Publication
Influence of calcium and magnesium carbonates on hydration kinetics, hydrate assemblage and microstructural development of metakaolin containing composite cements
Publications associées (36)
Limestone calcined clay cements (LC3): raw material processing, sulfate balance and hydration kinetics
Franco Alberto Zunino Sommariva
Limestone calcined clay cements (LC3) are blended cements that combine clinker, limestone, calcined clay and gypsum. The availability of the materials required to produce LC3 and the good performance that it achieves, makes LC3 suitable as a sustainable re ...
EPFL2020The Influence of some calcined clays from Nigeria as clinker substitute in cementitious systems
Karen Scrivener, François Henri Avet, Akindehinde Ayotunde Akindahunsi
This paper examines the possibility of the use of some clays calcined from Nigeria as partial substitutes for clinker in the production of Limestone Calcined Clay Cement (LC3). The clays were calcined in the oven at a temperature of 800 degrees C and for o ...
ELSEVIER2020Investigation of the use of Limestone Calcined Clay Cement (LC3) applied to Thailand
The replacement of clinker with supplementary cementitious materials (SCMs) is the most interesting solution to reduce the CO2 emissions from cement production. The abundant availability of clays, which have a sufficient amount of kaolinite content in Thai ...
EPFL2019Impact of sodium gluconate on white cement-slag systems with Na2SO4
Karen Scrivener, Berta Mota Gassó, Thomas Matschei
Sodium gluconate has been shown to compensate the impact of alkalis on the long term strength development of cement pastes. This work studies the impact of sodium gluconate combined with Na2SO4 on the microstructural development of white cement-slag system ...
PERGAMON-ELSEVIER SCIENCE LTD2019Concrete Performance of Limestone Calcined Clay Cement (LC3) Compared with Conventional Cements
Karen Scrivener, Lionel Sofia, François Henri Avet
This study aims to demonstrate the robustness of concrete made of limestone calcined clay cement (LC3). Two campaigns were carried out using 375 kg.m(-3) and 500 kg.m(-3) of binder and targeting plastic and self-placing workability, respectively. The concr ...
AMER SOC TESTING MATERIALS2019Tuning the Incorporation of Magnesium into Calcite during Its Crystallization from Additive-Free Aqueous Solution
Esther Amstad, Camelia Borca, Huachuan Du
Under ambient conditions, marine organisms are able to synthesize a variety of functional materials, ranging from eye lenses to protective shells through the meticulous control over magnesium incorporation into calcite during its crystallization. The mecha ...
AMER CHEMICAL SOC2019Reactivity and Performance of Limestone Calcined-Clay Cement (LC3) Cured at Low Temperature
Karen Scrivener, Franco Alberto Zunino Sommariva
Limestone calcined-clay cements (LC3) take advantage of the synergetic effects of calcium carbonate reaction with the additional aluminium provided by the calcined clay. As temperature decreases, calcium carbonate solubility increase, therefore, the early- ...
SPRINGER2018Effect of Ions and Admixtures on the Growth of Synthetic Calcium Silicate Hydrate (C-S-H)
This thesis investigates the effect of different parameters such as Fe (III), D-gluconate and heterogeneous particles on the nucleation and growth of synthetic C-S-H by using the dropwise precipitation method. Firstly, the effect of Fe (III) on the synthet ...
EPFL2018Low-temperature curing strength enhancement in cement-based materials containing limestone powder
Franco Alberto Zunino Sommariva
With the ongoing sustainability movement, the incorporation of limestone powder in cementitious binders for concrete in the U.S. has become a subject of renewed interest. In addition to accelerating the early age hydration reactions of cementitious systems ...
Springer2017Investigation of the grade of calcined clays used as clinker substitute in Limestone Calcined Clay Cement (LC3)
The combination of calcined kaolinitic clays and limestone in Limestone Calcined Clay Cement (LC3) is a promising approach to reduce the cost and the CO2 emissions of cement production by reducing the clinker content of cement. This thesis investigates the ...
EPFL2017