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Compound modified asphalt and preparation method thereof

A technology of compound modified asphalt and asphalt, which is applied in building components, building insulation materials, buildings, etc., to achieve the effect of shortening the preparation period, long service life and good high temperature stability

Inactive Publication Date: 2015-11-04
丁德凤
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AI Technical Summary

Problems solved by technology

With the rapid development of my country's smelting industry and iron and steel industry, the smelting industry has higher and higher requirements for carbon products, and ordinary medium-temperature asphalt can no longer meet its needs due to the difference in its index performance.

Method used

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Effect test

Embodiment 1

[0016] A composite modified asphalt, the composite modified asphalt is made of the following raw materials in parts by weight: 100 parts of asphalt, 10 parts of SBS, 4 parts of rubber powder, 4 parts of furfural extraction oil, 3 parts of activator, 3 parts of stabilizer share.

[0017] A preparation method of composite modified asphalt, comprising the steps of:

[0018] (1) Heat a part of asphalt to 130°C, then add 2% SBS and predetermined metered furfural extraction oil into the hot asphalt to tell shear dispersion;

[0019] (2) Add 15% rubber powder and a predetermined metered activator to another part of asphalt, and swell at a temperature of 180°C for 100 minutes;

[0020] (3) Disperse the pre-dispersed SBS and swollen rubber powder at 180°C for 65 minutes under high-speed shear;

[0021] (4) Add a stabilizer and develop for 35 minutes under low-speed shearing.

[0022] Based on the above, the present invention is prepared from asphalt, SBS, rubber powder, furfural ext...

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Abstract

The invention discloses a preparation method of compound modified asphalt and relates to the technical field of chemical engineering. The compound modified asphalt is prepared from, by weight, 90-110 parts of asphalt, 10 parts of SBS, 4-5 parts of rubber powder, 4-5 parts of furfural extract oil, 3-4 parts of activator and 3-4 parts of stabilizer. The compound modified asphalt is prepared from asphalt, SBS, rubber powder and furfural extract oil, and the ratio of all the components is optimized, so that the prepared compound modified asphalt is good in high-temperature stability, high in low-temperature anti-cracking performance, excellent in ageing resistance and long in service life. All technological parameters are optimized in the preparation process, production efficiency is improved, and the preparation period is shortened.

Description

technical field [0001] The invention relates to the technical field of chemical engineering, in particular to a composite modified asphalt and a preparation method thereof. Background technique [0002] In civil engineering, asphalt is a widely used waterproof material and anti-corrosion material. It is mainly used in the waterproofing of roofs, grounds and underground structures, and the anti-corrosion of wood and steel. Asphalt is also widely used as cementing material for pavement structure in road engineering. It can be used in proportion to build asphalt pavement with different structures after it is mixed with mineral materials of different compositions. It is widely used in expressways. With the rapid development of my country's smelting industry and iron and steel industry, the smelting industry has higher and higher requirements for carbon products, and ordinary medium-temperature pitch can no longer meet its needs due to the difference in its index performance. Th...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L53/02C08L21/00C08L91/00
Inventor 丁德凤
Owner 丁德凤
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