LIME 706.03 669 Table 705:2 Select Borrow Testing Methods Test Item Method Sieve analysis AASHTO T 88 a Preparing samples AASHTO R 58 Liquid limit AASHTO T 89 Plastic limit and plasticity index AASHTO T 90 Slake durability ASTM D 4644 a Omit the Hydrometer Test
706.01 Hydrated Lime
Provide hydrated lime in accordance with AASHTO M 216, except, ensure the Available Lime Index, expressed as Ca(OH) 2, is at least 90.0 percent in accordance with ASTM C 25. The Department will not allow b y-product lime.
706.02 Quick Lime
Provide quick lime in accordance with AASHTO M 216, except, ensure the Available Lime Index, expressed as CaO, is at least 90.0 percent in accordance with ASTM C 25. The Department will not allow by -product lime.
706.03 Agricultural Limesto Ne
Provide high calcitic or dolomitic limestone for agricultural limestone that is free of toxic salts and other harmful matter. Test limestone in accordance with ASTM C 602. Ensure the Calcium Carbonate Equivalent is at least 80.0 percent. Ensure the gradation is in accordance with Table 706: 1. Table 706:1 Agricultural Limestone Gradation Sieve Size Percent Passing No. 4 [4.75 mm] 100 No. 8 [2.36 mm] 90 – 100 No. 60 [250 µm] 30 – 100 The Department will not allow by -product lime.
707.01 Thin Surface Courses
670 SECTION 707 THIN SURFACE COURSES
707.01 Materials
A.Approval of Materials Prepare the mix design at the Contractor designated lab and as required by the Contract. Prepare the mix design in general accor dance with ASTM D 6372, the latest version of the ISSA A -143 and the ISSA technical bulletins, and these specifications. Establish a job mix formula (JMF) which includes target gradations and specifies a percentage of residual asphalt for the mixture. Su bmit the mix design to the Department’s Materials Division, with applicable worksheets and data, for approval at least two weeks before construction begins. The Department will allow the use of previous mix designs reviewed and approved in the current cal endar year. The mix design will include as a minimum: Aggregate analysis with JMF and limits shown in table 707:2 for the type used. 0.45 aggregate gradation power chart. Asphalt residue content. Component chart in accordance with Table 707:1A. Mix Evaluation Tests in accordance with Table 707:1B. Produce and test trial mixtures before placement using the proposed project materials and equipment to substantiate the design. The Resident Engineer may waive trial mixtures if the design was previously proven to conform to these specifications. Establish a new mix design before using the new material if changing material sources. The Resident Engineer may request a new mix design if unsatisfactory results or other conditions make it necessary. The Resident Engineer will conditionally approve the following: Aggregate stockpiled at the plant, Asphalt at the source, and The mixture after mixing, pending the results of final acceptance tests. Table 707:1A Component Chart Component Percentage, on Dry Aggregate Basis Mineral Filler Type and Source Additive(s) Type and Source (if used) Total Water (no salt) Emulsion Type and Source Aggregate(s) Type and Source and Percentage
Source: Oklahoma Standard Specifications for Highway Construction, 2019 Edition. Pages 683–683 of 935.