; the mass percent of styrene-butadiene rubber accounted for pure asphalt is 5% ; The activated waste rubber powder is waste tire rubber powder, and its particle size is a mixture of 40 mesh and 70 mesh (the mass ratio of the two is 1:1); the waste rubber powder is processed in the following way: the waste rubber powder Place it in a microwave oven with a power of 700W, and the radiation time is 100s.

[003...

Embodiment 3

[0034] The activated waste rubber powder noise-reducing micro-surfacing mixture of this embodiment, the raw materials include the following components by weight: 100 parts of mineral material, 7 parts of modified emulsified asphalt, 3 parts of activated waste rubber powder, octadecyl trimethyl 1.5 parts of ammonium chloride, 0.5 parts of composite additives;

[0035] In this embodiment, the water-based epoxy resin is composed of water-based epoxy resin and water-based curing agent, and the water-based epoxy accounts for 5% of the mass percent of pure asphalt; the mass percent of the pure asphalt accounted for by the styrene-butadiene rubber is 5% ; The activated waste rubber powder is waste tire rubber powder, and its particle size is a mixture of 35 mesh, 45 mesh, and 80 mesh (the mass ratio of the three is 1:1:1); the waste tire rubber powder is processed in the following manner : Place the waste rubber powder in a microwave oven with a power of 900W, and the radiation time ...

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Abstract

The invention discloses an activated waste rubber powder noise-reducing micro-surfacing mixture. Said composite additive is the mixture of polyphenylsiloxane, N,N-dicyclohexyl-2-benzothiazyl sulfenamide, chloroprene rubber, polypropylene glycol diacrylate, polytetrahydrofuran ether and cross-linking agent; Improve the compatibility and bonding performance of rubber powder and mineral aggregates with asphalt, improve the noise reduction effect, and improve the viscosity, toughness and toughness of asphalt through asphalt modifiers, thereby improving the weather resistance and water resistance of the noise reduction micro-surface and fluidity resistance, enhance the noise reduction effect, increase the speed of micro-surface strength formation through octadecyltrimethylammonium chloride, and achieve the purpose of rapid opening of traffic; enhance the compatibility of each component through compound additives, and The mechanical energy is converted into the kinetic energy of the micromolecular chain or segment, and the mechanical energy is converted into thermal energy to dissipate, improving the noise reduction effect.

Description

technical field [0001] The invention relates to the technical field of asphalt pavement preventive maintenance, in particular to an activated waste rubber powder noise-reducing micro-surfacing mixture. Background technique [0002] Micro-surfacing technology is an economical, fast, effective, environmentally friendly, open traffic, fast, and long-life pavement preventive maintenance technology. With its outstanding advantages in improving road surface skid resistance, sealing water, improving road appearance and smoothness, etc., It has become the mainstream technology for preventive maintenance of high-grade highways and urban roads in my country. However, when micro-surfacing is used, the noise inside and outside the vehicle during driving, that is, tire-road noise, is significantly higher than that of hot-mixed and hot-paved asphalt pavement, which greatly affects the driving comfort of the road surface and restricts the promotion and application of micro-surfacing technol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B26/26
CPCC04B26/26C04B28/00C04B2111/0075C04B18/12C04B24/36C04B18/22C04B24/121C04B24/42C04B24/20C04B24/2682C04B24/2641C04B24/32C04B2103/0068
Inventor 林忠何丽红王泽云成家胜黄智韦世卓温仙仙马悦帆
Owner 海南省交通规划勘察设计研究院
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