Abstract
In order to make effective use of fly ash and waste polystyrene to develop new energy-saving wall construction materials, we take lime and gypsum as fly ash activator, use waste polystyrene (EPS) as the insulation component to prepare block materials, study the block material distribution optimization ratio, and analyse the hydration mechanism and insulation of block materials. The results show that the lime ratio is 10%, gypsum ratio is 5%, and the amount of fly ash is 20% ~ 25%. When the modified EPS is 2.5%, the thermal conductivity coefficient of block materials is 0.505W/ (m.K), excellent in insulation.
