Physio-Chemical Properties, Consolidation, and Stabilization of Tropical Peat Soil Using Traditional Soil Additives — A State of the Art Literature Review

Ahmad, Afnan; Sutanto, Muslich Hartadi; Al-Bared, Mohammed Ali Mohammed; Harahap, Indra Sati Hamonangan; Abad, Seyed Vahid Alavi Nezhad Khalil; Khan, Mudassir Ali

doi:10.1007/s12205-021-1247-7

Cited by 19 publications

(14 citation statements)

References 123 publications

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“…The observed strength enhancement due to SF may be associated with the formation of calcium silicate hydrate (C–S–H) gel and calcium silicate (CS) [ 7 , 52 ], while the combined effect of SF and OPC may be associated with the formation of calcium silicate (CS) and hydrated components as a result of hydration, i.e., calcium aluminate hydrate (C–A–H), calcium silicate hydrate (C–S–H) gel, and AFt formation. [ 1 ]. Moreover, the development of greater interfacial confinement bonding, roughness, contact area, and friction mobilization upon the loading of the stabilized peat yielded higher CBR values [ 53 ].…”

Section: Resultsmentioning

confidence: 99%

“…Histosol, moss, bogs, fen, and mires are widely classified as peat soil that originates from the anaerobic decaying of plants and animals. Peat soil is considered the most undesirable base material for any sort of construction activity [ 1 ]. The poor engineering properties associated with peatland, i.e., high water content and high void ratio, result in low shear strength and compressible behavior, making it unable to bear infrastructure loads.…”

Section: Introductionmentioning

confidence: 99%

“…Among various soil stabilization techniques, sustainable chemical stabilization gaining interest around the globe [ 3 ]. Several binders, including traditional and non-traditional additives, are currently used to strengthen peat [ 1 , 2 ]. However, the implementation of secondary waste materials is highly encouraged to avoid the pressing issues of its disposal [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

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The Implementation of Industrial Byproduct in Malaysian Peat Improvement: A Sustainable Soil Stabilization Approach

et al. 2021

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Peat is a well-known problematic soil associated with poor engineering properties. Its replacement with an expensive competent foundation material is practiced for road embankment construction which is costly and causes greenhouse gas emissions. Therefore, this paper investigated the effectiveness of a byproduct from a metal industry (silica fume) to stabilize peat along with ordinary Portland cement (OPC) through a series of experimental tests. After peat-indexed characterization, a number of standard compaction and mechanical tests were performed on the stabilized and parent peat. For this purpose, nine designated mixes were prepared possessing various combinations of silica fume (SF) and 10–20% OPC. Unconfined compressive strength (UCS) and California Bearing Ratio (CBR) tests were carried out after 7, 14, and 28 days of curing to assess strength enhancement and binder effectiveness, and the microstructural evolution induced by the binders was examined with scanning electron microscopy (SEM). The analysis revealed a substantial improvement in mechanical properties with the incorporation of SF and OPC, ultimately meeting the minimum strength requirement for highway construction (i.e., 345 kPa). A peak UCS of 1063.94 kPa was recorded at 20% SF, and an unsoaked CBR value of 42.95 was observed using 15% SF and 15% OPC after 28 days of curing. Furthermore, the increasing percentage of hydraulic binders exhibited brittle, collapsible failure, while the microstructural study revealed the formation of a dense matrix with a refined pore structure in the treated peat. Finally, a significant statistical analysis was carried out by correlating the test parameters. In this way, rather than stockpiling and dumping, an industrial byproduct was implemented in peat stabilization in an eco-friendly manner.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Implementation of Industrial Byproduct in Malaysian Peat Improvement: A Sustainable Soil Stabilization Approach

et al. 2021

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“…Generally, the average liquid limit for peat varies from 200 to 600% in the tropical region, while for bog peat, it is in the range of 800 to 1500 % [16], [17]. The liquid limit of tropical peat soil in Malaysia ranges from 130 % to 400% [18], [19], while [20] stated that the liquid limit for peat soil is 149% and 162%.…”

Section: Liquid Limitmentioning

confidence: 99%

“…The organic content of various peat soil types varies in the range of (25-98.46%) [17]. The organic content of Malaysian peat soils ranges from 70% to 98% [26][27][28]19].…”

Section: Organic Contentmentioning

confidence: 99%

Physical Properties of Undisturbed Tropical Peat Soil at Pekan District, Pahang, West Malaysia

Wahab

Hasan

Kusin

et al. 2022

IJIE

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Peat soilare considered soft soilwith havingweakcharacteristicssuch as low shear strength, high moisture content, and compressibility. Construction perspective, peat soilis consideredas unstable soil due to its poor engineering properties. It may cause an extensive loss in road orbuilding construction projects. Thekey objectives of the current study areto examinethe physical properties of peat soil including shear strength, liquidlimit, moisturecontent, organic content, pH, and dry densityof peat soil inPekandistrict.The peatsamples were collected fromKampung Bahru(KB), Kampung Lancing I(KLI), and Kampung LancingII (KL II), Pekan District, Pahang, Malaysia. Thefinding indicates that the shear strength (kPa) for was measured in between 7.2 to 8.2 kPa. The water content was recorded 537.10%to635.28%. The liquid limit was examined 137.638%to 152.540 %, themaximum drydensity wasexamined6.68 x 10-7kg/cm3to 7.99x 10-7kg/cm3. Theaverage organic content was calculated as approximately 95.88 % to98.48 %. In comparisonwith previous study,its indicatedthat the investigatedpeat soil in Pekan area is mainlycontent with lower shearstrength, highwater content, liquid limit, and low density, resulting in low strengthening properties. Based on the examined physical properties, its specifiedthat peat did not have adequate stability as a road or building foundation.Strengthenof peat are highlyrecommendedfor any types of construction onpeatlandin Pekan district, Pahang, Malaysia.

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Tamarind gum: a novel eco-friendly stabilizer to improve the geotechnical properties of high plastic clay

Sujatha,

Revanth,

Vishwanath

et al. 2023

Clean Techn Environ Policy

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Physio-Chemical Properties, Consolidation, and Stabilization of Tropical Peat Soil Using Traditional Soil Additives — A State of the Art Literature Review

Cited by 19 publications

References 123 publications

The Implementation of Industrial Byproduct in Malaysian Peat Improvement: A Sustainable Soil Stabilization Approach

The Implementation of Industrial Byproduct in Malaysian Peat Improvement: A Sustainable Soil Stabilization Approach

Physical Properties of Undisturbed Tropical Peat Soil at Pekan District, Pahang, West Malaysia

Tamarind gum: a novel eco-friendly stabilizer to improve the geotechnical properties of high plastic clay

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