Influence of Fly Ash Additives on Strength Characteristics of Soil–Cement as a Material for Waste Storage Construction

Zotsenko, Mykola; Mykhailovska, Olena; Ширинзаде, И Н; Lartseva, Іryna

doi:10.1007/978-3-030-85043-2_43

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…During the construction of a waste storage facility, it is advisable to design the distances between the centers of neighboring soil elements 0.8 times the diameter of the soil-cement elements. Soil-cement elements are proposed to be manufactured by the drilling method [5,6].…”

Section: Research Results and Discussionmentioning

confidence: 99%

Development of a method of utilization of oil and gas industry waste at Pereshchepyno field (Ukraine)

Mykhailovska

Zotsenko

Kulik³

2022

TAPR

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The object of research is the technological solutions for the construction of sludge barns at the Pereschepyno field (Ukraine). One of the most problematic places is the lack of reliable insulation of sludge barns and storage facilities. The study used a screen type «wall in the soil» of elements of soil cement, which prevents the filtration of the aqueous phase. The screen was built monolithic. It is proposed to arrange the shade between the centers of the curtain equal to 0.8 of the diameter of the element. It is proposed to make elements from soil cement by the brown-mixing method. After 28 days (hardening of the elements) up to 60 % of the soil was removed from the waste storage area. This is due to the fact that the proposed method of arrangement of waste storage has a number of features. Over time, the strength and permeability of the aqueous phase of soil cement increase. It is proposed to fill the storage with drilling waste after the enclosing elements have hardened. In order for the soil to have a suitable humidity of 4–5 %, it is proposed to dry it outdoors. It is proposed to build a cover over the soil dump. If the optimum humidity of the mixture is not obtained after drying and mixing the waste with the soil, it is proposed to add a drying additive (ash removal of Mykolayiv thermal power plant). The amount of additive is from 1.5 to 3 % depending on the type of soil. Next, it is proposed to seal the layers of sludge and loam by rammers. After compaction, the operation is repeated. Compaction of soil layers is proposed to be carried out at optimum humidity. In comparison with similar known methods, this method provides the following advantages: low cost of manufacture due to the use of a waterproof layer of soil as the bottom of the structure; high water resistance – W12; high compressive strength; environmental safety and durability.

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Section: Research Results and Discussionmentioning

confidence: 99%

Development of a method of utilization of oil and gas industry waste at Pereshchepyno field (Ukraine)

Mykhailovska

Zotsenko

Kulik³

2022

TAPR

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“…First, cement and water were mixed in the required amount [13]. The amount of cement was 20% of the mass of dry soil.…”

Section: Methodsmentioning

confidence: 99%

Utilization of drilling waste when drilling wells in the fields of the western oil and gas region of Ukraine

Mykhailovska,

Zotsenko

2024

IOP Conf. Ser.: Earth Environ. Sci.

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The article analyzes known technological solutions for storage and processing of well drilling waste. The advantage of the solution is the presence of a soil-cement coating. The authors propose to fill the waste repository with alternating layers of drilling mud and fly ash of the Darnytsia Thermal Power Plant. The authors advise to use sorbents for neutralization of petroleum products as needed. It is suggested to introduce the sorbent periodically into the mud storage barn. The thickness of the layers for disposal with the addition of ash was chosen in order to obtain optimal humidity. It is proposed to add ash removed from the Darnytsia Thermal Power Plant when arranging the walls and coating of the mud storage tank from soil cement. When adding 10% of ash by weight of cement, the compressive strength increases by 8.01% on average, and when adding 20% - by 12.57%. The results obtained show that the average compressive strength of soil cement samples increases with an increase in the percentage of fly ash content. The results were compared to samples without additives.

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“…The mixture was stirred until smooth for at least 5 minutes. Preparation of soil-cement samples in the laboratory was carried out with the approximation of technological conditions [11].…”

Section: Methodology and Researchmentioning

confidence: 99%

Drilling Waste Disposal Technology Using Soil Cement Screens

Mykhailovska

Zotsenko

2022

KEM

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Known technological solutions for well drilling waste utilization are analyzed. The technological decision of the device of storage of drilling waste from soil-cement elements with the device of a covering from soil-cement is offered. It is proposed to fill the repository with waste in layers of drilling mud, site soil, using a layer of composition for neutralization with the use of ash burning wood residues. The composition is proposed to be prepared near storage facilities. It is proposed to make the neutralizing composition periodically in the sludge storage as they are filled. In the case of a high level of sludge contamination with petroleum products, sorbents are added in addition to filling the storage. The thickness of the layers is chosen based on optimal humidity. It is offered to add ash from the Mykolayiv thermal power plant in the amount of 5 wt.% By weight of cement when installing the walls and covering the sludge storage from soil cement. It was found that with increasing the shelf life of samples in water to 270 days increases the average compressive strength of soil cement samples without additives and with the addition of the appropriate percentage of fly ash by more than 7%.

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Influence of Fly Ash Additives on Strength Characteristics of Soil–Cement as a Material for Waste Storage Construction

Cited by 4 publications

References 7 publications

Development of a method of utilization of oil and gas industry waste at Pereshchepyno field (Ukraine)

Development of a method of utilization of oil and gas industry waste at Pereshchepyno field (Ukraine)

Utilization of drilling waste when drilling wells in the fields of the western oil and gas region of Ukraine

Drilling Waste Disposal Technology Using Soil Cement Screens

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