Study on Hydration and Mechanical Property of Portland Cement-Blended Recycled Plaster Materials

In this work, Portland cement- (OPC-) blended recycled plaster materials (R-CP) were prepared to find out their hydration and mechanical properties. It was found that the hydration of R-CP was accelerated by the rapid rehydrated ettringite (AFt), and the strength of R-CP was decreased by the reduced...

Full description

Saved in:
Bibliographic Details
Published inAdvances in materials science and engineering Vol. 2018; no. 2018; pp. 1 - 8
Main Authors Ma, Xianwei, Wang, Jina, Peng, Jiahui, Xu, Kaidong, Li, Zhixin, Niu, Jishou
Format Journal Article
LanguageEnglish
Published Cairo, Egypt Hindawi Publishing Corporation 01.01.2018
Hindawi
Hindawi Limited
Subjects
Calcium carbonate
Calcium compounds
Cement
Ettringite
Hydration
Mechanical properties
Pastes
Portland cements
Recycled materials
Recycling
Slaked lime
Strength
Online AccessGet full text

Cover

More Information
Summary:In this work, Portland cement- (OPC-) blended recycled plaster materials (R-CP) were prepared to find out their hydration and mechanical properties. It was found that the hydration of R-CP was accelerated by the rapid rehydrated ettringite (AFt), and the strength of R-CP was decreased by the reduced hemihydrate content and low strength of rehydrated AFt and CaCO3. On the contrary, consistent with the previous studies, the strength of OPC-blended plaster of Paris materials (POCP) was improved by the formation of AFt, Ca(OH)2, and CaCO3 that filled pores in the pastes. Therefore, a different strength development could be seen in POCP and R-CP. In principle, these findings will lay a solid ground work for the utilization of recycled plaster.
ISSN:1687-8434
1687-8442
DOI:10.1155/2018/2692347