Modified asphalt

Abstract

The invention discloses a modified asphalt which comprises the following components by weight: 100 parts of asphalt and 4-6 parts of fly ash fiber cotton balls, wherein the fly ash fiber cotton balls take the fly ash as the main raw materials. After the raw material formed by the auxiliary materials including dolomite and slag is melted, the melted raw material is guided into a centrifugal machine and stretched to form fiber, a binding agent and a dustproof oil are sprayed onto the surface of the fiber at the same time, the fiber is blown into a cotton collecting machine to form a primary cotton felt, and the primary cotton felt is fed into a granulating machine and cut to obtain the modified asphalt. The performance of the asphalt is improved effectively, the modified asphalt is suitable for laying the road surface and has long service life, the subsequent maintenance cost is reduced due to the adoption of the modified asphalt, the waste resources are reused because the fly ash is used as the raw material of the fiber cotton balls, and the problems on resource scarcity and environmental protection are solved effectively.

Description

technical field [0001] The invention relates to a modified asphalt. Background technique [0002] Asphalt pavements generally consist of bitumen and aggregates. Oxidation of the bituminous binder during its use, climatic conditions and use of the pavement, especially with heavy loads, lead to degradation of the pavement over time. However, the high wax content of asphalt makes the pavement paved with asphalt easy to soften at high temperature, resulting in stacking, water permeation, formation of reflective cracks, deformation of the road surface, etc., which seriously damage the road surface, so a lot of road maintenance costs have to be invested. A variety of methods for modifying asphalt have been proposed in the prior art, but many types of modifiers are used and the cost is high. Contents of the invention [0003] The purpose of the present invention is to provide a modified asphalt with high reliability and long service life. [0004] In order to realize the above...

AI Technical Summary

Problems solved by technology

However, the high wax content of asphalt makes the pavement paved with asphalt easy to soften at high temperature, resulting in stacking, water permeation, formation of reflective cracks, deformation of the road surface, etc., which seriously damages the road surface, so a lot of road maintenance costs have to be invested

Various methods of modifying asphalt have been proposed in the prior art, but there are many types of modifiers used and the cost is high