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Initial investigation on improving the physicomechanical properties of clayey sand using clay brick dust

Saima Nur, Umme and Kasim, Norhidayu and Wan Azahar, Wan Nur Aifa (2025) Initial investigation on improving the physicomechanical properties of clayey sand using clay brick dust. IIUM Engineering Journal, 26 (3). pp. 89-101. ISSN 1511-788X E-ISSN 2289-7860

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Abstract

Clayey sand is commonly considered unsuitable for construction due to its high compressibility, low shear strength, and susceptibility to erosion and settlement. The research focuses on enhancing the physical and mechanical properties of the soil by incorporating clay brick dust (CBD) at varying proportions of 15, 20, and 25% by weight. A comprehensive laboratory testing was conducted, including particle size distribution, Atterberg limits, moisture content, Standard Proctor compaction, and California Bearing Ratio (CBR). These tests were used to assess the physical and mechanical behaviour of both untreated and treated soils. The results indicate that the inclusion of CBD significantly improves the soil's strength, as reflected by increased CBR values. However, higher percentages of CBD lead to reductions in moisture content and maximum dry density. The study concluded that the optimum percentage of CBD mixture was found to be 20% by weight, offering the best balance between improved strength and acceptable compaction properties. This study concludes that CBD is a viable and sustainable material for stabilizing clayey sand, making it more suitable for geotechnical and construction applications

Item Type: Article (Journal)
Uncontrolled Keywords: clayey sand, Soil stabilization, Clay brick dust, Geotechnical Properties, California bearing ratio, Compaction Characteristics
Subjects: T Technology > TE Highway engineering. Roads and pavements > TE175 Highway design. Interchanges and intersections
T Technology > TE Highway engineering. Roads and pavements > TE250 Pavement and paved roads
T Technology > TH Building construction
T Technology > TH Building construction > TH880 Sustainable buildings. Sustainable construction
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Civil Engineering
Depositing User: Ir.Ts.Dr. Norhidayu Kasim
Date Deposited: 30 Oct 2025 09:32
Last Modified: 30 Oct 2025 09:32
URI: http://irep.iium.edu.my/id/eprint/123941

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