Publications

Showing 1 - 9 of 9 Publications
Sprayed Sealing of Drought and Salt Affected Pavements
This Pavement Work Tip is a practical guide to sprayed sealing in areas where a pavement may be affected by drought or salt content in its construction.
Review of Surface Texture Measurement Method for Seal Design Input
This report presents an extensive literature review of pavement surface texture measurement methods with a specific interest in how they affect operator safety and delays to traffic. The literature review shows that there are a number of methods in…
Review of Foamed Bitumen Sealing in Australia
In 1993, Austroads performed an extensive trial of foamed bitumen sprayed sealing in Australia, as a part of environmental and energy effective sealing technology development program. The trials were conducted in various states and reported to be…
Seal Distress Mechanisms: An Initial Study into Flushing
A review of bleeding or flushed seals was undertaken to determine what physical changes had taken place within the seal that had resulted in the binder lying at or close to the surface. The evaluation process used a visual appraisal and a digital…
Development of HDM-4 Road Deterioration (RD) Model Calibrations for Sealed Granular and Asphalt Roads

Improved RD models for sealed granular and asphalt pavements are needed. Pavement performance history data from state road authorities and New Zealand (SRAs) were used for calibrating RD models. The calibration and refinement of RD models is…

Geotextile Reinforced Seals
This guide presents information on the application, design, maintenance and recycling of geotextile reinforced seals. The main application is as a surfacing treatment though there is some discussion of use as an interlayer. Two grades of fabric are…
Sprayed Seal Cutting Practice
This brief Guide provides advice on the proportion of cutback to be added to conventional bitumen to ensure that an even coating of bitumen is achieved under a variety of climatic and traffic conditions. Notes are provided to assist users when to…
Fibre-Reinforced Seals
Fibre reinforced seals comprise a sprayed sealing treatment consisting of a layer of glass fibre strands sandwiched between two coats of a polymer modified bituminous emulsion. The fibres are applied randomly to form a mat that resists reflective…
Audit and Surveillance of Sprayed Sealing Contract Works
Austroads and the Australian Asphalt Pavement Association (AAPA) have jointly prepared this Guide to the Audit and Surveillance of Sprayed Sealing Contract Works as an aid to promoting good practice in the performance of sprayed sealing work.…