... compositions, paints, plastics, packing for shippingl AcousticPlasters, mortars, plaster boards, ceiling tiles & upper wall insulation, highway sound absorbing wallsl HorticulturePlant rooting, seed ... .l Lightweight Aggregate ConstructionLightweight aggregate concrete, tilt-up panels, bricks & tiles, pottery & refractories, non-load bearing fill, tunnel walls & pipe coating ...