1 Jun 2023

Kaolinite structural modifications induced by mechanical activation

by | posted in: Alex Maldonado, Authors, Construction, Jofre Mañosa, Josep María Chimenos, Publications | 0

Authors: Jofre Mañosa; Jaume Calvo-de la Rosa; ; Alessio Silvello; Alex Maldonado-Alameda; Josep Maria Chimenos

Journal: Applied Clay Science

Research Line: Construction

Publication Date: June 01, 2023

View Article
  • Kaolinite's Structural Evolution: Unveiling Changes through Mechanical Activation
    Kaolinite’s Structural Evolution: Unveiling Changes through Mechanical Activation

Publication Highlights

  1. Mechanical activation strongly modifies kaolin’s structure.
  2. X-ray diffraction reference intensity ratio is useful to monitor the activation effect.
  3. Amorphization is assessed with transmission electron microscopy selective area electron diffraction.
  4. The hydroxyls are separated from the structure and the chemical bonds are weakened.
  5. The presence of water formed through hydroxyls reaction is confirmed.

Funding Organizations

Spanish government: PID2021-125810OB-C21 “DESARROLLO DE MATERIALES CEMENTICIOS ECOEFICIENTES, CON BAJO IMPACTO Y ALTA DURABILIDAD”, TED2021-129718B-I00 “Hormigón arquitectónico no estructural para uso urbano formulado con cementos activados alcalinamente utilizado como precursor escorias de incineración de residuos municipales”.

Generalitat de Catalunya: DIOPMA (2017 SGR 188).