Results 31 to 40 of about 65,311 (166)
Synthesis and Characteristic of Precipitated Nano-Silica [PDF]
JOURNAL OF ADVANCES IN CHEMISTRY, 2013 The reaction of precipitation of amorphous silicon dioxide from aqueous solution of sodium silicate and sulfuric acid has been studied. The factors affecting the precipitation process of the sodium silicate solution such as sodium silicate concentration and addition of anionic surfactant (sodium dodecyl sulfate, SDS) on particle size, size distribution
Sadeghi, Mohammad +2 more
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Nano-silica added to Portland cement
Acta Scientiarum: Technology, 2021 For a controlled particle size distribution, nano-silica was added to three different cements. The chemical and mineralogical compositions of the cements were characterized by fluorescence and X-ray diffraction.
Thiago Melanda Mendes +1 more
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The effect of silica Fibers on the compressive strength and tensile strength of light concrete [PDF]
مجله علوم و فنون هستهای, 2019 In the feasibility studies used for the correct use of this side product, it was decided to investigate the effect of this substance in a light concrete.
P Khoshkalamyan, S.M Ghoreishi
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Durability performances of concrete with nano-silica [PDF]
Construction and Building Materials, 2014 This study investigated the durability properties of concrete containing nano-silica at dosages of 0.3% and 0.9%, respectively. Due to the nano-filler effect and the pozzolanic reaction, the microstructure became more homogeneous and less porous, especially at the interfacial transition zone (ITZ), which led to reduced permeability.
Du, Hongjian, Du, Suhuan, Liu, Xuemei
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The effect of silica morphology on properties of PVA/silica nano-composites
Chinese Journal of Polymer Science, 2013 Two kinds of poly(vinyl alcohol) (PVA)-silica composites were prepared with different methods. One composite was prepared by directly mixing PVA with 80 nm silica nano-particles which were made from tetraethoxysilane (TEOS). The another was obtained by the mixing PVA and hydrolyzed TEOS in the presence of acid-catalyst.
Lei Bi +3 more
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Nano Silica and Micro Silica Effect on Mechanical Attributes of Ferrochrome Slag Based Geopolymer
Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2020 Considering globaltrends in sustainable and green development as well as the major drawbacks ofconventional hydraulic cement, accelerate attempt for finding a suitablealternative and likely cause further development of geopolymeric cements infuture ...
Mehrzad Mohabbı
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eXPRESS Polymer Letters, 2021 The processing method of a polymer composite plays an important role in determining the filler morphology inside the polymer matrix, which in turn influences the overall properties of the composite.
G. Neena +4 more
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Effect of nano silica on cement mortars containing micro silica
Challenge Journal of Concrete Research Letters, 2019 The use of cement and concrete is becoming increasingly widespread all over the world. However, the high energy consumption required for the production of clinker and the greenhouse gas emissions generated during production negatively affect both the economy and the environment.
İlknur Bekem Kara, Ömer Furkan Durmuş
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Effects of Micro-silica and Nano-silica on Fresh Properties of Mortar
Materials Science, 2017 Like micro-silica (MS), nano-silica (NS) can also be considered as a supplementary cementitious material for production of high-performance mortar and concrete. To investigate the influence of MS and NS on the fresh properties of mortar or the mortar phase of concrete, an experimental program encompassing mortar mixes with various water, cement, MS and
Leo Gu LI +4 more
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Case Studies in Construction MaterialsHydrogel-based self-healing mortar often experiences strength decrease that may impact concrete performance under mechanical load. While the addition of commercial colloidal nano silica can improve the strength of hydrogel-based self-healing mortar, they
Puput Risdanareni +6 more
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