Closed-cell virgin expanded polystyrene beads with fine grain-size (Ø 3 - 6 mm), perfectly spherical, controlled density, non-toxic, nonabsorbent, rotproof, dimensionally stable over time, chlorofluorocarbon free production (CFC, HCFC and HFC), free of nutritional values able to sustain growth of fungi and bacteria. During production the beads are mixed with a specific E.I.A. additive which allows a perfect mixing with the water binder, eliminates the bead floating phenomenon and guarantees their homogeneous distribution in the mix.
■ Specific for concrete mixing plants.
■ Bags of 500 L (2 bags for 1 m3 of finished mortar).