- Delivery costs are to be included in the unit price. FOB destination. - Coarse aggregate shall consist of sound, durable rock, free from objectionable coatings or frozen or cemented lumps. - Aggregate sampling and grading shall be performed in accordance with ASTM C33 and gradation sizes shall comply with 57 or 67. - Coarse aggregate shall meet the chemical and physical requirements of ASTM C33. - Use the “Exceptions Page” to list additional items or specifications as needed. - Submit additional sheets indicating the specifics for what materials are being proposed and showing the material’s approved use by the EMPC - Coarse aggregates consisting of limestone, calcitic dolomite or other materials referred to as “limestone” is required to undergo additional testing for ACR potential. - Coarse aggregates not susceptible to ACR like trap rock are not required to perform the additional ACR testing. - Coarse aggregates shall comply with Section 1005 of the St. Louis County Standard Specifications Manual - The estimated annual quantity of course aggregate to be purchased by the City is 1,900 tons.
