Pavement
Gisborne Sprayed Seal Binder Trial
- Publication no: AP-T126-09
- ISBN: 978-1-921551-21-5
- Published: 26 February 2009
- PDF (free) Download
A road trial was established at Gisborne on the Calder Highway. The aim of the trial was to review the performance of sprayed seals constructed from a number of binder types. Class 170 is typically used in Victoria for sprayed seals and a section was laid to act as a control section. Class 320 was used for a further section and 50/50 blend of Class 170 and 320 was used in anther section. The blend was given a nominal classification of Class 240. A lightly modified polymer modified binder (BP Olexobit SP) was used in a fourth section. The construction and first year of monitoring is discussed. Monitoring largely consisted of a visual inspection by a number of experienced practitioners supplemented with sand patch surface texture measurements.
- AP-T126/09 Gisborne Sprayed Seal Binder Trial
- SUMMARY
- CONTENTS
- TABLES
- FIGURES
- 1. INTRODUCTION
- 1.1. The Site
- 2. METHOD
- 3. CONSTRUCTION
- 3.1. General
- 3.2. Existing Surface Texture
- 3.3. Preparation of the Binders
- 3.4. Application of the Binder
- 3.5. Aggregate Spread Rat
- 4. MONITORING
- 4.1. January 18 2007
- 4.2. January 24 2007
- 4.3. February 2007
- 4.4. May 2007
- 4.5. October 2007
- 4.6. January 2008
- 5. CONCLUSIONS
- 5.1. General Discussion
- 5.2. Surface Texture
- 5.3. Binder Application Rate
- 5.4. Aggregate Mosaic
- 5.5. Visual Assessment
- 6. RECOMMENDATIONS
- REFERENCES
- APPENDIX A PRODUCTION RECORDS
- APPENDIX B ESTIMATES OF THE AGGREGATE SPREAD RATE FROM IMAGES
- INFORMATION RETRIEVAL
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