Modified mineral aggregate for bituminous pavement and method for producing same

Abstract

The invention discloses a modified ore material and preparing method of asphalt pavement, which is characterized by the following: heating up the ore material in hot cylinder and adding in 0.5-5kg coupler per 1000kg aggregates; putting the above materials in mixture vat to mix for 10-25 minutes; modifying the surface modification. Using coupler to modify the surface modification of main composite materialore material (aggregate, brasque) of asphalt mixture improves the combination property of asphalt mixture. Making the adhesion to change for cementation on the surface between ore material and asphalt improves the binding power and constancy between ore material and asphalt. The invention improves the affinity of ore material and asphalt, which improves the intensity, constancy and durability of asphalt pavement.

Description

technical field

[0001] The invention discloses a modified mineral material for asphalt pavement and also provides a production method thereof, belonging to the technical fields of highway engineering and municipal roads. technical background

[0002] At present, the construction of high-grade highways and municipal roads in my country is developing rapidly, among which asphalt pavement is the main structural form, and problems such as early damage to varying degrees in the early stage of operation have always plagued road builders and become a technical problem that needs to be solved urgently. For this reason, road workers have conducted a lot of research from different angles, but most of them focus on improving the gradation of asphalt mixture (such as SMA), improving the performance of asphalt (such as modified asphalt) or improving the adhesion between mineral aggregates and asphalt. (Adding anti-stripping agent, adding slaked lime), improving engineering quality contro...