This meeting has been a rare opportunity to bring together experts from the manufacturers and providers of aggregates from waste, bi-product, and specifically manufactured processes. The speakers will cover the sourcing, manufacture, properties and end uses of a broad range of available aggregates including furnace bottom ashes, incinerator ashes, expanded clays, exfoliated slate, sintered fly ash, and glass plus there will be one presentation on the UK development of a structural lightweight glass product.