A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Application of Ladle Furnace Slag on Strength Development of Expansive Clay Under Variable Moisture Conditions
This research investigates the application of Ladle Furnace Slag in stabilizing expansive soil, particularly in pavement construction. Laboratory-prepared expansive soils have been added with different proportions of Ladle Furnace Slag-based geopolymer. The study also considered two moisture content levels: the optimum moisture content (OMC) and a moisture level 4% lower than OMC to examine the effect of water on strength development. A series of experiments have been conducted to estimate the Unconfined Compressive Strength (UCS) and California Bearing Ratio (CBR) of treated soils at two curing ages, 14 days and 28 days, followed by an exploration of the soaking effect after 24 h of soaking. The results demonstrated a positive correlation between geopolymer content and increased unconfined compressive strength and CBR values. Notably, samples with moisture content below 4% of OMC exhibited approximately 60% higher UCS than their OMC counterparts. The swelling potential was substantially reduced by 93% for both types of expansive soil. In addition, the Mechanistic-Empirical approach of pavement analysis has been conducted to evaluate the structural benefits of stabilization. The pavement analysis showed that soil with 15% geopolymer content could substitute the conventional subbase layer requirement, leading to an economical design.
Application of Ladle Furnace Slag on Strength Development of Expansive Clay Under Variable Moisture Conditions
This research investigates the application of Ladle Furnace Slag in stabilizing expansive soil, particularly in pavement construction. Laboratory-prepared expansive soils have been added with different proportions of Ladle Furnace Slag-based geopolymer. The study also considered two moisture content levels: the optimum moisture content (OMC) and a moisture level 4% lower than OMC to examine the effect of water on strength development. A series of experiments have been conducted to estimate the Unconfined Compressive Strength (UCS) and California Bearing Ratio (CBR) of treated soils at two curing ages, 14 days and 28 days, followed by an exploration of the soaking effect after 24 h of soaking. The results demonstrated a positive correlation between geopolymer content and increased unconfined compressive strength and CBR values. Notably, samples with moisture content below 4% of OMC exhibited approximately 60% higher UCS than their OMC counterparts. The swelling potential was substantially reduced by 93% for both types of expansive soil. In addition, the Mechanistic-Empirical approach of pavement analysis has been conducted to evaluate the structural benefits of stabilization. The pavement analysis showed that soil with 15% geopolymer content could substitute the conventional subbase layer requirement, leading to an economical design.
Application of Ladle Furnace Slag on Strength Development of Expansive Clay Under Variable Moisture Conditions
Transp. Infrastruct. Geotech.
Islam, Mohammed Russedul (author) / Tanvir, Abu Sadat Mohammad (author) / Islam, Naveel (author) / Alam, Md. Kausar (author) / Rahman, Md. Aftabur (author) / Dey, Rajib (author)
2025-01-01
Article (Journal)
Electronic Resource
English
Ladle Furnace Slag in the Construction of Embankments: Expansive Behavior
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