2015/2016 Standard specification for road maintenance
Standard specification for road maintenance; Reports; PublicationNT
Made available via the Publications (Legal Deposit) Act 2004 (NT).
Roads -- Northern Territory -- Maintenance and Repairs -- Periodicals
Department of Infrastructure
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CONFORMANCE TESTING STANDARD SPECIFICATION FOR ROAD MAINTENANCE DoI REFERENCE TEXT October 2015 Page 35 Multiplier Values for Asphalt 4.11.6 Table 4.3 Multiplier Values for Asphalt Values of the Multiplier k for Characteristic Mean Dry Density Ratio (Rc) are shown in the following table. Number of tests per lot (n) k 5 or less 0.0 6 0.719 7 0.755 8 0.783 9 0.808 10 0.828 The work represented by a lot will be assessed as the characteristic value of in-situ air voids where: Characteristic Value of Air Voids (%) = 100 Rc STABILISED LAYER CONFORMANCE 4.12 Tolerances 4.12.1 For stabilised layers conform to the tolerances specified in Table 4.4 Stabilised Layers Conformance Testing Hold Point 4.12.2 Hold point - Superintendent to approve conformance of stabilised layer prior to priming. Refer to Table 4.4. Table 4.4 Stabilised Layers Conformance Attribute Requirement Dry Density Ratio: Refer to the table DRY DENSITY RATIOS FOR CONFORMANCE in the Conformance Testing Section. Stabiliser Application Rate/Content 10% of the designated value averaged for each lot Stabiliser Distribution: [i] Stabiliser content shall not vary by more than 0.5% absolute between top and bottom half of a layer at any location as determined in accordance with NTTM 204.8. [ii] Stabiliser content shall not vary by more than 0.5% from the designated value in any point. Moisture Content during Compaction: [i] 1.5% of moisture content determined at preliminary trial. [ii] 1.5% of optimum moisture content. [i] apply if a preliminary trial is carried out (i.e. total area over 1000m2) [ii] apply if a preliminary trial is not carried out (i.e. areas under 1000m2) Take samples for Liquid Limit, Plastic Limit, Linear Shrinkage, California Bearing Ratio from the unstabilised pavements. OTHER REQUIREMENTS 4.13 (If applicable) Refer to PROJECT SPECIFIC REQUIREMENTS section of Request for Tender.
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