Research Papers/Topics in Civil Engineering

Analysis of Sandcrete Blocks Production by using different Sources of Sharp Sands in some Parts of South-East Geo-Political Zones. A Case Study Enugu and Ebonyi State

ABSTRACT  This study examined the experimental analysis of sandcrete block production by using different sources of sharp sands in Enugu and Ebonyi State of South East Geo-Political Zone. As a result of the increasing cost of block production, many manufacturers and builders have resorted to using samples of sharp sand from different locations without appropriate consideration of the material constituents of the samples thereby, resulting in poor and undurable sandcrete blocks production. In...

The Effect of Silica Fume (S.F) on the Properties of Fresh and Hardened Concrete

General Introduction Concrete is a composite material consisting of aggregates enclosed in a matrix of cement paste including possible pozzolans, has two major components, cement paste and aggregates. The strength of concrete depends upon the strength of these components, their deformation properties, and the adhesion between the paste and aggregate surface [ 1 ]. In recent years, the construction industry has shown significant interest in the use of high strength concrete (HSC), in applica...

Development of Layered Elastic Analysis Procedure for Prediction of Fatigue and Rutting Strains in Cement - Stabilized Lateritic Base of Low Volume Roads

ABSTRACT It is generally known that the major causes of failure in asphalt pavement is fatigue cracking and rutting deformation, caused by excessive horizontal tensile strain at the bottom of the asphalt layer and vertical compressive strain on top of the subgrade due to repeated traffic loading. In the design of asphalt pavement, it is necessary to investigate these critical strains and design against them. This study was conducted to develop a simplified layered elastic analysis and design ...

Analysis of Orthotropic Plates in Free Vibration Regime Using Rayleigh – Ritz Method

ABSTRACT The assumed deflection shapes used in the approximate methods such asin the Rayleigh–Ritz method were normally formulated by inspection andsometimes by trial and error, until recently, when a systematic method ofconstructing such a function in the form of characteristic orthogonal polynomials(COPs) was developed in 1985. However, vibrational analyses of plates with all edges free or clamped are much more complicated. This project aims at establishing particular expressions for the ...

Comparative Analysis of the Compressive Strength of Concrete with Gravel and Crushed Burnt Bricks as Coarse Aggregates.

ABSTRACT The research was conducted to study the possibility of utilizing the waste bricks abundantly available in most parts of Gwer-West Local Government Area of Benue State, particularly Naka, the Local Government capital, as coarse aggregates in structural concrete. Trial mixes were prepared using the crushed burnt bricks known also as brick bats as coarse aggregates only, mixture of crushed bricks and river washed gravel as well as using river washed gravel from River Benue only at varyi...

Safety Analysis of Structural Foundations Built on Abandoned Solid Waste Sites

ABSTRACT This study adopted experimental design to investigate the suitability of abandoned solid waste site soil (ASWSS) as a foundation material for building construction. Measurements of geotechnical properties of stratified random soil samples of ASWSS and adjoining natural soil (NS) at depths 1.5, 2.0, 2.5, 3.0 and 3.5 m were obtained from six test points in Kaduna, Nigeria. The soil samples were subjected to sieve analysis, Atterberg limits (liquid limit, plastic limit, plasticity index...

Optimization and Modelling of Rice Husk Ash-Clay Soil Stabilization

ABSTRACT The over dependent on the utilization of industrially manufactured soil improving additives (cement, lime etc), have dept the cost of such stabilized soils financially high. The hitherto have continued to deter the underdeveloped and poor nations of the world from providing accessible pavement to their rural dwellers who constitute the higher percentage of their population and are mostly, agriculturally dependent. A number of researchers have studied the physical and chemical propert...

Appraisal of Construction Management Practice in Nigeria

ABSTRACT Construction industry has complexity in it nature because it contains large number of parties such as clients, consultants and contractors. The factors that influence construction management practice differ from country to country, due to prevailing conditions. The objective of this project is to identify factors that influence construction management practice in Nigeria construction industry and elicit perceptions/ranking of the severity using relative importance index of the variou...

Improved Second Order Solution and its Application in the Analysis of Redundant Frames

ABSTRACT The traditional methods of analysis of frames are based on first-Order Solution which has many simplifying assumptions, the chief of which includes negligence of shear and axial deformations. In its formulation, the existing second order solution neglected the contribution of shear deformation as well as the contribution of axial force in the curvature of the element. In the attempt to estimate the effect of shear deformation, A, Chugh super-imposed to the conventionals (traditional)...

Scheduling of Solid Waste Collection Routes

ABSTRACT ( . 1, Routing of solid waste collection vehicles in Nigeria poses a challenging task I because ol' attitudinal and liapliazard infi-a structural problems to contend with. 1, New decision procedures for solid waste collection problem are introduced in this study. 'The problem objective is to minimise the overall cost, which is essentially I based on tlie distance travelled by vehicle. The study proposes heuristic methods to generate a feasible solution to an extended Capacitated Chin...

The Span Optimization for Palmnut Fiber Reinforced Mortar Roofing Tiles

Certification ........................................................................................ , . Dedication ............................................................................................... Acknowledgement ........................... ... ............................................. List of Tables ........................................................................................ List of Figures ........................................................................

An Insulation Co-Ordination Procedure for Power System Equipment

ABSTRACT Generally, for existing Insulation co-ordination studies the power system has been modeled either by deterministic mathematical techniques or by statistical methods. The shortcoming of the existing conventional mathematical technique of Insulation co-ordination analysis is that it assumes that the power system dynamics is linear. This makes analysis of over voltage response of the system under transients less optimal for determining over voltage withstand of system elements. Thus, th...

Dynamics of Orthotropic Plates Using Characteristic Orthogonal Polynomial- Galerkin’s Method

ABSTRACT The assumed deflection shapes used in the approximate method such as in the Galerkin method were normally formulated by inspection and sometimes by trial and error , until recently, when a systematic method of constructing such a function in the form of Characteristic Orthogonal Polynomials (COPs) was developed in 1985. However, vibrational analysis of plates with different support and boundary conditions are much more complicated. This project used Characteristic Orthogonal Polynomi...

Effects of Addition of Carbide on Sewage Degradation

ABSTRACT The objective of this research is to investigate the effect of addition of carbide on sewage degradation. To provide answers to the above objective, some laboratory tests were conducted which include Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total coliform, pH and Suspended Solids (SS) tests. Six experimental set ups of 5liters of sewage were constructed in the laboratory under anaerobic condition. Each of the sewage contained 0g (which served as control), 1g, 2g...

Fire Risk Assessment Of Construction Companies in Nueva Ecija

Abstract Fire safety is an important consideration in many structures and spaces because of the danger and damage that it may pose. Given so, a fire risk assessment is not often conducted on construction sites or while the building is under construction. They only assess this after the construction or before they provide an occupancy permit. Thus, this study assessed the level of fire risk of construction sites in Nueva Ecija. The study included 61 respondents all over the province. The study...


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