Impact of Ethylene Glycol Addition on the Physico-Chemical and Mechanical Properties of Alkali Activated GGBFS Pastes
International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
www.ijsr.net | Open Access | Fully Refereed | Peer Reviewed International Journal

ISSN: 2319-7064

Research Paper | Chemical Engineering | Egypt | Volume 4 Issue 5, May 2015

Impact of Ethylene Glycol Addition on the Physico-Chemical and Mechanical Properties of Alkali Activated GGBFS Pastes

H. El Didamony, A. Amer, M. Arif

This paper aims at study the effect of ethylene glycol (EG) addition on the physico-chemical and mechanical properties of alkali activated slag (AAS) pastes. Ground granulated blast-furnace slag (GGBFS) was activated by 6 wt., % sodium hydroxide (SH). 0, 2.5, 5, 7.5, and 10 wt., % of EG were added to AAS paste. The results show that, the setting times of AAS pastes elongate with the addition of EG. The drying shrinkage of AAS was reduced by ~ 7, 28, 53 and 68 % in case of AAS containing 2.5, 5, 7.5 and 10 wt., % compared to control sample at 90 days. The chemically combined water contents increased with EG mass as, % at early ages of curing up to 7 days. The wet compressive strength decreased with the addition of EG. In contrast, the compressive strength of AAS pastes dried at 80C for 24 h increased with EG percentage up to 7.5 wt., %. A significant reduction in compressive strength was observed in AAS containing 10 wt., % EG at all ages of curing. Dry AAS pastes containing 0, 2.5 and 5 wt., % showed a compressive strength regression at 90 days. The TG, DTG, FTIR and SEM proved that, the rate of polymerization of EG increases with time.

Keywords: AAS, EG, compressive strength, polymerization, GGBFS

Edition: Volume 4 Issue 5, May 2015

Pages: 1596 - 1605

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H. El Didamony, A. Amer, M. Arif, "Impact of Ethylene Glycol Addition on the Physico-Chemical and Mechanical Properties of Alkali Activated GGBFS Pastes", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=SUB154429, Volume 4 Issue 5, May 2015, 1596 - 1605

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