Department of Army, New England District, Corps of Engineers, 696 Virginia Road, Concord, Massachusetts 01742-2751

99 -- BRIDGE DECK WATERPROOF MEMBRANE SOL WATERPROOF01 POC Michael Walsh, 978-318-8586 E-MAIL: Contracting Officer, Michelle.A.Kewer@usace.army.mil. Waterproof sheet membrane shall be of the 'Welded By Torch' type, specifically manufactured for application on concrete bridge decks. The manufacturer shall have a minimum of 10 years experience in waterproofing bridge decks, and the product shall have a proven track record in applications with a 6% grade and breaking traffic. Adhesion to the substrate shall be a minimum of 60 psi. The waterproof sheet membrane system shall consist of: An adhesive primer, a non-woven polyester reinforcement fabric which is saturated and coated with a Styrene Butadiene Styrene (SBS) modified bitumen. An aggregate surface, and an adhesive primer to improve bond to the asphalt wearing surface. The product shall meet the minimum requirements of ASTM D 6164, Grade G, Type II. The product manufacturer shall provide a self contained, self propelled machine that welds the membrane to the concrete substrate in a consistent manner, providing a uniform high strength bond. The manufacturer shall provide quality control for field application of the product, and shall be capable of repairing any blisters in the membrane either before or after the asphalt wearing surface is applied. Products similar or equal to "Sopralene Flam Antirock" as manufactured by Soprema USA, Wadsworth, OH, will be evaluated for acceptability. Firms should provide sufficient information for evaluation of their product and its ability to meet the above stated criteria. This information should be furnished no later than 5 November 1999. Posted 10/13/99 (W-SN391343). (0286)

Loren Data Corp. http://www.ld.com (SYN# 0271 19991015\99-0007.SOL)