Compressive Strength of High Plastic Clay Stabilized with Fly Ash-Based Geopolymer and Its Synthesis Parameters

Varma, N. Mahendra; Kumar, T. Sathish; Nagaraju, V.

doi:10.1007/978-981-16-2260-1_3

Cited by 10 publications

(3 citation statements)

References 20 publications

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“…The CBR value for unsoaked conditions increases due to mixes offering more resistance due to better packing of different sized fractions. Further, for curing samples rapid improvement in the CBR value has been observed this can be attributed to the less attraction of water during the curing process as a result of the dense microstructure of soil particles due to gel formation [17,19,39,40].…”

Section: California Bearing Ratio (Cbr) and Resilient Modulus (Mr)mentioning

confidence: 96%

“…All this literature explains the significant applicability of fly ash-based geopolymer as building materials, especially as concrete or mortar that shows the high mechanical strength, more durable, and sustainable material. However, selected studies are available on fly ash-based geopolymer in expansive soil stabilization [7,12,[14][15][16][17][18][19]. The stabilization of clay soil by means of geopolymerization would improve the mechanical strength (UCS, CBR, etc.).…”

Section: Introductionmentioning

confidence: 99%

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Partial Replacement of Conventional Material with Stabilized Soil in Flexible Pavement Design

2022

IJE

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Due to rapid urbanization and industrialization, the construction of roads increases rapidly for easy and fast transportation. Adequate land is not available everywhere to construct good roads; hence, roads are forcefully built on locally available soil such as loose soil or expansive soil. In this paper, an experimental investigation was carried out on low plastic soil (LPS) to enhance engineering properties by using chemical soil stabilization (fly ash-based geopolymer). The design of flexible pavement thickness was carried out for conventional and stabilized soil material using IITPAVE software as per IRC 37 guidelines. The results show the feasibility of fly ash-based geopolymer significant enhancement of strength were observed in terms of unconfined compressive strength (UCS) for various curing days (0 to 128 days), California bearing ratio (CBR), and Resilient modulus (MR). The microstructural analysis via Scanning Electronic Microscope (SEM) and X-Ray Diffraction Analysis (XRD) was also reveling the formation of geopolymeric gel which leads to the dense matrix to soil mass. The flexible pavement thickness significantly reduces with the application of stabilized low plastic soil.

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Section: California Bearing Ratio (Cbr) and Resilient Modulus (Mr)mentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Partial Replacement of Conventional Material with Stabilized Soil in Flexible Pavement Design

2022

IJE

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“…The compaction of soil has a significant role in determining its geotechnical qualities and overall stability, particularly when soil stabilization is achieved through applying fly ash-based geopolymer [31]. The compaction characteristics of mixtures comprising soil and fly ash have been investigated, revealing that including fly ash in the soil can enhance its compressibility behavior and swelling qualities [32] [33]. The compaction experiments can be utilized to establish the optimal moisture content and maximum dry density of soilfly ash combinations [34].…”

Section: Introductionmentioning

confidence: 99%

Compaction Properties of the Fly-Ash Based Geopolymer on Silt Soil

Hartono

2024

GEOMATE

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This study investigates the effect of varying the alkali ratio and the molarity of NaOH on the compaction properties of silt stabilized with fly ash-based geopolymers. Geopolymers offer an ecologically sound alternative to traditional cementitious materials and show promise in soil stabilization applications. Fly ash is a frequently utilized precursor in producing geopolymers. Although the benefits of utilizing fly ash as a precursor for geopolymer creation and its potential for stabilizing soil have been recognized, there has been insufficient exploration into refining alkali ratios and NaOH molarities to obtain the desired compaction characteristics. This study examines the compaction characteristics of stabilized silt soil by studying the effects of alkali ratio and NaOH molarity. The standard Proctor compaction test has determined the optimum moisture content (OMC) and maximum dry density (MDD). The results indicate that the utilization of fly ash geopolymer stabilization can improve the compaction characteristics of soil by increasing its MDD and decreasing its OMC. The observed MDD reached its highest value of 16.23 kN/m 3 . The fly ash geopolymer stabilization MDD was reached with 14 molars of sodium hydroxide and a ratio of 2 for the alkali activator. The OMC value of 9.12% was also reached in the same conditions. The alkali ratio and NaOH molarity had a significant impact on the compaction parameters of geopolymer-stabilized silt soil. Understanding the impact of these factors is crucial for the success of soil stabilization projects.

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Assessment of Behaviour of Footing Resting on Dispersive Soil Stabilized by Fly Ash Amended Red Mud

Abilash,

Balreddy

2024

Lecture Notes in Civil Engineering

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Compressive Strength of High Plastic Clay Stabilized with Fly Ash-Based Geopolymer and Its Synthesis Parameters

Cited by 10 publications

References 20 publications

Partial Replacement of Conventional Material with Stabilized Soil in Flexible Pavement Design

Partial Replacement of Conventional Material with Stabilized Soil in Flexible Pavement Design

Compaction Properties of the Fly-Ash Based Geopolymer on Silt Soil

Assessment of Behaviour of Footing Resting on Dispersive Soil Stabilized by Fly Ash Amended Red Mud

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