3757.1SCOPE
Provide a membrane waterproofing system to be used for waterproofing below -grade joints in concrete Structures, tunnels, and other below grade applications on concreteS tructures.
3757.2REQUIREMENTS
Provide a membrane waterproofing system meeting the following requirements:
carrier film, a pointing mastic, and a protection course A Primer Provide a solvent-based primer meeting the requirements of Federal and Minnesota Pollution Control Agency VOC regulations and specially formulated for use with the waterproofing system being used. B Membrane Provide waterproofing system with a membrane meeting the requirements of Table 3757.2-1:
Table 3757.2-1 Waterproofing Membrane Requirements Property Specification Test Method Thickness ≥ 56 mil ASTM D3767*,Method A Tensile strength ≥ 250 psi ASTM D412ǁ, Die C Elongation ≥ 300 percent ASTM D412ǁ, Die C Composition Rubber asphalt Infrared scan * ASTM D3767, Standard Practice for Rubber-Measurement of Dimensions ǁ ASTM D412, Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers-Tension C Carrier Film Provide membrane waterproofing system with carrier film meeting the requirements of Table 3757.2-2: Table 3757.2-2 Waterproofing Carrier Film Requirements Property Specification Test Method Thickness ≥ 4 mil ASTM D3767, Method A Composition Polyethylene Infrared scan D Composite Membrane Provide membrane waterproofing system with a composite membrane meeting the requirements of Table 3757.2-3: Table 3757.2-3 Waterproofing Composite Membrane Requirements Property Specification Test Method Pliability, 180° bend, 1 inch mandrel at −25°F Unaffected ASTM D146* Permeance < 0.05 Perms ASTM E96ǁ, Method B Peel adhesion ≥ 5 pounds/inch ASTM D903 Modified† Water absorption −0.1 percent, 72 hours ASTM D1970‡ * ASTM D146, Standard Test Methods for Sampling and Testing Bitumen-Saturated Felts and Woven Fabrics for Roofing and Waterproofing ǁ ASTM E96, Standard Test Methods for Water Vapor Transmission of Materials † ASTM D903, Standard Test Method for Peel or Stripping Strength of Adhesive Bonds , Modified: 90 percent peel after 7 Calendar Days at 70°F, plus 7 Calendar Days at 120°F, plus 7 Calendar Days at 70°F (dry) (wet). The 180° peel strength is run at a rate of 12 inches per minute. ‡ ASTM D1970, Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection
3757.3SAMPLING AND TESTING
Provide samples in rates and sizes meeting the requirements of the Schedule of Materials Control, or as required by the Contract. The Materials Engineer, may perform tests on samples taken from the product proposed for use or on samples submitted and certified by the manufacturer as representative of the membrane waterproofing system to be supplied.
Get an email when 3757 changes
Minnesota revises spec sections through supplementals and new editions. We check this one every week and email you the day it changes. Free, no account.