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Proposal for Materials Testing Services (Revised 8-29-14) Old Dixie Highway Resurfacing v. Indian River County, Florida August 29, 2014 cd Dunkelberger Proposal No PHB 140131 Page 2 Earthwork — Embankment and LBR 40 Shoulder Stabilization • Laboratory Proctors (AASHTO T-99 and T-180) to determine maximum density of the soils used for embankment and pipe backfill. • In-place density tests of the embankment and pipe backfill at a frequency of 1 test per 500 linear feet each side of roadway (or fraction thereof) • Limerock Bearing Ratio (LBR) tests of the in-place LBR materials for the Stabilized Shoulders at a frequency of 1 test about every 2000 linear feet or 5 LBR samples on each side of roadway (total of 10 tests) • Thickness verification of completed 12" LBR Shoulder Stabilization. • In-place density tests of the LBR Shoulder Stabilization at a frequency of 1 test per 500 linear feet each side of roadway (total of 44 tests). FDR Base Course • FDR mix design — Review and evaluate the mix design developed by the Contractor for its design approach and procedure. • Full Sieve Analysis test on the virgin materials before injection of emulsion at a frequency of 1 test every 1000 linear feet per lane (estimated total of 22 tests). • Maximum Density (Proctor) tests of the in-place FDR base materials at a frequency of 1 test every 1000 linear feet per lane (estimated total of 22 tests) • In-place density tests at a frequency of 1 test per 500 linear feet per lane (estimated total of 44 tests) • Verification of completed FDR base course — Review and evaluate the verification testing plan as well as the testing results as provided by the Contractor. Contactor QC Testing of the Asphaltic Concrete (AC) Pavement We understand that the Contractor is responsible for their own QC testing which shall include performing at least one set of asphalt lab tests per day to evaluate the materials produced for construction during paving. A minimum of three cores shall be cut by the Contractor on daily basis to evaluate the in-place (constructed) density of the structural course construction The cores shall be tested for bulk specific gravity, and the compaction will be evaluated based on the percentage of the bulk specific gravity over the maximum density determined in the plant on the bulk mix materials. As an option, the density (% compaction) of the wearing course construction may be evaluated using a calibrated nuclear gauge if a correction factor can be established using the core densities from the first day of wearing course paving. Dunkelberger will not be in the asphalt plant to perform any verification testing (VT) during asphalt production. Field Observation • Provide a full-time FDOT CTQP qualified technician to check the construction operations for conformance with the applicable project specifications. o FDR Construction — checking the depth of pulverization; checking the homogeneity of the FDR virgin mix (without emulsion); checking the moisture DUNKELBERGER