680.1 680.2(f)
680.1DESCRIPTION —This work is the furnishing and placing of adhesive preformed membrane
waterproofing systems to concrete or other surfaces as indicated.
680.2MATERIAL —Unless specified or shown on the plans, select from the waterproofing systems listed
in Bulletin 15.
Tapes. As recommended for use with the respective preformed membrane sheet materials. Contact the membrane manufacturer or its representative for instructions.
Sheet consisting of a sheet of rubberized asp halt or polymer modified asphalt permanently applied to a polyethylene film, or reinforced with a stitch -bonded polyester/polypropylene fabric, or reinforced with a fiberglass mesh and conforming to the minimum requirements specified in Table A.
without mica coating, or approved equal that furnishes equivalent protection to the membrane from being cut, scratched, or otherwise damaged from the backfill or equipment. For brid ge deck surfaces, the asphalt overlay is the protective cover.
Representative is present during every phase of application, unless applied by a factory trained licensed installer, as indicated by written approval from the material supplier. The Manufacturer’s Technical Representative will provide training and technical assistance on surface preparation, equipment, mixing of components, type, and method of application, and finish.
on the membranes or containers with the manufacturer’s name, membrane trade name, lot number, and material quantity.
TABLE A Adhesive -Backed Preformed Membrane Sheet Minimum Requirements Preformed Membrane Sheets For Bridge Deck Surfaces For Surfaces Other Than Bridge Decks Property Test Rubberized Asphalt Type Modified Asphalt Type Rubberized Asphalt Type Modified Asphalt Type Tensile Strength, lbs/in (minimum)(1)(3) ASTM D882 (2) 50 40 20 20 % Elongation at Break, (min) (3)(4) ASTM D882 (2) 15 10 25 25 7(7) Pliability ASTM D146 (5) No cracks No cracks No cracks No cracks Thickness, mils (minimum)(6) ASTM D1000 Polyethylene Film Backed — 60 Fabric Reinforced Backed —65 70 60 60 680.2(f) 680.3(d)
D36 190 210 190 210 Permeance, perms
E96, Method B 0.1 0.1 0.1 0.1 Punct