505.01. Description. This work consists of preparing the pavement surface and providing and placing a single chip seal, double chip seal, or shoulder chip seal. 505.02. Materials. Provide materials in accordance with the following: Coarse Aggregate, 34CS (ODOT #8) ........................................... 902 Asphalt Emulsion, CSEA ...............................................................904 The Department will waive the AWI requirement on shoulders. 505.03. Construction. Equipment. Provide equipment, in accordance with section 107 and the following, capable of producing and placing a product meeting the requirements of this section. Pressure Distributor. Provide a pressure distributor with a computerized application rate and speed control, capable of maintaining the asphalt emulsion at the temperature required by the contract. Ensure the control has a radar ground-sensing device that controls the application rate regardless of ground speed and spray bar width. Ensure the spray bar nozzles produce a uniform, triple-lap application fan spray, with instantaneous shutoff and no dripping. Ensure each pressure distributor can maintain the required application rate within ±0.015 gallons per square yard for each load. Chip Spreader. Provide a self-propelled chip spreader equipped with a computerized spread control, pneumatic tires, and a screen to remove oversized material. Compacting Equipment. Provide at least three self-propelled pneumatic-tired rollers, each weighing at least 8 tons. Brooms. Provide motorized brooming equipment, capable of cleaning the road surface before treatment and removing loose particles after treatment. Provide pick-up sweepers to clean road surfaces adjacent to lawns or roadways with curb and gutter. Pre-Production Meeting. Before beginning work, conduct an onsite pre-production meeting with the Engineer to discuss the following: Review of the work schedule; Examination of the traffic control plan; Review of equipment calibration and adjustments; Inspection of conditions of materials and equipment, including transport units; Submission of the mix design including JMF and a “Design for Intended Yield,” containing the aggregate gradation, LA Abrasion Resistance, loose unit weight, and application rate of asphalt emulsion and aggregate; Submission of test results for flat and elongated ratio. Collect samples from one of the following locations: The shipping face of the stockpile at the production source, or The job site stockpile; Designation of the Contractor’s authorized representative
