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

2021 ◽  
Vol 33 ◽  
pp. 101879
Author(s):  
B.I. Djon Li Ndjock ◽  
R.A. Robayo-Salazar ◽  
R. Mejía de Gutiérrez ◽  
J. Baenla ◽  
J.A. Mbey ◽  
...  
Keyword(s):  
Phosphoric Acid ◽  
Volcanic Ash ◽  
Cementitious Material ◽  
Molar Ratio ◽  
Acid Activation ◽  
Volcanic Ashes ◽  
Phosphoric Acid Activation

scholarly journals Amorphous phase of volcanic ash and microstructure of cement product obtained from phosphoric acid activation

2020 ◽  
Vol 2 (4) ◽  
Author(s):  
Benjamin Igor Djon Li Ndjock ◽  
Jean Baenla ◽  
Jean Baptiste Bike Mbah ◽  
Antoine Elimbi ◽  
Martin Cyr
Keyword(s):  
Phosphoric Acid ◽  
Amorphous Phase ◽  
Volcanic Ash ◽  
Acid Activation ◽  
Phosphoric Acid Activation

Effects of Al and Fe powders on the formation of foamed cement obtained by phosphoric acid activation of volcanic ash

2021 ◽  
pp. 131147
Author(s):  
B.I. Djon Li Ndjock ◽  
J. Baenla ◽  
E. Yanne ◽  
J.B. Bike Mbah ◽  
Souaïbou ◽  
...  
Keyword(s):  
Phosphoric Acid ◽  
Volcanic Ash ◽  
Acid Activation ◽  
Phosphoric Acid Activation

Effects of chemical composition of amorphous phase on the reactivity of phosphoric acid activation of volcanic ashes

2022 ◽  
Vol 575 ◽  
pp. 121213
Author(s):  
Thierry Ebenizer Pougnong ◽  
Placide Desiré Belibi Belibi ◽  
Jean Baenla ◽  
Alomayri Thamer ◽  
Emmanuel Tiffo ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Phosphoric Acid ◽  
Amorphous Phase ◽  
Acid Activation ◽  
Volcanic Ashes ◽  
Phosphoric Acid Activation

Preparation of bamboo-based mesoporous activated carbon by phosphoric acid activation

Carbon ◽  
2014 ◽  
Vol 72 ◽  
pp. 429 ◽  
Author(s):  
Motohide Hata ◽  
Yoshimasa Amano ◽  
Masami Aikawa ◽  
Motoi Machida ◽  
Fumio Imazeki
Keyword(s):  
Activated Carbon ◽  
Phosphoric Acid ◽  
Acid Activation ◽  
Mesoporous Activated Carbon ◽  
Phosphoric Acid Activation

Preparation and structure analysis of expanded graphite-based composites made by phosphoric acid activation

2009 ◽  
Vol 17 (4) ◽  
pp. 425-428 ◽  
Author(s):  
Chengbao Liu ◽  
Zhigang Chen ◽  
Xiangle Cheng ◽  
Zhenbang Wang ◽  
Xiaotao Duan
Keyword(s):  
Phosphoric Acid ◽  
Structure Analysis ◽  
Expanded Graphite ◽  
Acid Activation ◽  
Phosphoric Acid Activation
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