Selection and characteristics of asphalt pavement base material

The choice of pavement base material has a vital influence on the quality and service life of pavement. This paper will introduce the selection principle and application scope of pavement base materials to help readers better understand the characteristics of pavement base materials.

Subbase material

Lime soil, lime-fly ash soil, cement soil and other materials can not be used as the base material of advanced pavement, but can be used as the subbase. These materials have poor strength and stability, so they are not suitable as base materials for advanced pavements.

Industrial waste residue mixture

Industrial waste residue mixture has good strength, stability and integrity, and is suitable for most asphalt pavement bases. The material not only has high strength and good stability, but also can effectively utilize industrial waste residue resources and has good environmental protection benefits.

Gravel and crushed stone materials

Gravel and crushed stone materials can be used as the base of advanced pavement. These materials have high strength and stability, and can meet the use requirements of advanced pavements. However, it should be noted that the selection and use of these materials need to be reasonably matched and constructed according to specific conditions.