Stabilization of Ula-Ubie-Ubeta Town Road Laterite Soil with Costus Lateriflorus Bagasse Fibre

South Asian Research Journal of Engineering and Technology Pub Date : 2022-04-07 DOI:10.36346/sarjet.2022.v04i02.001

Amadise S. Ogboin, C. Kennedy, Nwaobakata Chukwuemeka

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Abstract

The study evaluated the influence of Costus lateriflorus bagasse fibre on the properties of expansive soils. Laterite and clay soil samples along Ubeta-Ula-Ubie road in Ahoada West LGA of Rivers state, Nigeria were prepared and subjected to laboratory analysis for swelling potential, volume change, maximum dry density (MDD), optimum moisture content (OMC), consistency limits, California bearing ratio (CBR) and unconfined compressive strength (UCS). Preliminary analysis classified the soils as A-7- 6 on the AASHTO classification system. Swelling potential, volume change, maximum dry density (MDD), liquid limit (LL) and plasticity index (PI) of the stabilized Laterite and clay soils along Ubeta-Ula-Ubie road decreased with increasing percentage of Costus lateriflorus bagasse fibre, while optimum moisture content (OMC), plastic limit (PL) and unconfined compressive strength (UCS) increased with the addition of Costus lateriflorus bagasse fibre. Results established that increase bagasse fibre content improved the properties of the soil suitable for road construction. However, the bagasse fibre performed better in Laterite soil than clay soil, and 7.5% bagasse fibre would be appropriate for use as stabilization material in soil with similar characteristics like the Laterite and clay soil along Ubeta-Ula-Ubie road.

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红木甘蔗渣纤维对乌拉-乌比-乌比镇路红土的稳定作用

研究了红木甘蔗渣纤维对膨胀土性质的影响。在尼日利亚河流州Ahoada West LGA的Ubeta-Ula-Ubie公路沿线制备了红土和粘土样品，并对其进行了膨胀势、体积变化、最大干密度(MDD)、最佳含水量(OMC)、稠度极限、加州承载比(CBR)和无侧限抗压强度(UCS)的实验室分析。初步分析表明，该土壤在AASHTO分类系统中属于A-7 ~ 6级。Ubeta-Ula-Ubie公路稳定红土和粘土的膨胀势、体积变化、最大干密度(MDD)、液限(LL)和塑性指数(PI)随着红木甘蔗渣纤维添加量的增加而降低，而最佳含水率(OMC)、塑性极限(PL)和无侧限抗压强度(UCS)随着红木甘蔗渣纤维添加量的增加而升高。结果表明，蔗渣纤维含量的增加，改善了适合道路建设的土壤的性能。而甘蔗渣纤维在红土中的稳定性能优于粘土，7.5%的甘蔗渣纤维适用于乌比-乌拉-乌比公路沿线红土与粘土等特性相近的土体。

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South Asian Research Journal of Engineering and Technology

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