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<p>Soils classified as expansive experience an increase in volume upon contact with water. There have been increased searches for materials to improve and strengthen expansive soils and soils with multiple problems, provided that materials are available and without harm. Attention has turned to the use of polymeric materials, as they are available and environmentally friendly materials that are not harmful (such as cement, which leads to the emission of carbon dioxide). The major purpose of this research is to investigate the effectiveness of various percentages of swelling soil stabilized with Poly Acrylamide Geopolymer. This effectiveness by reducing the free swell and swelling potential for expansive soil. The percentages of Poly Acrylamide Geopolymer are 0, 0.1, 0.3, 0.5, 1, 1.5 and, 3% by weight. The results showed that the optimum percent of Poly Acrylamide Geopolymer is 0.3%. The free swell and swelling pressure decreased by about 75% and 95%, respectively, when 0.3% of geopolymer is added to the expansive soil.</p>

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Expansive soil stabilized by using poly acrylamide geopolymer

  • 期刊论文

  • 发表日期：

    2026年1月20日

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  • Ahmed S. A. Al-Gharbawi,
  • Mohammed Faeq Aswad,
  • Mohammed Y. Fattah,
  • Yaqeen T. AliKhan,
  • Sajad T. Khalil,
  • Zainab S. Saber

摘要

Soils classified as expansive experience an increase in volume upon contact with water. There have been increased searches for materials to improve and strengthen expansive soils and soils with multiple problems, provided that materials are available and without harm. Attention has turned to the use of polymeric materials, as they are available and environmentally friendly materials that are not harmful (such as cement, which leads to the emission of carbon dioxide). The major purpose of this research is to investigate the effectiveness of various percentages of swelling soil stabilized with Poly Acrylamide Geopolymer. This effectiveness by reducing the free swell and swelling potential for expansive soil. The percentages of Poly Acrylamide Geopolymer are 0, 0.1, 0.3, 0.5, 1, 1.5 and, 3% by weight. The results showed that the optimum percent of Poly Acrylamide Geopolymer is 0.3%. The free swell and swelling pressure decreased by about 75% and 95%, respectively, when 0.3% of geopolymer is added to the expansive soil.