TPK desulfurized rubber powder/SBS composite modified asphalt and preparation method thereof

A technology of compound modified asphalt and desulfurized rubber powder, applied in building components, building insulation materials, buildings, etc., can solve the problems of reducing the high and low temperature performance of rubber asphalt, application limitations, and high SBS prices, and achieves improved compatibility, reduced The effect of performance, simple equipment

Pending Publication Date: 2022-03-04
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method will reduce the high and low temperature performance of rubber asphalt
On the other hand, SBS is a widely used and mature road asphalt modifier, which can significantly improve the high and low temperature performance of asphalt pavement at the same time; but the high price of SBS limits its application

Method used

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  • TPK desulfurized rubber powder/SBS composite modified asphalt and preparation method thereof
  • TPK desulfurized rubber powder/SBS composite modified asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] The TPK desulfurized rubber powder / SBS composite modified asphalt given in this example consists of the following raw materials in parts by weight: 78 parts of base asphalt, 13 parts of TPK desulfurized rubber powder, 1 part of SBS, 0.1 part of stabilizer, solubilizer 0.1 part and anti-aging agent 0.1 part.

[0071] The preparation method of the above-mentioned TPK desulfurized rubber powder / SBS composite modified asphalt is carried out according to the following steps:

[0072] Step 1, weighing each raw material respectively according to the mass proportion of the raw materials;

[0073] Step 2: Put the base asphalt in an oven at 150°C and heat it to a fluid state, take it out and put it on the heating equipment, and add SBS, stabilizer and anti-aging agent in sequence under stirring at 300r / min. Raise the temperature to 160°C within 5 minutes after the addition is completed and keep it for 30 minutes;

[0074] Step 3. Put the evenly stirred asphalt into an oven at 1...

Embodiment 2

[0081] The difference between this embodiment and the above-mentioned embodiment 1 lies in the ratio of each raw material. The TPK desulfurized rubber powder / SBS composite modified asphalt given in this example consists of the following raw materials in parts by weight: 83 parts of base asphalt, 17 parts of TPK desulfurized rubber powder, 3 parts of SBS, 0.8 parts of stabilizer, and 0.8 parts of solubilizer part and 0.8 part of anti-aging agent.

[0082] The preparation method of the above-mentioned TPK desulfurized rubber powder / SBS composite modified asphalt is carried out according to the following steps:

[0083] Step 1, weighing each raw material respectively according to the mass proportion of the raw materials;

[0084] Step 2: Put the base asphalt in an oven at 150°C and heat it to a fluid state, take it out and put it on the heating equipment, and add SBS, stabilizer and anti-aging agent in sequence under stirring at 300r / min. Raise the temperature to 160°C within 5...

Embodiment 3

[0092] The difference between this embodiment and the above-mentioned embodiment 1 lies in the ratio of each raw material. The TPK desulfurized rubber powder / SBS composite modified asphalt given in this example is calculated in parts by weight and consists of the following raw materials: 80 parts of base asphalt, 15 parts of TPK desulfurized rubber powder, 1.5 parts of SBS, 0.3 parts of stabilizer, solubilizer 0.3 parts and anti-aging agent 0.3 parts.

[0093] The preparation method of the above-mentioned TPK desulfurized rubber powder / SBS composite modified asphalt is carried out according to the following steps:

[0094] Step 1, weighing each raw material respectively according to the mass proportion of the raw materials;

[0095] Step 2: Put the base asphalt in an oven at 150°C and heat it to a fluid state, take it out and put it on the heating equipment, and add SBS, stabilizer and anti-aging agent in sequence under stirring at 300r / min. Raise the temperature to 160°C wi...

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Abstract

The invention discloses TPK desulfurized rubber powder/SBS (styrene butadiene styrene) composite modified asphalt and a preparation method thereof, aiming at the defect of insufficient performance of common rubber asphalt, the economic TPK desulfurized rubber powder/SBS composite modified asphalt with balanced performance is designed by adopting materials such as matrix asphalt, TPK desulfurized rubber powder, SBS and a stabilizer. The high-temperature and low-temperature performance is excellent, the viscosity is proper, and the storage stability is relatively good.

Description

technical field [0001] The invention belongs to the field of road building materials and relates to rubber powder modified asphalt, in particular to a TPK desulfurized rubber powder / SBS composite modified asphalt and a preparation method thereof. Background technique [0002] Rubber asphalt has a series of environmental protection meanings such as excellent high temperature anti-rutting, low temperature anti-cracking, good durability, reduction of road noise, and effective recycling of waste tire resources. It has been widely used in road construction. However, in practical applications, it is found that when the rubber powder content is low, the asphalt modification effect is not obvious; and when the rubber powder content is high, the modified asphalt is prone to segregation, high viscosity, high construction temperature, and difficult construction. series of questions. Therefore, solving the above problems has great engineering value and social significance for the furth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L17/00C08L53/02C08K3/16C08K5/13C08K5/18C08J11/10C08L19/00
CPCC08L95/00C08J11/10C08K2003/162C08J2319/00C08L17/00C08L53/02C08K3/16C08K5/13C08K5/18Y02W30/62
Inventor 陈华鑫伍思豫况栋梁谭华刘文昌
Owner CHANGAN UNIV
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