Quantifying glass powder reaction in blended-cement pastes with the Rietveld-PONKCS method
| Autor: | William Wilson, Arezki Tagnit-Hamou, Loic Divet, Thierry Chaussadent, Mickael Saillio, Mehdi Mejdi |
|---|---|
| Přispěvatelé: | Comportement Physico-chimique et Durabilité des Matériaux (IFSTTAR/MAST/CPDM), Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Communauté Université Paris-Est, Université de Sherbrooke (UdeS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Thermogravimetric analysis
Accuracy and precision Materials science 0211 other engineering and technologies Analytical chemistry 02 engineering and technology Crystal structure DIFFRACTION [SPI.MAT]Engineering Sciences [physics]/Materials 021105 building & construction General Materials Science CIMENT BLENDED CEMENT Cement AMORPHOUS SUPPLEMENTARY CEMENTITIOUS MATERIALS SODA-LIME GLASS POWDER X-RAY DIFFRACTION Rietveld refinement Building and Construction PATE DE CIMENT 021001 nanoscience & nanotechnology PONKCS Amorphous solid DIFFRACTION DES RAYONS X Standard addition CHAUX Inductively coupled plasma 0210 nano-technology RAYON X |
| Zdroj: | Cement and Concrete Research Cement and Concrete Research, Elsevier, 2020, 130, 27 p. ⟨10.1016/j.cemconres.2020.105999⟩ |
| ISSN: | 0008-8846 |
| DOI: | 10.1016/j.cemconres.2020.105999⟩ |
| Popis: | X-ray diffraction (XRD) is a prominent technique to characterise cement-based materials. The combination of the Rietveld refinement with the Partial Or No Known Crystal Structure (PONKCS) approach now enables the quantification of both crystalline phases and amorphous contribution of SCMs. This paper describes the application of Rietveld-PONKCS to determine the amount of reacted glass powder (GP) in blended cement pastes. The accuracy and precision of the method were compared to the results of independent methods such as selective acid dissolution, thermogravimetric analysis (TGA) combined to energy-dispersive spectroscopy (EDS) or inductively coupled plasma (ICP) applied to GP-lime mixtures. For blended cement, the consistency of the method was internally checked using the standard addition method. Overall, an average precision of 1.6 wt% and accuracy better than 1.5 wt% were found for Rietveld-PONKCS applied to GP containing systems. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect