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Gamma-C₂S Synthesis from Fly Ash of Fluidize-Bed Boiler for CO₂ Capture

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Na S., Kang S., Lee S., Song M.

Acta Physica Polonica A

2015

vol. 127

issue 4

1282-1285

This paper describes the CO₂ capture performance of cement blended paste incorporating gamma-dicalcium silicate (gamma-C₂S) made with industrial by-products, by taking into consideration of effect of CaCO₃, fly ash replacement ratio under the sintering process. X-ray diffraction method was conducted in order to quantitatively investigate the gamma-C₂S content. CO₂ capture performance of mortar sample incorporating gamma-C₂S was investigated by means of compressive strength test using accelerated carbonation chamber. The experimental results revealed that the kind of CaCO₃ would affect the affect the formation of gamma-C₂S after the sintering with respect to the XRD-Rietveld analysis. Moreover, it is confirmed that compressive strength of mortar sample incorporating gamma-C₂S has the same tendency at curing age of 3, 7 and 28days. Blended mortar sample made with 10 wt.% replacement ratio of gamma-C₂S had high compressive strength value compared to normal mortar sample, therefore, incorporating gamma-C₂S had a positive effect on the compressive strength after accelerated carbonation. Finally, the waste foundry sand powder may be alternative to produce gamma-C₂S.

Effect of Minor Cu Addition on the Precipitation Sequence of an As-Cast Al-Mg-Si 6005 Alloy

100%

Li K., Du Y., Song M., Fang X.

issue 2

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1 Acta Physica Polonica A

1 Archives of Metallurgy and Materials

1 2015

1 2012

2 Song M.

1 Du Y.

1 Fang X.

1 Kang S.

1 Lee S.

1 Li K.

1 Na S.

Search results

Gamma-C₂S Synthesis from Fly Ash of Fluidize-Bed Boiler for CO₂ Capture

Effect of Minor Cu Addition on the Precipitation Sequence of an As-Cast Al-Mg-Si 6005 Alloy