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SECTION 2 – STREETS, WALKWAYS & PATHS <br />15 <br />Table 2-4.2(1): <br />Component Acceptable Tolerance (%) <br />Bitumen Content +/- 0.7 <br />Aggregate Gradation <br /> Primary Control Sieve +/- 6.0 <br /> 200mm Sieve +/- 1.0 <br />Adjustment Points will be assessed for HMA components which exceed acceptable tolerances as <br />follows: <br />Bitumen content: 1% for each 0.1% out high <br />2% for each 0.1% out low <br />Aggregate Gradation: <br />Primary Control Sieve 1% for each 1% out <br />200mm Sieve 1% for each 0.1% out <br />Final quantities will be adjusted using the total of these adjustment points for each day’s production. <br />The accepted pay quantities for each mixture tested will be: <br />Less than 300 tons: tons produced <br />300 tons or more, less than 800 tons: (tons produced) x (100% – adjustment points) <br /> Each additional 800 tons: (tons produced) x (100% – adjustment points) <br />Test results may be appealed by testing the remaining portion of the sample. The results will be <br />averaged with the original test results to determine acceptance and adjustment points. No further <br />appeals will be granted. <br />HMA may be placed below temperatures listed in INDOT section 402.12 only when approved in <br />writing by the City Engineer. All HMA failing to meet ninety-two percent (92%) of density <br />requirements shall be removed and replaced. <br />2-4.3 PAVEMENT SECTION <br />For pavement areas in locations with non-cohesive soils, the minimum HMA pavement section to <br />be used without a unique pavement design, by functional classification, is as shown in Standard <br />Drawing 2-11. <br />If cohesive soils are present, a geotechnical investigation is required, addressing both pavement <br />design and drainage. Geotechnical requirements are identified in Section 2-3 of this Specification. <br />The pavement sections shown in the above referenced standard drawing were developed based <br />upon the AASHTO 93 pavement design method and are based upon subgrade with a California <br />Bearing Ratio (CBR) of five (5). Differing soil conditions, as identified by a Geotechnical <br />Investigation, may result in a modified pavement design. All pavement designs are subject to <br />approval by the City Engineer.