Sustainable geopolymerization approach to stabilize sabkha soil

Hamid, Wagdi; Alnuaim, Ahmed

doi:10.1016/j.jmrt.2023.05.149

Cited by 6 publications

(2 citation statements)

References 48 publications

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“…2: Fly ash for soil stabilization According to ASTM, both dry and wet sieving should be used to verify the fly ash's granularity. The proportion of fly ash remaining on a 45-micron sieve after a sample is sieved through it is used to determine the fineness of the material [20][21][22][23][24]. The Lech atelier technique and the Blaine Specific Surface approach are further techniques for measuring fineness.…”

Section: Methodsmentioning

confidence: 99%

Improving Soil Properties for Construction Usage with Fly Ash and Rice Husk Ash

Saxena,

Gupta,

Rajalakshmi

et al. 2024

E3S Web of Conf.

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Changes made to any soil property with the goal of improving the soil’s engineering performance are collectively referred to as soil improvement. This might include enhancing groundwater conditions, decreasing compressibility, minimising permeability, or strengthening the structure’s structural integrity. Soil enhancement might be a short-term solution to make building easier or a long-term strategy to improve the finished structure’s performance over time. Expansive soils, especially black cotton soil, pose serious problems for the building sector because of their negative swelling and shrinking characteristics. The purpose of this study is to better understand how stabilizing substances like fly ash and rice husk ash (RHA) might help address these issues and enhance the qualities of soil suitable for building. To evaluate the efficacy of RHA and fly ash as swell reduction layers and to improve unconfined compressive strength (UCS) in highway construction, the materials will be added to natural soil in different percentages (RHA: 0%, 15%, and 30%; fly ash: 10%, 20%, and 30%). Nine different combinations were tested using UCS after the quantities were established using the Taguchi optimization approach. The results suggest that adding these waste items can greatly strengthen the soil, and that certain combinations work best for stabilizing the soil. The study highlights how soils in construction can be addressed by utilizing sustainable resources like fly ash and RHA.

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Section: Methodsmentioning

confidence: 99%

Improving Soil Properties for Construction Usage with Fly Ash and Rice Husk Ash

Saxena,

Gupta,

Rajalakshmi

et al. 2024

E3S Web of Conf.

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show abstract

“…In general, sabkha sediments have low dry densities and high void ratios. Many structures built on sabkha soils have apparent damage because of severe excessive settlements (3,4) . The demand for the infrastructure and construction of new buildings is growing as the population and industrialization are increasing rapidly in Saudia Arabia.…”

Section: Introductionmentioning

confidence: 99%

The Electrokinetic Stabilization (EKS) Green Approach Towards Improving the Geotechnical Properties of the Gulf Sabkha Soil at Rabigh, Saudi Arabia

Babar,

Hasan,

Wahab

2023

IJST

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Objectives: Sabkha soil is widely formed in the Arabian Gulf in the Kingdom of Saudia Arabia, particularly along the coastline. Over the past 25 years, numerous studies have been conducted to understand and characterize sabkha soil and increase its strength and durability. To enhance the geotechnical properties of Sabkha soil using an environmentally friendly electrokinetic stabilization method. From a geotechnical perspective, the construction process heavily depends on improving weak soil strength, durability, and treatment cost. The presence of water, high salinity, low shear strength, and low specific gravity are the soft geotechnical features that need to be enhanced before any construction on sabkha soil. Methods/Analysis: The electrokinetic stabilization method was applied to extract salty particles and enhance the geotechnical properties of sabkha soil. The voltage gradient of 40 V was applied for 1, 3, and 7 days using stainless steel electrodes. Findings: The result showed an outstanding improvement of sabkha soil geotechnical properties where the shear strength was increased from 116 to 165, 230, and 360 kPa for Rabigh I (RI), 122 to 155, 254, and 371 kPa for Rabigh II (RII), and for Rabigh III (RIII), the shear strength was improved up to 405 kPa. The moisture content decreased from 34.5 to 16.8% for RI, 35.2 to 15.9% for RII, and 37.5 to 14.7% for RIII. Novelty and applications: Experimental results demonstrated that all parameters were improved massively by increasing the voltage gradient and operational time. This technique is highly recommended to strengthen weak soil and improve geotechnical properties.

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Experimental Study on Improving the Bearing Capacity of Sabkha Soil Using Geopolymer

Hamid,

Alnuaim

2024

Int. J. of Geosynth. and Ground Eng.

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Sustainable geopolymerization approach to stabilize sabkha soil

Cited by 6 publications

References 48 publications

Improving Soil Properties for Construction Usage with Fly Ash and Rice Husk Ash

Improving Soil Properties for Construction Usage with Fly Ash and Rice Husk Ash

The Electrokinetic Stabilization (EKS) Green Approach Towards Improving the Geotechnical Properties of the Gulf Sabkha Soil at Rabigh, Saudi Arabia

Experimental Study on Improving the Bearing Capacity of Sabkha Soil Using Geopolymer

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