Friday, 25 August 2023
Six updated Work Tips on sprayed sealing are now available for pavement engineers. The Work Tips provide most current guidance to ensure safety, high productivity, and low cost of maintenance of roads surfaced with sprayed seals.
Sprayed seals are an important component in the road system in Australia and New Zealand. Sprayed seals are an economical surfacing and are used effectively as treatments on roads carrying several thousand vehicles per day.
The updated Work Tips focus on selection of seals, planning of sprayed work, pre-spraying techniques, essential elements of the calibration process for bitumen sprayers and aggregate spreading equipment as well as construction practices during extreme hot weather.
For advice on random selection of sampling or test locations refer to the recently published Austroads Test Method ATM 020.
View the Work Tips:
Work Tip 19 – Sprayed Sealing – Selecting Aggregate Size
Work Tip 22 – Sprayed Sealing – Minimising Handwork
Work Tip 34 – Sprayed Sealing – Calibration of Bitumen Sprayers
Work Tip 35 – Sprayed Seals – Aggregate Spread Rates and Spreader Calibration
Work Tip 36 – Sprayed Seals – Pre-spraying to Correct Surface Texture
Work Tip 52 – Sprayed Sealing in Extremely Hot Weather
Download the linked index of the Pavement Work Tips.