Mechanical behavior, compressibility, and microstructural analysis of problematic soil through a green soil stabilization approach
Researchers have explored various materials and methods to improve the strength and stabilization of peat soil for construction. Deep peat soil's significant compressibility, low bearing capacity, and high creep potential present major challenges in geotechnical engineering. In this paper, the...
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2025
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| author | Azam F.A.A. Che Omar R. Roslan R. Baharudin I.N.Z. Razman M.Z. |
| author2 | 57194194809 |
| author_facet | 57194194809 Azam F.A.A. Che Omar R. Roslan R. Baharudin I.N.Z. Razman M.Z. |
| author_sort | Azam F.A.A. |
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| content_provider | Universiti Tenaga Nasional |
| content_source | UNITEN Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | Researchers have explored various materials and methods to improve the strength and stabilization of peat soil for construction. Deep peat soil's significant compressibility, low bearing capacity, and high creep potential present major challenges in geotechnical engineering. In this paper, the unconfined compression strength (UCS) and oedometer testing were conducted to determine peat strength and compressibility behavior after being stabilized with a bio-cement called vege-grout, derived from fermented vegetable waste. Soil stabilized with 5 %, 10 %, 15 %, 20 %, and 25 % vege grout was cured for up to 8 weeks before undergoing UCS testing. The finding showed that, in between 4 and 6 weeks of the curing period, the UCS of the peat stabilized with vege-grout exhibiting substantial mechanical strength at all vege-grout inclusion levels. The results showed optimum strength improvements, with a 449 % increase in UCS at 15 % vege-grout after 8 weeks. At the optimal percentage, vege grout's cementitious properties bind peat particles, densify the matrix, and enhance soil strength and load-bearing capacity. The coefficient of consolidation (Cv) also improved, reducing settlement from 23.34 � 7.8 m2/year to 7.13 � 3.5 m2 per year over increasing effective stress. The significant improvement in strength and compressibility of peat after treatment with 15 % vege grout demonstrates the effectiveness of vege grout as a peat stabilizer and highlights its potential as an alternative to chemical stabilizers for foundation applications. ? 2024 |
| format | Article |
| id | my.uniten.dspace-36125 |
| institution | Universiti Tenaga Nasional |
| publishDate | 2025 |
| publisher | Elsevier B.V. |
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| spelling | my.uniten.dspace-361252025-03-03T15:41:25Z Mechanical behavior, compressibility, and microstructural analysis of problematic soil through a green soil stabilization approach Azam F.A.A. Che Omar R. Roslan R. Baharudin I.N.Z. Razman M.Z. 57194194809 57903899400 57159693200 58894330300 59452384200 Cementing (shafts) Compressive strength Creep testing Mortar Shear strength Soil cement Soil testing Behavior analysis Bio-cementation Compressibility analysis Mechanical behavior Peat soils Soil stabilization Strength testing Unconfined compression strength Unconfined compressive strength Vege-grout Compression testing Researchers have explored various materials and methods to improve the strength and stabilization of peat soil for construction. Deep peat soil's significant compressibility, low bearing capacity, and high creep potential present major challenges in geotechnical engineering. In this paper, the unconfined compression strength (UCS) and oedometer testing were conducted to determine peat strength and compressibility behavior after being stabilized with a bio-cement called vege-grout, derived from fermented vegetable waste. Soil stabilized with 5 %, 10 %, 15 %, 20 %, and 25 % vege grout was cured for up to 8 weeks before undergoing UCS testing. The finding showed that, in between 4 and 6 weeks of the curing period, the UCS of the peat stabilized with vege-grout exhibiting substantial mechanical strength at all vege-grout inclusion levels. The results showed optimum strength improvements, with a 449 % increase in UCS at 15 % vege-grout after 8 weeks. At the optimal percentage, vege grout's cementitious properties bind peat particles, densify the matrix, and enhance soil strength and load-bearing capacity. The coefficient of consolidation (Cv) also improved, reducing settlement from 23.34 � 7.8 m2/year to 7.13 � 3.5 m2 per year over increasing effective stress. The significant improvement in strength and compressibility of peat after treatment with 15 % vege grout demonstrates the effectiveness of vege grout as a peat stabilizer and highlights its potential as an alternative to chemical stabilizers for foundation applications. ? 2024 Final 2025-03-03T07:41:25Z 2025-03-03T07:41:25Z 2024 Article 10.1016/j.rineng.2024.103524 2-s2.0-85210745511 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85210745511&doi=10.1016%2fj.rineng.2024.103524&partnerID=40&md5=58b0b629064e848d4c45bd9ed3ca1977 https://irepository.uniten.edu.my/handle/123456789/36125 24 103524 All Open Access; Gold Open Access Elsevier B.V. Scopus |
| spellingShingle | Cementing (shafts) Compressive strength Creep testing Mortar Shear strength Soil cement Soil testing Behavior analysis Bio-cementation Compressibility analysis Mechanical behavior Peat soils Soil stabilization Strength testing Unconfined compression strength Unconfined compressive strength Vege-grout Compression testing Azam F.A.A. Che Omar R. Roslan R. Baharudin I.N.Z. Razman M.Z. Mechanical behavior, compressibility, and microstructural analysis of problematic soil through a green soil stabilization approach |
| title | Mechanical behavior, compressibility, and microstructural analysis of problematic soil through a green soil stabilization approach |
| title_full | Mechanical behavior, compressibility, and microstructural analysis of problematic soil through a green soil stabilization approach |
| title_fullStr | Mechanical behavior, compressibility, and microstructural analysis of problematic soil through a green soil stabilization approach |
| title_full_unstemmed | Mechanical behavior, compressibility, and microstructural analysis of problematic soil through a green soil stabilization approach |
| title_short | Mechanical behavior, compressibility, and microstructural analysis of problematic soil through a green soil stabilization approach |
| title_sort | mechanical behavior, compressibility, and microstructural analysis of problematic soil through a green soil stabilization approach |
| topic | Cementing (shafts) Compressive strength Creep testing Mortar Shear strength Soil cement Soil testing Behavior analysis Bio-cementation Compressibility analysis Mechanical behavior Peat soils Soil stabilization Strength testing Unconfined compression strength Unconfined compressive strength Vege-grout Compression testing |
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