Bituminous mixture mineral fiber composite granules for roads and preparation method thereof

Abstract

The invention relates to the field of preparation of bituminous pavement materials for roads, and discloses bituminous mixture mineral fiber composite granules for roads and a preparation method thereof. The composite granules comprise the following raw materials in percentage by weight: 88 to 92 percent of brucite ore, 3.5 percent of heavy oil, 1.5 to 2 percent of aromatic oil, 0 to 4.5 percent of silicon oil and 3 to 5 percent of bentonite. The preparation method comprises the following steps of: weighing the raw materials according to a proportion, putting the raw materials into a stirrer and stirring the raw materials, then standing the raw materials for 10 to 20 minutes in a mute barrel, and finally, rotationally extruding the raw materials into the fiber composite granules with the diameter of 2 to 4 millimeters and the length of 1 to 3 centimeters by using a granulator.

Description

technical field [0001] The invention relates to the field of preparation of road asphalt pavement materials, in particular to a road asphalt mixture mineral fiber composite particle and a preparation method thereof. Background technique [0002] With the continuous and rapid development of my country's economy, the traffic volume is increasing day by day, heavy and overloaded vehicles are very common, and channelized traffic is obvious. Therefore, higher requirements are put forward for the high and low temperature performance of asphalt pavement. In order to prolong the service life of asphalt pavement, improve the service quality of the pavement, and reduce the maintenance cost, it is imperative to adopt effective modification and enhancement methods and means to improve the service quality of asphalt mixture. Among them, the asphalt mixture is modified with fibers, and the fibers play a good role in reinforcement and bridging, taking into account the high and low tempera...

AI Technical Summary

Problems solved by technology

Lignin fiber is a kind of road engineering material obtained by compounding natural wood fiber as the main raw material and adding a certain quality of non-metallic ultrafine mineral powder. It is also widely used, but the production of lignin fiber requires a large amount of wood And other plant raw materials, the production process will also cause a certain degree of pollution to the environment, which is not conducive to environmental protection