Clay stabilization by using gypsum and paddy husk ash with reference to UCT and CBR value

Roesyanto, .; Iskandar, Rudi; Hastuty, Ika Puji; Dianty, Windy Oky

doi:10.1088/1757-899x/309/1/012026

Cited by 13 publications

(3 citation statements)

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“…It is a naturally occurring mineral that is comprised of calcium sulphate and water, and it is sometimes called hydrous calcium sulphate. Gypsum has better properties than organic additives because it does not cause air pollution and it is cheaper than cement, fire-resistant and resistant to deterioration by biological factors and chemicals [29,57]. It is also a byproduct of many industrial processes.…”

Section: Methodsmentioning

confidence: 99%

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Improving the Early Properties of Treated Soft Kaolin Clay with Palm Oil Fuel Ash and Gypsum

et al. 2021

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Soft soil problems and increased production of fuel waste have emerged due to world population growth. These two problems are prompting engineers to introduce new methods of using waste fuel to stabilize the soil. Previous research has shown clear sustained improvements in soil properties using palm oil fuel ash (POFA) when mixed with a calcium-based binder such as NaCl, lime or cement. The use of such a stabilizing agent can reduce the economic problems associated with reducing the cost of waste disposal and create a sustainable ecological system. It is an alternative method of replacing part of the soil to ensure a balance between economic growth and ecological privilege, leading to the achievement of green technology goals. However, this research is aimed at improving the properties of processed soft kaolin clay with a combination of POFA and gypsum. The physical and mechanical properties of all samples were tested. The results showed a decrease in the specific gravity with the addition of POFA and an increase with gypsum alone, as well as a decrease with a mixture of POFA and gypsum and a decrease in the soil plasticity index due to a better increase in the plasticity limit compared to the liquid limit. This is considered a sign of improved geotechnical properties and reduced linear shrinkage. It was also shown that the treated clay showed an increase in the optimal water content and a drop in the maximum dry density. Nevertheless, it can be concluded that the initial properties of the processed soft kaolin clay with the addition of POFA can be significantly improved.

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Section: Methodsmentioning

confidence: 99%

“…Gypsum is mined and has applications in many products such as drywall used in construction, agriculture and industry [25,26]. Gypsum itself is a non-plastic material [27][28][29]. During the production, construction and demolition of gypsum plasterboards, about fifteen million tons of waste are generated yearly in the world [27,30].…”

Section: Introductionmentioning

confidence: 99%

Improving the Early Properties of Treated Soft Kaolin Clay with Palm Oil Fuel Ash and Gypsum

et al. 2021

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“…Moreover, Calcium Sulfate Dehydrate (CaSO4.2H2O) is the initial material before dehydration and the final product after rehydration. A substantial quantity of gypsum is used as a retarder agent of cement hardening (Roesyanto et al, 2018).…”

Section: Stabilization With Gypsummentioning

confidence: 99%

Comparison of the Use of Cement, Gypsum, and Limestone on the Improvement of Clay through Unconfined Compression Test

Hastuty

2019

Journal of the Civil Engineering Forum

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Soil stabilization is an effort to improve soil properties by adding additives in the soil to increase the soil strength and maintain the shear strength of the soil. There are many materials which can be used as stabilizers. The materials used in this study were cement, gypsum, and limestone, then the compressive strength values were compared by using the Unconfined Compression Test (UCT). The mixture combinations used in this study were 1% to 10% of cement, gypsum, and limestone on clay by curing for 14 days. The compressive strength value resulted from the unconfined compression test on the original soil sample was 1.4 kg/cm2. The original soil was classified as moderately sensitive soil because the sensitivity value of the original soil was 2. 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 mixture of 10%. Similarly, the soil stabilization using limestone and gypsum also obtained its maximum unconfined compressive strength value in the mixture of 10% is 3.307 kg/cm2 and 2.975 kg/cm2, respectively.

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Influence of CaCl2 on Compaction and CBR Characteristics of Gypsum (CaSO4·2H2O) Stabilized High Plastic Clay

Ramanjaneyulu

Kumar²

2021

Lecture Notes in Civil Engineering

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Clay stabilization by using gypsum and paddy husk ash with reference to UCT and CBR value

Cited by 13 publications

References 1 publication

Improving the Early Properties of Treated Soft Kaolin Clay with Palm Oil Fuel Ash and Gypsum

Improving the Early Properties of Treated Soft Kaolin Clay with Palm Oil Fuel Ash and Gypsum

Comparison of the Use of Cement, Gypsum, and Limestone on the Improvement of Clay through Unconfined Compression Test

Influence of CaCl2 on Compaction and CBR Characteristics of Gypsum (CaSO4·2H2O) Stabilized High Plastic Clay

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