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SBS/rubber powder composite modified asphalt based on Xinjiang asphalt and preparation method thereof

A technology of composite modified asphalt and asphalt, which is applied in building components, building insulation materials, buildings, etc., can solve the problems of poor storage stability and insufficient high and low temperature performance, and achieve stable thermal storage, better softening point, and high softening point Effect

Active Publication Date: 2020-08-11
新疆维吾尔自治区交通规划勘察设计研究院 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the deficiencies and defects of the above-mentioned prior art, the purpose of the present invention is to provide a kind of SBS / rubber powder composite modified asphalt based on Xinjiang asphalt and its preparation method, so as to solve the problems of poor storage stability, high and low temperature after modification of Xinjiang asphalt in the prior art. Insufficient performance and other shortcomings

Method used

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  • SBS/rubber powder composite modified asphalt based on Xinjiang asphalt and preparation method thereof
  • SBS/rubber powder composite modified asphalt based on Xinjiang asphalt and preparation method thereof

Examples

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Effect test

Embodiment 1

[0042] This embodiment provides a kind of SBS / rubber powder composite modified asphalt based on Xinjiang asphalt, which is characterized in that, in parts by weight, it is made of the following raw materials: Xinjiang blended asphalt is 100 powder, SBS is 2 parts, rubber powder 10 parts, compatibilizer 1.5 parts, plasticizer 2 parts, reinforcing agent 1 part, coupling agent 0.5 parts, stabilizer 0.2 parts.

[0043] Specifically, the reinforcing agent is tetraacicular zinc oxide whisker (T-ZnOw).

[0044] Specifically, Xinjiang blended asphalt is prepared by blending Karamay 90# asphalt and Tahe 60# asphalt in a weight ratio of 60:40. .

[0045] The preparation method of the SBS / rubber powder composite modified asphalt based on Xinjiang asphalt of this embodiment specifically includes the following steps:

[0046] Step 1, SBS preprocessing:

[0047] Weigh the SBS and the compatibilizer, preheat the SBS and the compatibilizer to 50°C respectively, after the compatibilizer has...

Embodiment 2

[0059] This embodiment provides a kind of SBS / rubber powder composite modified asphalt based on Xinjiang asphalt, which is characterized in that, in parts by weight, it is made of the following raw materials: Xinjiang blended asphalt is 100 powder, SBS is 3 parts, rubber powder 10 parts, compatibilizer 2.5 parts, plasticizer 3 parts, reinforcing agent 2 parts, coupling agent 1 part, stabilizer 0.2 parts.

[0060] Specifically, the reinforcing agent is tetraacicular zinc oxide whisker (T-ZnOw).

[0061] Specifically, Xinjiang blended asphalt is prepared by blending Karamay 90# asphalt and Tahe 60# asphalt in a weight ratio of 45:55. .

[0062] The preparation method of the Xinjiang asphalt-based SBS / rubber powder composite modified asphalt in this example is the same as that in Example 1.

[0063] The performance test results of this embodiment are shown in Table 1.

Embodiment 3

[0065] This embodiment provides a kind of SBS / rubber powder composite modified asphalt based on Xinjiang asphalt, which is characterized in that, in parts by weight, it is made of the following raw materials: Xinjiang blended asphalt is 100 powder, SBS is 3 parts, rubber powder 15 parts, compatibilizer 1.5 parts, plasticizer 4 parts, reinforcing agent 2 parts, coupling agent 1 part, stabilizer 0.2 parts.

[0066] Specifically, the reinforcing agent is tetraacicular zinc oxide whisker (T-ZnOw).

[0067] Specifically, Xinjiang blended asphalt is prepared by blending Karamay 90# asphalt and Tahe 60# asphalt in a weight ratio of 45:55. .

[0068] The preparation method of the Xinjiang asphalt-based SBS / rubber powder composite modified asphalt in this example is the same as that in Example 1.

[0069] The performance test results of this embodiment are shown in Table 1.

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Abstract

The invention provides SBS / rubber powder composite modified asphalt based on Xinjiang asphalt and a preparation method. The SBS / rubber powder composite modified asphalt is prepared from the followingraw materials in parts by weight: 100 parts of Xinjiang blended asphalt, 2-4 parts of SBS, 10-20 parts of rubber powder, 1.5-3.5 parts of a compatilizer, 2-4 parts of a plasticizer, 1-2 parts of a reinforcing agent, 0.5-1 part of a coupling agent and 0.2 parts of a stabilizer. The preparation method specifically comprises the following steps: step 1, SBS pretreatment; step 2, Xinjiang asphalt blending; step 3, asphalt modification and development; and step 4, asphalt redevelopment. The problems of poor compatibility of Xinjiang local asphalt (Karaya asphalt, asphalt manufactured by Tahe Refining and Chemical Limited Liability Company and the like) with modifiers such as rubber powder and SBS (styrene butadiene styrene) and difficult modification of Xinjiang local asphalt are effectively solved through asphalt blending, addition of various assistants and the like, application of the Xinjiang local asphalt can be promoted, and the highway engineering construction cost is reduced.

Description

technical field [0001] The invention belongs to the field of road building materials and relates to modified asphalt, in particular to a Xinjiang asphalt-based SBS / rubber powder composite modified asphalt and a preparation method. Background technique [0002] The Xinjiang Uygur Autonomous Region has become one of the pilot projects for the construction of a national transportation power, and the further development of transportation projects has been put on the agenda. SBS modified asphalt is mainly used as the bonding material in highway construction in Xinjiang, but local Karamay asphalt (KLMY) and Tahe asphalt (TH) are difficult to modify. Among them, the KLMY component is characterized by low aromatic content, low asphaltene, and high colloid, while the TH component is characterized by high asphaltene and low colloid. The solubility difference between the two and the modifier is large, so it is directly modified with SBS. Poor performance, difficult to store, and insig...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L53/02C08L17/00C08L21/00C08K13/04C08K7/08C08K5/12C08K5/1515C08K5/548
CPCC08L95/00C08L2205/025C08L2205/035C08L53/02C08L17/00C08L21/00C08K13/04C08K7/08C08K5/12C08K5/1515C08K5/548
Inventor 王朝辉宋亮孙泽强鲁新虎董刚舒诚黄子义李永刚李彦伟高阳江
Owner 新疆维吾尔自治区交通规划勘察设计研究院
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