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Effect of phosphate on the hydration of alkali-activated red mud-slag cementitious material

Gong, Chunming / Yang, Nanru

The influence of sodium phosphate on the hydration of alkali-activated red mud-slag cementitious material (AARS) is studied through microcalorimeter, X-ray diffraction (XRD), and energy dispersive spectroscopy (EDS). It is shown that sodium phosphate decreases the hydration heat evolution and retards the hydration reaction of AARS effectively. A new phase is found to form in this system. The retarding mechanism is greatly attributed to the forming of this new phase. The composition of the new phase is identified and analyzed.

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Effect of phosphate on the hydration of alkali-activated red mud-slag cementitious material

Gong, Chunming / Yang, Nanru

The influence of sodium phosphate on the hydration of alkali-activated red mud-slag cementitious material (AARS) is studied through microcalorimeter, X-ray diffraction (XRD), and energy dispersive spectroscopy (EDS). It is shown that sodium phosphate decreases the hydration heat evolution and retards the hydration reaction of AARS effectively. A new phase is found to form in this system. The retarding mechanism is greatly attributed to the forming of this new phase. The composition of the new phase is identified and analyzed.

Effect of phosphate on the hydration of alkali-activated red mud-slag cementitious material

Gong, Chunming / Yang, Nanru

The influence of sodium phosphate on the hydration of alkali-activated red mud-slag cementitious material (AARS) is studied through microcalorimeter, X-ray diffraction (XRD), and energy dispersive spectroscopy (EDS). It is shown that sodium phosphate decreases the hydration heat evolution and retards the hydration reaction of AARS effectively. A new phase is found to form in this system. The retarding mechanism is greatly attributed to the forming of this new phase. The composition of the new phase is identified and analyzed.

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Title:

Effect of phosphate on the hydration of alkali-activated red mud-slag cementitious material

Contributors:

Gong, Chunming (author) / Yang, Nanru (author)

Published in:

Cement and Concrete Research ; 30 ; 1013-1016

Publication date:

2000

Size:

4 Seiten, 6 Quellen

ISSN:

DOI:

https://doi.org/10.1016/S0008-8846(00)00260-X

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Hydratisieren , Phosphat , Konzentrationseinfluss , Kalorimetrie , Röntgenbeugung , Röntgenanalyse , energiedispersive Spektrometrie , Phasenumwandlung , Reaktionskinetik , Natriumphosphat , Schlackenzement , Hydratationswärme , Mikrokalorimetrie

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