Open AccessEffect of Acid Contamination on the Geotechnical Properties of Cohesive Soils from Oke-Ejigbo area of Abeokuta, South-western Nigeria
Author(s) -
Adebola A. Adekunle,
O. Omobolaji,
U.I. Isaac,
A.T. Akinbami
Publication year - 2021
Publication title -
journal of applied science and environmental management
Language(s) - English
Resource type - Journals
eISSN - 2659-1499
pISSN - 2659-1502
DOI - 10.4314/jasem.v25i6.9
Subject(s) - contamination , soil water , environmental science , geotechnical engineering , compressive strength , soil contamination , pollutant , water content , bearing capacity , soil science , geology , chemistry , materials science , composite material , ecology , organic chemistry , biology
Environmental degradation is a threat to the ecosystem and natural resources. The research investigated the effects of hydrochloric acid contamination on the geotechnical properties of cohesive soils obtained from Oke-Ejigbo area of Abeokuta, South-western Nigeria. The materials used are hydrochloric acid as contaminant, red clay (RCA) and white clay (WCA) soils respectively. The results of optimum moisture content, maximum dry densities, California bearing ratio and unconfined compressive strength of RCA and WCA subjected to 60 days acidic contamination period are (14.88 and 16.21%), (18.30 and 17.93 kN/m3), (5.93 and 11.29%), (89.81 and 87.54 kN/m3) respectively. The acid-soil interaction reduces the geotechnical properties of the cohesive soil samples with an increase in the period of contamination. Furthermore, the contamination period directly affects the strength of the soils due to the change in soil plasticity and structure caused by the pollutant.