Effects of APC on Hydration and Microstructure of Portland Lime-Mud Cement

DOI

10.2991/ammee-17.2017.153How to use a DOI?

Keywords

pulp mill lime mud, cement, grinding aids, hydration, microstructure.

Abstract

This Through the measurement of the hydration heat, the thermo analysis, SEM observation, and analysis on pore structure of the cement paste, we did the research on the effects of Alcamine Periodic Copolymer (APC) grinding aids on hydration and microstructure of Portland Lime-Mud Cement (PLMC). The result indicates that APC can significantly improve the strength of PLMC at ages. Within twelve hour hydration, APC surrounding cement particles slows down the hydration of C3S and C3A, whereas accelerates the hydration in the later stages by lubricating when the surrounding layer is released after twelve hours. The air entrainment by APC broadens overall porosity distribution in the early stage of cement and SEM observation reveals many pores in the cement. In the later stages of hydration, the porosity ratio is decreased and SEM shows increased volumes of interleaved hydration products and denser cement structure.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Lihua Zhang
AU  - Yunshang Zhang
AU  - Laibao Liu
PY  - 2017/06
DA  - 2017/06
TI  - Effects of APC on Hydration and Microstructure of Portland Lime-Mud Cement
BT  - Proceedings of the Advances in Materials, Machinery, Electrical Engineering (AMMEE 2017)
PB  - Atlantis Press
SP  - 794
EP  - 799
SN  - 2352-5401
UR  - https://doi.org/10.2991/ammee-17.2017.153
DO  - 10.2991/ammee-17.2017.153
ID  - Zhang2017/06
ER  -