Research Papers/Topics in Civil Engineering

Classification of ultra-high performance concrete (UHPC)

Ultra-high performance concrete (UHPC) been an advanced concrete introduced as reactive powder concrete (RPC) over twenty years ago, is now being employed for use in the construction industry of some developed countries like China, Germany and United States of America. Its excellent properties in structural performance and durability make it the civil engineering material that will reshape the future of the construction industry in terms of structural performance; and this paper aims at helpi...

Statistical Analysis of Vibration Signals for Condition Monitoring of Defects in Exhaust Fan Bearing

ABSTRACTIdentification of exhaust fan bearing defects has its root foundations in the analysis of frequency modulation and sensing using mostly online techniques.Centrifugal fans are the most commonly used fans in the industry today. They are preferred to axles because they are cheaper and constructed with simplicity. They are used in wind systems in vehicles and buildings and also in delivering gas or minerals. They are suitable for industrial and air pollution processes and systems.Fans pla...

Developing Regression Based Model to Predict Degree of Compaction Value of Fine Aggregates Soil Parameters

ABSTRACTDegree of compaction (R %) value is an indicator in strength of earthwork construction. In the design of irrigation earthwork construction, degree of compaction value of compaction characteristics is often used, but laboratory test is time consuming and laborious. Fine aggregate classification and compaction characteristics are routinely determined for in-situ and borrow area (reservation area) soils used in the irrigation earthwork constructions. Developing regression based model to ...

Evaluation Of Sustainable Concrete Production And Construction Cost Implication In Nigeria

Abstract Sustainable concrete provides a considerable solution to the increasing cost of conventional concrete production in the world. Though, it is generally described as cheap, however it’s design and cost implications for low income communities needs to be evaluated. Hence, this paper evaluates the production of sustainable concrete and its cost implication in Nigeria. Experimental design of high strength concrete made with steel fibre and bamboo fibre as reinforcement having a ta...

Experimental And Analytical Investigation Of Soil Cutting

INTRODUCTIONThe objective of this work is first to determine experimentally the horizontal and vertical force components of the operative forces during soil cutting. Since previous work in soil cutting had been empirical and involved curve fitting techniques therefore the second objective is to predict these horizontal and vertical force components. In order to achieve these objectives a special apparatus was designed and fabricated for experimentation. It comprises the soil bin, the hor...

Simulation Studies of Shear Stresses in Reinforced and NonReinforced Concrete Structures

Abstract A simulation study of the effect of shear stresses in non-reinforced and reinforced structures was carried in this work. Using the Finite Element Method and equations of elasticity, columns and concrete deck of a simple storey structure were subjected to plane strain conditions. The results showed that proper reinforcement causes stresses to be directed into the reinforcements with the resultant shear stresses in the steel reinforcements far below the yield stresses of the ste...

Postgraduate Experience: Report Submitted to the Council for the Regulation of Engineering in Nigeria (COREN)

This report is in four sectionsResearch Work & Research Assistantship at Imperial College of Science, Medicine & Technology, LondonTeaching and Administrative Experience in University of IbadanTeaching and Administrative Experience outside University of IbadanMajor Conferences/Workshop attended

EFFECTS OF CASSAVA JUICE ON CORROSION OF MILD AND HIGH YIELD STEEL BARS IN CONCRETE STRUCTURES

ABSTRACTNigeria is the highest producer of cassava in the world and cassava juice is rich in hydrocyanic acid, a by-product from the extraction process.

Assessment of Household Energy Utilization in Ibadan, Southwestern Nigeria

ABSTRACTThe critical energy situation in Nigeria suggests the need to study energy and exergy utilization in households, with the aim of pinpointing areas of waste and suggesting alternative measures for effective and efficient utilization of scarce resource.

COMPUTER SIMULATION OF AIR-CONDlTIONlNG SYSTEM DESIGN AND DUCTING ANALYSIS FOR PROFESSIONALS AND ENGINEERING STUDENTS

Air-conditioning system design and ducting analysis has over the years been an aspect of Engineering, which even though has developed greatly, yet it brings about very tedious tasks of analysis, low level of accuracy, and a lot of time input in carrying out its analysis manually. This work makes provision for the use of a software package, designed for ducting analysis. It has tile capability of handling analysis for buildings having as much as nine (9) floors, with each floor having up t...

Fractal Characterization and [so-mapping of Parameter Plane of Harmonically Excited Pendulum

This study utilized fractal disk dimension characterization to investigate the system response of a nonlinear, harmonically driven pendulum of mass, m (or weight. W) and length I over a well-defined parameter plane of excitation amplitude versus damping factor. The system response was simulated at three drive ffequencies (symbol,*) of 1/3, 2/3 and 313. A Runge-Kutta fourth order algorithm, coded in FORTRAN programming language was used to simulate the System response over a 101...

Effects of blast furnace slag on chloride permeability of concrete cured at elevated temperatures

ABSTRACTConcrete made from ordinary Portland cement continues to be used as the main construction materials because of its durability and strength characteristics in service life. But the contrary becomes the case when such concrete is exposed to aggressive environment created by the prevalence of chloride ions that are common in marine/coastal environment characterized by temperature extremes, that is peculiar to Nigeria. Hot marine and coastal environment, constitute an aggressive environme...

Environmental Benefits of the Structural Use of Pulverised Bone in the Production of Foamed Aerated Concrete

AbstractDisposal of wastes resulting from myriads of human activities continues to be a problem especially in developing nations, where effective and efficient wastes disposal system is lacking. This paper presents the result of the study conducted to investigate the environmental benefits of using pulverized bone - obtained from bones generated as waste from abattoirs and slaughter slabs - in the production of structural foamed aerated concrete. Some of the properties investigated into are c...

Low-Cost Construction through the Use of Pulverized Bone Foamed Aerated Concrete (PB-FAC)

AbstractProvision of affordable housing especially for low-income earners, which forms the majority of the population, continues to be elusive in the nations of world. The major reason given for this is the high cost of building and construction materials. Concrete and concrete products constitute the major building construction materials. However, cement which is the main binder in concrete production has been identified as the major contributor to increasing high cost of construction. This ...

28-Day Strength Predicting Model for Foamed Aerated Concrete Containing Pulverized Bone as a Partial Replacement of Cement

Abstract: This paper presents the results of a mathematical model developed for predicting the 28-day compressive strength of foamed aerated concrete containing pulverised bone as partial replacement of cement for the purpose of quality controls. Strength-porosity relation was used as a basis for the development of the model, and the Bisection Methods of Numerical analysis was used to evaluate the inherent constants. For all the percentages of cement replacement with pulverised bone, the expe...


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