Influence of Triethanolamine on Strength Development and Hydration of Cementitious Systems Blended with Titanium Slag

Abstract:

This paper investigates the influence of triethanolamine (TEA) on strength development and hydration of cement pastes and mortars incorporated with titanium slag (50% by mass of the total cementitious materials). The techniques including isothermal calorimetry, non-evaporative water content, and mercury intrusion porosimetry (MIP) were employed to characterize the hydration process at varied ages. The results show that: 1) 0.01%~0.10% addition of TEA has a positive effect on the strength development of blended cement mortars with titanium slag indicated by improved compressive strength and tensile strength; 2) TEA leads to an increase of hydration degree determined by measurement of isothermal calorimetry and non-evaporable water content before 28 d; 3) the cumulative porosity of cement pastes incorporated with titanium slag was reduced by TEA. Therefore, 0.01%~0.10% addition of TEA promotes the hydration of titanium slag, then forming more condensed structures, thus enhance the strength development of blended systems.

• Periodical: Materials Science Forum (Volume 898)
• Pages: 1984-1989
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.898.1984
• Online since: June 2017
• Authors: Hui Liu*, Su Ping Cui, Jian Feng Wang, Song Ge Yang, Xue Li Wang, Cong Wei Liu
• Keywords: Cementitious System, Hydration, Strength, Titanium Slag, Triethanolamine

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