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A kind of high-performance modified emulsified asphalt and its preparation method

An emulsified asphalt, high-performance technology, applied in building components, building insulation materials, buildings, etc., can solve the problems of insufficient high-temperature performance and low-temperature performance of modified emulsified asphalt, achieve high mechanical strength and anti-stripping performance, promote improvement, Good storage stability

Active Publication Date: 2021-05-11
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a high-performance modified emulsified asphalt and its preparation method to solve the technical problem of insufficient high-temperature performance and low-temperature performance of the modified emulsified asphalt in the prior art

Method used

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  • A kind of high-performance modified emulsified asphalt and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0036] This example provides a high-performance modified emulsified asphalt, which is made of the following raw materials: 58 parts of base asphalt, 1.4 parts of modifier, 0.7 parts of adhesion promoting resin LTH, 0.2 parts of auxiliary agent, coupling 0.1 part of emulsifier, 0.2 to 2.5 parts of compound emulsifier, 0.6 part of stabilizer, 0.1 part of thickener, and acid liquid as the balance, and the sum of parts by weight of raw materials is 100 parts.

[0037] in:

[0038] The modifier, in parts by weight, is made of the following raw materials: 12 parts of isocyanate, 57 parts of n-butyl borate, 6 parts of polyvinyl acetal, and 25 parts of barium sulfide.

[0039] The auxiliary agent is made of the following raw materials in parts by weight: 60 parts of black stone mud and 40 parts of sepiolite powder.

[0040] Composite emulsifier, in parts by weight, is made of the following raw materials: cetyltrimethylammonium bromide is 45 parts, cetyl polyethylene glycol is 25 part...

Embodiment 2

[0057] This example provides a high-performance modified emulsified asphalt, which is made of the following raw materials: 60 parts of base asphalt, 2.0 parts of modifier, 0.9 parts of adhesion promoting resin LTH, 0.2 parts of auxiliary agent, coupling The compound emulsifier is 0.1 part, the compound emulsifier is 2.2 parts, the stabilizer is 1.0 part, the thickener is 0.2 part, the balance is an acid solution, and the weight parts of raw materials are 100 parts.

[0058] Wherein: modifying agent is identical with embodiment 1. Auxiliary agent is identical with embodiment 1. Composite emulsifier is identical with embodiment 1. Acid solution is identical with embodiment 1. The base asphalt is the same as in Example 1. Coupling agent is identical with embodiment 1. Stabilizer is identical with embodiment 1.

[0059] The preparation method of the high-performance modified emulsified asphalt of this example is basically the same as that of Example 1.

Embodiment 3

[0061] This example provides a high-performance modified emulsified asphalt, which is made of the following raw materials: 62 parts of base asphalt, 2.0 parts of modifier, 0.5 part of adhesion promoting resin LTH, 0.2 part of auxiliary agent, coupling The compound emulsifier is 0.1 part, the compound emulsifier is 2.0 parts, the stabilizer is 1.4 parts, the thickener is 0.2 part, and the balance is acid liquid, and the weight parts of raw materials are 100 parts.

[0062] Wherein: modifying agent is identical with embodiment 1. Auxiliary agent is identical with embodiment 1. Composite emulsifier is identical with embodiment 1. Acid solution is identical with embodiment 1. The base asphalt is the same as in Example 1. Coupling agent is identical with embodiment 1. Stabilizer is identical with embodiment 1.

[0063] The preparation method of the high-performance modified emulsified asphalt of this example is basically the same as that of Example 1.

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Abstract

The invention provides a high-performance modified emulsified asphalt and its preparation method, which is made of the following raw materials: matrix asphalt, modifier, adhesion promoting resin LTH, auxiliary agent, coupling agent, composite emulsifier, stabilizer, Thickener and acid solution, wherein: the modifier is made of the following raw materials: isocyanate, n-butyl borate, polyvinyl acetal and barium sulfide; the auxiliary agent is made of the following raw materials: Black stone mud and sepiolite powder; the composite emulsifier is made of the following raw materials: cetyl trimethyl ammonium bromide, cetyl polyethylene glycol and stearamidopropyl dimethylamine. The modified emulsified asphalt of the invention has high solid content, high viscosity, good storage stability, excellent high temperature stability and low temperature performance, good comprehensive performance, and has important practical significance and engineering application value.

Description

technical field [0001] The invention relates to the field of building materials, and relates to modified asphalt, in particular to a high-performance modified emulsified asphalt and a preparation method thereof. Background technique [0002] With the rapid development of highway construction in our country, highway traffic is becoming more and more busy, and the load on the road surface is continuously increasing, which puts forward higher and higher requirements for the use and function of pavement materials. The composition and structure of asphalt determine its own performance defects, such as poor temperature sensitivity, easy flow at high temperature, brittle cracking at low temperature, poor elastic recovery and aging resistance, especially in my country's harsh climate conditions, hot summer and severe cold winter , Asphalt pavement rutting, cracks, potholes, cracks and other early damage to the road frequently occur. Ordinary asphalt, ordinary modified asphalt, emuls...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L29/14C08K13/04C08K5/29C08K5/55C08K3/30C08K3/34
CPCC08K2003/3018C08L95/005C08L29/14C08K13/04C08K5/29C08K5/55C08K3/30C08K3/346
Inventor 何锐伍思豫郑睢宁杨哲谈亚文徐紫祎陈华鑫
Owner CHANGAN UNIV
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