Results 151 to 160 of about 49,645 (208)

Germany: Wacker – fumed silica

open access: yesFocus on Pigments, 2010
openaire   +1 more source

US: Cabot – fumed silica

open access: yesFocus on Pigments, 2017
openaire   +1 more source

Robustness as a tool to improve the durability of self-compacting concrete

open access: yes, 2017
De Schutter, Geert   +4 more
core  

Alkali silica reactivity of agglomerated silica fume

Cement and Concrete Research, 2007
It is commonly accepted that replacement of a portion of cement in mortar or concrete with well-dispersed silica fume reduces expansion caused by alkali silica reaction. Recently there has been much discussion that large, agglomerated particles of silica fume may actually act as alkali silica reactive aggregates, thereby increasing expansion rather ...
Andrew J Maas   +2 more
exaly   +2 more sources

Determination of crystalline silica in silica fume

Talanta, 1994
Silica fume is formed as a by-product in the manufacture of silicon from quartzite. This paper describes an analytical method for the determination of crystalline silica in silica fume. The crystalline silica was determined after removal of amorphous silica from the fume. A gravimetric method was developed for the determination of the total crystalline
A, Fletcher, D, Phillips, I, Barrow
openaire   +2 more sources

Polydimethylsiloxane at the interfaces of fumed silica and zirconia/fumed silica

Applied Surface Science, 2007
Abstract Polydimethylsiloxane (PDMS)/fumed silica A-300 and PDMS/ZrO2/A-300 were studied using adsorption, thermogravimetry, temperature-programmed desorption (TPD) mass-spectrometry, infrared spectroscopy, XRD, and broadband dielectric relaxation spectroscopy. ZrO2 was synthesized on fumed silica with zirconium acetylacetonate in CCl4 at 350 K for 1 
V.M. Gun’ko   +7 more
openaire   +1 more source

Wet-Mix silica Fume Shotcrete: Effect of Silica Fume Form

"SP-132: Fly Ash, Silica Fume, Slag, and Natural Pozzolans and Natural Pozzolans in Concrete - Proceedings Fourth Interna", 1992
This study investigated the influence of the different forms of silica fume on the plastic and hardened porperties of wet-mix shotcrete. The silica fume forms studied were: uncompacted silica fume; compacted low density silica fume; compacted high density silica fume.
openaire   +1 more source

Morphology and surface properties of fumed silicas

Journal of Colloid and Interface Science, 2005
Several series of fumed silicas and mixed fumed oxides produced and treated under different conditions were studied in gaseous and liquid media using nitrogen and water adsorption-desorption, mass spectrometry, FTIR, NMR, thermally stimulated depolarization current (TSDC), photon correlation spectroscopy (PCS), zeta potential, potentiometric titration,
V M, Gun'ko   +18 more
openaire   +2 more sources

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