Analysis on Calcination of Cementitous Powder of Waste Concrete for Raw Cement

Eun Hee Kwon; Young Jun Lee; Gyu Hwan Cho; Cheon Park Dong

doi:10.4028/www.scientific.net/AMR.831.267

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 831Analysis on Calcination of Cementitous Powder of...

Analysis on Calcination of Cementitous Powder of Waste Concrete for Raw Cement

Abstract:

The purpose of this study is to determine whether cementitous powder of waste concrete which is separated from waste concrete can be used as alternative raw material for limestone. Chemical composition of cementitous powder of waste concrete was actually analyzed and the experiment to measure the recovery of hydration of waste cementitous powder model was performed. As a result, hydration was recovered to the level at which it can be used as alternative raw material for limestone, but less than 10 % can be used due to mix of fine aggregate in less than 150μm which cannot be separated from cementitous powder. Therefore, development of technology to efficiently separate cementitous powder of fine aggregate is required to have the alternative material for limestone and effect for reduction of greenhouse gas.

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Periodical:

Advanced Materials Research (Volume 831)

Pages:

267-271

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.831.267

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Online since:

December 2013

Authors:

Eun Hee Kwon*, Young Jun Lee, Gyu Hwan Cho, Cheon Park Dong

Keywords:

Cementitous Powder of Waste Concrete, Powder of Fine Aggregate, Recycled Cement

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References

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