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<p>There has been the emergence of new building materials like geopolymer, which offers a tremendous possibility to reduce environmental footprints and issues associated with conventional cement manufacturing. In this study, the creation of geopolymer by activating waste glass powder with alkaline solution was presented and sandcrete blocks were produced by replacing cement with the geopolymer and superplasticizer (SP). The strength and durability of the blocks developed at cement replacement rates of 0%, 5%, 10%, 15%, and 20% were evaluated. The results showed that after 28 days of curing, the mixes’ densities ranged from 1808 to 2102&#xa0;kg/m<sup>3</sup>, with 20% replacement having the maximum density. Also, it was discovered that the SP addition increased the blocks’ compressive strength, with the mix containing 15% cement replacement and 15% SP inclusion demonstrating a maximum compressive strength of 3.4&#xa0;N/mm<sup>2</sup> after 28 days. In conclusion, geopolymer and SP enhances the qualities of snadcrete blocks.</p> Graphical Abstract <p></p>

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Strength and Durability Assessment of Glass-Alkaline Activated Geopolymer Sandcrete Blocks

  • 期刊论文

  • 发表日期：

    2025年6月16日

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  • Olumoyewa D. Atoyebi,
  • Kingsley O. Iwuozor,
  • Ebuka Chizitere Emenike,
  • Samson O. Odeyemi,
  • Oluwatomisin T. Ademola,
  • Adewale George Adeniyi

摘要

There has been the emergence of new building materials like geopolymer, which offers a tremendous possibility to reduce environmental footprints and issues associated with conventional cement manufacturing. In this study, the creation of geopolymer by activating waste glass powder with alkaline solution was presented and sandcrete blocks were produced by replacing cement with the geopolymer and superplasticizer (SP). The strength and durability of the blocks developed at cement replacement rates of 0%, 5%, 10%, 15%, and 20% were evaluated. The results showed that after 28 days of curing, the mixes’ densities ranged from 1808 to 2102 kg/m3, with 20% replacement having the maximum density. Also, it was discovered that the SP addition increased the blocks’ compressive strength, with the mix containing 15% cement replacement and 15% SP inclusion demonstrating a maximum compressive strength of 3.4 N/mm2 after 28 days. In conclusion, geopolymer and SP enhances the qualities of snadcrete blocks.

Graphical Abstract