Method of making lightweight granules coated with

专利名称：Method of making lightweight granules

coated with cementitious material

发明人：Laszlo Kovacs申请号：US07/911241申请日：19920622公开号：US05308396A公开日：19940503

摘要：In producing an additive for a building material, lightweight granules (e.g.,polystyrene beads) are first coated with a waterproof adhesive by mixing in a suitablemixer. When the granules are satisfactorily coated, they are further coated with a wetcementitious material, for example aggregate and wet cement, or with wet plaster, whichis added to the mixture. Only sufficient moisture is added to allow the cement or plasterto initiate the chemical reaction which results in the curing of the coating material on thegranules. The wet material acts to separate the granules while forming a coating thereon.The granules are then removed from the mixture and allowed to dry and set. The drygranules may then be added to a conventional concrete or plaster mix.

申请人：MAZEDAWN LIMITED

代理机构：Bacon & Thomas

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