Publications related to Fumed silica

Alkali uptake in calcium alumina silicate hydrate (C-A-S-H)

Karen Scrivener, Barbara Lothenbach, Émilie Michèle L'Hôpital

Uptake of the alkalis K and Na by calcium silicate hydrate (C-S-H) and calcium alumina silicate hydrate (C-A-S-H) of molar Ca/Si ratios = 0.6 to 1.6 and molar Al/Si ratio = 0 or 0.05 has been studied at 20 degrees C. Alkalis are thought to be bound in the ...

Pergamon-Elsevier Science Ltd2016

The pore solution of blended cements: a review

Barbara Lothenbach, Ruben Anton Snellings

This paper is the work of working group 3 of the RILEM Technical Committee on Hydration and Microstructure of Concrete with SCM (TC 238-SCM). The pore solution is an essential but often overlooked part of hydrated cements. The composition of the cement por ...

Springer2016

Progress on femtosecond laser-based system-materials: three-dimensional monolithic electrostatic micro-actuator for optomechanics

Yves Bellouard, Tao Yang

Femtosecond laser-dielectric interaction in a three-dimensional (3D) manner defines a capable platform for integrated 3D micro-devices fabricated out of a single piece of system-material. Here, we add a new function to femtosecond laser-based single monoli ...

Spie-Int Soc Optical Engineering2016

Ketenimines from Isocyanides and Allyl Carbonates: Palladium-Catalyzed Synthesis of β,γ-Unsaturated Amides and Tetrazoles

Qian Wang, Jieping Zhu, Mathias Mamboury, Guanyinsheng Qiu

The reaction of allyl ethyl carbonates with isocyanides in the presence of a catalytic amount of Pd(OAc)2 provided ketenimines through b-hydride elimination of the allyl imidoylpalladium intermediates. The insertion of the isocyanide into the p-allyl Pd co ...

Wiley-Blackwell2016

Investigation of the micro-mechanical properties of femtosecond laser-induced phases in amorphous silica

Yves Bellouard, Christos Edouardos Athanasiou

Femtosecond pulses used in the regime where self-organized patterns are found have two noticeable effects in amorphous silica's (a-SiO2) optical and chemical properties: The decrease of the material's refractive index as well as an enhanced etching selecti ...

Spie-Int Soc Optical Engineering2016

A Monolithic Micro-Tensile Tester for Investigating Silicon Dioxide Polymorph Micromechanics, Fabricated and Operated Using a Femtosecond Laser

Yves Bellouard, Christos Edouardos Athanasiou

Mechanical testing of materials at the microscales is challenging. It requires delicate procedures not only for producing and handling the specimen to be tested, but also for applying an accurate and controlled force. This endeavor is even more challenging ...

MDPI2015

Influence of silica fume on the microstructure of cement pastes: New insights from H-1 NMR relaxometry

Karen Scrivener, Arnaud Charles Albert Muller

H-1 NMR has been used to characterise white Portland cement paste incorporating 10 wt.% of silica fume. Samples were measured sealed throughout the hydration without sample drying. Paste compositions and C-S-H characteristics are calculated based on H-1 NM ...

Pergamon-Elsevier Science Ltd2015

Composition of C-S-H in pastes with increasing levels of silica fume addition

Karen Scrivener, Barbara Lothenbach, John Espen Rossen

New results show that the microstructure development of cement–silica fume blends is very different from plain cement. Portlandite (CH) tends to precipitate as platelets and even around clinker grains as “CH rims” and is consumed by pozzolanic reaction wit ...

Pergamon-Elsevier Science Ltd2015

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Fumed silica

Alkali uptake in calcium alumina silicate hydrate (C-A-S-H)

The pore solution of blended cements: a review

Progress on femtosecond laser-based system-materials: three-dimensional monolithic electrostatic micro-actuator for optomechanics

Ketenimines from Isocyanides and Allyl Carbonates: Palladium-Catalyzed Synthesis of β,γ-Unsaturated Amides and Tetrazoles

Investigation of the micro-mechanical properties of femtosecond laser-induced phases in amorphous silica

Properties of mortars produced with reactivated cementitious materials

A Monolithic Micro-Tensile Tester for Investigating Silicon Dioxide Polymorph Micromechanics, Fabricated and Operated Using a Femtosecond Laser

Influence of silica fume on the microstructure of cement pastes: New insights from H-1 NMR relaxometry

Composition of C-S-H in pastes with increasing levels of silica fume addition

Deep-UV fluorescence lifetime imaging microscopy

Graph Chatbot

Chat with Graph Search

Ketenimines from Isocyanides and Allyl Carbonates: Palladium-Catalyzed Synthesis of β,γ-Unsaturated Amides and Tetrazoles

Composition of C-S-H in pastes with increasing levels of silica fume addition

Investigation of the micro-mechanical properties of femtosecond laser-induced phases in amorphous silica

Properties of mortars produced with reactivated cementitious materials

A Monolithic Micro-Tensile Tester for Investigating Silicon Dioxide Polymorph Micromechanics, Fabricated and Operated Using a Femtosecond Laser

Deep-UV fluorescence lifetime imaging microscopy

Alkali uptake in calcium alumina silicate hydrate (C-A-S-H)

The pore solution of blended cements: a review

Influence of silica fume on the microstructure of cement pastes: New insights from H-1 NMR relaxometry

Progress on femtosecond laser-based system-materials: three-dimensional monolithic electrostatic micro-actuator for optomechanics