Engineering

Research Papers/Topics in Engineering

Assessment of Post-harvest Handling Practices and Losses of Maize in Ejura-sekyeredumase Municipality

 Introduction to the background of the study: Maize (Zea mays) is the highest produced cereal crop and the most widely consumed food in Ghana with increasing production since 1965 (FAO, 2008; Morris et al., 1999). Maize is cultivated in all the ten regions of the country however the leading producing areas are mainly in the middle-southern part (Brong Ahafo, Eastern and Ashanti provinces) where 84 percent of the maize is grown, with the remaining 16 percent being grown in the northern re...

Assessing Growth Rate of Jatropha Plant (Height and Diameter) Under Different Method of Propagation in Nyankpala In Northern Region Ghana

ABSTRACTThe study was carried out at Nyankpala in the Northern region of Ghana from November 2012 to April 2013 to investigate the growth rate of Jatropha plant under two methods of propagation (seeds and cuttings) that best support the growth of the plant. Data on the survival rate, height and diameter were collected and other data were obtained through observation. Each of the plantation was divide into nine (9) plots and five plots were selected randomly for the studies. Each of the planta...

Legal Requirements For Infrastructural Development in Nigeria

There is an inherent correlation between law and pace of infrastructural development. A solid, clear and foreseeable legal construction policy regime forms the basis for infrastructural development. In any form of legal regime, the role of the government and its bureaucracy remains crucial at every stage including licensing, construction and operation of infrastructural development projects. The Corona Virus (Covid-19) pandemic has introduced new construction requirements. This research work ...

Rock Cracks and its Effects on Concrete Structures

In this paper, rocks with existing cracks and the effects on concrete structures it supports is discussed. Based on this paper, rock cracks may occur naturally when the rock gets closer to the earth surface due to erosion, through weathering processes (particularly frost wedging in mountainous areas and the diurnal heating and cooling of a rock outer layer in hot arid environments) and through tree roots. Artificially, cracks in rock may be caused by shock waves during rock blasting. The effe...

Effects Of Heterogeneity On The Petrophysical Parameters Of Sandstone Reservoirs And Volumetrics :Niger Delta

This  study  identified  and  correlated  hydrocarbon  bearing  reservoirs,  interpreted  geological  structures  and  petrophysical parameters  and  described  facies  and  environment  of  deposition  using  seismic  and  well  log  data.  These  were  with  a  view  to assessing  the  impact  of  reservoir  heterogeneity  on  petrophysical  parameters  and  to  determine  the  hydrocarbon  potential  of “Devo”  Field,  Niger  Delta.  Po...

Biofuel Production Potential of Anacardium Occidentale (Cashew)

ABSTRACTMature and ripe cashew fruits were harvested, washed and the apples separated from the nuts. The apples were crushed and the juice extracted, sieved and treated with potassium metabisulphite, to check the activities of undesireable microorganisms, before fermentation. A 3-spatula full of true wine yeast, Saccharomyces cerevisiae var. ellipsoideus, was rehydrated and inoculated into a 2.5-liter part of the juice and allowed for 5 days in a room temperature of 32.50C to ferment. A...

The Engineering Study on the Use of Crushed Stone Aggregate and Crusher Dust Mixes in Flexible Pavements of Karachi-Hyderabad Motorway, Sindh, Pakistan

The development of the country is directly related with the better road communication from mega cities to rural villages. Pakistan is a developing country and has started a grand network of highways, superhighways and motorways in all four provinces along with Kashmir and Northern and northwestern regions bordering china and Afghanistan. Highway Flexible pavements are the most commonly used form of pavements and have four component layers namely Sub-grade, Sub-base and base and surface co...

