Specifications include, but are not limited to: Cement shall conform to the ASTM Designation C-150. Type I, and II cement shall be used unless specified in special provisions. Different brands or different types of cement from the same mill or the same brand or type from different mills shall not be mixed or used alternately in the same item of construction unless authorized by the Engineer. The Contractor shall not store cement at the site of the work without prior approval of the Engineer. The right is reserved by the Engineer to sample the cement either at the origin of the shipment or after delivery at the site of the work or the ready-mix concrete plant. Provisional acceptance by the Engineer prior to the completion of tests shall in no way act as a waiver of the right to reject cement which has been shipped and unused, if upon completion of the tests, it fails to meet the requirements of the specifications. 4.2.2.1 Fly Ash: Shall conform to ASTM Designation C-618 Class C or Class F. 4.2.2.2 Ground Granulated Blast Surface Slag (GGBFS): Shall conform to ASTM C 989 and meet the activity performance in Table 1 Grade 100 or grade 120. 4.2.2.3 Water: Shall comply with requirements of ASTM C 1602. 4.2.2.4 Recycled Water: Recycled water from production and stormwater runoff meeting the requirements of ASTM C 1602 and other non-potable water sources shall be tested daily, or at intervals directed by the Engineer, and shall meet the requirements of ASTM 1602 Table 2. The concrete chloride ion content shall be in accordance with of ACI 318. 4.2.2.5 Fine Aggregate: Shall consist of natural sand, manufactured sand, or a combination thereof that is free from cemented or conglomerated lumps. Fine aggregate shall conform to the requirements of ASTM Designation C-33 Table 1 with respect to deleterious substances, soundness, and abrasion resistance