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Paper Title

Expansive Soil Stabilization Using Areca Nut Fiber Ash and Cement

Article Identifiers

Registration ID: IJNRD_323244

Published ID: IJNRD2604312

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Keywords

Expansive Clay Soil, Soil Stabilization, Areca Nut Fiber Ash, Pozzolanic Reaction, Differential Free Swell, Atterberg Limits, Plasticity Index, Maximum Dry Density, Optimum Moisture Content, California Bearing Ratio, Black Cotton Soil, Sustain- able Geotechnics.

Abstract

Expansive clay soils, prevalent across several regions of India, exhibit pronounced volumetric instability upon moisture fluctuation, posing significant threats to the integrity of foundations, pavements, and other civil infrastructure. This study investigates the stabilization of expansive clay collected from Allavaram, Andhra Pradesh, India, using Areca Nut Fiber Ash (ANFA) – an agricultural by-product with inherent pozzolanic properties – combined with Ordinary Portland Cement (OPC) as a composite stabilizer. Four mix proportions were investigated: an untreated control (0% ANFA, no cement added) and three treated mixes in which OPC was held constant at 2% by dry weight of soil while ANFA content was varied at 5%, 7.5%, and 10%; all stabilizer percentages are expressed by dry weight of soil. Tests covering Specific Gravity, Differential Free Swell, Atterberg Limits, Standard Proctor Compaction, and California Bearing Ratio were conducted as per IS standards. The Differential Free Swell decreased substantially from 80% for untreated soil to 21% at 10% ANFA, confirming effective suppression of expansive behavior. The Liquid Limit decreased from 70% to 57% while the Plastic Limit increased from 30.25% to 45.8%, resulting in a dramatic reduction in Plasticity Index from 39.75% to 11.2% at 10% ANFA, indicating greatly reduced shrink-swell susceptibility. The Optimum Moisture Content reached a minimum of 12.24% at 5% ANFA and the Maximum Dry Density peaked at 1.74 g/cc at the same dosage, identifying 5% ANFA as the optimum proportion for field compaction. The unsoaked CBR increased from 3.8% for untreated soil to a peak of 7.9% at 7.5% ANFA content, with soaked CBR improving from 2.1% to 5.2% at the same dosage, confirming significant improvement in subgrade load-bearing capacity under both field and adverse moisture conditions. The results establish ANFA combined with a fixed 2% OPC dosage as an effective, economical, and eco-friendly stabilization system for expansive clay soils.

How To Cite (APA)

Manoj B.C., Konatham Vyshnavi Siri Chandana, Kotipalli Phaneendra Kumar, Bora Vamsi Krishna, & Merugu Sweety Poornima Rau (April-2026). Expansive Soil Stabilization Using Areca Nut Fiber Ash and Cement. INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT, 11(4), d104-d114. https://ijnrd.org/papers/IJNRD2604312.pdf

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Other Publication Details

Paper Reg. ID: IJNRD_323244

Published Paper Id: IJNRD2604312

Research Area: Other area not in list

Author Type: Indian Author

Country: Amalapuram, Andhra Pradesh, India

Published Paper PDF: https://ijnrd.org/papers/IJNRD2604312.pdf

Published Paper URL: https://ijnrd.org/viewpaperforall?paper=IJNRD2604312

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Publication Timeline

Paper Submission
06-04-2026
Peer Review
Through Scholar9.com Platform
Paper Acceptance
12-04-2026
Paper Publication
16-04-2026

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