Stabilization of Silty Clayey Dredged Material

Nguyen, Thi Thuy Minh; Rabbanifar, Saeed; Brake, Nicholas A.; Qian, Qin; Kibodeaux, Kyle; Crochet, Harold E.; Oruji, Soheil; Whitt, Remington; Farrow, Joshua; Belaire, Brandon; Bernazzani, Paul; Jao, Mien

doi:10.1061/(asce)mt.1943-5533.0002391

Cited by 36 publications

(18 citation statements)

References 29 publications

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“…UCS of cement-soil in common engineering always shows a more reliable than quicklime [40,41]. However, the comparison results for the strength in this study reverse other study's results [42].…”

Section: Ucs Comparison Of S/s Mixture With Binder Materialscontrasting

confidence: 41%

Solidification/Stabilization of Textile Sludge as Subgrade: Usage of Binders and Skeleton Material

Cheng

Chen

et al. 2020

Advances in Civil Engineering

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This study investigates the disposal of textile sludge via laboratory and field tests while protecting the eco-environment. Solidification/stabilization (S/S) technology and skeleton construction method are introduced to investigate the application of S/S sludge for subgrade material. S/S is to enhance the sludge strength and stabilize the metal(loid)s and hazardous organics in the textile sludge. Skeleton construction method aims to decrease the liquid-solid ratio in mixture to reduce the binder dosage and save binder cost. In the laboratory, binders and skeleton material are implemented to investigate the differences in unconfined compressive strength (UCS) to explore the optimal mixture. Results illustrate that UCS of binder-sludge is below 100 kPa and enhanced more than 400 kPa after adding gypsum and skeleton material. Skeleton soil material with high plasticity index and low moisture content improves UCS significantly. Scanning electron microscopy test shows the physical microstructure of sludge is greatly improved for the particular space grid structure formed by the particles and cementitious products. The leaching test shows the metal(loid)s and organics in leachate are decreased after S/S treatment and below the standard value. Finally, the textile sludge was disposed for subgrade via the technology. The strength and leaching results of field tests are in good agreement with the laboratory results. The bearing capacity of the practical subgrade meets the design requirements.

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Section: Ucs Comparison Of S/s Mixture With Binder Materialscontrasting

confidence: 41%

Solidification/Stabilization of Textile Sludge as Subgrade: Usage of Binders and Skeleton Material

Cheng

Chen

et al. 2020

Advances in Civil Engineering

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“…The pH values of the dredged soil samples were obtained in the range of 7.2 and 8.9, which are defined from slightly alkaline (7)(8) to moderately alkaline (8)(9). The classification of the dredged soil sample was made using consistency limits and particle size distribution curves according to USCS [22].…”

Section: Index and Compressibility Properties Of Natural Dredged Soilmentioning

confidence: 99%

“…Dredged soil can be used in land reclamation applications such as wildlife habitat development, construction and filling materials, road and foundation embankments [4], [5], [6]. These types of soils have been known to have high compressibility and low shear strength because of their organic matter content (OM) [7], [8], [9]. Therefore, the geotechnical properties and compressibility behavior of this dredged material should be examined in detail before using it in these applications.…”

Section: Introductionmentioning

confidence: 99%

“…Increasing its resistance by mixing various additives to dredged materials is a popular method of soil improvement among researchers. Nguyen et al [9] studied on the geotechnical index properties of untreated and treated clayey dredged material. Quicklime, hydrated lime, Portland cement, and Class F fly ash were used as a stabilizer material.…”

Section: Introductionmentioning

confidence: 99%

“…While the Portland cement showed the most significant improvement, the fly ash had the least effect [9]. Lei et al [12] focused on the effect of the polyacrylamide (PAM) addition on the compressibility behavior of the dredged clay.…”

Section: Introductionmentioning

confidence: 99%

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Experimental evaluation of compressibility parameters of lime and silica fume stabilized dredged soil

Develioğlu

Pulat

2020

Environmental Research and Technology

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The use of alternative materials in civil engineering applications contributes to sustainable development and the economy. Large amounts of sediment are produced as waste material regarding to dredging activities in canals and ports. Storage or disposal of this material may cause some environmental and economic problems. To overcome these problems, dredged soils can be used for various civil engineering applications such as filling materials of road, foundation, and embankment. However, dredged soils generally have low bearing capacity, shear strength, and high compressibility due to their organic matter content. Therefore, these soils need to be improved with various additives before using as fillers. In this study, the index and compressibility parameters of a dredged soil were examined. The dredged soils were obtained from İzmir Bay. In the first part, Atterberg's limit test, sieve analysis, specific gravity, pH determination, scanning electron microscope analysis, Fourier transform infrared spectroscopy and consolidation test has been conducted for dredged samples which have various organic matter content (0, 4, 7 and 11%). In the next part, natural dredged soil samples were mixed with lime and silica fume in various proportions (5, 10, 15, and 20%), and compressibility performance was compared with the natural samples. It has been obtained that liquid and plastic limit, compression index, and void ratio change of natural dredged samples increased when organic matter content increased. While the silica fume has a negative effect on the compressibility behavior of dredged soil, the lime has a positive effect.

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Effect of Natural Pozzolans Inclusion on CBR Value of Dredged Soil Material

Utama,

Harianto

2024

Lecture Notes in Civil Engineering

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Stabilization of Silty Clayey Dredged Material

Cited by 36 publications

References 29 publications

Solidification/Stabilization of Textile Sludge as Subgrade: Usage of Binders and Skeleton Material

Solidification/Stabilization of Textile Sludge as Subgrade: Usage of Binders and Skeleton Material

Experimental evaluation of compressibility parameters of lime and silica fume stabilized dredged soil

Effect of Natural Pozzolans Inclusion on CBR Value of Dredged Soil Material

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