In situ TEM observation of calcium silicate hydrate nanostructure at high temperatures

Volume: 149, Pages: 106579 - 106579
Published: Nov 1, 2021
Abstract
Fire poses a substantial threat to concrete structures because calcium silicate hydrate (C-S-H) is not thermally stable at high temperatures. Herein, in situ TEM at temperatures from 20 to 800 °C was conducted to study the thermal-induced structural changes in C-S-H. We captured C-S-H shrinks at an average rate of 0.02 μm2/oC upon heating with three stages observed, including induction, constant, and rapid periods. Our observation revealed that...
Paper Details
Title
In situ TEM observation of calcium silicate hydrate nanostructure at high temperatures
Published Date
Nov 1, 2021
Volume
149
Pages
106579 - 106579
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