Analysis of cubic and orthorhombic C3A hydration in presence of …
2009年4月1日 · Field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD) have been used to study the microstructural changes and phase development that take …
Investigating the hydration of C3A in the combined presence of ...
2023年5月16日 · Being one of the important constituents of Portland and calcium sulfoaluminate cements, tricalcium aluminate (C 3 A) plays a crucial role in the hydration, workability, setting …
Analysis of cubic and orthorhombic C3A hydration in
2009年4月1日 · Field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD) have been used to study the microstructural changes and phase development that take...
Hydration of C3A–gypsum systems - ScienceDirect
2012年7月1日 · The in-situ XRD results show that the reaction of C 3 A and ettringite to form monosulfoaluminate (and/or hydroxy-AFm) after gypsum depletion occurs rapidly. The …
XRD pattern of C3S + C3A + CaSO4x2H2O mixture after 3 hours …
The XRD pattern of sample without gypsum ( fig. 6) indicates on the retardation of hydration in the first 24 hours, however, in the C 3 S + C 3 A + CaSO 4 x2H 2 O + MC70 system ( fig. 10),...
XRD patterns of three pastes (C1: C3A; C2: C3AH6; E
In this study the AFm phases have been generated through the hydration of tricalcium aluminate (C 3 A) in the presence of sulfate (anhydrite) and carbonate ions (limestone) in various...
Insight into the role of early C3A hydration in structural build-up …
2024年1月1日 · The XRD patterns of the samples after hydration stoppage were obtained by a Bruker D8 ADVANCE diffractometer with a 2θ range of 5°-70° with a step width of 0.02° and …
Analysis of cubic and orthorhombic C3A hydration in presence
Field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD) have been used to study the microstructural changes and phase development that take place during the …
Molecular insight into the initial hydration of tricalcium aluminate
2024年4月4日 · Understanding the initial hydration progress of tricalcium aluminate (C 3 A) at molecular scale is thus crucial for tackling this challenge as it exhibits a proclivity for early …
(PDF) ANALYSIS OF C 3 A HYDRATION BY XRD, TG AND 27 Al …
2013年1月1日 · This paper describes quantification of crystalline and amorphous hydrates in C3A-Gypsum-Ca（OH）2 system by combining the XRD・Rietveld and ²⁷Al MAS-NMR analysis.