METHOD FOR PRODUCING LIGHTWEIGHT AGGREGATES, ADHESIVE COMPOSITION FOR IMPLEMENTING SAME, AND AGGREGATES THEREBY OBTAINED

摘要

An adhesive substance, consisting of a mixture of latex and an acidic aqueous bitumen emulsion, is applied on the surface of expanded polystyrene bodies, whereafter the bodies thereby coated with the adhesive substance are stirred into sand or a sand/cement mixture. The resulting aggregates have a relative density of 0.085 - 0.225 and consist of composite pellets each having a central expanded polystyrene portion at least partially coated with sand or sand and cement. These aggregates are suitable for the industrial manufacture of lightweight concrete in high-capacity installations such as concrete mixing plants.