Pavement

Cover of Guide to Pavement Technology Part 4K: Selection and Design of Sprayed Seals
Guide to Pavement Technology Part 4K: Selection and Design of Sprayed Seals
  • Publication no: AGPT04K-18
  • ISBN: 978-1-925671-66-7
  • Published: 18 October 2018
  • Edition: 1.2

Guide to Pavement Technology Part 4K: Selection and Design of Sprayed Seals is a guide to the procedures for the selection and design of sprayed seals.

This is an update of previous Austroads procedures based on the philosophy of filling up voids in the aggregate matrix with binder, to a depth of about one half to two thirds the height of the aggregate when laying on its least dimension.

The Guide discusses the historical background and operational environment of sprayed seals, alongside design, selection and construction procedures for various types of sprayed seals.

Edition 1.2 published in October 2018 corrects light vehicle values in Table C 2: Vehicle volume by lane.

Edition 1.1, published in September 2018, corrects cross references in Sections 5.5.1 and 5.5.2, and binder absorption allowances in Appendix F 4.3.

Edition 1.0, published in August 2018, was previously published as Guide to Pavement Technology Part 4K: Seals. This new edition of the Guide has been restructured and content updated to improve overall readability and usability, and incorporates sprayed seal design (Sections 5 and 6), which was previously published in a separate document.

The terminology used to describe sprayed seal treatment types has been updated, with some name substitutions and additions, and inclusion of different material usage based on the findings of recent Austroads studies (Section 3). New information for selecting sprayed seals is included (Section 4). Various updates to design parameters have been updated to reflect current practice (Section 6).