Results 131 to 140 of about 65,311 (166)

Modification of nano-fibriform silica by dimethyldichlorosilane

Applied Surface Science, 2009
Abstract The modification of nano-fibriform silica by dimethyldichlorosilane was studied by transmission electron microscopy, X-ray powder diffraction, infrared spectroscopy, Raman spectroscopy, physical N2 adsorption techniques, differential thermal and thermogravimetric analysis, scanning electron microscopy, and elemental analyzer.
Lijuan Wang, Anhuai Lu, Zhiyong Xiao, Junhong Ma, Yuanyuan Li   +4 more
openaire   +1 more source

Application of nano-silica in concrete

2012
This report presents the achievements of the 2012 third quarter focusing on the application of nS in concrete. In this context, nano-silica precipitated from the olivine dissolution in acid (OnS) and nano-silica sludge (nSS) were used for the experimental work.
Quercia Bianchi, G., Hüsken, G., Brouwers, H.J.H.   +2 more
openaire   +3 more sources

USE OF NANO-SILICA FOR PREVENTING EXPANSIVE ALKALI-SILICA REACTION IN CONCRETE

2008
The effectiveness of nano-silica (NS) in preventing deleterious expansion associated with alkali-silica reaction (ASR) was assessed using concrete mixes made with two siliceous aggregates of different alkali-reactivity. Concrete mixes were also made using condensed silica fume as a reference mineral admixture.
M. BERRA, F. CARASSITI, MANGIALARDI, Teresa, PAOLINI, Antonio Evangelista, M. SEBASTIANI   +4 more
openaire   +3 more sources

From Silica Nano-Particles to Silica Gels and Beyond - Salt Induced Aggregation of Silica Nano-Particles and the Stability of Resultant Gels

2020
Aqueous silica nanoparticle suspensions are widely available and used within a number of industries. A relatively new area of application is as a grouting material for sealing narrow fractures in tunnels. While silica sols/gels have been used successfully to grout sections of tunnels the continued reliability of the grouting requires knowledge of gel ...
openaire   +1 more source

Amorphous non-nano silica spheres

2022
Disclosed herein are methods of deriving silica from biological materials, compositions of such matter, articles of manufacture and amorphous silica spheres. Evidence demonstrates what is disclosed herein to be superior to the silica obtained from sand and other non-renewable sources of silica in personal care products, particularly cosmetics.
Pintado, Manuela E., Madureira, Ana Raquel, Costa, Joana Ribeiro, Dale, Morrison, Dale, Alexander, Dale, Rhys, Huang, Yong   +6 more
openaire  

Study on reliability of concrete nano-mixture containing nano-silica

Materials Today: Proceedings, 2022
M. Venkata Rao, R. Sivagamasundari, A. Subrahmanyam Raju   +2 more
openaire   +1 more source

Effect of nano-silica in concrete; a review

Construction and Building Materials, 2021
Dheeresh Kumar Nayak, Bhaskar Sangoju
exaly  

Early-age hydration heat evolution and kinetics of Portland cement containing nano-silica at different temperatures

Construction and Building Materials, 2022
Shuai Bai, Xinchun Guan, Guoyu Li
exaly  

Durability of mortar with nano silica and carbon nano-tubes in environment

2023
Mohd Moonis Zaheer, null Varisha, Syed Danish Hasan   +2 more
openaire   +1 more source

Silica: A lung carcinogen

Ca-A Cancer Journal for Clinicians, 2014
Kyle Steenland
exaly