All Stories

  1. Reactivity of olivine-derived amorphous silica and its potential for use as a supplementary cementitious material

    Article • Journal of Building Engineering, October 2025, Elsevier

    Professor Christopher Robert Cheeseman, Dr Jean Noel Yankwa Djobo

  2. Effective Stabilization of Cadmium and Copper in Iron-Rich Laterite-Based Geopolymers and Influence on Physical Properties

    Article • Materials, December 2023, MDPI AG

    Dr Jean Noel Yankwa Djobo

  3. Early age properties and water resistance of calcium hydroxide modified volcanic ash‐based phosphate geopolymer binders

    Article • International Journal of Ceramic Engineering & Science, August 2023, Wiley

    Dr Jean Noel Yankwa Djobo

  4. The role of chemistry and fineness of metakaolin on the fresh properties and heat resistance of blended fly ash-based geopolymer

    Article • SN Applied Sciences, April 2023, Springer Science + Business Media

    Dr Jean Noel Yankwa Djobo

  5. Lateritic soils based geopolymer materials: A review

    Article • Construction and Building Materials, August 2022, Elsevier

    Dr Jean Noel Yankwa Djobo

  6. The reaction of calcium during the formation of metakaolin phosphate geopolymer binder

    Article • Cement and Concrete Research, August 2022, Elsevier

    Dr Jean Noel Yankwa Djobo

  7. Feasibilty of valorizing quarry wastes in the synthesis of geopolymer binders: engineering performances and microstructure

    Article • Environmental Science and Pollution Research, March 2022, Springer Science + Business Media

    Dr Jean Noel Yankwa Djobo

  8. Reaction kinetics and microstructural characteristics of iron-rich-laterite-based phosphate binder

    Article • Construction and Building Materials, February 2022, Elsevier

    Prof. Gilberto Artioli, Dr Jean Noel Yankwa Djobo

  9. Understanding the binder chemistry, microstructure, and physical properties of volcanic ash phosphate geopolymer binder

    Article • Journal of the American Ceramic Society, January 2022, Wiley

    Dr Jean Noel Yankwa Djobo

  10. Influence of Thermal Activation and Silica Modulus on the Properties of Clayey-Lateritic Based Geopolymer Binders Cured at Room Temperature

    Article • Silicon, January 2022, Springer Science + Business Media

    Dr Jean Noel Yankwa Djobo

  11. The role of curing temperature and reactive aluminum species on characteristics of phosphate geopolymer

    Article • RSC Advances, January 2022, Royal Society of Chemistry

    Dr Jean Noel Yankwa Djobo

  12. Performance of laterite-based geopolymers reinforced with sugarcane bagasse fibers

    Article • Case Studies in Construction Materials, December 2021, Elsevier

    Dr Jean Noel Yankwa Djobo

  13. Influence of Thermal Activation and Silica Modulus on the Properties of Clayey-Lateritic Based Geopolymer Binders Cured at Room Temperature

    Article • August 2021, Springer Science + Business Media

    Dr Jean Noel Yankwa Djobo

  14. Particles size and distribution on the improvement of the mechanical performance of high strength solid solution based inorganic polymer composites: A microstructural approach

    Article • Materials Chemistry and Physics, July 2021, Elsevier

    Dr Jean Noel Yankwa Djobo

  15. Mechanical Performance, Phase Evolution and Microstructure of Natural Feldspathic Solid Solutions Consolidated Via Alkali Activation: Effect of NaOH Concentration

    Article • Silicon, June 2021, Springer Science + Business Media

    Dr Jean Noel Yankwa Djobo

  16. Control of the setting reaction and strength development of slag-blended volcanic ash-based phosphate geopolymer with the addition of boric acid

    Article • Journal of the Australian Ceramic Society, May 2021, Springer Science + Business Media

    Dr Jean Noel Yankwa Djobo

  17. Mechanical strength and microstructure of metakaolin/volcanic ash-based geopolymer composites reinforced with reactive silica from rice husk ash (RHA)

    Article • Materialia, May 2021, Elsevier

    Dr Jean Noel Yankwa Djobo

  18. Resistance of Alkali-Activated Blended Volcanic Ash-MSWI-FA Mortar in Sulphuric Acid and Artificial Seawater

    Article • Silicon, March 2021, Springer Science + Business Media

    Dr Jean Noel Yankwa Djobo

  19. Preparation of acid aluminum phosphate solutions for metakaolin phosphate geopolymer binder

    Article • RSC Advances, January 2021, Royal Society of Chemistry

    Dr Jean Noel Yankwa Djobo

  20. Investigation of Groundnut Shell Powder on Development of Lightweight Metakaolin Based Geopolymer Composite: Mechanical and Microstructural Properties

    Article • Silicon, November 2020, Springer Science + Business Media

    Dr Jean Noel Yankwa Djobo

  21. Lateritic soil based-compressed earth bricks stabilized with phosphate binder

    Article • Journal of Building Engineering, September 2020, Elsevier

    Dr Jean Noel Yankwa Djobo

  22. Setting and hardening behavior of volcanic ash phosphate cement

    Article • Journal of Building Engineering, September 2020, Elsevier

    Dr Jean Noel Yankwa Djobo

  23. Phase and dimensional stability of volcanic ash-based phosphate inorganic polymers at elevated temperatures

    Article • SN Applied Sciences, April 2020, Springer Science + Business Media

    Dr Jean Noel Yankwa Djobo

  24. Physical and mechanical properties of unheated and heated kaolin based-geopolymers with partial replacement of aluminium hydroxide

