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Aggregate Wetting and Initial Adhesion of Sprayed Sealing Binders

Cutting solvents have been traditionally added to binders used in sprayed sealing in Australia and New Zealand to ensure that effective adhesion occurs between binder and aggregate. Recent Polymer modified binder (PMB) sealing failures, which have…

Fourth National Survey of Australian Bitumens

This report is the fourth in a series which examines the properties of bitumens used in Australia. The bitumen testing program was undertaken to develop a database of selected bitumen samples dating back to 1956. This database has been used to…

The Effects of Heavy Vehicle Single, Tandem and Triaxle Groupings on Sprayed Seal Wear - Stage 1

The majority of sprayed seal design methods around the world are based on the work of Hanson, published in 1935. However, there are growing weaknesses in current sprayed seal design models. Traffic loads have increased, particularly in both the…

Sprayed Seal Cutting Practice
This Pavement Work Tip provides a handy reference to the recommended practice for cutting sprayed sealing binders.
Sprayed Sealing: Selection of Initial Treatments
This Pavement Work Tip provides a guide to selection and use of either prime and seal, or primerseals, as initial treatments for granular pavements.
Treatment of Flushed Seals Using Chemical Solvents
This Pavement Work Tip is a practical guide for restoring texture to bleeding or flushed surfaces by applying additional aggregate with the assistance of chemical solvents.
Asphalt and Seal Life Prediction Models based on Bitumen Hardening
This report documents the surface life prediction models that have evolved from the long term sampling of the bitumen in sprayed seals and thin asphalt surfaces. The estimation of surface life is predicated on the basis of the mechanism of bitumen…