Browsing NTNU Open by Author "Østnor, Tone Anita"

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Brukermanual for BetongGUI – analyse og karakterisering av porer på betongoverflaten

Østnor, Tone Anita; Aarstad, Kari; Kaspersen, Kristin; De Weerdt, Klaartje (COIN Projet report;51-2014, Research report, 2014)
Determining alkali leaching during accelerated ASR performance testing and in field exposed cubes using cold water extraction (CWE) and μXRF

Lindgård, Jan; Østnor, Tone Anita; Fournier, Benoit; Lindgård, Øyvind; Danner, Tobias; Plusquellec, Gilles; De Weerdt, Klaartje (Journal article; Peer reviewed, 2018)

Considerable leaching of alkali metals was documented, both in concrete samples exposed to accelerated laboratory testing and field samples. CWE allowed to quantitatively determine the free alkali metal profiles as a ...
Role of calcium on chloride binding in hydrated Portland cement–metakaolin–limestone blends

Shi, Zhenguo; Geiker, Mette Rica; De Weerdt, Klaartje; Østnor, Tone Anita; Lothenbach, Barbara; Winnefeld, Frank; Skibsted, Jørgen (Journal article; Peer reviewed, 2017)

Chloride binding is investigated for Portland cement–metakaolin–limestone pastes exposed to CaCl2 and NaCl solutions. The phase assemblages and the amount of Friedel's salt are evaluated using TGA, XRD and thermodynamic ...