Strength and Compressibility Characteristics of Peat Soil

Karthigeyan, S.; Ramachandran, A.

doi:10.17577/ijertv8is120205

Cited by 2 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Peat has a spongy texture as when the soil was extruded on squeezing, it was observed that the soil was somewhat pasty and muddy water squeezed out [4]. Peat also contains high organic content, usually more than 75% [5,6]. However, according to Wetlands International (2010) [7], the organic soil containing more than 65% organic matter also known as a peat soil.…”

Section: Introductionmentioning

confidence: 99%

Design of Industrial Mg-Rich Gypsum Waste with Concrete Waste Aggregate for Compressibility of Problematic Soil

Khairun Najihah Kamarudin,

Nurmunira Muhammad,

Abdoullah Namdar

2024

ARAM

View full text Add to dashboard Cite

Peats are often considered as a geotechnically problematic soil due to their poor behaviour and exhibit low soil properties like high compressibility, low shear strength, high fibre content, high moisture content and low bearing capacity values. Chemical stabilization was proven to be an effective method to stabilize the problematic soil. To date many additives like Ordinary Portland Cement, fly ash, lime and other alternatives binder has been applied to improve the compressive strength of the problematic soil. The study describes the effect of compressibility of improved peat soil using waste from industrial such as Mg-rich synthetic gypsum (MRSG) by-product and concrete waste aggregate from institution laboratory waste that can be used to improve the settlement problem of the Gebeng, Malaysia peat soil. The test was conducted at varying percentages of MRSG and concrete waste aggregate additives at 5%, 10%, 15%, and 20% by weight of the soil. The unconfined compression strength (UCS) test was determined to obtain the optimum strength ratio and the data revealed that the optimum ratio of gypsum and concrete waste required to enhance the properties of peat soil were at 5% gypsum, 10% concrete waste, and 10% concrete waste combined with 10% gypsum. Coefficient of consolidation, compression index, and coefficient of volume compressibility were obtained by oedometer test for both untreated and treated peat soil with additives. The compression ratio of the peat soil indicated the peat was very compressible and however, the compression ratio was observed at very slightly compressible once the soil stabilized with the optimum ratio mix. The results indicated that the combination of these two additives improved the compressibility characteristics of peat soil. This research will contribute to the fundamental behaviour of geotechnical problematic soil in Malaysia which results in sustainable approach by recycling the industrial and institutional waste, Mg-rich gypsum and concrete waste aggregate for soil improving instead of implementing soil removal replacing techniques.

show abstract

Section: Introductionmentioning

confidence: 99%

Design of Industrial Mg-Rich Gypsum Waste with Concrete Waste Aggregate for Compressibility of Problematic Soil

Khairun Najihah Kamarudin,

Nurmunira Muhammad,

Abdoullah Namdar

2024

ARAM

View full text Add to dashboard Cite

show abstract

“…All forms of soil stabilisation can be broadly categorised into two groups: those that employ mechanical methods and those that utilise chemicals. Previous research has highlighted the low mechanical strength of peat soil and the challenges it poses in construction due to its inadequate structural stability [2]. Peat soil is rarely utilised for construction works in Malaysia following its inability to provide stability for built structures, as characterised by low shear strength and high-water content.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Compaction Characteristics of Peat Soil through Ground Granulated Blast Furnace Slag (GGBS) Stabilisation

Mohd Yunus,

Hasni,

Mazlan

et al. 2023

Constr.

View full text Add to dashboard Cite

Peat soil is renowned for its compressibility problem that can give rise to issues such as ground settlement, particularly within the spectrum of construction endeavours. Conversely, the implementation of chemical stabilisation, involving the incorporation of suitable additives, is contemplated prior to commencing construction activities. Ground Granulated Blast Furnace Slag (GGBS), which is a byproduct of the iron and steel industry, stands out as a prominent additive that can augment the engineering attributes of peat soil. This investigation focuses on the compaction characteristics of peat soil treated with varying proportions of GGBS, as evaluated through the Modified Proctor test. It involved examining the impact of diverse GGBS additions on the liquid limit of peat soil. The findings showed that the introduction of GGBS yielded a substantial reduction in the liquid limit of peat soil, signifying an elevated susceptibility to moisture and an increase in plasticity. Moreover, the incorporation of GGBS into peat soil prompted an increase in its Maximum Dry Density (MDD) and a reduction in its Optimum Moisture Content (OMC). Notably, the peak MDD, registering at 1000 kg/m³, was achieved at a GGBS content of 50%, marking the highest value observed in this study. The OMC values further indicated the lowest moisture content, standing at 29%, with the addition of 25% GGBS to the peat soil. These outcomes convincingly advocate that the utilisation of GGBS in treating peat soil engenders positive enhancement in its compaction characteristics, specifically pertaining to MDD and OMC. Such enhancement in engineering properties holds promising implications for potential stability.

show abstract

Strength and Compressibility Characteristics of Peat Soil

Cited by 2 publications

References 2 publications

Design of Industrial Mg-Rich Gypsum Waste with Concrete Waste Aggregate for Compressibility of Problematic Soil

Design of Industrial Mg-Rich Gypsum Waste with Concrete Waste Aggregate for Compressibility of Problematic Soil

Enhancing the Compaction Characteristics of Peat Soil through Ground Granulated Blast Furnace Slag (GGBS) Stabilisation

Contact Info

Product

Resources

About