Engineering Properties of Nagar Parkar Plutonic & Volcanic Rocks as a Construction Aggregates, District Tharparkar, Sindh Province, Pakistan

AbstractThe purpose of this paper is to study the important engineering properties of the volcanic rockspresent with the Nagar Parkar Granites located from Sindh University Campus Jamshoro 5 h 44min (355.3 km) via Hyderabad-Badin Road and 5 h 57 min (323.5 km) via Naukot-Mithi Roadand Islamkot, the rocks look suitable for pavement and concrete aggregates. Numbers of standardtests were conducted. Which included; Specific Gravity, Gradation, Soundness, Particle shapeand Surface Texture Absorpti...

Application of Small Scale Wind Turbine for Distributed Electricity Supply and Irrigation Farming A Case Study of Opanda Farm Settlement in Enugu State, Nigeria

Mechanised agriculture has the potential to supply Nigeria with the export needs, it requires to diversify and close its GDP gap. This potential can be actualised if the rural agricultural farmers adopted the use of mechanised irrigation farming techniques. The wind is widespread in Nigeria and wind-powered irrigation system is a clean and decentralised alternative for providing rural communities with electricity for meeting domestic and irrigation farming power needs in a sustainable way...

Correlation and Regression as applied in Green Concrete Research

Correlation and regression were used as statistical tools to analyse the mechanical and durability properties of green concrete. The use of these analytical tools showed that the degree of relationship that exists between a green concrete property (for example compressive strength or water absorption or resistance to sulphate attack) and percentage replacement of cement with a civil engineering material can be established using correlation; the nature and extent of the relations...

Behaviour of Coconut Shell Aggregate (CSA) Concrete at Elevated Temperature

This paper attempts to study the mechanicalbehaviour of coconut shell aggregate (CSA) concretesubjected to elevated temperatures when coconut shell (CS)is used to replace coarse aggregate at 0, 10, 20 and 40% inconcrete. The coconut shell used was obtained by breakingthe shells into smaller sizes of less than 20mm after thefibres were removed. In order to produce control concretesamples with a minimum compressive strength of 15N/mm2at 28 days curing age, mix ratio of 1:2:4 and water-cementrat...

Mechanical Properties of Particleboard Made from Mahogany Leaves Using Gum Arabic as Binder

This paper presents the findings of an investigation into the use of mahogany leaves particles for the production of gumArabic bonded particleboards. Fresh mahogany leaves, air-dried to a target moisture content of 10% were crushed to anaverage particle size of 2mm. Mix ratios of 2:1, 2.5:1, 3:1, and 3.5:1 of gum Arabic to the crushed mahogany leaves byweight of the mahogany leaves were produced respectively. Twenty four (24) particleboards of sizes 200mm length,50mm width, and 6mm thick were...

Performance of Concrete Made with Coconut Shell Ash (CSA) as an Admixture in Acidic Environment

This paper presents the findings of an investigation on the use of coconut shell ash (CSA) as admixture in concrete and its effect on durability performance. The CSA used was obtained by controlled burning of coconut shell in an incinerator to a temperature of 600–650ºC for 3 hours, air cooled, sieved through 75μm sieve and characterized by using X-ray Fluorescence (XRF) analytical method. The compressive and splitting tensile strengths of concrete were investigated at varying CSA additio...

Effect of Coconut Shell Ash (CSA) as an Amixture on the Properties of Cement Paste and Concrete

This paper presents the findings of an investigation on coconut shell ash (CSA) as admixture in cement paste and concrete. The CSA used was obtained by controlled burning of coconut shell in an incinerator to a temperature of between 600–650ºC for 3 hours, air cooled, sieved through 75μm sieve and characterized based on its oxides composition determined using X-ray Fluorescence (XRF) analytical method. The effects of CSA on cement paste were investigated with addition of 0, 2, 4, 6, 8 and...

Use of Correlation and Regression Analyses as Statistical Tools in Green Concrete Research

Correlation and regression in this paper were employed as analytical tools to study the degree of relationship as well asthe nature and strength of the relationship between green concrete properties and percentage replacement of cementwith civil engineering materials. Pearson product-moment method and Spearman’s correlation coefficient wereextensively used to show how correlation analysis can be practically applied in green concrete research. Least squareregression line method for both line...


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