Alkali-silica Reaction in Concrete, as Seen in the Scanning Electron Microscope

An "over the shoulder" video looking at ASR in the SEM

Video showing details of reacting aggregate and X-ray microanalysis of aggregate, gel and cement paste

This video is Part 1 of a series of two. In this first video we look at polished sections in the SEM of concrete from a bridge that was demolished due to alkali-silica reaction (ASR).

The reactive aggregate in this video is chert, a rock type composed largely of microcrystalline silica. The video is about 18 minutes long.

When Part 2 is available I'll let you know via Cembytes, our Understanding Cement Newsletter. Sign up here for Cembytes if you haven't already!

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