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A kind of low temperature resistant cold mix permeable asphalt and preparation method thereof

A water-permeable asphalt and low-temperature-resistant technology, which is applied in building insulation materials, building components, buildings, etc., can solve environmental hazards and other problems, and achieve the effects of preventing cracking, good low-temperature resistance, and good low-temperature flexibility

Active Publication Date: 2021-07-20
斯博锐精细化学品(广东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both thiamethoxam and polyacenaphthylene are polymer compounds with certain toxicity, which are harmful to the environment and are not suitable for use in permeable asphalt; in order to reduce the threat to the environment, the present invention provides a low temperature resistant cold mix permeable asphalt and its preparation method

Method used

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  • A kind of low temperature resistant cold mix permeable asphalt and preparation method thereof
  • A kind of low temperature resistant cold mix permeable asphalt and preparation method thereof
  • A kind of low temperature resistant cold mix permeable asphalt and preparation method thereof

Examples

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Effect test

Embodiment 1

[0020] A low-temperature-resistant cold-mix permeable asphalt, which is composed of the following components in weight percentage: rubber asphalt 62%, coarse aggregate 12%, fine aggregate 5%, single-component high-strength polyurethane 2%, glycerol 10%, porous ceramics 1.5% of microbeads, 0.18% of modified fullerene and the balance of diatomaceous earth.

[0021] The preparation method of the rubber asphalt comprises the following steps: heating 90# road petroleum asphalt to 172°C, adding rubber powder thereto in an amount of 18% by weight of the asphalt, and adding an anti-shedding agent therein according to an amount of 0.35% by weight of the asphalt , stirred for 1.5h, and that was it.

[0022] The particle diameter of the coarse aggregate is > 3mm, and the particle diameter of the fine aggregate is ≤ 1.5mm.

[0023] The preparation method of the one-component high-strength polyurethane includes the following steps: take 210 polyether polyol and part of dichloromethane int...

Embodiment 2

[0032] A low-temperature-resistant cold-mix permeable asphalt, which is composed of the following components by weight percentage: rubber asphalt 65%, coarse aggregate 8%, fine aggregate 6%, single-component high-strength polyurethane 1%, glycerol 12%, porous ceramics 1% of microbeads, 0.2% of modified fullerene and the balance of diatomaceous earth.

[0033] The preparation method of the rubber asphalt comprises the following steps: heating 90# road petroleum asphalt to 170°C, adding rubber powder thereto in an amount of 20% by weight of the asphalt, and adding anti-shedding agent therein according to an amount of 0.3% by weight of the asphalt , Stir for 2h, you can.

[0034] The particle diameter of the coarse aggregate is > 3mm, and the particle diameter of the fine aggregate is ≤ 1.5mm.

[0035] The preparation method of the one-component high-strength polyurethane includes the following steps: take 210 polyether polyol and part of dichloromethane into the reactor, heat u...

Embodiment 3

[0044]A low-temperature-resistant cold-mix permeable asphalt, which is composed of the following components in weight percentage: rubber asphalt 55%, coarse aggregate 15%, fine aggregate 3%, single-component high-strength polyurethane 3%, glycerol 5%, porous ceramics 2% of microbeads, 0.1% of modified fullerene and the balance of diatomaceous earth.

[0045] The preparation method of the rubber asphalt comprises the following steps: heating 90# road petroleum asphalt to 175°C, adding rubber powder thereto in an amount of 15% by weight of the asphalt, and adding an anti-shedding agent therein according to an amount of 0.5% by weight of the asphalt , stir for 1h, and that’s it.

[0046] The particle diameter of the coarse aggregate is > 3mm, and the particle diameter of the fine aggregate is ≤ 1.5mm.

[0047] The preparation method of the one-component high-strength polyurethane includes the following steps: take 210 polyether polyol and part of dichloromethane into the reactor...

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Abstract

The invention discloses a low-temperature-resistant cold-mix permeable asphalt and a preparation method thereof. 1-3% of high-strength polyurethane, 5-12% of glycerol, 1-2% of porous ceramic microbeads, 0.1-0.2% of modified fullerene and the balance of polyurethane. Among them, rubber asphalt has better low-temperature flexibility, aging resistance, fatigue resistance, and water damage resistance than ordinary asphalt, and is more suitable for pavement materials; single-component high-strength polyurethane makes each raw material possess Better bonding performance can effectively prevent cracking; and mixed use of modified fullerene and glycerol has good low temperature resistance without cracking at minus 40 °C.

Description

technical field [0001] The invention relates to the technical field of permeable asphalt, in particular to a low-temperature-resistant cold-mix permeable asphalt and a preparation method thereof. Background technique [0002] Asphalt is often used to pave roads, and as the requirements for road drainage become higher and higher, permeable pavements emerge as the times require, and permeable pavements are usually paved with permeable asphalt. Permeable asphalt is an asphalt mixture with large porosity. By adjusting the ratio of coarse aggregate to fine aggregate, there are more gaps between coarse aggregates, so that permeable asphalt has large porosity to achieve water permeability. However, general asphalt has average frost resistance. When used in cold regions, its structural strength is likely to decrease due to low temperature. Moreover, because permeable asphalt has many pores, once its structural strength decreases, it is more likely to be damaged by external forces. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L21/00C08L75/08C08K9/04C08K3/04C08K7/26C08K5/053C08K7/24C08K13/06
CPCC08L95/00C08L2201/08C08L2205/03C08L21/00C08L75/08C08K9/04C08K9/08C08K3/045C08K7/26C08K5/053C08K7/24C08K13/06
Inventor 陆天献
Owner 斯博锐精细化学品(广东)有限公司