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Comparison between the Strength Characteristics of Pozzolan Stabilized Lateritic Soil of Coconut Shell Husk Ash and Palm Kernel Shell Husk Ash Admixtures

Author(s):




Medium: journal article
Language(s): English
Published in: American Research Journal of Civil and Structural Engineering, , n. 1, v. 1
Page(s): 36-46
DOI: 10.21694/2577-5944.17004
Abstract: The discharge of agricultural, industrial and domestic wastes is at increasing rate on daily basis in the developing countries. These wastes are generated in enormous quantity and improper waste management systems and lack of proper monitoring system leads to these wastes constituting nuisance to the environment. Converting these wastes to useful and economical additives for construction work is the aim of this study. This study analyses the results of the comparison between the strength characteristics of pozzolan stabilized lateritic soil using coconut shell husk ash (CSHA) and palm kernel shell husk ash (PKSHA) as admixtures. OMC, MDD, Particle Size Distribution, California Bearing Ratio, Triaxial Test, Unconfined Compressive Strength and Atterberg limit were investigated. The soil is a clayey soil classified as A-7-6(20) according to AASHTO and CH inorganic sandy fat clay according to Unified Classification System. CBR value of the unsoaked was greater than the soaked and it increased at different percentages of CSHA and PKSHA, at control CBR value for soaked and unsoaked at 2.5 and 5.5 penetrations were 4.0/6.0 and 3.0/6.0 KN respectively. At 10% CSHA, the CBR value improved to 13.0 KN and 9.0KN for unsoaked and soaked at 2.5mm at 5.0mm, while 10% PKSHA improved to 14.0 KN and 10 KN unsoaked and soaked at 2.5mm and 5.0mm respectively. Addition of CSHA and PKSHA increased optimum moisture content and decreased maximum dry density. UCS increased with respect to the curing days and different percentages of CSHA and PKSHA. At control, UCS was 6.43, 8.65 and 14.80 KN/m² for 0, 7 and 14days curing. It improved to 10.79, 31.82, 40.00 KN/m² at 10% CSHA and 11.38, 33.43 and 41.64 KN/m² at 10%PKSHA for 0, 7 and 14days curing respectively. PI and LL reduced and PL increased as percentages of CSHA and PKSHA increased. Coconut shell husk ash and palm kernel shell husk ash are
Copyright: © K. C. Onyelowe, O. A. Ubachukwu, I. C. Onuoha, C. Ikpa, P. Umoren
License:

This creative work has been published under the Creative Commons Attribution 4.0 International (CC-BY 4.0) license which allows copying, and redistribution as well as adaptation of the original work provided appropriate credit is given to the original author and the conditions of the license are met.
  • About this
    data sheet
  • Reference-ID
    10300874
  • Published on:
    29/07/2019
  • Last updated on:
    02/06/2021
 
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