SECTION 845 FABRIC WRAPPED BACKFILL DRAIN MATERIALS
845.01 DESCRIPTION. Place fabric wrapped backfill drains at locations where depth
to weep hole flowline is 30 feet or less.
845.02 FABRIC WRAPPED BACKFILL DRAIN. Select from the Departments List
of Approved Materials.
845.02.01 Compressive Strength. Ensure the drain is capable of withstanding a
compressive load of 5,000 pounds per square foot on the wide side, with a maximum deflection of 50 percent.
845.02.02 Core. Use a rectangular core at least 17 inches wide, with nominal thickness
of at least 0.7 inch, consisting of molded plastic; or of a 3-dimensional structure of mono- filaments bonded at their intersections; or of 3/8-inch average diameter expanded polystyrene beads bound together with an adhesive compound, sufficiently open to allow free movement of water entering through the geotextile fabric, and manufactured specifically for drainage applications.
845.02.03 Wrapping. Wrap the core on all 4 sides with geotextile fabric conforming
to the requirements of Section 843 - geotextile fabric for subsurface drainage and separation.
845.03 PACKAGING AND CARE. Wrap the drain in a protective covering to protect
the fabric from direct sunlight, ultraviolet rays, temperatures greater than 140 F, mud, dirt, dust, and debris during all periods of shipment and storage. Completely cover with backfill material within 14 calendar days after placement. If completely backfilling the drain is not feasible, cover exposed portions with approved material to protect the fabric from direct sunlight. Remove and replace any drain not backfilled or suitably covered within 14 days after placing at no expense to the Department.
845.04 ACCEPTANCE. Furnish the manufacturer’s certification to the Engineer stating
the fabric wrapped backfill drains meets all requirements herein. The Engineer will accept the fabric wrapped backfill drains by certification and visual inspection. 845-1 SECTION 846 - DURABLE WATERBORNE PAINT
846.01 DESCRIPTION. This section covers quick-drying durable waterborne acrylic
pavement striping paint for permanent applications. The paint shall be ready-mixed, one- component, 100% waterborne acrylic striping paint suitable for application on such traffic-bearing surfaces as Portland cement concrete, bituminous cement concrete, asphalt, tar, and previously painted areas of these surfaces.
846.02 GENERAL. Select durable waterborne acrylic paint that conforms to the
composition requirements below. Annually provide independent analysis data and certification for each formulation stating the total concentration of each heavy metal present, the test method used for each determination, and compliance to 40 CFR 261 for leachable heavy metals content. Submit initial samples per formulation for approval before beginning striping operations on a yearly basis. The initial sample may be sent from the manufacturer of the paint. The non-volatile portion of the vehicle shall be composed of a 100% acrylic polymer as determined by infrared spectral analysis. The acrylic resin used shall be a 100% cross- linking acrylic as evidenced by infrared peaks at wavelengths 1568, 1624, and 1672 cm-1 with intensities equal to those produced by an acrylic resin known to be 100% cross-linking.
846.03 MANUFACTURER’S TESTING. Perform testing for Daytime and Nighttime
Color, Contrast Ratio, Titanium Dioxide (white paints) and Volatile Organic Content (VOC) on each lot of durable waterborne acrylic paint to be delivered for use on projects.
846.04 SAMPLING. The Department will obtain samples of durable waterborne acrylic
paint for compliance testing to the requirements of this section in accordance with the Department’s Field Sampling and Testing Manual.
846.05 CERTIFICATION. Submit manufacturer’s certification stating conformance to
the requirements of this section for each shipment of durable waterborne acrylic paint deliverer for use on projects. Clearly stat e the manufacturer, product name, product code, color, sampling method, test results of manufacturer required testing, and quantity 846-1