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CITY OF EVERETT WEST MARINE VIEW DRIVE/ALVERSON AND 41 ST ST/GRAND AVE <br />PEDESTRIAN IMPROVEMENTS <br />STATE FUND# HLP-PB15(032) <br />WO #3630 July 25, 2024 <br />127 <br />1 8-26.2(7) Bond Breaker Geotextile <br />2 <br />3 Bond breaker geotextile: A material placed between the top course of the cement <br />4 concrete modular block unit retaining wall and the sidewalk concrete to prevent or limit <br />5 bond between the concrete pavement and the base material. <br />6 <br />7 Bond Breaker Geotextile filter fabric shall conform to the following table: <br />8 <br />Property Requirements Test method <br />Geotextile type Nonwoven, needle-punched <br />geotextile, no thermal <br />treatment (calendaring or IR) <br />EN 13249, Annex F <br />(Manufacturer <br />certification of <br />production) <br />Mass per unit area f 450 g/m† (13.3 oz/yd2) <br />h 550 g/m† (16.2 oz/yd2) <br />ISO 9864 (ASTM D <br />5261) <br />Thickness under load <br />(pressure) <br />a. At 2 kPa (0.29 psi): f 3.0 <br />mm (0.12 in) <br />b. At 20 kPa (2.9 psi): f 2.5 <br />mm (0.10 in) <br />c. At 200 kPa (29 psi): f) <br />mm (0.04 in) <br />ISO 9863-1 (ASTM D <br />5199) <br />Wide-width tensile strength f 10 kN/m (685 lb/ft)ISO 10319 (ASTM D <br />4595) <br />Wide-width maximum <br />Elongation <br />h 130%ISO 10319 (ASTM D <br />4595) <br />Water permeability in <br />normal direction under <br />load (pressure) <br />At 20 kPa (2.9 psi): f 110 -4 m/s <br />(3.310 -4 ft/s) <br />DIN 60500-4 <br />(mod. ASTM D <br />5493 or ASTM <br />D 4491) <br />In-plane water <br />permeability <br />(transmissivity) under <br />load (pressure) <br />a. At 20 kPa (2.9 psi): f <br />510-4 m/s (1.610-3 ft/s) <br />b. At 200 kPa (29 psi): f <br />210-4 m/s (6.610-4 ft/s) <br />ISO 12958 (mod. <br />ASTM D 6574 or <br />ASTM D 4716) <br />Weather resistance Retained strength f 60%EN 12224 (ASTM D <br />4355 @ 500 hrs. <br />exposure) <br />Alkali resistance f 96% <br />polypropylene/polyethylene <br />EN 13249, Annex B <br />(Manufacturer <br />certification of <br />polymer) <br />9 <br />10 8-26.3 Construction Requirements <br />11 Contractor shall excavate to the lines and grades shown on the construction drawings. <br />12 The Engineer shall inspect the excavation and approve the foundation soils prior to <br />13 placement of leveling material or fill soils. <br />14