Improved Reactivity of Volcanic Ash using Municipal Solid Incinerator Fly Ash for Alkali-Activated Cement Synthesis

  • Sylvain TomeEmail author
  • Marie-Annie Etoh
  • Jacques Etame
  • Sanjay Kumar
Original Paper


In this work, municipal solid waste incinerator fly ash (MSWI-FA) was used as precursor to alter the reactivity of low reactive volcanic ash (VA) for alkali-activated cement synthesised. The effects of various proportions of MSWI-FA (0, 5, 10, 15 and 20%) on the final properties of the inorganic polymer are reported. The increase in MSWI-FA content increases the heat of reaction in MSWI-FA as the result of the reaction between the amorphous alumina-silica and the Ca-rich precursor. Isothermal conduction calorimetry, FTIR, XRD SEM/EDS, and physico-mechanical analyses were used to follow up the different formulations. New crystalline phases, namely Margarite (CaAl2 (Al2Si2)O10(OH)2, PDF#04-013-3004), Mordernite-(Ca) ((Ca, Na2, K2)(Al2 Si10 O24)·7H2O, PDF#00-011-0155) and Thernadite (Na2SO4, PDF#01-074-2036) confirm the good reactivity. The SEM/EDS exhibited the coexistence of C–S(-N-A)–H and N-A-S-H gels in binary system alkali-activated. The compressive strength and bulk density ranged from 9.38 to 21.07 MPa and from 1.56 to 1.77 g/cm3, respectively. These results indicated the possibility to use VA and MSWI-FA to synthesize room temperature alkali-activated matrices applicable in the manufacture of structural and functional materials. MSWI-FA appears energy-efficient and sustainable solution for the improvement of the volcanic ash based alkaline activated materials.


Improved Reactivity Volcanic ash MSWI-FA Alkaline activated material 



The work presented in the paper has been carried out under CSIR-TWAS Sandwich Postgraduate Fellowship Award FR No 3240293597 to the first author and CSIR-TWAS is greatly acknowledged. The authors are grateful to Director, CSIR-National Metallurgical Laboratory, Jamshedpur, India for extending all the facility to carry out this research. The authors are also grateful Dr Kamseu Elie, Researcher at Local Materials Promotion Authority/MIPROMALO, Cameroon to revise the manuscript.


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  • Sylvain Tome
    • 1
    • 3
    Email author
  • Marie-Annie Etoh
    • 1
  • Jacques Etame
    • 2
  • Sanjay Kumar
    • 3
  1. 1.Department of Chemistry, Faculty of SciencesUniversity of DoualaDoualaCameroon
  2. 2.Department of Geosciences and Environment, Faculty of SciencesUniversity of DoualaDoualaCameroon
  3. 3.CSIR-National Metallurgical LaboratoryJamshedpurIndia

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