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Modified SMC normal temperature asphalt and preparation method thereof

A normal temperature asphalt and modification technology, applied in building thermal insulation materials, building components, buildings, etc., can solve the problems of stone heating energy consumption and short storage period, and achieve the effect of avoiding waste.

Inactive Publication Date: 2019-06-07
湖南鑫长胜材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems existing in the current SMC asphalt mixture, that is, in the preparation process, the stone needs to be heated, the energy consumption is high, and the storage period is not long. Long-term storage characteristics, and good strength and bonding performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In this embodiment, in parts by weight, it includes: 70 parts of base asphalt, 20 parts of methyl styrene block copolymer, 15 parts of oleic acid, 8 parts of water-based acrylate, 8 parts of water-based epoxy resin, and oleic acid 5 parts of hydroxyethyl imidazoline.

[0019] In this embodiment, the preparation method of SMC modified normal temperature asphalt is carried out according to the following steps:

[0020] The first step: Weigh the raw materials in parts by weight and set aside;

[0021] The second step: heating the base pitch to 140°C, adding oleic acid and oleic hydroxyethyl imidazoline and stirring at a temperature of 120°C at a speed of 30r / min for 15 minutes to obtain a mixture A;

[0022] The third step: After the temperature of mixture A drops to 100°C, add methyl styrene block copolymer, water-based acrylate, and water-based epoxy resin and stir for 10 minutes at a speed of 20r / min to obtain the modified SMC at room temperature asphalt;

[0023] The fourth st...

Embodiment 2

[0026] In this embodiment, by weight, it includes: 65 parts of base asphalt, 15 parts of methyl styrene block copolymer, 10 parts of oleic acid, 10 parts of water-based acrylate, 7 parts of water-based epoxy resin, and oleic acid-based 4 parts of hydroxyethyl imidazoline.

[0027] In this embodiment, the preparation method of SMC modified normal temperature asphalt is carried out according to the following steps:

[0028] The first step: Weigh the raw materials in parts by weight and set aside;

[0029] The second step: heating the base pitch to 120°C, adding oleic acid and oleic hydroxyethyl imidazoline and stirring at a temperature of 100°C at a speed of 20r / min for 10 minutes to obtain a mixture A;

[0030] The third step: After the temperature of mixture A drops to 100°C, add methyl styrene block copolymer, water-based acrylate, and water-based epoxy resin and stir for 15 minutes at a speed of 30r / min to obtain a modified SMC at room temperature asphalt;

[0031] The fourth step: ...

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Abstract

The invention discloses a modified SMC normal temperature asphalt and a preparation method thereof. The modified SMC normal temperature asphalt comprises following raw materials in parts by weight: 60to 80 parts of matrix asphalt, 10 to 20 parts of methyl styrene segmented copolymer, 10 to 20 parts of unsaturated fatty acid, 5 to 10 parts of aqueous acrylate, 5 to 10 parts of aqueous epoxy resin,and 3 to 5 parts of oleic acid based hydroxyethyl imidazoline. The provided SMC normal temperature asphalt can be mixed and paved at a normal temperature, the effect of cold mixing and cold paving can be realized, at the same time, the storage time of the SMC asphalt is prolonged, and the primary stability of the SMC asphalt is very good.

Description

Technical field [0001] Technical Field The present invention belongs to the field of asphalt pavement materials, and in particular relates to a SMC room temperature modified asphalt and a preparation method thereof. Background technique [0002] SMC is a methyl styrene block copolymer (Styreneic Methyl Copolymers) produced from waste plastics and waste tire rubber. The SMC normal temperature asphalt mixture is a new type of asphalt material. It refers to adding SMC modifier to the base asphalt to reduce the mixing temperature of the mixture (can be reduced to 80~120℃), and it can be constructed at room temperature. A kind of asphalt mixture material, generally speaking, it is a warm-mix cold-laid asphalt mixture. Due to the above characteristics, SMC has the advantages of reducing energy consumption and construction at room temperature. However, during the preparation process of the SMC mixture, it is still necessary to heat the asphalt and stones to 80-120℃, and the energy con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/00C08L33/00C08L63/00C08K5/3445C08K5/09
Inventor 李九苏王潇潇沈增晖张毅李杰曾亚兰刘娜
Owner 湖南鑫长胜材料科技有限公司
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