Performance evaluation of ultrafine cement as a grout for reservoir impermeability improvement

Kang, Hee; Tamang, Bibek; Jin, Jihuan; Lee, Seung-Joo; Kim, Yong-Seong

doi:10.1007/s11440-022-01594-6

Acta Geotech.

2022

DOI: 10.1007/s11440-022-01594-6

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Performance evaluation of ultrafine cement as a grout for reservoir impermeability improvement

Hee Kang¹,

Bibek Tamang²,

Jihuan Jin³

et al.

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Cited by 3 publications

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“…Based on previous studies of the properties of UFC, this study reveals the mechanism of UFC's influence on the mechanics and microstructure of HA-containing cemented soil [13,50,51]. In actual engineering, the research in this paper can be cited, and UFC can be used to reduce CO 2 emissions and environmental impact.…”

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confidence: 87%

Effect of Ultra-Fine Cement on the Strength and Microstructure of Humic Acid Containing Cemented Soil

et al. 2023

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The peat soil in the Dianchi Lake area of Yunnan, China, is widely distributed, bringing many problems to engineering. The peat soil foundation is usually treated by the cement mixing method, and the reinforcement effect of cemented soil is mainly affected by humic acid (HA). Ultra-fine cement (UFC) can improve cement performance and reduce cement consumption, decreasing CO2 emissions and the impact of human activities on the environment. Simulated peat soils in different environments are prepared with HA reagent and cohesive soil, reinforced by composite cement curing agent mixed with ultrafine cement (UFC). The relationship among the UFC proportion, HA reagent content, soaking time, and sample strength was studied. The unconfined compressive strength test (UCS), scanning electron microscope (SEM), and PCAS microscopic quantitative test techniques were used to explore the mechanism of the effect of UFC on the strength of HA-containing cemented soil. The increasing UFC proportion in the composite cement curing agent gradually increased HA-containing cemented soil’s strength. UFC significantly reduced the percentage of macropores in HA-containing cemented soil and made the microstructure denser. The HA-containing cemented soil’s qu increased the most when the UFC proportion increased from 0% to 10%. The solidification effect of the composite cement curing agent mixed with UFC was always stronger than that of OPC. The composite cement curing agent with a UFC proportion of 10% is practical. Cement is still an important building material in the current construction industry, and UFC provides a new method for reducing environmental impact in engineering construction.

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Effect of Ultra-Fine Cement on the Strength and Microstructure of Humic Acid Containing Cemented Soil

et al. 2023

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A comparative investigation of hydration reaction of Portland cement with the use of alkanolamine as a chemical admixture or grinding agent under laboratory condition

Kang,

Moon

2024

Journal of Building Engineering

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Sulfoaluminate cement-based double-liquid material grouting in fractured rock

Liu,

Pan,

Xiong

et al. 2024

Géotechnique Letters

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Grouting is a very effective means to repair modified fractured rock. However, problems such as severe grout leakage, slow increase in stone body strength, uncontrolled solidification time and poor permeability are often encountered in the process of traditional grouting reinforcement of fractured surrounding rock. Sulphoaluminate cement-based double-liquid material has the characteristics of quick setting, early strength, micro-expansion and high strength, which shows good applicability in grouting reinforcement of fractured surrounding rock. At present, there are few reports on this material. Therefore, this paper mainly introduces the performance of sulphoaluminate cement-based grouting material, grouting technical process and engineering application case. The sulphoaluminate cement-based double-liquid material grouting technology proposed in this study will provide a new treatment method for the reinforcement of fractured rock masses in underground engineering.

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Performance evaluation of ultrafine cement as a grout for reservoir impermeability improvement

Cited by 3 publications

References 8 publications

Effect of Ultra-Fine Cement on the Strength and Microstructure of Humic Acid Containing Cemented Soil

Effect of Ultra-Fine Cement on the Strength and Microstructure of Humic Acid Containing Cemented Soil

A comparative investigation of hydration reaction of Portland cement with the use of alkanolamine as a chemical admixture or grinding agent under laboratory condition

Sulfoaluminate cement-based double-liquid material grouting in fractured rock

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