883 Page 532883 CLAY
883.1REQUIREMENTS
Clay to be used for gravel surfacing or granular materials to be lime treated will consist of soil binder or fines, uniform in texture, fineness, and other characteristics. Seams, layers, and pockets of soil encountered not having qualities considered suitable for the intended use will be wasted. During production the clay will be screened over a 1 inch sieve to remove oversize clumps and vegetation. The plasticity index of the clay will be from 10 to 32 and the liquid limit will not exceed 50, when tested in accordance with SD 207. When mixing by a central plant is required, the clay will be pulverized and will meet the following requirements based on undried weight just prior to blending with the gravel when tested in accordance with SD 215. Sieve Size Percent Passing 3/4 inch 100 3/8 inch 85 - 100 #4 65 – 100 884 Page 533884 MILLED, RECLAIMED, AND SALVAGED MATERIAL
884.1GENERAL REQUIREMENTS
The material will conform to the specifications for the particular material required by the contract. The specific requirements contained in Section 884.2 will apply to the specified material at the time of use or incorporation into the final product. The milled, reclaimed, and salvaged material will not contain clay balls or organic debris.
884.2SPECIFIC REQUIREMENTS
A.Cold Milled Asphalt Concrete: Cold milled asphalt concrete material will conform to the gradation requirements for the specified use of the cold milled asphalt concrete material. B.Cold Milled Asphalt Concrete and Placing Cold Milled Material: Cold milled asphalt concrete material placed directly from the cold milling operation into the final product as indicated by the bid item will conform to the following gradation: Sieve Size Percent Passing 1½ inch 100 C.Reclaimed Asphalt Pavement (RAP): Prior to incorporation, RAP will be processed over a 1½ inch screen to remove large chunks. Material screened off will be crushed and reincorporated into the process. Scalping of the cold milled asphalt concrete stockpile to generate material meeting the RAP requirements will not be allowed. 1.RAP in Asphalt Concrete: RAP used in asphalt concrete production will conform to the following gradation: Sieve Size Percent Passing 1½ inch 100 1 inch 95 - 100 2.RAP in Cold in Place Recycling: The RAP used in cold in place recycling will conform to the following gradation: Sieve Size Percent Passing 1¼ inch 100 1 inch 95 - 100 D.Salvaged Material: Prior to incorporation, salvaged material will be processed over a 1½ inch screen to remove large chunks. Material screened off will be crushed and reincorporated into the process. Scalping of the salvaged material stockpile will not be allowed. 1.Subbase, Salvaged: Subbase, salvaged will conform to the following gradation: Sieve Size Percent Passing 1½ inch 100 1 inch 95 - 100