| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Skibsted, Jørgen
Aarhus University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (41/41 displayed)
- 2024Aqueous carbonation of aged blended Portland cement pastes:Impact of the Al/Si ratio on the structure of the alumina-silica gelcitations
- 2024Reactivity of aqueous carbonated cement pastes:Effect of chemical composition and carbonation conditionscitations
- 2023Future and emerging supplementary cementitious materialscitations
- 2023Composite cements with aqueous and semi-dry carbonated recycled concrete pastescitations
- 2023Enforced carbonation of cementitious materialscitations
- 2022Hydration and mixture design of calcined clay blended cements:review by the RILEM TC 282-CCLcitations
- 2022Fast Room-Temperature Mg 2+ Conductivity in Mg(BH 4 ) 2 ·1.6NH 3 -Al 2 O 3 Nanocompositescitations
- 2022Characterization of supplementary cementitious materials and their quantification in cement blends by solid-state NMRcitations
- 2022Semi-dry carbonation of recycled concrete pastecitations
- 2022Hydration and mixture design of calcined clay blended cements: review by the RILEM TC 282-CCL
- 2022Polymorphism, ionic conductivity and electrochemical properties of lithium closo -deca- and dodeca-borates and their composites, Li 2 B 10 H 10 -Li 2 B 12 H 12citations
- 2021Co 2 mineralization of demolished concrete wastes into a supplementary cementitious material – a new ccu approach for the cement industrycitations
- 2021Effect of alkalis on enforced carbonation of cement paste:Mechanism of reactioncitations
- 2021Creep in reactive colloidal gels:A nanomechanical study of cement hydratescitations
- 2020Probing the validity of the spinel inversion model: a combined SPXRD, PDF, EXAFS and NMR study of $ZnAl_{2}O_{4}$citations
- 2020Impact of Mg substitution on the structure and pozzolanic reactivity of calcium aluminosilicate (CaO-Al 2 O 3 -SiO 2 ) glassescitations
- 2020Effect of carbonated cement paste on composite cement hydration and performancecitations
- 2020Influence of low curing temperatures on the tensile response of low clinker strain hardening UHPFRC under full restraintcitations
- 2020Probing the validity of the spinel inversion model:a combined SPXRD, PDF, EXAFS and NMR study of ZnAl 2 O 4citations
- 2019Optical sensing of ph and o 2 in the evaluation of bioactive self-healing cementcitations
- 2019Sulfate resistance of calcined clay – limestone – Portland cementscitations
- 2019Structure and reactivity of synthetic CaO-Al 2 O 3 -SiO 2 glassescitations
- 2019Optical sensing of ph and o2 in the evaluation of bioactive self-healing cementcitations
- 2019Reactivity of supplementary cementitious materials (SCMs) in cement blendscitations
- 2018Structural Investigation of Ye'elimite, Ca4Al6O12SO4, by 27Al MAS and MQMAS NMR at Different Magnetic Fieldscitations
- 2018The Charge-Balancing Role of Calcium and Alkali Ions in Per-Alkaline Aluminosilicate Glassescitations
- 2018Structural Investigation of Ye'elimite, Ca 4 Al 6 O 12 SO 4 , by 27 Al MAS and MQMAS NMR at Different Magnetic Fieldscitations
- 2017Hydrate Phase Assemblages in Calcium Sulfoaluminate - Metakaolin - Limestone Blendscitations
- 2017Friedel's salt profiles from thermogravimetric analysis and thermodynamic modelling of Portland cement-based mortars exposed to sodium chloride solutioncitations
- 2017Physical performances of alkali-activated portland cement-glass-limestone blendscitations
- 2017Early stage dissolution characteristics of aluminosilicate glasses with blast furnace slag- and fly-ash-like compositionscitations
- 2017The structure-directing amine changes everything:Structures and optical properties of two-dimensional thiostannatescitations
- 2016Experimental studies and thermodynamic modeling of the carbonation of Portland cement, metakaolin and limestone mortarscitations
- 2016Pozzolanic reactivity of pure calcined clayscitations
- 2015TC 238-SCM: hydration and microstructure of concrete with SCMs: State of the art on methods to determine degree of reaction of SCMscitations
- 2015TC 238-SCM: hydration and microstructure of concrete with SCMs:State of the art on methods to determine degree of reaction of SCMscitations
- 2014$mathrm{(NH_{4})_{4}Sn_{2}S_{6}·3H_{2}O}$: Crystal Structure, Thermal Decomposition, and Precursor for Textured Thin Filmcitations
- 2014A novel intermediate in the LiAlH4–LiNH2 hydrogen storage systemcitations
- 2014Hydrogen reversibility of LiBH₄-MgH₂-Al compositescitations
- 2008Microstructure engineering of Portland cement pastes and mortars through addition of ultrafine layer silicatescitations
- 2008Microstructure engineering of Portland cement pastes and mortars through addition of ultrafine layer silicates.
Places of action
| Organizations | Location | People |
|---|
article
Microstructure engineering of Portland cement pastes and mortars through addition of ultrafine layer silicates
Abstract
Pozzolanic submicron-sized silica fume and the non-pozzolanic micron- and nano-sized layer silicates (clay minerals) kaolinite, smectite and palygorskite have been used as additives in Portland cement pastes and mortars. These layer silicates have different particle shape (needles and plates), surface charge, and size (micron and nano). The structure of the resulting cement pastes and mortars has been investigated by atomic force microscopy (AFM), helium porosimetry, nitrogen adsorption (specific surface area and porosity), low-temperature calorimetry (LTC) and thermal analysis. The main result is that the cement paste structure and porosity can be engineered by addition of selected layer silicates having specific particle shapes and surface properties (e.g., charge and specific surface area). This seems to be due to the growth of calcium-silicate hydrates (C-S-H) on the clay particle surfaces, and the nano-structure of the C-S-H depends on type of layer silicate. The effect of layer silicate addition is most pronounced for palygorskite and smectite having the largest surface area and negative charges on the particle surfaces. The cement pastes containing palygorskite and bentonite have, in comparison to the pure cement pasta and the paste containing kaolinite, a more open pore structure consisting of fine pores. Silica fume paste contains a significant amount of closed pores. As a secondary result, it is demonstrated that both the degree and duration of sample drying strongly modifies the structure of the cementitious materials under investigation.