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Environment-friendly oil-resistant asphalt pavement material and preparation method thereof

A kind of asphalt pavement, environment-friendly technology, applied in the direction of on-site coagulation pavement, building insulation materials, roads, etc. Stone adhesion and other problems, to achieve the effect of unaffected low temperature performance, improved oil resistance, and reduced hot mixing and construction temperature

Inactive Publication Date: 2012-05-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that polymers such as SBS and EVA are expensive, which increases the production cost of oil-resistant asphalt pavement materials
[0004] CN101037539A discloses a kind of oil resistance modified asphalt, by adding layered silicate clay to polymer modified asphalt to improve its oil resistance, because the finely ground silicate clay has a larger specific surface, it will absorb the asphalt Part of the oil content will reduce the adhesion between asphalt and stone, and will greatly increase the viscosity of modified asphalt, requiring higher mixing and construction temperatures, which will increase the emission of harmful gases such as asphalt smoke, which is not conducive to environmental protection.

Method used

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  • Environment-friendly oil-resistant asphalt pavement material and preparation method thereof
  • Environment-friendly oil-resistant asphalt pavement material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Select asphalt with a needle penetration of 92 1 / 10mm and a softening point of 46.4°C as the base asphalt. Take 100 parts of the base asphalt in a molten state, add 2 parts of aromatic-rich extract oil and 5 parts of Sasobit wax, and heat the mixture at a temperature of 145°C and Under the condition of stirring speed of 350rpm / min, stir and react for 45 minutes, continue to heat up to 165°C, add 12 parts of waste tire rubber powder and 2.5 parts of styrene-butadiene rubber (SBR) to heat-swell for 60 minutes, and then add 0.11 parts of cross-linking agent sulfur, Grind for 45 minutes at 170° C. in a high shear machine or a colloid mill to prepare the environmentally friendly oil-resistant asphalt pavement material of the present invention. The properties are shown in Table 2. According to the standard of the Ministry of Communications "Test Regulations for Asphalt and Asphalt Mixtures in Highway Engineering" JTJ052-2000, the asphalt pavement material is used as a binder, ...

Embodiment 2

[0025] Prepare asphalt pavement material according to the method of Example 1, the difference is that the addition of Sasobit wax is 4 parts, the addition of extracted oil is 4.0 parts, the addition of tire rubber powder and SBR is 15 parts and 2.0 parts respectively, and the addition of crosslinking agent sulfur for 015 copies. Its properties are shown in Table 2, and the mixture specimen is 3 # After soaking in aviation kerosene for 24 hours, the oil resistance results are shown in Table 2.

Embodiment 3

[0027] Prepare asphalt pavement material according to the method of Example 1, the difference is that the addition of Sasobit wax is 3 parts, the addition of extracted oil is 8.0 parts, the addition of tire rubber powder and SBR is 18 parts and 1.5 parts respectively, and the addition of crosslinking agent sulfur is 0.18 parts. Its properties are shown in Table 2. The mixture specimen was heated at 30°C for 3 # After soaking in aviation kerosene for 24 hours, the oil resistance results are shown in Table 2.

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Abstract

The invention discloses an environment-friendly oil-resistant asphalt pavement material and a preparation method thereof. The oil-resistant pavement material comprises the following components in part by weight: 100 parts of base asphalt, 5 to 25 parts of waste tyre rubber powder, 0.5 to 5.0 parts of styrene butadiene rubber (SBR), 1 to 10 parts of macromolecular wax, and 0.1 to 0.3 part of crosslinking agent. The preparation method comprises the following steps of: adding the macromolecular wax into molten base asphalt in the weight proportion, stirring for reaction, adding the waste tyre rubber powder and the SBR, keeping temperature for swelling, and finally adding the crosslinking agent and grinding fully to obtain the environment-friendly oil-resistant asphalt pavement material. The waste tyre rubber powder is used as an asphalt modifier and matched with the SBR and the macromolecular wax, and the environment-friendly oil-resistant asphalt pavement material has high oil resistance and low cost and is favorable for reducing environmental pollution.

Description

technical field [0001] The invention relates to an asphalt pavement material and a preparation method thereof, in particular to an environment-friendly oil-resistant asphalt pavement material and a preparation method thereof. Background technique [0002] Asphalt material is used as a binder in the mixture of road paving. In order to meet the increasing demand of road construction, asphalt material not only has good viscoelasticity, plasticity and adhesion, but also often needs to meet the requirements of fuel (gasoline, diesel oil) , kerosene) and oil products (lubricating oil, engine oil, etc.) dissolution and erosion capabilities. Especially in airports, waste disposal sites, gas stations, oil tank farms and other places where the road surface is often exposed to spilled fuel and oil, asphalt will be dissolved and leached out of the mixture, making the asphalt pavement soft and bone The cohesion between the materials decreases, the pavement structure becomes loose, and f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L21/00C08L9/06C08K13/02C08K3/06E01C7/26
Inventor 陈杰徐青柏石君章万淼宣根海
Owner CHINA PETROLEUM & CHEM CORP
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