Territory Stories

Standard specification for road works 2015/2016



Standard specification for road works 2015/2016


Standard specification for road works; Reports; PublicationNT




Made available via the Publications (Legal Deposit) Act 2004 (NT).; Check within Publication or with content Publisher.


miscellaneous provisions ■ provision for traffic ■ clearing grubbing and rehabilitation ■ earthworks ■ conformance testing ■ pavements and shoulders ■ stabilisation ■ spray sealing ■ dense graded asphalt ■ slurry surfacing ■ miscellaneous concrete works ■ drainage works ■ protection works ■ road furniture and traffic control devices ■ pavement marking ■ landscape ■ ducting and conduits ■ traffic control signals ■ traffic counting stations ■ street lighting ■ directional (thrust) boring ■ measurement and payment ■ referenced documents ■ nt climate zones table ■ This document specifies the general standards of materials and workmanship required by the Department of Infrastructure for construction of civil road network assets




Roads -- Northern Territory -- Works -- Periodicals.

Publisher name

Department of Infrastructure

Place of publication



Second edition

Parent handle


Citation address


Page content

SPRAY SEALING STANDARD SPECIFICATION ROADWORKS DoI REFERENCE TEXT December 2015 Page 60 Polymer Modified Binders, Australian Asphalt Pavement Association, 2013. Refer to PROJECT SPECIFIC REQUIREMENTS in the RFT for Initial seal coat Class and Reseal coat Class. Ensure product meets the requirements of the specification at point of delivery. Store, mix, heat and spray the polymer modified binder as recommended by the polymer manufacturer. Both coats of two coat seals shall contain polymer. Initial seal coat: Class S10E Reseal coat: Class S10E 8.8.5 Binder Coats, Tender Quantities Refer to PROJECT SPECIFIC REQUIREMENTS in the RFT for spray rates used as a basis for calculating tender quantities. 8.9 SAMPLING OF BINDER 8.9.1 Test Request Darwin Urban areas Test requests are to be sent to the panel period contractor to witness sampling and arrange testing. All other areas - the supplier is to sample and deliver the sample to DoI staff within 48 hours. 8.9.2 Supply of Sampling Containers Supply all sampling containers as required for sampling purposes. - Sample containers are to be leak proof and having a capacity of not less than one litre. - Sample containers must be clean, rust free and capable of receiving a product at high temperatures. 8.9.3 Definition of Sampling - A sample is three containers of product collected at the same time from the same supply source. - One sample container is for the Contractors analysis. - Two sample containers are for the Department to analyse. Note: Refer to the Superintendent for requirements if samples are nonconforming 8.9.4 Frequency of Samples Refer to CONFORMANCE TESTING. 8.9.5 Collection of Samples WITNESS POINT Take samples prior to addition of adhesion agents. Conformance test sampling is to be collected at point of delivery. Ensure bulker has adequate sampling cocks installed so as samples can be taken on transfer from the bulker to the sprayer. Do not take bituminous samples from the spray wagon, except for prime samples. Witness Point Take samples from the point of delivery on transfer from the bulker to the sprayer or as directed. Where transfer is for works in the urban area or for small works ensure that conformance testing is ordered and samples are taken at the point of transfer from bulker to sprayer. All sampling must be in accordance with Australian or Austroads standards. The supplier is to perform the sampling. Ensure staff carrying out sampling are competent in sampling methods. Ensure sampling techniques do not allow contamination of the samples. Where samples are not collected, 10% reduction adjustments (Table 23.1 Payment Adjustments in MEASUREMENT AND PAYMENT) will apply to the total materials represented. 8.9.6 Sample Identification Samples must be clearly identified with permanent marker on adhesive labels on each tin. Mark samples with the following information on the container at the time of collection. - Container number. - Sample number. - Date and time of sample taken. - Designation or Classification of Materials. - Sample Temperature. - Tanker/Sprayer Identification Number. - Name of Supplier. - Road Name and number. - Site Identification. - Location and Chainage. 8.9.7 Storage and Delivery of Samples Store all samples taken to prevent accidental damage or contamination. Submit sample containers at the completion of each days spraying. 8.9.8 Stockpile Sites Stockpiles in urban areas are not permitted. Urban areas for Darwin region is nominated as North of Cox Peninsula Road (Stuart Highway), West of Trippe Road (Arnhem Highway) and the end of seal on Gunn Point Road. Existing stockpile sites clean to suit. Provide a separate site for each aggregate size. Allow 15 metres between adjacent sites.