Answer

ORC Advanced, a formulation containing calcium oxyhydroxide and calcium hydroxide, has not been known to adversely affect concrete on previous sites. As oxygen is slowly released by the material, the product becomes calcium hydroxide or slaked lime. Ca(OH)2is considered a loose form of cement that is naturally occurring and has been used as a primary component in mortars and plasters. The oxygen release and calcium hydroxide formation is designed to occur over the period of 9-12+ months.