# Alkali-Silica Testing, Alkali-Silica Reactivity

Federal Highway Administration Video VH-277 Alkali-Silica Testing, Alkali-Silica Reactivity Alkali-silica reactivity, a major cause of deterioration in concrete, is explained in the introduction to this video. Determination of reactivity damage through use of a handbook, and prevention through use of low-alkali cements and aggregates and pozzolanic materials are discussed. New tests are explained in detail: a gel recognition test for use by field personnel, and a laboratory procedure, ASTM P 214. Conventional laboratory test methods, ASTM C 227 and ASTM C 289, are also demonstrated. SHRP tape 29.

- Kind: Educational
- Year: 1994
- By: Federal Highway Administration
- Genres: Education
- Archive: [Internet Archive](https://archive.org/details/gov.dot.fhwa.ttp.vh-277)
- 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)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/gov.dot.fhwa.ttp.vh-277?play=1)