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Specifications - City of Montpelier, Vermont

Specifications - City of Montpelier, Vermont

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<strong>Montpelier</strong> District Heating<strong>City</strong> <strong>of</strong> <strong>Montpelier</strong>, VTIssue Date:September 28, 2012Title:02370 – Erosion ControlPage #:2 <strong>of</strong> 3PART 2 PRODUCTS2.1 SILT FENCEA. Silt fencing shall be a pervious sheet <strong>of</strong> polymer stabilized against ultraviolet degradation.Silt fencing must meet the minimum following requirements:Fabric PropertyMinimum Fabric RequirementThickness, mils 12Width, in 36Mass Per Unit Area, oz/sy 2.5Tear Strength, lb. 50Equiv. Opening Size, sieve2050B. Silt Fence posts shall be 2inch square hardwood and 4½ feet in length.2.2 TURF REINFORCEMENT MATTINGA. Turf Reinforcement Matting (TRM): Web <strong>of</strong> polyolefin fibers positioned between twobiaxiallyoriented nets, mechanically bound by parallel stitching with polyolefin thread.All components <strong>of</strong> matrix stabilized against ultraviolet degradation and inert tochemicals normally encountered in natural soil environment. Meets or exceeds theminimum average roll values tabulated below:Fabric Property Test Method Minimum Fabric RequirementThickness, in ASTM D5199 0.35Resiliency, percent ASTM D5199 80Mass Per Unit Area, oz/sy ASTM D5261 8.0Tensile Strength, lb/ft ASTM D5035 145 x 110Tensile Elongation, percent ASTM D5035 50 (max)Tensile Strength @ 10% ASTM D5035 100 x 70B. Erosion Control Matting (ECM) shall be 100% agricultural straw matrix stitch bondedwith degradable thread between two photodegradable polypropylene nettings. ECMshall be North American Green S75 or approved equivalent.EROSION CONTROL 02370 2

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