Preparation and Mechanical Performance of Supplementary Cementing Materials Cementitious by Electroplating Sludge

Chang Sen Zhang; Xue Su Gu; Jie Gao; Yu Yang; Bao Gui Zhu

doi:10.4028/www.scientific.net/KEM.837.133

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 837Preparation and Mechanical Performance of...

Preparation and Mechanical Performance of Supplementary Cementing Materials Cementitious by Electroplating Sludge

Abstract:

Preparation, microstructure and mechanical performance of novel supplementary cementing materials prepared with electroplating sludge and steel slag as raw materials were studied. It was found that the electroplating sludge could be mixed with steel slag at appropriate ratios to make SCMs that posse certain compressive strength. The results shows that the supplementary cementing materials prepared in this article can increase the compressive strengths of cement when it substitutes for cement in appropriate proportion. The microstructure and hydration products of cement with SCMs were examined by XRD and SEM. The results indicated that the content of calcium hydroxide formed in paste significantly reduced and Aft increased, as the content of the supplementary cementing materials increased. In addition, the heavy metals elements in the electroplating sludge could be effective cured in cement pastes and reduced the pollution to the environment.

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Periodical:

Key Engineering Materials (Volume 837)

Pages:

133-138

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.837.133

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Online since:

April 2020

Authors:

Chang Sen Zhang*, Xue Su Gu, Jie Gao, Yu Yang, Bao Gui Zhu

Keywords:

Electroplating Sludge, Mechanical Performance, Preparation, Supplementary Cementing Materials

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