1. AASHTO T 180, 2021. Standard method of test for moisture-density relations of soils using a 4.54-kg (10-lb) rammer and a 457-mm (18-in.) drop.
2. Foamed bitumen: an alternative way of producing asphalt mixtures
3. ARRA, 2017. Recommended mix design guidelines for cold recycling using foamed (expanded) asphalt recycling agent. Asphalt Recycling & Reclaiming Association, 21401.
4. Asphalt Academy, 2009. A guideline for the design and construction of bitumen emulsion and foamed bitumen stabilised materials (TG2). 2nd ed.