Products are thus built up by progressively adding material, one layer at a time: hence the technology's other name, additive manufacturing.

The polyester fiber, as one of the high test addition materials in asphalt mixture, has been widely used in the asphalt pavement construction.

Due to the high organic content of dredged soil, its ability to adsorb various contaminants such as heavy metals warranted an investigation of its use in clay liner of landfill.