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

Research output: Contribution to journalArticleResearchpeer review

Authors

  • Achile Nana
  • Elie Kamseu
  • Ange Therese Akono
  • Jean Ngouné
  • Jean Noel Yankwa Djobo
  • Hervé Kouamo Tchakouté
  • Maria Chiara Bognozzi
  • Cristina Leonelli

External Research Organisations

  • University of Dschang
  • Ministry of Scientific Research and Innovation-Cameroon
  • University of Modena and Reggio Emilia
  • Northwestern University
  • University of Yaounde I
  • University of Bologna
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Details

Original languageEnglish
Article number124602
JournalMaterials chemistry and physics
Volume267
Early online date13 Apr 2021
Publication statusPublished - 15 Jul 2021
Externally publishedYes

Abstract

This research reports on the influence of particle size and distribution on the physical, mechanical and microstructural features of solid solutions (feldspathic materials) based inorganic polymer composites (IPCs). Both granite and pegmatite were ground to different degree of finess making four different granulometry with particles of 63, 80, 125 and 200 μm. The respective mixes receive 15 wt% of metakaolin and were activated with a well designed alkaline solution. Matrices obtained showed high compressive and flexural strengths in the range 101.2–131.3 MPa, and 29–35.5 MPa, respectively. It was observed that the optimum mechanical performance of these matrices can be achieved through a mix-design of different grades of granulometry. This was suggested by mechanism combining reactivity and particles packing. In fact, although it can be expected that the finess of the combination of the particles size under 63 μm might present the better reactivity, it is showing that the combination of fine, medium and coarse particles is efficient in achieving denser and tougher microstructure. Lower cumulative pore volume (17 mL g−1) of the composites based on pegmatite, value not far from that of natural stones, resulted in a higher impact resistance of 3.03 J. It was concluded that designing the feldspathic rock-based composites with high strengths appear as sustainable, low energy consumption and environmentally-friendly materials for the structural construction.

Keywords

    Impact strength, Low porosity, Microstructure, Particles packing, Particles size distribution, Solid solution

ASJC Scopus subject areas

Sustainable Development Goals

Cite this

Particles size and distribution on the improvement of the mechanical performance of high strength solid solution based inorganic polymer composites: A microstructural approach. / Nana, Achile; Kamseu, Elie; Akono, Ange Therese et al.
In: Materials chemistry and physics, Vol. 267, 124602, 15.07.2021.

Research output: Contribution to journalArticleResearchpeer review

Nana A, Kamseu E, Akono AT, Ngouné J, Yankwa Djobo JN, Tchakouté HK et al. Particles size and distribution on the improvement of the mechanical performance of high strength solid solution based inorganic polymer composites: A microstructural approach. Materials chemistry and physics. 2021 Jul 15;267:124602. Epub 2021 Apr 13. doi: 10.1016/j.matchemphys.2021.124602
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abstract = "This research reports on the influence of particle size and distribution on the physical, mechanical and microstructural features of solid solutions (feldspathic materials) based inorganic polymer composites (IPCs). Both granite and pegmatite were ground to different degree of finess making four different granulometry with particles of 63, 80, 125 and 200 μm. The respective mixes receive 15 wt% of metakaolin and were activated with a well designed alkaline solution. Matrices obtained showed high compressive and flexural strengths in the range 101.2–131.3 MPa, and 29–35.5 MPa, respectively. It was observed that the optimum mechanical performance of these matrices can be achieved through a mix-design of different grades of granulometry. This was suggested by mechanism combining reactivity and particles packing. In fact, although it can be expected that the finess of the combination of the particles size under 63 μm might present the better reactivity, it is showing that the combination of fine, medium and coarse particles is efficient in achieving denser and tougher microstructure. Lower cumulative pore volume (17 mL g−1) of the composites based on pegmatite, value not far from that of natural stones, resulted in a higher impact resistance of 3.03 J. It was concluded that designing the feldspathic rock-based composites with high strengths appear as sustainable, low energy consumption and environmentally-friendly materials for the structural construction.",
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AU - Nana, Achile

AU - Kamseu, Elie

AU - Akono, Ange Therese

AU - Ngouné, Jean

AU - Yankwa Djobo, Jean Noel

AU - Tchakouté, Hervé Kouamo

AU - Bognozzi, Maria Chiara

AU - Leonelli, Cristina

N1 - Publisher Copyright: © 2021 Elsevier B.V.

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