The Polycarboxylate-based Superplasticizers Modified with thickening agents: the performance and Influece on Cement Hydration
- DOI
- 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/).
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 - 10.2991/icadme-15.2015.369 ID - Feng2015/10 ER -