Blar i SINTEF Open på forfatter "Østnor, Tone Anita"
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Alternative binders based on lime and calcined clay
Østnor, Tone Anita; Justnes, Harald (COIN Project report;68, Research report, 2015)Alternative binders are in this report defined as binders without Portland cement. In this particular project it will be based on calcined clay or fly ash as a source of reactive silica and alumina in combination with lime ... -
Brukermanual for BetongGUI – analyse og karakterisering av porer på betongoverflaten
Østnor, Tone Anita; Aarstad, Kari; Kaspersen, Kristin; De Weerdt, Klaartje (COIN Project report;51, Research report, 2014) -
Characterisation of concrete surfaces in Askimporten tunnel: COIN project report 45 - 2012
Kaspersen, Kristin; Østnor, Tone Anita; Eide, Mari Bøhnsdalen; De Weerdt, Klaartje (COIN Projet report;45, Research report, 2012)This report gives the findings from a collaboration project between the Norwegian Public Roads Administration (NPRA) and the COIN FA 2.1 project managed by SINTEF Building and Infrastructure which was start in spring ... -
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 ... -
Durability of mortar with calcined marl as pozzolan 2 year results : FA 1 Environmentally friendly concrete structures : SP 1.1 Binders with low emission and reduced consumption
Østnor, Tone Anita; Justnes, Harald (COIN Project report;50, Research report, 2014) -
Durability of mortar with calcined marl as pozzolan : FA 1 Environmentally friendly concrete : SP 1.1 Low carbon-footprint binder systems
Østnor, Tone Anita; Justnes, Harald (COIN Project report;49, Research report, 2013) -
Fly ash – Limestone Synergy in Ternary Cements. FA 1 Environmentally friendly concrete. SP 1.1 Low carbon-footprint binder systems
De Weerdt, Klaartje; Østnor, Tone Anita; Justnes, Harald (COIN Project report;46, Research report, 2013)The objective is to study the parameters of cements and fly ashes in combination with limestone that would optimize the synergistic chemical reaction between fly ash and limestone that leads to more bound water and thereby ... -
Microstructure of clinker – fly ash interactions
De Weerdt, Klaartje; Østnor, Tone Anita; Justnes, Harald (COIN Project report;69, Research report, 2015)The first objective was to find out why a white clinker from previous studies has a higher strength potential than the other 3 clinkers tested in the same study, as well as finding out whether or not it contains other ... -
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 ... -
Ternary cement blends with Fly ash-Calcined clay-OPC: An evaluation on their early age and mechanical properties as binders
Ng, Serina; Østnor, Tone Anita (Chapter, 2017)The synergetic effect of SCMs, fly ash (F) and calcined clay(C) in ternary mixes at 20% replacement was evaluated. It was found that due to the complementary water demand of F and C, pastes made of ternary blends of FC-OPC ...