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A kind of modified asphalt and preparation method thereof

A modified asphalt and modification technology, which is applied in the field of modified asphalt and its preparation, can solve the problems that the waterproof performance of waterproof coating needs to be improved, and achieve the effect of plasticity improvement and remarkable effect

Active Publication Date: 2020-06-02
重庆市盛百利防水建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned modified asphalt still has defects in industrial application. Using this asphalt as a raw material to prepare waterproof coatings, the waterproof performance of the prepared waterproof coatings still needs to be improved.

Method used

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  • A kind of modified asphalt and preparation method thereof
  • A kind of modified asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A modified asphalt, comprising the following raw materials in parts by mass: 300 parts of emulsified asphalt, 300 parts of modified emulsion, 1.2 parts of defoamer and 1.2 parts of bactericide. The modified emulsion includes the following raw materials in parts by mass: 620 parts of deionized water, 63 parts of composite emulsifier, 310 parts of butyl acrylate, 7 parts of acrylic acid, 100 parts of methyl methacrylate, 270 parts of styrene, 82 parts Initiator solution. The compound emulsifier includes 23 parts of emulsifier OP-10 and 40 parts of SDS. The initiator solution included 75 parts deionized water and 1.3 parts ammonium persulfate.

[0030] A preparation method of modified asphalt, comprising the following steps:

[0031] (1) prepare emulsified asphalt;

[0032] A. After dehydrating, heating, and filtering out impurities, No. 70 bitumen is pumped into an asphalt constant temperature kettle, and then added butanol, stirred and mixed, and the temperature is ke...

Embodiment 2

[0044] A modified asphalt, including the following raw materials in parts by mass: 305 parts of emulsified asphalt, 298 parts of modified emulsion, 1 part of defoamer and 1.2 parts of bactericide; the modified emulsion includes raw materials in the following parts by mass: 650 parts Parts of deionized water, 65 parts of complex emulsifier, 300 parts of butyl acrylate, 8 parts of acrylic acid, 98 parts of methyl methacrylate, 272 parts of styrene, and 80 parts of initiator solution. The compound emulsifier includes 22 parts of emulsifier OP-10 and 43 parts of SDS. The initiator solution included 78 parts deionized water and 1.2 parts ammonium persulfate.

[0045] A preparation method of modified asphalt, comprising the following steps:

[0046] (1) prepare emulsified asphalt;

[0047] A. After dehydrating, heating, and filtering out impurities, No. 70 asphalt is pumped into the asphalt constant temperature kettle, then added butanol, stirred and mixed, and the temperature is ...

Embodiment 3

[0059] A modified asphalt, including the following raw materials in parts by mass: 308 parts of emulsified asphalt, 293 parts of modified emulsion, 1.2 parts of defoamer and 1 part of bactericide. The modified emulsion includes the following raw materials in parts by mass: 640 parts of deionized water, 63 parts of composite emulsifier, 310 parts of butyl acrylate, 7 parts of acrylic acid, 100 parts of methyl methacrylate, 270 parts of styrene, 82 parts Initiator solution. The compound emulsifier includes 25 parts of emulsifier OP-10 and 43 parts of SDS. The initiator solution included 75 parts deionized water and 1.3 parts ammonium persulfate.

[0060] A preparation method of modified asphalt, comprising the following steps:

[0061] (1) prepare emulsified asphalt;

[0062] A. After dehydrating, heating, and filtering out impurities, No. 70 bitumen is pumped into an asphalt constant temperature kettle, and then added butanol, stirred and mixed, and the temperature is kept a...

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Abstract

The invention belongs to the technical field of asphalt processing, and specifically discloses modified asphalt and a preparation method thereof. The modified asphalt comprises the following raw materials in parts by mass: 290 to 310 parts of emulsified asphalt, 290 to 310 parts of modified emulsion, 0.8-1.5 parts of a defoamer and 0.8 to 1.5 parts of a bactericide; the modified emulsion includesthe following raw materials in parts by mass: 600-650 parts of deionized water, 58-68 parts of a composite emulsifier, 300-320 parts of butyl acrylate, 6 to 10 parts of acrylic acid, 95 to 105 parts of methyl methacrylate, 260 to 280 parts of styrene, and 80 to 85 parts of an initiator solution. The preparation method of the modified asphalt comprises the following steps: (1) preparing the emulsified asphalt; (2) preparing the modified emulsion; (3) adding the emulsified asphalt and the modified emulsion to a reaction vessel, and stirring uniformly; (4) adding the defoamer and the bactericideinto the reaction vessel; and (5) continuing stirring for 18 to 28 minutes. The modified asphalt produced by the method has good performances such as water repellency and temperature stability.

Description

technical field [0001] The invention belongs to the technical field of asphalt processing, in particular to a modified asphalt and a preparation method thereof. Background technique [0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid. It is liquid and has a black surface. It is soluble in carbon disulfide. organic gelling materials. [0003] With the development of road, bridge and construction engineering, asphalt is widely used in road and bridge engineering and waterproofing because of its excellent waterproof and cohesive properties. Water-emulsified asphalt waterproof coating is an oil-in-water emulsion formed by dispersing asphalt in water through high-shear mechanical force under the action of an emulsifier after hot-melting asphalt. This kind of emulsified asphalt obtained only by asphalt emulsification cannot be used alone as a wat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L33/08C08K9/00C08K3/34C08J3/03C08F222/18C08F220/06C08F220/14C08F212/08
CPCC08F220/18C08F220/1804C08J3/03C08J2395/00C08J2483/04C08L33/08C08L95/005C08K9/00C08K3/346C08F212/08C08F220/14C08F220/06
Inventor 尹袖风
Owner 重庆市盛百利防水建材有限公司