Material Requirements 4.1.1. The temperature of asphaltic concrete or mineral aggregate upon discharge from the drier shall not exceed 325° degrees F, unless a higher temperature is recommended in writing by the Department, per Section 409 of the Standard Specifications. Asphaltic Concrete Mix Design Criteria 4.2.1. Utilizing mineral aggregate which has been crushed, processed, separated and stockpiled, each mix design shall be formulated and submitted by the Contractor under a cover letter signed by the Contractor for each order. The mineral aggregate samples used for mix design purposes shall be representative of aggregate materials to be used during production. 4.2.2. Each mix design shall be based on the mix design criteria and other requirements specified herein, or specified and approved otherwise by the Department, utilizing asphalt cement and mineral admixture of the type and from the sources proposed for use in the production of asphaltic concrete.
