The stability of sabkha soil and improvement of its qualities using cement and C.K.D (Cement Kiln Dust) were investigated in this research, and the findings were compared to determine whether ...

This study investigates the effect on the mechanical properties of cement-stabilised silty soft soil (CSS) using nano-gypsum (NG). Unconfined compression strength (UCS) test trials were conducted ...

Agricultural Fertilizer Use. Beyond its soil conditioning properties, gypsum is also used in agricultural practices as a fertilizer.Gypsum is a rich source of calcium and sulfur, both of which are vital nutrients for plant growth.Calcium is essential for cell wall development, root growth, and overall plant structure, while sulfur plays a significant role …

This was performed by adding chemical additives (lime, cement kiln dust (CKD), fiberglass, Addicrete 11, and gypsum) at different ratios of 2%, 4%, and 6% of the total weight of the samples of ...

Treatment of natural soil with stabilizer led to a increase in MDD values of 1.58Mg/m3 at 4% RHA and cement for BSL, 1.66Mg/m3 at 2% RHA and cement for WAS, and 1.62Mg/m3 at 2% RHA and cement for ...

The collapse of the gypsum soil decreased by 55.91%, 83.3%, and 92% for soil treated by cement, while it decreased by 47.1%, 76.82%, and 90% for soil treated with lime when the soil treated by 4%, 8% and 12% of additive, respectively. The direct shear tests showed a significant increase in the cohesion of gypsum soil after adding cement.

Gypsum for Soil: A Gardener's Best Friend. Gypsum, or calcium sulfate, is a natural mineral that has been used in agriculture for centuries. Unlike lime, which alters soil pH, gypsum is one of the …

After being stabilized with various mixtures of cement, gypsum, and limestone, soil stabilization using cement obtained the maximum unconfined compressive strength value is 3.681 kg/cm2 in the ...

In addition to its role in soil improvement, gypsum contributes to the sustainable management of acidic soils by mitigating aluminum toxicity. In acidic soils, aluminum toxicity can hinder root development and impede plant growth. The application of gypsum interacts with aluminum, reducing its toxicity and creating a more favorable …

Study on Mechanical and Microscopic Properties of Nickel–Copper-Contaminated Soil Solidified by Cement, Fly Ash and Desulfurization Gypsum Under Carbonization Condition Qiang Wang, Xiaoliang Guo, […], Man Li [email protected], Jingdong Yang, Jinyang Cui, and Wenjun Zhou +3 -3 View all authors and affiliations

The sabkha soil used in this study is a sandy sabkha obtained from the coastal plains at Al-Auzayba, Sultanate of Oman. Cement was added in percentages of 2.5, 5, 7.5 and 10%, by dry weight of soil.

Gypsum Prevents Waterlogging of Soil. Gypsum improves the ability of soil to drain and not become waterlogged due to a combination of high sodium, swelling clay, and excess water (Aldrich and Schoonover 1951). Improvements of infiltration rate and hydraulic conductivity with use of gypsum add to the ability of soils to have adequate drainage.

However, for oven dried gypsum (DH) stabilized peat soil (ρ dmax = 0.54), as the gypsum content increases, the ω op decreases, an opposite mechanical behavior is observed (Rahman et al., 2015 ...

microscopy techniques. The pores of the stabilized soil were filled by new cementitious products, confirming that a pozzolanic reaction occurred between the organic soil and gypsum during the stabilization process and hence strength improvement. Keywords: Unconfined compressive strength, organic soil, gypsum; curing time, stabilization

The strength of the lime-treated soil that was subjected to Na 2 SO 4 contamination reduced with the increase in submergence ≤28 days; however, a marginal achievement in strength was witnessed with gypsum contamination, particularly at a higher concentration of 16,000 ppm. Therefore, the prolonged submergence of the treated soil …

Oman Gypsum quarry is located 19 km South of Thumrait city, Salalah. Thumrait is the nearest city. Quarry is located 4 Km (well graded road) away from the Muscat- Salalah dual carriage main highway. Nearest sea port for shipment is Salalah Port. This is well connected with high quality road network of Oman. Salalah Port is located 82.0 Km from …

3.4 Unconfined Compressive Strength results of TerraZyme and Gypsum treated soil As seen from chart 4 there is much higher improvement in shear strength of TerraZyme and Gypsum treated soil in 7 days as compare to only TerraZyme treated soil. For maximum dosage of TerraZyme with 6% Gypsum increases in strength is upto 240 kPa. 5 2 146 9 …

Keywords: soil improvement, cement kiln dust, GGBS, CBR improvement 1 Introduction The gypsum soil covers nearly 32% of Iraq [1]. Many struc-tures are constructed on this soil subjected to the total or differential settlement, mainly when the water attacks these sites. This article studies the effect of adding cement

The soil and 2% cement are mixed with 10%, 20%, or 30% CKD (by weight of the dry soil) and samples are compacted at the optimum moisture content. ... the …

Sabkha soils (or saline soils) are soft or loose soils and highly compressible. This paper investigates the potential of utilizing ordinary Portland cement (OPC) and marble powder (MP) to develop the properties of sabkha soils using traditional soil mixing. The selection of MP is based on the search for a new waste material, which can be …

Al-Alawi et al. (2020), for example, investigated the change in the UCS of Sabkha soil, which is a poorly graded (SP) from the arid area of Oman. They mixed 3%, 6%, 9%, and 12% by weight of gypsum with the soil and concluded that the 28 d UCS …

One of the methods for soil improvement is that the problematic soil is replaced by suitable soil. ... Al-Sarmi H (2005) Effect of lime, cement and Sarooj (artificial pozzolan) on the swelling potential of …

With a lack of standard lateritic soil for use in road construction, suitable economical and sustainable soil-stabilization techniques are in demand. This study aimed to examine flue gas desulfurization (FGD) gypsum, a by-product of coal power plants, for use in soil–cement stabilization, specifically for ability to strengthen poor high-clay, …

This study examines the properties of Sabkha soil obtained from Sohar city of Oman. The Sabkha soil samples were further treated with Gypsum obtained from waste …

On the other hand, using cement slurry showed no adequate improvement in sabkha soil. Al-Homidy et al. investigated the feasibility of using CKD to enhance the …

The cement-stabilized sabkha soil samples used in the study contained 5 and 10% cement and had thickness ratios (which is the thickness of cement-stabilized sabkha soil/Foundation diameter) of 0.2 ...

2.1 Test Matrix. Five total mix designs are considered for this study including one control batch, two batches that involve fine gypsum as a partial replacement for cement in different amounts (20% and 10%), and two batches that involve the whole gypsum as partial replacements for 10% and 20% of cement in the concrete.

From the research results obtained the largest CBR (California Bearing Ratio) value occurs in the variation of the addition of Gypsum and Cement 5% with the length of time for soil specimens to be ...

This study examines the properties of Sabkha soil obtained from Sohar city of Oman. The Sabkha soil samples were further treated with Gypsum obtained from waste plasterboards at varying ...