The Improvements for the Siliceous Self-Flow Castable with Adding Nano SiO2

Lin Shi; Hua Zhi Gu; Shuang Long Li; Jing Jing Zhu

doi:10.4028/www.scientific.net/KEM.726.445

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Effect of Additives and Carbon Resources on Thermal Shock Resistance of Spinel-C Material
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The Improvements for the Siliceous Self-Flow Castable with Adding Nano SiO₂
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Application of Electromagnetic Field Theory in the Study of Iron-Rich Slag Resistance Mechanism of Low Carbon MgO-C Refractories
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 726The Improvements for the Siliceous Self-Flow...

The Improvements for the Siliceous Self-Flow Castable with Adding Nano SiO₂

Abstract:

In order to make up for the deficiencies due to the molding process,and improve the mechanical properties and sintering performance of self-flow castable,in this paper, we used nano SiO₂ which had high surface activity as admixture. We added 0wt%, 0.1wt%, 0.2wt%, 0.3wt% of nano SiO₂, and then test the linear change, Flexural strength, compressive strength,and refractoriness under load after dried at 110°Cfor 24h and heat treatment at 1400°C for 8h.The results showed that: with the increase of nano SiO₂, self-flow value of self-flow castablel decreased, the flexural strength and compressive strength of the sample increased after dried at 110°C for 24 h, the strength of the self-flow castable was improved after formed.After heat treatment at 1400°C for 8h, linear change of the sample remained the same, Tridymite content, flexural strength and compressive strength increased, apparent porosity decreased, refractoriness under load lowered.

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Periodical:

Key Engineering Materials (Volume 726)

Pages:

445-449

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.726.445

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Online since:

January 2017

Authors:

Lin Shi*, Hua Zhi Gu, Shuang Long Li, Jing Jing Zhu

Keywords:

Cold Strength, Nano SiO₂, Self-Flow Castable, Tridymite

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References

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