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High-viscosity asphalt modifier, modified asphalt and asphalt mixture

An asphalt modifier and modified asphalt technology, applied in the field of asphalt and asphalt mixture, asphalt modifier, can solve the problems of low porosity of asphalt concrete pavement, and achieve the effects of preventing aging, increasing porosity, and preventing flying

Inactive Publication Date: 2011-10-19
SHENZHEN OCEANPOWER NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problem of low porosity of the existing asphalt concrete pavement, the present invention provides a high-viscosity asphalt modifier capable of increasing the porosity of the asphalt concrete pavement

Method used

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  • High-viscosity asphalt modifier, modified asphalt and asphalt mixture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Styrene-butadiene-styrene copolymer, styrene-butadiene rubber, rosin, sulfur and carbon black are weighed according to the ratio of 4:2:8:0.15:0.1, and then the four substances are put into The high-speed mixer is fully mixed, and the four substances are fully mixed, and then the materials are added to the twin-screw extruder for heating and extrusion. After cooling and drying, the extruded strip modifier is sent to the Pelletizing is carried out in the pelletizer, and the cut pellets are high-viscosity asphalt modifier.

Embodiment 2

[0018] Example 2: The high-viscosity asphalt modifier prepared in Example 1 was added to the heavy traffic asphalt according to the needs of the actual project, and the mixing ratio of the heavy traffic asphalt and the high-viscosity asphalt modifier was 84:16, and then prepared into The required high-viscosity modified asphalt and the performance indicators of the high-viscosity modified asphalt containing high-viscosity asphalt modifier all meet the relevant national standards, as shown in Table 1.

[0019] Table 1

[0020]

Embodiment 3

[0021] Example 3: During the production process of the mixture, the high-viscosity modified asphalt prepared in Example 2 was put into the mixing building and mixed with the aggregate, wherein the high-viscosity modified asphalt accounted for 5% of the total weight of the mixture , and then prepare high-viscosity asphalt mixture for road construction and so on. The performance indicators of the prepared high-viscosity asphalt mixture are shown in Table 2.

[0022] Table 2

[0023] Test items

[0024] It can be seen from the above experimental data that the high-viscosity asphalt and high-viscosity asphalt mixture prepared by using this high-viscosity asphalt modifier have excellent performance in all aspects, fully meeting the national requirements for high-viscosity asphalt and high-viscosity asphalt. Relevant technical standards for mixtures.

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Abstract

The invention discloses a formula of a high-viscosity asphalt modifier and application thereof. The high-viscosity asphalt modifier is composed of the following components in parts by weight: 3-10 parts of thermoplastic elastomer, 2-10 parts of thermoplastic resin, 2-10 parts of rubber polymer, 0.05-0.3 part of vulcanizing agent and 0.05-0.3 part of carbon substance; and preferably, the components are abietic resin, styrene-butadiene-styrene copolymer, butadiene styrene rubber, sulfur and carbon black. The manufacturing technique of the high-viscosity asphalt modifier provided by the invention is simple and can be used for preparing the black high-viscosity asphalt and paving a black permeable pavement and a black porous pavement; the high-viscosity asphalt modifier provided by the invention is beneficial to reducing city noise pollution, improving road surface friction coefficient, effectively preventing from generating a water film and improving the safety of driving in rainy days; and the needed raw material source of the high-viscosity asphalt modifier provided by the invention is wide, the manufacturing technique is simple and the adaptability is wide.

Description

technical field [0001] The invention relates to a construction material used in the field of engineering, in particular to an asphalt modifier for engineering, and also relates to asphalt and asphalt mixture. Background technique [0002] With the continuous development and progress of the transportation industry, the number of automobile-based means of transportation continues to increase rapidly, which objectively requires the progress and quality of road construction, among which the quality of road construction is particularly important. On the one hand, it is necessary to ensure that the roads built can Long-term use, for example, it can reduce noise, water permeability, ventilation, etc.; on the other hand, it can provide guarantee for the safe operation of the car, such as improving the friction coefficient during braking, shortening the braking distance, etc. One of the important criteria to measure the quality of roads is the void ratio of the pavement. The national...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L7/00C08L9/06C08L93/04C08K3/06C08K3/04C08L95/00C04B26/26
Inventor 何唯平唐小亮
Owner SHENZHEN OCEANPOWER NEW MATERIALS TECH
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