Locating ettringite due to DEF at the pore scale of cement paste by heat-based dissolution tests

•A heat-based dissolution test is proposed to remove the ettringite in the cement paste precipitated during the DEF.•The test is based on the thermal instability of ettringite at a temperature above 65 °C.•The pores filled by precipitated crystals during DEF are proved to be emptied.•The correspondi...

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Veröffentlicht in:	Construction & building materials 2020-10, Vol.258, p.120000, Article 120000
Hauptverfasser:	Gu, Yushan, Omikrine Metalssi, Othman, Martin, Renaud-Pierre, Fen-Chong, Teddy, Dangla, Patrick
Format:	Artikel
Sprache:	eng
Schlagworte:	Cement pastes Delayed Ettringite Formation Engineering Sciences Materials Mercury intrusion porosimetry Pore size distribution Sulfate attacks
Online-Zugang:	Volltext
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