Effect of the initial temperature on the water-reducing performance of polycarboxylate-based superplasticizers

DOI

10.2991/mebe-15.2015.51How to use a DOI?

Keywords

Superplasticizers; Water-reducing Performance; Initial temperature; Fluidity

Abstract

In order to study the effect of the temperature of reaction system on the properties of polycarboxylate-based superplasticizers (PC) and on the cement workability, the PC are synthesized in different initiatory temperature from 10 to 40 . Fourier transform infrared spectroscopy (FTIR), and gel permeation chromatography (GPC) are used for structural characterization. The experimental data show that the PCs synthesized at different initiatory temperature have similar functional groups but disparate molecular weight and its distribution. As a result, the PCs synthesized at the higher initiatory temperature of reaction system possess lower molecular weight and narrower distribution, resulting in higher initial fluidity but smaller fluidity retention capacity.

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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TY  - CONF
AU  - Jinwen Wang
AU  - Guangjun Zheng
AU  - Minghua Yuan
AU  - Chong Sun
AU  - Yao Bi
PY  - 2015/04
DA  - 2015/04
TI  - Effect of the initial temperature on the water-reducing performance of polycarboxylate-based superplasticizers
BT  - Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering
PB  - Atlantis Press
SP  - 213
EP  - 217
SN  - 2352-5401
UR  - https://doi.org/10.2991/mebe-15.2015.51
DO  - 10.2991/mebe-15.2015.51
ID  - Wang2015/04
ER  -