A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The influence of ethanol-diisopropanolamine on the hydration and mechanical properties of Portland cement
HighlightsEDIPA accelerates the hydration of aluminate and ferrite phase, promoting hydration heat release rate.EDIPA accelerates the hydration of alite and the formation of CH.AFt is converted to AFm with EDIPA present.When EDIPA introduced, the mechanical properties of mortars enhances for 28d.
AbstractThe effect of ethanol-diisopropanolamine (EDIPA) on the hydration and mechanical properties of Portland cement was focused on in this study. A combination of isothermal calorimetry, X-ray powder diffraction (XRD) and differential scanning calorimetry (DSC)-thermogravimetric (TG) analysis was used to investigate the hydration kinetics of Portland cement with EDIPA. Strength tests were conducted to study the effect of EDIPA on Portland cement mortars. The results indicate that EDIPA hinders the formation of ettringite (AFt), decelerates the dissolution of gypsum, and accelerates the hydration rate of the aluminate and ferrite phase and the transformation of AFt to AFm. Additionally, EDIPA also accelerates the hydration of alite and the formation of portlandite (CH), and remarkably enhances the mechanical properties at 28d. Such strength-enhancing mechanism is probably similar to TIPA.
The influence of ethanol-diisopropanolamine on the hydration and mechanical properties of Portland cement
HighlightsEDIPA accelerates the hydration of aluminate and ferrite phase, promoting hydration heat release rate.EDIPA accelerates the hydration of alite and the formation of CH.AFt is converted to AFm with EDIPA present.When EDIPA introduced, the mechanical properties of mortars enhances for 28d.
AbstractThe effect of ethanol-diisopropanolamine (EDIPA) on the hydration and mechanical properties of Portland cement was focused on in this study. A combination of isothermal calorimetry, X-ray powder diffraction (XRD) and differential scanning calorimetry (DSC)-thermogravimetric (TG) analysis was used to investigate the hydration kinetics of Portland cement with EDIPA. Strength tests were conducted to study the effect of EDIPA on Portland cement mortars. The results indicate that EDIPA hinders the formation of ettringite (AFt), decelerates the dissolution of gypsum, and accelerates the hydration rate of the aluminate and ferrite phase and the transformation of AFt to AFm. Additionally, EDIPA also accelerates the hydration of alite and the formation of portlandite (CH), and remarkably enhances the mechanical properties at 28d. Such strength-enhancing mechanism is probably similar to TIPA.
The influence of ethanol-diisopropanolamine on the hydration and mechanical properties of Portland cement
Lu, Xiaolei (author) / Ye, Zhengmao (author) / Zhang, Lina (author) / Hou, Pengkun (author) / Cheng, Xin (author)
Construction and Building Materials ; 135 ; 484-489
2016-12-29
6 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2017
The Influence of Ethanolamines on the Hydration and Mechanical Properties of Portland Cement
| British Library Online Contents | 1996
The Influence of Ethanolamines on the Hydration and Mechanical Properties of Portland Cement
| Online Contents | 1996