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.
EXCERPT FROM THE STUDY
People are constantly surrounded by culture (often invisible) that forms the background of their...
ABSTRACT
This research examined the effect of motivation in meeting customer’s satisfaction in the banking sector....
ABSTRACT
In this work we analysed the use of instructional materials for effective teaching and learnin...
ABSTRACT
This research work is poised to look into the Impact of Effective Unionism on the Determinatio...
Abstract: The effectiveness of blended learning approaches in technical education is essent...
ABSTARCT
This study was carried out to examine the Uses Of The Internet Facilities By Librar...
Background to the study
Crime is defined as any conduct that is against the law and can result in punis...
ABSTRACT
Evaluation is a prelude to strategic action. Strategies once identified must definitely be evaluated, so as to...
BACKGROUND OF STUDY
Virtually all&nbs...
STATEMENT OF THE PROBLEM
Spouses usually work had toward handling these differences and difficulties bu...