Comparing the Volumetric and Mechanical Properties of Laboratory and Field Specimens of Asphalt Concrete (2016) / Chapter Skim
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24 C H A P T E R 3 This chapter describes the experimental program used to generate and analyze the data required to meet the project objectives. 3.1 Determine Process-Based Factors Research conducted in Phases I and IA of this project indicated that the effects of some process-based factors on the variability of properties from the three specimen types should be quantified.
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25 Table 3-1. Description of process-based factors.
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26 For example, AC is measured for a mix produced with no baghouse fines and for a mix prepared with low absorption and soft aggregates. Before production, the moisture in the aggregate stockpile is low.
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27 Mix ID Source Design Asphalt Binder Content PG Asphalt Binder Used % RAP Binder Replacement Ratio Comments 6FL Community Asphalt from the rehabilitation of a state highway in Lee County, FL 6.0% 76-22 15% 17% 7IA Mathy Construction of Onalaska, WI, from construction on U.S. Highway 169 in Humboldt County, IA 6.2% 58-28 12% 9.6% 5.0% 82-22 CRM 0% 0%8LA Diamond B Construction of Amite, LA, from a project on State Highway 441 in Tangipahoa Parish, LA The design asphalt binder content was 5.0% using a polymer-modified PG 7022M asphalt binder.
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