Phosphoric acid activation of volcanic ashes: Influence of the molar ratio R = (MgO + CaO) / P2O5 on reactivity of volcanic ash and strength of obtained cementitious material

B.I. Djon Li Ndjock , R.A. Robayo-Salazar , R. Mejía de Gutiérrez , J. Baenla , J.A. Mbey , Martin Cyr (1) , A. Elimbi

1 LMDC - Laboratoire Matériaux et Durabilité des constructions

Domaines: Sciences de l'ingénieur [physics]; Génie civil

B.I. Djon Li Ndjock, R.A. Robayo-Salazar, R. Mejía de Gutiérrez, J. Baenla, J.A. Mbey, et al.. Phosphoric acid activation of volcanic ashes: Influence of the molar ratio R = (MgO + CaO) / P2O5 on reactivity of volcanic ash and strength of obtained cementitious material. Journal of Building Engineering, 2021, 33, pp.101879. ⟨10.1016/j.jobe.2020.101879⟩. ⟨hal-03123627⟩