Lithocrete Book - Volume 1 | Page 37

GLASS LITHOCRETE Due to the fact that its primary ingredient is recycled glass, as well as its other inherent resource conserving characteristics, glass Lithocrete® is considered under LEED (Leadership in Energy & Environmental Design) to be a sustainable material suitable for “green” building. As such, Lithocrete’s® heat fractured glass aggregate product line is ideal for projects that are required to use recycled materials. Recycled glass provides a wide range of colors not typically found with other paving materials, such as bright blues, yellows and reds. None of the glass aggregate colors will fade under sunlight; they naturally reflect light and have less heat absorption. Sea shells and other natural materials can give a project a natural appearance and textures, or as displayed at the Constellation Place/MGM headquarters buildings in Century City, a uniform surface with a blend of coral sand and seashells. Previously, Lithocrete® glass in concrete was an unsuitable material due to ASR, in which the alkali in cement paste would react with the silica in glass to produce harmful expansion. Replacing as little as 10% of natural stone aggregate with clear glass produces a 14-day tested expansion that is twice the limit of 0.1% of A.S.T.M. C 1260 test. Lithocrete’s® patented product includes two specific procedures that combat ASR and enable recycled, heat fractured glass to be used in concrete. 36 Rosso Nero Lithocrete® with beige integral color, white cement concrete, Guscio shell Lithocrete®, cobalt blue glass Lithocrete® and cast in place walls. Lithocrete_book_trademark_edited.indd 36 1/2/2008 8:23:26 AM