Quality and standardization of all construction materials are of paramount importance and serve as yard sticks for measurement reflecting the level of development attained by a nation. Sandcrete hollow blocks are construction materials which have gained wide acceptance and use in the construction industries because of the many characteristics prope... Continue Reading
Land is an essential non-renewable resource of mankind with a growing and disorderly use due to increased population pressure and demand for more space per inhabitant leading to scarcity especially in the urban centres. Basic to all other land data and helpful in describing it is its location which is fixed. The location helps in the coordination a... Continue Reading
The performance characteristics and calibrations of various shapes and sizes of the critical-depth, long-throated flumes have been studied. In this study, four flume models were constructed, two of which were bottom contracted, one side contracted, and the fourth a parshall flume, having side and bottom contractions. The flumes were calibrated. The... Continue Reading
This study centres around the evaluation of the expected total cost of reinforced concrete beams designed to BS 8110 (1985) when gross errors are accounted for. Beam performance functions are obtained for bending, shear and torsion. The performance function for a beam performing in combined bending and torsion is adopted from CP 110 (1972), where i... Continue Reading
The effects of inhibitors on corrosion of low carbon steel in hydrochloric acid pickling solution was investigated by weight loss and hydrogen evolution measurements using a beaker-funnelburette arrangement. Corrosion and hydrogen evolution rates were computed for steel samples immersed in hydrochloric acid pickling solutions with the addition of v... Continue Reading
The aim of the research is the modeling and implementation of an intrusion detection system (IDS) with focus on internally generated intrusions on a multi-Disciplinary campus network using Ahmadu Bello University (ABU) Zaria as a case study. A.B.U Zaria campus network is a complex network covering three campuses, 12 faculties and over a hundred Dep... Continue Reading
The research is aimed at the development of a multivariable based high-order fuzzy time series (FTS) forecast model that will be applied for forecasting handover success rate (mobility management) in the Lagos zone of Airtel Nigeria as a case study. Multivariable FTS is based on classifying data as primary (major) and secondary (minor) as against t... Continue Reading
In this work an attempt was made to dephosphorize Koton-karfe iron ore by leaching with Sulphuric (H2SO4), Hydrochloric (HCl) and Citric (C6H8O7) acids. The work involved carrying out chemical and mineralogical characterization of the ore, size/assay analysis (+355?m to -50?m) followed by leaching at different particle sizes (-355 +250 and -180 +12... Continue Reading
The effect of pre-ageing thermal conditions on the hardness, corrosion resistance and microstructural morphology of antimony modified Al-Si-Mg alloy has been studied. The thermal treatment employed were Double Thermal Ageing, T7 (DTAT) comprising of pre-ageing temperatures of 900C, 1050C and 120oC with variable pre-ageing time of 1-5 hrs respective... Continue Reading
This study was aimed at investigating the influence of Ni addition on the mechanical properties and corrosion characteristics of Al-Cu-Si alloy and the prime focus was to obtain a material that possessed good mechanical properties with adequate corrosion resistance. In this research, gravimetric and linear polarization methods were used to assess t... Continue Reading
This study investigated the wind energy potential for wind turbine development in Kumbotso village in Kano State, (Latitude 11.880 and Longitude 8.50).Ten (10) years average wind velocity data as recorded by National Aeronautic and Space Administration (NASA) USA, surface Meteorology and Solar Energy at 50m height and five (5) years average wind ve... Continue Reading
This study investigates the performance of fish in ponds for the polishing of effluent from a waste stabilization pond system. Two pilot ponds, each of dimensions 2m x 4m x 1.25m were constructed, to receive the effluent from the maturation ponds of the Ahmadu Bello University waste stabilization pond system. The performance of the ponds in terms o... Continue Reading
The Cause of Pavement Failure in Tropical countries like Nigeria and the factors responsible for best-performance asphaltic concrete surfacing are reviewed. Consequently appropriate laboratory tests consisting of both Marshall and Indirect tensile tests were conducted in order to determine the desirable optimum binder content, which maximises all t... Continue Reading
Aerial photographs at a nominal scale of 1:40,000 of Sarkin Pawa Area were acquired and interpreted to provide data on land use and land facets. Use was raade of a general soil map and a geological map. Land use was sampled by dot grids from aerial photograph, and recorded on micro-computer files. Land facet data was acquired in a similar manner. I... Continue Reading
This study evaluates the performance measures of the queueing systems emanating from the Bayero University, Kano, new campus access area as a result of the demand for transportation to its old campus. Analysis of the queueing systems reveal that transient behaviour is more appropriate in describing the system than conventional steady-state analysis... Continue Reading