In-situ Fine Basalt Soil Reinforced by Cement Combined with Additive DZ33 to Construct Rural Roads in Gia Lai Province, Vietnam

Tran, Brian; Le, Ba-Anh; Phan, Vu To Anh; Nguyen, Huynh

doi:10.5829/ije.2020.33.11b.03

Cited by 5 publications

(4 citation statements)

References 4 publications

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“…Several methods have been considered and employed regarding the soil improvement techniques, including mechanical stabilization, stabilization using soft aggregates, bituminous stabilization, lime stabilization, cement stabilization, thermal stabilization, chemical and electric stabilizations. Various admixtures, such as cement, fly ash, lime, blast-furnace slag cement, enzyme, and calcium chloride, were used in different areas in the world [4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Engineering properties of soil stabilized with cement and fly ash for sustainable road construction

Phan

Nguyen

2021

IJE

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Section: Introductionmentioning

confidence: 99%

Engineering properties of soil stabilized with cement and fly ash for sustainable road construction

Phan

Nguyen

2021

IJE

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“…Various admixtures such as cement, fly ash, lime, blast-furnace slag cement, alkaline activation, eggshell powder, sodium chloride, polypropylene fiber, and calcium chloride were used in different areas in the world [6], [7], [10]- [17]. Recently, Tran et al [18] investigated the cement -DZ33 treated soil at a site for a rural road in Vietnam and concluded that the treated soil had been improved significantly, including elastic modulus of reinforced soil, splitting tensile strength, compressive strength, and California Bearing Ratio (CBR). Rice husk Ash (RHA) is an agricultural by-product of rice milling.…”

Section: Introductionmentioning

confidence: 99%

Potential Usage of Rice Husk Ash-Cement Based Soil in Subbase and Base Courses in Road Construction

Phan,

Nguyen,

Tran

et al. 2023

IJIE

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This paper presents an experimental study of rice husk ash-cement-based soil for layers in roadway construction. Rice husk ash (RHA) used in this study is a by-product of rice milling. In this work, twelve proportion mixes were used with varying quantities of RHA (0-30%), and Portland cement blended amounts of 4, 6, 8%. The specimens were prepared by the Proctor mould method, conditioned at room temperature, and tested in soaked and unsoaked conditions. Specified curing periods of 7, 14, 28 days were applied for all types of specimens. Some engineering tests were carried out, such as proctor compaction, unconfined compressive strength, splitting tensile strength, and the stiffness of stabilized soil. Test results indicated a general decrease in the maximum dry density (MDD) and increased optimum moisture content (OMC) with an increase in RHA content. Adding cement and RHA significantly improved the geotechnical properties of stabilized soils, including compressive strength, splitting tensile strength, elastic modulus. In addition, the combination of 80% soil and 20% RHA and 6% cement can be used as the optimum proportion, which satisfied grade 3 of soils stabilized with inorganic adhesive substances, chemical agents, or reinforced soil for road construction, as indicated in the current Vietnamese standard.

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“…According to past studies, traditional additives such as cement, lime, fly ash, etc. have been used to stabilize and improve soil engineering behavior and prevent soil settlement [17][18][19][20]. Despite the high useage of cement to stabilize contaminated soils, the results of previous studies showed that the use of cement is limited [21].…”

Section: Introductionmentioning

confidence: 99%

Remediation Trend of Engineering Behavior of Wastewater Contaminated Clay Using Iron Nano Oxide: Experimental Studies

Sistani

Negahdar

Bamoharram

et al. 2022

IJEE

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Soil polluted with urban wastewater due to defect of wastewater disposal and leakage from wastewater channels is a common type of pollution in urban areas which in addition to environmental damage, has significant effects on soil engineering parameters. In present study, effects of municipal wastewater on mechanical behavior of soil and clay microstructure was studied, and then effects of iron oxide nanoparticles on remediation trend of contaminated soil was investigated. To achieve this, unconfined compressive strength (UCS), collapse and SEM analysis tests were performed on contaminated samples containing 20%, 60% and 100% wastewater at 1, 3 and 5 months and also on contaminated soil remidiated with 0.5-4% Iron nano oxide. Results showed that wastewater reduces shear strength of clay and this decreasing trend increases with increasing percentage and contamination duration. UCS of soil contaminated with 100% wastewater decreased by 49% after 5 months of contamination. Also, wastewater in the soil caused to soil collapse after 5 months . SEM images showed the clay structure became clotted after contamination and soil pores increased compared to natural soil. Improvement phase results showed that by addition of Iron nano oxide to contaminated soil, shear strength significantly increased, and optimal percentage of Iron nano oxide was 3% in which UCS increased by 105.2%. By increasing the percentage of Iron nanoxide, intensity of collapse index of contaminated soil decreases. Best case senario, final strain of soil decreases by 43.4% compared to contaminated soil. Therefore, utilizing Iron nanooxide is recommended to improve engineering behavior of contaminated clay.

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In-situ Fine Basalt Soil Reinforced by Cement Combined with Additive DZ33 to Construct Rural Roads in Gia Lai Province, Vietnam

Cited by 5 publications

References 4 publications

Engineering properties of soil stabilized with cement and fly ash for sustainable road construction

Engineering properties of soil stabilized with cement and fly ash for sustainable road construction

Potential Usage of Rice Husk Ash-Cement Based Soil in Subbase and Base Courses in Road Construction

Remediation Trend of Engineering Behavior of Wastewater Contaminated Clay Using Iron Nano Oxide: Experimental Studies

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