Bearing Capacity of Soft Marine Soil Stabilization with Cockel Shell Powder (CSP)
Masyitah Md Nujid1, Juliana Idrus2, Duratul Ain Tholibon3, Nor Faizah Bawadi4, Ali Akbar Firoozi5

1Masyitah Md Nujid*, Faculty, Department of Civil Engineering, University of Technology MARA, 13500 Permatang Pauh, Pulau Pinang, Malaysia.
2Juliana Idrus, Faculty, Department of Civil Engineering, University of Technology MARA, 13500 Permatang Pauh, Pulau Pinang, Malaysia.
3Duratul Ain Tholibon, Faculty, Department of Civil Engineering, Universiti Teknologi MARA, Campus Jengka, 26400 Bandar Tun Razak, Pahang, Malaysia.
4Nor Faizah Bawadi, School of Environmental Engineering, Universiti Malaysia Perlis, Kompleks Pusat Pengajian Jejawi 3, 02600 Arau, Perlis, Malaysia.
5Ali Akbar Firoozi, Department of Civil & Structural Engineering, Universiti Kebangsaan Malaysia (UKM), Bangi, Selangor, Malaysia.
Manuscript received on February 06, 2020. | Revised Manuscript received on February 10, 2020. | Manuscript published on February 30, 2020. | PP: 1490-1497 | Volume-9 Issue-3, February, 2020. | Retrieval Number: B3989129219/2020©BEIESP | DOI: 10.35940/ijeat.B3989.029320
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Abstract: The quality of the subgrade is depending on the geotechnical properties, strength and the stabilization technique adopted for problematic soil in order to increase the bearing value. In Malaysia, soft soil is a challenging due to very low strength value and low California Bearing Ratio (CBR) value as well. The soil stabilization process is conducted to increase bearing capacity of marine soil. An experimental works cover from identification of basic soil properties by index test, compaction test and CBR test. Though, the marine soils have to be treated and stabilized with available methods like using natural materials or additive agents. In this study, geotechnical characteristics of marine soil stabilized with CSP content were determined. The unsoaked treated marine soil stabilized with CSP was investigated. Four different compounds of the soil with 2.5, 5, 7.5 and 10% of CSP were mixed and added to determine the unsoaked CBR of the stabilized soil compounds. The results show the inclusion of CSP reduced the plasticity of the soil and highest dry density was decreased with an increase in the optimum water content. Moreover, by increasing the content of CSP the highest CBR value at 2.5 and 5.0 mm penetrations were achieved. The increasing percentage volume of water usage indicates the decreasing value of CBR. The results indicated that CSP contents have potential as a natural stabilizer for applications such as road sub-base material in road construction. The road sub-base will gain great strength with addition of CSP on marine soil.
Keywords: Geotechnical properties; Bearing ratio; Marine soil; Cockle Shell Powder (CSP), California Bearing Ratio (CBR)