Pavement
Selection and Design of Initial Treatments for Sprayed Seal Surfacings
- Publication no: AP-T310-16
- ISBN: 085588 683 8
- Published: 12 July 2016
- PDF (free) Download
This document is an update of the design of initial treatments for sprayed seal surfacing.
The information contained within this document supersedes that found in Austroads AP-T68-06 Update of the Austroads Sprayed Seal Design Method, and replaces Section 12 in that document.
The terminology used to describe applying sprayed seals directly onto a pavement basecourse has also been updated.
Previously there has been no formal design method used for initial sealing. The typical seal design method may be used for this purpose, with specific adjustments based on the requirements of applying a seal directly to a pavement basecourse.
- Summary
- 1. Introduction
- 1.1. General
- 1.2. Definitions
- 1.2.1. Initial Treatment
- 1.2.2. Prime
- 1.2.3. Initial Seal
- 1.2.4. Secondary Treatment
- 1.2.5. Retreatment
- 1.3. Categorisation of Sealing Treatments
- 1.4. Background
- 2. Prime
- 2.1. Function of a Prime
- 2.2. When to Prime
- 2.3. Selection and Design for Priming
- 2.4. Pavement Preparation
- 2.5. Construction and Maintenance Scheduling
- 2.5.1. Curing Time
- 2.5.2. Expected Lifespan
- 3. Initial Seals
- 3.1. Function of an Initial Seal
- 3.2. When to use Initial Seals
- 3.3. Selecting an Initial Seal
- 3.3.1. Binder Type
- 3.3.2. Aggregate Size
- 3.4. Binder Application Rates
- 3.4.1. Single/Single Initial Seal
- 3.4.2. Double/Double Initial Seal
- 3.4.3. Allowances
- 3.5. Aggregate Spread Rates
- 3.5.1. Single/Single Initial Seal
- 3.5.2. Double/Double Initial Seal
- 3.6. Stabilised Bases
- 3.6.1. Lime and Cementitious Stabilisation
- 3.6.2. Foamed Bitumen Stabilisation
- 3.7. Pavement Preparation
- 3.8. Construction and Maintenance Scheduling
- 3.8.1. Curing Time
- 3.8.2. Expected Lifespan
- References
- Appendix A Photographic Examples of Pavement Preparation
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