Section 415 — Paving Geotextiles

Description

415.01This work consists of installing paving geotextile and asphalt binder between pavement lifts.

Material

415.02Conform to the following Subsections: Asphalt binder 702.01 Blotter 703.12 Paving geotextile 714.01(d)

Construction Requirements

415.03Submittals. At least 14 days before starting paving geotextile installation, submit the following according to Subsection 104.06:

(a)A production certification for the geotextile;

(b)An 18- by 18- inch sample from beyond the first outer wrap of the roll. Label the sample with the lot and batch number, date of sampling, project number, item number, manufacturer, and product name;

(c)The manufacturer’s recommended asphalt binder application ra te based on field conditions and geotextile asphalt retention properties; and

(d)A plan of operations for installing the geotextile.

415.04General. Identify, store, and handle geotextile according to ASTM D4873 and the manufacturer’s recommendations. Limit exposure to ultraviolet radiation to less than 2 days.

415.05Surface Preparation. Clean the existing surface of loose material, dirt, or other deleterious material by approved methods.

415.06Weather Limitations. Apply asphalt binder and paving geotextile when the following apply:

(a)Surface is dry and unfrozen; and

(b)Surface temperature is above 55 °F and rising.

415.07Asphalt Binder Application. Apply asphalt binder to the pavement surface according to Subsection 407.09 at 290 to 325 °F. Spray the asphalt binder 6 inches wider than the paving geotextile. Do not apply the asphalt binder further than the temporary traffic control zone for this work. Use the same asphalt binder grade as required in the approved JMF.

415.08Paving Geotextile Placement. Before the asphalt binder cools and loses tackiness, place the paving geotextile smoothly and with minimal wrinkling onto the binder. Use equipment designed to hold the roll and lay down the paving geotextile. Provide uniform tension and broom the geotextile smooth during placement. Slit, lay flat, and tack wrinkles or folds higher than 1 inch. Cut to remove folds that result in three or more layers of geotextile. Broom and roll the paving geotextile to maximize fabric contact with the pavement surface. Overlap the geotextile 6 inches at longitudinal joints to ensure full closure. Do not overlap transverse joints. Butt adjacent geotextile ends together at transverse joints. Apply additional asphalt binder to paving geotextile overlaps to ensure proper bonding of the double fabric layer. If asphalt binder bleeds through the fabric, treat the affected areas with blotter according to Section 411 . Broom the excess blotter from the geotextile surface be fore placing the overlay. Do not turn equipment on the geotextile. Repair damaged fabric before placing overlay. Limit the lay -down temperature of the asphalt concrete overlay to no more than 300 °F.

415.09Acceptance. Asphalt binder will be evaluated under Subsection 106.03. Material for paving geotextiles will be evaluated under Subsections 106.02 and 106.03. Provide a production certification with each shipment of geotextile. Include the name of the manufacturer, product name, and style number. Installation of the paving geotextile will be evaluated under Subsections 106.02 and 106.04. Blotter will be evaluated under Section 411.

Measurement

415.10Measure the Section 415 pay items listed in the bid schedule according to Subsection 109.02 .

Payment

415.11The accepted quantities will be paid at the contract price per unit of measurement for the Section 415 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05 . Section 416. — RESERVED Section 417. — RESERVED