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In this study, 26 soil samples were collected from the Al-Karak district in southern Jordan at two different depths. The samples were then dried, sieved, and mixed with sodium hydroxide (SH), sodium silicate (SS), and concrete (PC) in various ratios to investigate their shear strength properties. All samples were geotechnically characterized for their physical and chemical properties based on the ASTM standards. The results showed that mixing karak soil (КSS) mixed with 30% cement had a compressive strength of 43.2 kg/cm2, while bricks made with the same mixture exhibited a compressive strength of 6.8 kg/cm2. When KSS was mixed with 20% sodium hydroxide, the bricks achieved a compressive strength of 9.46 kg/cm2. Mixing KSS with 10% sodium silicate resulted in a compressive strength of 46.8 kg/cm2. Adding cement, SH, and SS materials to silty clay soil in appropriate quantities and with proper compaction enhanced the shear strength capacity and properties of the produced bricks while also reducing the soil’s swelling and shrinkage potential.

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Sodium Silicate and Sodium Hydroxide as Activators in Producing Green Building Bricks

  • 章节

  • 发表日期：

    2025年

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  • Bassam Z. Mahasneh,
  • Mohanad H. Masad,
  • Tareq Khraisat,
  • Reyad A. Al Dwairi

摘要

In this study, 26 soil samples were collected from the Al-Karak district in southern Jordan at two different depths. The samples were then dried, sieved, and mixed with sodium hydroxide (SH), sodium silicate (SS), and concrete (PC) in various ratios to investigate their shear strength properties. All samples were geotechnically characterized for their physical and chemical properties based on the ASTM standards. The results showed that mixing karak soil (КSS) mixed with 30% cement had a compressive strength of 43.2 kg/cm2, while bricks made with the same mixture exhibited a compressive strength of 6.8 kg/cm2. When KSS was mixed with 20% sodium hydroxide, the bricks achieved a compressive strength of 9.46 kg/cm2. Mixing KSS with 10% sodium silicate resulted in a compressive strength of 46.8 kg/cm2. Adding cement, SH, and SS materials to silty clay soil in appropriate quantities and with proper compaction enhanced the shear strength capacity and properties of the produced bricks while also reducing the soil’s swelling and shrinkage potential.