A5046104764- Concrete and Cement Materials Research
- Geotechnical and construction materials studies
- Grouting, Rheology, and Soil Mechanics
- Soil and Unsaturated Flow
- Microbial Applications in Construction Materials
- Geotechnical Engineering and Soil Stabilization
- Innovative concrete reinforcement materials
- Catalytic Processes in Materials Science
- Groundwater and Watershed Analysis
- Groundwater and Isotope Geochemistry
- Water Quality and Pollution Assessment
- Recycling and Waste Management Techniques
- Thermochemical Biomass Conversion Processes
- Asphalt Pavement Performance Evaluation
- Clay minerals and soil interactions
Federal Polytechnic Nekede
2019-2023
Michael Okpara University of Agriculture
2021
Volume change in expansive soils is a problem encountered earth work around the world. This prominent with hydraulically bound structures or foundations subjected to prolonged moisture exposure. behavior of clayey used as subgrade, foundation, landfill, backfill materials causes undesirable structural functionality and failures. To prevent this happening, are studied for possible volume potential degree expansion. Consequently, problematic stabilized. In work, stabilization highly soil...
Artificial neural network and fuzzy logic based model soft-computing techniques were adapted in the research study for evaluation of expansive clay soil-HARHA mixture’s consistency limit, compressibility mechanical strength properties. The problematic soil was stabilized with varying proportions HARHA (stabilizing agent) which is an agricultural waste derivative from milling rice ranging 0% to 12%; utilization alkaline activated wastes encourages its recycling re-use obtain sustainable,...
Volumetric shrinkage critical state induced by desiccation of compacted earth treated and improved with Rice Husk Ash (RHA) utilized as pavement foundation has been investigated in the laboratory.The study was important to determine at what level improvement biomass material can be considered safe terms behavior soft soil construction.Rice (RH) is an agricultural waste discharged during rice production disposed on landfills.It causes land pollution places like Abakaliki Ebonyi State, Nigeria...
The valorization of biomass-based solid wastes for both geotechnical engineering purposes and energy needs has been reviewed to achieve eco-friendly, eco-efficient sustainable reengineering civil materials structures. objective this work was review the procedure developed by SWI-NaOH-OCE Model biomass through controlled direct combustion sequestration hydrogen gas needs. incineration model gave a lead emissions released during subsequent entrapment oxides carbon eventual release abundant in...
This research work investigated the effect of using fly ash as a modifier and utilizing crushed waste glasses (CWG) fillers to enhance mechanical properties Asphalt for sustainable pavement construction.The cost constructions is becoming overbearing on developing countries need develop more green methods has become very imperative.With inclusion materials like CWG, enhanced greener achieved.This experimented in under laboratory conditions order improve quality representative asphalt...
The effect of varying proportions rice husk ash (RHA) on the compaction behaviour modified soil has been investigated under laboratory conditions.Problematic soils exhibit undesirable characteristics that make them unsuitable for use as foundation materials due to their swell shrink properties.Clay dominant in montmorillonite and illite belongs such group net negative cations at surface when exposed moisture.For this reason, are a stabilization process improve mechanical properties.In...
Atterberg limits are one of the fundamental geotechnical parameters used to assess settlement and other volume change engineering soils containing clays. This paper describes index test results on expansive soil treated with rice husk ash (RHA) 5%, 10%, 15% quicklime activated (QARHA) obtained using laboratory testing procedure. The cost conventional binders in earthwork has necessitated need look for cheaper materials that serve same purpose. Also, extent environmental poisoning due use...
WASH related infections in Nigeria at large can be attributed partially to incessant and unlicensed disposal of hazardous waste unprotected sanitary landfills.However, the contaminant plume this potential point source depletes quality groundwater sources, thus rendering it unsafe for consumptive purposes.Empirically, drive towards accessing water per capita has provided a push evaluation boreholes located around site along Umuerim, Nekede, Owerri-West Local Government area Imo state,...
The geomorphological, microstructural pattern and mineralogical configuration of subsurface soils explored from 1-meter, 3-meter 7-meter depths have been studied for the purpose foundation materials suitability. Soils samples arehauled borrow sites to where they are utilized as materials. In very most cases, this exploration is doneat varying soil being an erratic geomaterial change in its important engineering characteristics with depth.This laboratory examination was necessary establish...