Yours

Educational199423 min320×240

Concrete Pavement Overlays

Federal Highway Administration

Education

At the Internet Archive

Clips are not offered for this film: a public-domain mark that nothing bears out (no year, or a year no US term has left).

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. Open it at the Internet Archive.

About

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

Human-made No record of this work says a model made it. What this means.

Archive
Internet Archive, in FedFlix: US government films
Licence or status
CC0 1.0, as the Internet Archive states it.
Credit
Federal Highway Administration
Language
English
Who can watch
The archive gives no rating. Invisible Network shows it to Tweens profiles and older, judged from its collection and subjects. How films are placed