1D Compressibility of DMS Treated With Cement-GGBS Blend

Kaliannan, Suaathi; Chan, Chee‐Ming; Suratkon, Azeanita

doi:10.1051/matecconf/20178701004

Cited by 4 publications

(3 citation statements)

References 8 publications

(9 reference statements)

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“…Unary binders of GGBS and CKD were prepared for comparison purposes. The replacement levels were considered adequate for good coverage for investigation and evaluation purposes per Kaliannan et al (2017), who used a similar replacement in their work on mixtures made from GGBS and cement.…”

Section: Experimental Designmentioning

confidence: 99%

Improving Soft Subgrade Stability Using a Novel Sustainable Activated Binder Derived from By-Products

Jwaida,

Dulaimi,

Jafer

et al. 2024

Geotech Geol Eng

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Soft soil concerns, due to high compressibility and low bearing capacity, prompted an investigation into stabilizing clay soil. Traditionally, binder including cement or lime has been used as stabilizers though a current requirement of alternatives is stem from environmental concerns. The study focused on the viability of using a novel binary activated blended binder composed of environmentally friendly materials, namely ground granulated blast furnace slag (GGBS) activated by cement kiln dust (CKD). The experimental work included investigating the impact of the developed binders on the Atterberg limits, standard Proctor compaction, California Bearing Ratio (CBR), unconfined compressive strength (UCS), and field-emission scanning electron microscopy (SEM)/energy-dispersive X-ray spectroscopy. CBR tests were conducted after 7 days of curing or soaking, while UCS and SEM analyses were conducted after 7 and 28 days of curing. A fixed binder ratio of 9% was maintained, with GGBS blended at 25%, 50%, and 75% with CKD. For comparison, samples of untreated and treated soils with unary binders from GGBS and CKD were also prepared. Results indicated that activated binders notably decreased soil plasticity and maximum dry density, while elevating optimum moisture content, CBR, and UCS, especially in later stages of treated soil and unary GGBS binder. Unary CKD binder exhibited a similar trend to activated binders. The activating of 25% GGBS with 75% CKD provided the optimum binder which increased the mechanical strengths by about 6 times than untreated soil. SEM revealed substantial formations of C-S-H and C-A-H gel, along with ettringite, intensifying with time. This research provides viable outcomes for stabilizing clay soil using environmentally friendly binders, demonstrating significant improvements in soil properties, particularly when using the binary activated blended binder consisting of GGBS and CKD. Graphical Abstract

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Section: Experimental Designmentioning

confidence: 99%

Improving Soft Subgrade Stability Using a Novel Sustainable Activated Binder Derived from By-Products

Jwaida,

Dulaimi,

Jafer

et al. 2024

Geotech Geol Eng

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“…Mansour et al (2015) [14] conducted study on stabilized Egyptian soft soil and reported that Mv decreased as the cement content and applied stress increased. Suaathi Kaliannan et al (2017) [16] also conducted a study on solidified DMS and found that Mv decreased significantly with vertical stress increment however, the rate slowed down as the binder content increased. It can be concluded that All specimens are considered very high compressible except 15K which is considered as just high compressible.…”

Section: Fig 4: Relationship Between Yield Stress and Cement Contentmentioning

confidence: 99%

1D Compressibility of High Moisture Content Clays Solidified with Small Cement Dosages

Gubran

Chan

2020

MSF

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Soft soil is normally associated with high moisture content and fine content which result in high compressibility and low strength. However, a proper treatment such as solidification by means of hydraulic binders is required in order to be usable for beneficial purposes (e.i backfilling). This paper experiments the effects of cement treatment on the one-dimensional (1D) consolidation behavior of a high moisture content (MC) soil (twice liquid limit), based incremental loading test. The effects of Portland cement addition are evaluated for dosages ranging from 0 % to 15% by dry mass of soil. After curing, it was found that 10 % cement was required to make meaningful reduction in MC for kaolin while no major difference was noted between after mixing and after curing for DMS. In kaolin the moisture content decreased by 6.5 % for each 5 % increment of cement. Similarly, the MC of DMS reduced by 10 % for each 5 % increment. Thus, the reduction, immediately after mixing, in DMS was higher by 3.5 % compared to kaolin. The most evident effect of the treatment feasibility is the development of a cementation-induced yield stress after 7 days of curing: the bigger the cement dosage, the greater the yield stress and the greater the vertical effective stress that can be sustained at any void ratio. The maximum yield stress at 15 % cement content was found 30 kPa and 70 kPa for DMS and kaolin respectively. The highest void ratio values were found in the control specimens (3.77) in kaolin and DMS (5.66) whereas the lowest void ratio was corresponded to 15 % cement 3.35 and 4.65 for kaolin and DMS respectively. The control specimens decreased dramatically from 38.93 m2 / KN - 0.13 m2 / KN and 36.03 m2 / KN - 0.19 m2 / KN for kaolin and DMS specimens respectively. The results correspondingly provide a consistent depiction of the effects of cement treatment on MC, void ratio and coefficient of volume compressibility. The effectiveness of the treatment is obvious compared to the untreated soil.

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“…Wang et al (2017) indicated that MgO can be used in the stabilization of marine soils with satisfactory compressibility. The work of Kaliannan et al (2017) used cement-GGBS blend in the stabilization of dredged materials, and found that GGBS replacement is efficient in enhancing the geotechnical properties of the stabilized dredged materials. However, it was also indicated in this study that GGBS cannot be used alone in soil improvement.…”

Section: Compressibility and Permeability Of Stabilized Clay Slurrymentioning

confidence: 99%

Stabilization of dredged clay slurry with carbide sludge (CS)-ground granulated blastfurnace slag (GGBS) for land reclamation

Li¹

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I would like to express my sincere gratitude and appreciation to my supervisor Asst Prof.Yi Yaolin for his patient instruction, helpful advice, continuous support, valuable guidance, and motivation on my research work. From the selection of research topics to the design of the experiment programs, he gave me many insightful suggestions. His guidance helped me in all the time of research and writing papers and this study.I would like to thank the help provided by lab staffs on my experiments, like Mr. Vincent,

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1D Compressibility of DMS Treated With Cement-GGBS Blend

Cited by 4 publications

References 8 publications

Improving Soft Subgrade Stability Using a Novel Sustainable Activated Binder Derived from By-Products

Improving Soft Subgrade Stability Using a Novel Sustainable Activated Binder Derived from By-Products

1D Compressibility of High Moisture Content Clays Solidified with Small Cement Dosages

Stabilization of dredged clay slurry with carbide sludge (CS)-ground granulated blastfurnace slag (GGBS) for land reclamation

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