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Asphalt mixing material additive and preparation method thereof

An asphalt mixture and additive technology, which is applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems affecting the modulus efficiency of the mixture, melt dispersion of additives, and poor adhesion. Achieve the effect of low production cost, improved melt index and improved modulus

Active Publication Date: 2011-08-31
JIANGSU BAOLI INT INVESTMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] 1. If all the polyolefins in the additives are made of new materials, the cost will be very high, and it will be difficult to promote; if some recycled polyolefin old materials are used as the components of the additives, when the additives are mixed with stone dry and asphalt wet. Due to the short mixing time, it is impossible for the additive to melt and disperse in a short time, which affects its ability to improve the modulus of the mixture.
[0011] 2. The conventional mixture additive is a mixture composed of various polyolefins, and the adhesion to the mixture is not very good, so it can increase the modulus of asphalt mixture, thereby improving the anti-rutting ability, although it is better than modified asphalt, but still not ideal

Method used

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  • Asphalt mixing material additive and preparation method thereof
  • Asphalt mixing material additive and preparation method thereof
  • Asphalt mixing material additive and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] As shown in the figure, a high-strength structural asphalt material, including new polyolefin material, old polyolefin material, inorganic filler, ultrafine carbon black particles, organic acid anhydride, anti-aging agent, is characterized in that its weight ratio is: 25-30 parts of new polyolefin material, 57-67 parts of old polyolefin material, 3-5 parts of inorganic filler, 0.8-1 part of ultra-fine carbon black particles, 2-4.5 parts of organic acid anhydride, 0.1-0.15 parts of anti-aging agent, etc. The production and preparation process is as follows:

[0028] A. Measure 25-30 parts by weight of new polyolefin material and 57-67 parts by weight of old polyolefin material after type selection and evaluation, and put them into the mixer respectively, start the mixer and mix for 30-40 minutes to make them fully mixed;

[0029] B. Put the measured 3-5 parts by weight of inorganic filler, 0.8-1 parts by weight of ultrafine carbon black particles and 0.1-0.15 parts by we...

Embodiment 2

[0034] As shown in the figure, a high-strength structural asphalt material, including new polyolefin material, old polyolefin material, inorganic filler, ultrafine carbon black particles, organic acid anhydride, anti-aging agent, is characterized in that its weight ratio is: 25-30 parts of new polyolefin material, 57-67 parts of old polyolefin material, 3-5 parts of inorganic filler, 0.8-1 part of ultra-fine carbon black particles, 2-4.5 parts of organic acid anhydride, 0.1-0.15 parts of anti-aging agent, etc. The production and preparation process is as follows:

[0035] A. Measure 28 parts by weight of new polyolefin material and 62 parts by weight of old polyolefin material after type selection and evaluation, and put them into the mixer respectively, and start the mixer to mix for 30-40 minutes to make them fully mixed;

[0036] B, 3.5 parts by weight of inorganic fillers, 0.86 parts by weight of superfine carbon black particles and 0.11 parts by weight of anti-aging agent...

Embodiment 3

[0041] The inorganic filler described in embodiment 1 and embodiment 2 is diatomite, and described organic acid anhydride is acetic anhydride and maleic anhydride mixture, and described old polyolefin material is high-pressure polyethylene particle material PE and EVA material mixture, The ultrafine carbon black particles are ultrafine nanoscale ultrafine carbon black particles. The weight portion of the acetic anhydride is 1.5-2.5, the weight portion of the maleic anhydride is 1-2, the weight portion of the high-pressure polyethylene particle material PE is 35-40, and the weight portion of the EVA material is 22 -27.

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Abstract

The invention provides an asphalt material with a high-strength structure and a preparation method thereof, which aim at improving the track resistance, the, water-resistant damage performance and low-temperature cracking resistant performance of the asphalt pavement. The asphalt material is characterized by comprising the following components by the weight portion: 25 to 30 of new polyolefine material, 57 to 67 of old polyolefine material, 3 to 5 of inorganic filler, 0.8 to 1 of ultrafine carbon black particles, 2 to 4.5 of organic anhydride and 0.1 to 0.15 of age inhibitor. The asphalt material with the high-strength structure, which is prepared by the method, has lower production cost and favorable dispersion performance, and can markedly improve the modulus of the asphalt mixing material.

Description

technical field [0001] The invention relates to an additive material for asphalt mixture (for paving roads) and its preparation method, in particular to a high-strength structural asphalt material which can significantly improve the modulus of "asphalt mixture" and has high dispersion performance, and its preparation method. Background technique [0002] With the continuous increase of road traffic in our country, especially the increase of heavy-duty vehicles and the use of high-pressure tires, the channelization of traffic flow and the long-lasting summer high temperature weather. Pavement rutting has become the main form of early damage to highway asphalt pavement. Rutting not only deforms the road surface and destroys the smoothness, but also seriously endangers driving safety, because high-speed vehicles will drift when encountering accumulated water in rutted grooves, which is dangerous to driving. [0003] Domestic and foreign studies have shown that the higher the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/26C04B18/20C04B16/04
CPCY02W30/91
Inventor 周德洪
Owner JIANGSU BAOLI INT INVESTMENT CO LTD