    Article • Materials Chemistry and Physics, January 2020, Elsevier

    Dr Jean Noel Yankwa Djobo

  25. Iron-rich laterite-bagasse fibers based geopolymer composite: Mechanical, durability and insulating properties

    Article • Applied Clay Science, December 2019, Elsevier

    Dr Jean Noel Yankwa Djobo

  26. Effect of silicate modulus on the setting, mechanical strength and microstructure of iron-rich aluminosilicate (laterite) based-geopolymer cured at room temperature

    Article • Ceramics International, December 2018, Elsevier

    Dr Jean Noel Yankwa Djobo

  27. Natural pozzolan based geopolymers: A review on mechanical, microstructural and durability characteristics

    Article • Construction and Building Materials, November 2018, Elsevier

    Dr Jean Noel Yankwa Djobo

  28. The effects of synthesized calcium phosphate compounds on the mechanical and microstructural properties of metakaolin-based geopolymer cements

    Article • Construction and Building Materials, February 2018, Elsevier

    Dr Jean Noel Yankwa Djobo

  29. Size fractionation of brown fly ash: utilisation of grey fraction as a pozzolanic material in blended cement

    Article • European Journal of Environmental and Civil engineering, January 2018, Taylor & Francis

    Dr Jean Noel Yankwa Djobo

  30. Microstructural characterization and mechanical properties of bottom ash mortar

    Article • Journal of Cleaner Production, January 2018, Elsevier

    Sajedeh Sadat Ghazizadeh Hashemi, Dr Jean Noel Yankwa Djobo

  31. Moisture Control Capacity of Geopolymer Composites: Correlation of the Bulk Composition–Pore Network with the Absorption–Desorption Behavior

    Article • Transport in Porous Media, December 2017, Springer Science + Business Media

    Dr Jean Noel Yankwa Djobo

  32. The influence of gibbsite in kaolin and the formation of berlinite on the properties of metakaolin-phosphate-based geopolymer cements

    Article • Materials Chemistry and Physics, September 2017, Elsevier

    Dr Jean Noel Yankwa Djobo

  33. Utilization of sodium waterglass from sugar cane bagasse ash as a new alternative hardener for producing metakaolin-based geopolymer cement

    Article • Geochemistry, May 2017, Elsevier

    Dr Jean Noel Yankwa Djobo

  34. Volcanic ash-based geopolymer cements/concretes: the current state of the art and perspectives

    Article • Environmental Science and Pollution Research, December 2016, Springer Science + Business Media

    Dr Jean Noel Yankwa Djobo

  35. Geopolymerization behavior of fine iron-rich fraction of brown fly ash

    Article • Journal of Building Engineering, December 2016, Elsevier

    Dr Jean Noel Yankwa Djobo

  36. Mechanical properties and durability of volcanic ash based geopolymer mortars

    Article • Construction and Building Materials, October 2016, Elsevier

    Dr Jean Noel Yankwa Djobo

  37. Reactivity of volcanic ash in alkaline medium, microstructural and strength characteristics of resulting geopolymers under different synthesis conditions

    Article • Journal of Materials Science, July 2016, Springer Science + Business Media

    Dr Jean Noel Yankwa Djobo

  38. Gel Composition and Strength Properties of Alkali-Activated Oyster Shell-Volcanic Ash: Effect of Synthesis Conditions

    Article • Journal of the American Ceramic Society, June 2016, Wiley

    Dr Jean Noel Yankwa Djobo, Dr Navid Ranjbar

  39. Partial replacement of volcanic ash by bauxite and calcined oyster shell in the synthesis of volcanic ash-based geopolymers

    Article • Construction and Building Materials, June 2016, Elsevier

    Dr Jean Noel Yankwa Djobo

  40. Potential of using granite waste as raw material for geopolymer synthesis

    Article • Ceramics International, February 2016, Elsevier

    Dr Jean Noel Yankwa Djobo

  41. Mechanical activation of volcanic ash for geopolymer synthesis: effect on reaction kinetics, gel characteristics, physical and mechanical properties

    Article • RSC Advances, January 2016, Royal Society of Chemistry

    Dr Jean Noel Yankwa Djobo

  42. A comparative study of two methods to produce geopolymer composites from volcanic scoria and the role of structural water contained in the volcanic scoria on its reactivity

    Article • Ceramics International, December 2015, Elsevier

    Dr Jean Noel Yankwa Djobo

  43. Influence of gibbsite and quartz in kaolin on the properties of metakaolin-based geopolymer cements

    Article • Applied Clay Science, April 2015, Elsevier

    Dr Jean Noel Yankwa Djobo

  44. Synthesis of geopolymer composites from a mixture of volcanic scoria and metakaolin

    Article • Journal of Asian Ceramic Societies, December 2014, Taylor & Francis

    Dr Jean Noel Yankwa Djobo