ABSTRACT
A residual clay soil was collected at Bako village along Gwagwalada-Garki road in Federal Capital Territory of Nigeria using the method of disturbed sampling. The clay was characterized and microstructural tests including X-ray Diffraction (XRD) test, Scanning Electron Microscopy (SEM) test and Electron Dispersive Spectroscopy (EDS) tests were also conducted on the clay soil. The clay was then compacted at Standard Proctor energy level to obtain the Maximum Dry Density (MDD) and Optimum Moisture Content (OMC). Unconfined Compressive Strength (UCS) tests were then conducted on the natural clay and clay mixed with 0, 2, 4 and 6% cement which are in turn admixed with 0, 3, 6, 9, 12 and 15% Volcanic Ash (VA) each. The clay also consists majorly of montmorillonite, ankerite, calcium silicide, anorthite, anothoclase and orthoclase minerals. The SEM test revealed flaky nature of the clay with pore spaces. The natural clay specimen compacted at standard proctor energy level mixed with varied composition of VA showed 2.5 times increase in UCS compared to the value of the natural clay. For clay made of 6% cement with varied percentage VA, the UCS increased by 80% compared with UCS of specimen containing 6% cement-0% VA. The optimal VA value for maximum UCS values lies between 6% and 9% VA.
ABSTRACT
This study was conducted to find out the social factors affecting effective teaching and learning in senior sec...
ABSTRACT
Revenue generation in the public sector is very important because of demand for economic devel...
ABSTRACT
The current wave of globalization and technological revolution has tremendous effect on the way people interact, carry out busin...
Background to the Study
An infection of any region of the urinary system is referred to as a urinary tr...
ABSTRACT
The use of medicinal plants to prevent or cure common diseases in Nigeria has increased over the years. These plants can be a so...
ABSTRACT
The research investigated the causes and effec...
Background Information
The emergence of information and Communication Technology (ICT) has given a new...
ABSTRACT
This project (DESIGN AND DEVELOPMENT OF A FITNESS APP) is going to be a fitness app that allows user to get fit either at the gy...
ABSTRACT
This study examined the problems of Solid Waste Management in Nigeria. To achieve this purpose...
ABSTRACT
This study undertook an "Assessment of the Role performance of Secondary School Principals in Benin Metropolis". Eight...