Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering

The Polycarboxylate-based Superplasticizers Modified with thickening agents: the performance and Influece on Cement Hydration

Authors
Jing Feng, Jiaxiang Li, Liang Chen, Pengxiang Li, Zaiqin Wang
Corresponding Author
Jing Feng
Available Online October 2015.
DOI
https://doi.org/10.2991/icadme-15.2015.369How to use a DOI?
Keywords
Polycarboxylate-based superplasticizer, thickening agent, water-reducing ratio, compressive strength, cement hydration.
Abstract

The application of effective superplasticizer is helpful to improve the working performance and durability of concrete. In our work, several high performance polycarboxylate-based superplasticizers were prepared by modifying the commercial products with two types of thickening agents. Their dispersion ability for cement was investigated by fluidity and bleeding tests, while their influences on mortar working performance were evaluated based on the water-reducing ratio and the compressive strength experiments. The hydrated products of cement mortar were characterized by SEM and DSC-TGA technologies as well. Results indicated that three types of superplasticizers, including PCA, PCA-1 and PCA-2, exhibited good cement compatibility and water-reducing effects. These superplasticizers delayed the initial period of cement hydration, and made the hydration products of mortar develop into the more compact and ordered structures, consequently leading to the higher compressive strength.

Copyright
© 2015, 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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Volume Title
Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering
Series
Advances in Engineering Research
Publication Date
October 2015
ISBN
978-94-6252-113-1
ISSN
2352-5401
DOI
https://doi.org/10.2991/icadme-15.2015.369How to use a DOI?
Copyright
© 2015, 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/).

Cite this article

TY  - CONF
AU  - Jing Feng
AU  - Jiaxiang Li
AU  - Liang Chen
AU  - Pengxiang Li
AU  - Zaiqin Wang
PY  - 2015/10
DA  - 2015/10
TI  - The Polycarboxylate-based Superplasticizers Modified with thickening agents: the performance and Influece on Cement Hydration
BT  - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering
PB  - Atlantis Press
SP  - 1995
EP  - 1999
SN  - 2352-5401
UR  - https://doi.org/10.2991/icadme-15.2015.369
DO  - https://doi.org/10.2991/icadme-15.2015.369
ID  - Feng2015/10
ER  -