# Concrete Pavement Overlays

Federal Highway Administration Video VH-273D Concrete Pavement Overlays The steps in constructing concrete overlays are outlined in this video, which begins with a discussion of design considerations and the use of bonded vs. unbonded overlays. Bonded overlays are demonstrated first. Pre-overlay repairs of faulted joints and shattered slabs are briefly shown. Surface preparation options are discussed: shot blasting or cold-milling, and secondary cleaning by sandblasting or water blasting. Next, concrete placement and curing are shown, with emphasis on the application of bonding material, and joint sawing and sealing are preformed. Unbonded overlays are demonstrated, with a discussion of pre-overlay repairs and the placement of a separation layer of hot mix asphalt concrete. Finally, new shoulders are shown for both types of overlays. SHRP tape no. 27

- Kind: Educational
- Year: 1994
- By: Federal Highway Administration
- Genres: Education
- Archive: [Internet Archive](https://archive.org/details/gov.dot.fhwa.ttp.vh-273d)
- Licence or status: [CC0 1.0](http://creativecommons.org/publicdomain/zero/1.0/) (as the archive states it)
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

Not offered: its uploader or archive marks it public domain, and nothing the site holds bears that out (its record gives no year, or a year from 1978 on, which no US term has left), so where it is free is not known. Unclear is not offered.