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Activation of LC3 binders by C-S-H nucleation seeding with a new tailored admixture for low-carbon cements.
(Ernst & Sohn GmbH, 2023-12-06)
The use of supplementary cementitious materials is currently the most favorable
strategy for reducing CO2 emissions in cements. Limestone Calcined Clay Cements,
LC3, are a type of cement that allows the reduction of CO2 ...
Effect of boron and water-to-cement ratio on the performances of laboratory prepared Belite-Ye'elimite-Ferrite (BYF) cements
(2021)
The effect of superplasticiser, borax and the water-to-cement ratio on BYF hydration and
mechanical strengths has been studied. Two laboratory-scale BYF cements—st-BYF (with -C2S
and orthorhombic C4A3 S) and borax-activated ...
Phase and microstructure evolutions in LC3 binders by multi-technique approach including synchrotron microtomography
(Elsevier, 2021-06-19)
Limestone Calcined Clay Cements, LC3, are attracting a lot of attention as it is possible to reduce the clinker
factor by 50%, which means a cement CO2 footprint reduction of 40%. This is compatible with maintaining
the ...
Early-age reactivity of calcined kaolinitic clays in LC3 cements: a multitechnique investigation including pair distribution function analysis
(Taylor & Francis, 2022-09)
Limestone Calcined Clay Cements, LC3, allows CO2 emissions savings up to 40%. The resulting binders have competitive mechanical performances after a week. However, the reactivity of LC3 at early ages is slow and should be ...
Clinkering of calcium sulfoaluminate clinkers: polymorphism of ye'elimite
(2018)
The manufacture of CSA cements is more environmentally friendly than that of OPC as it releases
less CO2. This reduction depends on CSA composition and is due to three factors: i) less emissions
from decarbonation in the ...
Multiscale understanding of tricalcium silicate hydration reactions
(Nature Publishing Group, 2018-06)
Tricalcium silicate, the main constituent of Portland cement, hydrates to produce crystalline calcium
hydroxide and calcium-silicate-hydrates (C-S-H) nanocrystalline gel. This hydration reaction is poorly
understood at ...
Limestone calcined clay binders based on a Belite-rich cement
(Elsevier, 2023)
Portland-based Limestone Calcined Clay Cements, LC3, are receiving considerable attention because the CO2 footprint can be reduced up to 40 %. Here, we report a related family: Belite-rich-LC3. These blends are expected ...
Synchrotron Pair Distribution Function analyses of Ye’elimite-based pastes
(2018-10-15)
The study of nanocrystalline phase atomic ordering is intrinsically complicated. The presence of additional crystalline phase(s) exacerbates this challenge. Here, we use the synchrotron pair distribution function (PDF) to ...
Quantitative disentanglement of nanocrystalline phases in cement pastes by synchrotron ptychographic X-ray tomography
(IUCr, 2019)
Mortars and concretes are ubiquitous materials with very complex hierarchical microstructures. To fully understand their main properties and to decrease their CO2 footprint, a sound description of their spatially resolved ...
Synthesis of active Belite-Alite-Ye'elimite clinker (BAY)
(2016-06-29)
Ordinary Portland cement (OPC) is an environmentally contentious material, as for every ton of OPC produced, on average, 0.97 tons of CO2 are released. Ye'elimite-rich cements are considered as eco-cements because their ...