Application of industrial and biopolymers waste to stabilise the subsoil of road surfaces

Abstract

Recycling has been the fundamental idea in the development of new technologies during the recent years. Phosphogypsum is a waste material obtained from the process of phosphoric acid production. Its main component is calcium sulphate (65–75 wt%). The other material in such studies is fly ash. They are obtained as waste in power plants where pulverised coal and brown coal are burnt. Its potential for processing and application as a raw material for stabilisation of road surfaces is demonstrated. Another used waste in the studies was a biopolymers waste. These are epoxy resin based wastes and filler in the form of starch or cellulose (20% wt.). The studies indicated that the use of so-called mixing water that had undergone magnetic treatment in constant magnetic field with a magnetic induction of B = 1 T improved some parameters of appropriately selected building composites of different compositions.

Keywords:

• phosphogypsum
• fly ash
• biopolymers
• constant magnetic field
• road surface

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by University of Lodz.