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Aging-resistant, high-viscosity and high-elasticity modified asphalt and preparation method thereof

A modified asphalt, anti-aging technology, used in building components, building insulation materials, buildings and other directions, can solve the problems of cracks, asphalt high-elasticity modification without improvement, etc., to achieve increased asphalt structural strength, high structural strength, extended use effect of life

Pending Publication Date: 2020-09-18
王振才
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although SBS modified asphalt solves the problem of weather resistance, it does not improve the high elastic modification of asphalt itself, and SBS asphalt may still have cracks at high temperatures

Method used

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  • Aging-resistant, high-viscosity and high-elasticity modified asphalt and preparation method thereof

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preparation example Construction

[0048]A preparation method of aging-resistant high-viscosity and high-elasticity modified asphalt, said method comprising the steps of:

[0049] S1. Preparation of the first component, heating the asphalt to 170-190°C through a heat exchanger, and transferring it to a stirring production tank;

[0050] S2, preparation of the second component, according to the weight ratio of 1:1:1, take thermoplastic polyurethane elastic particles with a particle size of 5-8mm, polyolefin particles and adhesive; brush the bottom of the square container with a layer of adhesive , then spread the polyolefin particles on the adhesive, and then brush a layer of adhesive on the surface of the polyolefin particles, and then spread the thermoplastic polyurethane elastic particles on the top of the polyolefin particles, and take them out after curing. Shake the particles in a way to divide them into smaller particle clusters; finally put the remaining binder and particle clusters into a stirring conta...

Embodiment 1

[0056] According to parts by weight, the first component of 90 parts by weight is prepared. The specific method is to get 89.9 parts of asphalt and 0.1 part of ultraviolet absorber and dispersant, mix asphalt, ultraviolet absorber and dispersant, and then heat The exchanger is heated to 170°C and transferred to the stirred production tank. According to parts by weight, prepare the second component of 3 parts by weight, get thermoplastic polyurethane elastic particles, polypropylene and Fischer-Tropsch hard wax whose particle diameter is 5mm according to the weight ratio of 1:1:1; First brush a layer of Fischer-Tropsch hard wax on the bottom of the container, then spread the polypropylene on the Fischer-Tropsch hard wax, then brush a layer of Fischer-Tropsch hard wax on the upper surface of the polypropylene, and then spread the thermoplastic polyurethane elastic particles on the The upper part of polypropylene, after being cured, take out and shake the particles by physical sh...

Embodiment 2

[0058] According to parts by weight, the first component of 90-98 parts by weight is prepared. The specific method is to take 91.9 parts of asphalt and 0.1 part of ultraviolet absorber and dispersant, mix asphalt, ultraviolet absorber and dispersant, and then After being heated to 180°C by a heat exchanger, it is transferred to a stirring production tank. According to parts by weight, prepare the second component of 4 parts by weight, according to the weight ratio of 1:1:1, get thermoplastic polyurethane elastic particles, ethylene copolymer and natural rubber with a particle diameter of 6mm; place the bottom of the square container First brush a layer of natural rubber, then spread the ethylene copolymer on the natural rubber, then brush a layer of natural rubber on the surface of the ethylene copolymer, then spread the thermoplastic polyurethane elastic particles on the upper part of the ethylene copolymer, take it out after curing The particles are shaken by physical shakin...

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Abstract

The invention relates to an aging-resistant, high-viscosity and high-elasticity modified asphalt. The modified asphalt comprises: a first component, wherein the first component is asphalt; a second component which is composed of elastic particles in a particle state and a binder; and a third component, wherein the third component is a filamentous carbon fiber, the second component is uniformly dispersed into the first component, and the third component is distributed in the first component in a net-shaped staggered manner. The asphalt is modified with the elastic particles and the carbon fiber, so that the asphalt is modified to have the characteristics of aging resistance, high viscosity and high elasticity.

Description

technical field [0001] The invention relates to an asphalt material, in particular to an aging-resistant high-viscosity and high-elasticity modified asphalt and a preparation method thereof. Background technique [0002] Bitumen is a viscous, black and highly viscous liquid or semisolid found in most crude oils and some natural sediments. Bitumen can also be obtained by refining, mostly as a carefully refined residue from the breakdown of selected crude oils. [0003] Asphalt binder is a key material for pavement, roofing and waterproofing applications. The main use of asphalt in my country is in road construction. The most common type of flexible pavement pavement in my country is hot mix asphalt. [0004] Due to its physical properties, asphalt generally cannot be used directly and needs to be modified. Modified asphalt is the addition of external additives (modifiers) such as rubber, resin, high molecular polymer, ground rubber powder or other fillers, or taking measure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L75/04C08L23/12C08L91/06C08K7/06C08L23/08C08L7/00C08L23/14C08L21/00
CPCC08L95/00C08L2205/035C08L2201/08C08L75/04C08L23/12C08L91/06C08K7/06C08L23/08C08L7/00C08L23/14C08L21/00
Inventor 王振才
Owner 王振才
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