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Stabilizer for rubber asphalt and method for modifying rubber asphalt

A rubber asphalt and stabilizer technology, which is applied in the field of rubber asphalt stabilizers and rubber asphalt modification, can solve the problems of poor dispersion performance, achieve good stability, increase steric hindrance, increase dispersion and stability Effect

Active Publication Date: 2019-07-26
日照科施佳沥青有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a stabilizer for asphalt rubber and a modification method for asphalt rubber, which solves the problem of poor dispersion between materials in the existing asphalt rubber production technology, thereby improving the storage stability and high temperature resistance of asphalt rubber Performance, making the product quality overall improvement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A stabilizer for rubber asphalt, made of the following raw material components by weight: 20 parts of sodium linoleate, 15 parts of sodium polyacrylate, 15 parts of sodium silicate and 15 parts of sodium gluconate, using the rubber asphalt The method for modifying rubber asphalt with a stabilizer is specifically implemented according to the following steps:

[0022] S1, each component is weighed according to the following parts by weight: 80 parts of asphalt, 18 parts of rubber powder, and 1 part of stabilizer;

[0023] Wherein the stabilizer is formed by mixing the following raw material components in parts by weight: 20 parts of sodium linoleate, 15 parts of sodium polyacrylate, 15 parts of sodium silicate and 15 parts of sodium gluconate;

[0024] S2, the rubber powder weighed in S1 (the rubber powder is made from waste tires by a conventional method) and half the mass of the stabilizer are mixed uniformly at 40°C to obtain a rubber powder mixture;

[0025] S3, set ...

Embodiment 2

[0027] A stabilizer for rubber asphalt, made of the following raw material components by weight: 15 parts of sodium linoleate, 20 parts of sodium polyacrylate, 10 parts of sodium silicate and 20 parts of sodium gluconate, using the rubber asphalt The method for modifying rubber asphalt with a stabilizer is specifically implemented according to the following steps:

[0028] S1, each component is weighed by the following parts by weight: 70 parts of asphalt, 20 parts of rubber powder, 2 parts of stabilizer;

[0029] Wherein the stabilizer is formed by mixing the following raw material components in parts by weight: 15 parts of sodium linoleate, 20 parts of sodium polyacrylate, 10 parts of sodium silicate and 20 parts of sodium gluconate;

[0030] S2, the rubber powder weighed in S1 (the rubber powder is made from waste tires by a conventional method) and half the mass of the stabilizer are mixed uniformly at 40°C to obtain a rubber powder mixture;

[0031] S3, set the temperatu...

Embodiment 3

[0033] A stabilizer for rubber asphalt, made of the following raw material components by weight: 25 parts of sodium linoleate, 10 parts of sodium polyacrylate, 20 parts of sodium silicate and 10 parts of sodium gluconate, using the rubber asphalt The method for modifying rubber asphalt with a stabilizer is specifically implemented according to the following steps:

[0034] S1, each component is weighed by the following parts by weight: 90 parts of asphalt, 15 parts of rubber powder, 1.5 parts of stabilizer;

[0035] Wherein the stabilizer is formed by mixing the following raw material components in parts by weight: 25 parts of sodium linoleate, 10 parts of sodium polyacrylate, 20 parts of sodium silicate and 10 parts of sodium gluconate;

[0036] S2, the rubber powder weighed in S1 (the rubber powder is made from waste tires by a conventional method) and half the mass of the stabilizer are mixed uniformly at 40°C to obtain a rubber powder mixture;

[0037] S3, set the tempera...

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Abstract

The invention belongs to the technical field of rubber asphalt pavement materials and discloses a stabilizer for rubber asphalt and a modification method of the rubber asphalt. The stabilizer for the rubber asphalt is prepared from the following raw material components in parts by weight: 15 to 25 parts of sodium soyate, 10 to 20 parts of sodium polyacrylate, 10 to 20 parts of sodium silicate and 10 to 20 parts of sodium gluconate. The sodium soyate, the sodium polyacrylate, the sodium silicate and the sodium gluconate serve as the raw materials of the stabilizer for the rubber asphalt for the first time, so that a thickening effect is achieved, the steric hindrance among the components of the rubber modified asphalt is enlarged, and the dispersity and the stability of the rubber power in the asphalt are improved.

Description

technical field [0001] The invention belongs to the technical field of rubber asphalt pavement materials, and in particular relates to a stabilizer for rubber asphalt and a modification method for rubber asphalt. Background technique [0002] Rubber asphalt is a new type of high-quality composite material. Under the combined action of matrix asphalt, waste tire rubber powder and admixtures, the rubber powder absorbs various organic substances such as resins and hydrocarbons in the asphalt, and undergoes a series of physical processes. and chemical changes, taking into account the viscosity, toughness, and elasticity of rubber and asphalt, thereby improving the road performance of rubber asphalt. On the other hand, waste tires are used in the preparation of rubber asphalt, which reduces environmental pollution and can effectively reduce asphalt The cost of pavement materials, so its use prospects are considerable. [0003] The pavement paved with rubber asphalt has the follo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/02C08K5/098C08K3/34C08L95/00C08L21/00
CPCC08K3/34C08K5/098C08K2201/014C08L95/00C08L2201/08C08L2205/03C08L33/02C08L21/00
Inventor 常明丰熊锐郑彬辉胡子杰徐晟淮曹晓涵宿春海
Owner 日照科施佳沥青有限公司