Composite fiber material used in mixed asphalt material

Abstract

The invention discloses a composite fiber material used in a mixed asphalt material. The composite fiber material is prepared by mixing and uniformly stirring the following raw materials in percentage by weight: 48-53% of cellulose fiber, 30-34% of basalt fiber and 16-20% of sepiolite fiber. The composite fiber material disclosed by the invention is prepared by mixing and uniformly stirring three different fiber materials according to a ratio, the improvement effect on pavement properties of single fiber materials in the mixed asphalt material can be carried into the composite fiber materials, the composite fiber material which can comprehensively improve the pavement property of the mixed asphalt material is developed, and compared with the mixed asphalt material which is modified by using single fiber, the composite fiber material is capable of comprehensively improving various pavement properties of a road asphalt surface layer, and is high in cost performance.

Description

Technical field [0001] The invention belongs to the technical field of pavement asphalt materials, and specifically relates to a composite fiber material for asphalt mixtures. Background technique [0002] With the rapid development of modern economy, the traffic density on the road has increased year by year, the axle load has become heavier, and the channelized traffic has become more obvious. These all put forward higher requirements on the road performance of the road asphalt surface. In order to improve the road performance of the road asphalt surface to meet the needs of road use, people have studied a variety of measures after years of exploration. Fiber has been a very eye-catching new asphalt mixture additive and Stabilizers have been widely used in some modified asphalt mixtures and ordinary asphalt mixtures due to their excellent performance and simple construction. [0003] With more and more types of fiber products, fiber materials are more and more widely used in pav...

AI Technical Summary

Problems solved by technology

In the prior art, a single fiber is often added to the asphalt mixture as a modifier to prepare a fiber-modified asphalt mixture with better road performance. Although each road fiber has its own advantages, each fiber has an The improvement effect of asphalt mixture pavement performance is relatively simple, and the improvement effect of asphalt mixture pavement performance by using a single road fiber as a modifier is relatively limited.

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