1. EFFECTS OF AGGREGATE SIZES ON THE CONCRETE STRENGTH
| 63 | Student Researchers | Quantitative |
It is well recognized that coarse aggregate plays an important role in concrete. Coarse aggregate typically occupies over one-third of the volume of concrete, and research indicates that changes in coarse aggregate can change the strength and fracture properties of concrete. To predict the behavior of concrete under general loading requires an understanding of the effects of aggregate type, aggregate size, and aggregate content. This understanding can only be gained through extensive testing...
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2. COMPARATIVE ANALYSIS OF THE STRENGTH OF CONCRETE MADE FROM VARIOUS AGGREGATE
| 63 | Student Researchers | Qualitative |
EXCERPT FROM THE STUDY
Characteristics of soil-cement blocks using highly sandy laterite mixtures were examined. The compressive, flexural and direct tensile strength of soil-cement blocks are directly proportional to the concrete aggregates, while the IRA is inversely proportional to the concrete aggregates. The saturated moisture content (tNigerial water absorption of the soil-cement blocks) does not depend much on concrete aggregates. Rate of moisture absorption...
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3. CAUSES AND EFFECTS OF DESIGN VARIATION IN ROAD CONSTRUCTION PROJECTS
| 63 | Student Researchers | Quantitative |
ABSTRACT
Variation is one of the most severe problems in the construction industry. This variation occurs in every construction project and the magnitude of these variations varies considerably from project to project. As such, the client had to spend more than what was initially estimated in most cases, sometimes, disputes and unnecessary delays occur due to variations. This study focused to investigate causes and effects of design variation in roa...
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4. A CRITICAL STRUCTURAL DETAILING OF A SINGLE STOREY RESIDENTIAL BUILDING WITH RETAINING WALL
| 63 | Student Researchers | Quantitative |
CHAPTER ONE
In the building business, there is only one method by which information is sent to a contractor. Designers in the engineering sector communicate to each order by means of drawing and specification. An engineering drawing, which is often carried out by architects in accordance with the design that is provided by a structural engineer, is required before any construction work can be carried out in an appropriate manner. In...
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5. EVALUATION ON THE IMPACT OF AGGREGATE SIZES ON CONCRETE STRENGTH
| 63 | Student Researchers | Quantitative |
INTRODUCTION
It is common knowledge that coarse aggregate is crucial to the success of concrete. According to studies, changes in coarse aggregate can alter the strength and fracture qualities of concrete. Coarse aggregate generally makes up over one-third of the volume of concrete. Understanding the impacts of aggregate type, aggregate size, and aggregate content is necessary to anticipate the behavior of concrete under general loads. It is only after lengthy testi...
| APA | 1-5 Chapters | 50 Pages |
6. REVIEW ON THE SIGNIFICANCE ENHANCING FIRE SAFETY IN HOSTEL DESIGNS
| 63 | Educators | Qualitative |
BACKGROUND OF STUDY
Housing is one of man's most essential requirements. Since the Paleolithic Age, humanity has been fascinated with the supply of high-quality housing. According to Afolayan (1981), a decent lodging should provide physical shelter, usable living space, and self-fulfillment. As a result, providing appropriate shelter, space, and amenities for the general well-being of the occupant involves providing adequate shelter, space,...
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7. AN INVESTIGATION INTO THE CHALLENGES OF POLLUTION AND AN ENGINEERING METHODS TO THE MANAGEMENT AND CONTROL OF INDUSTRIAL EFFLUENTS IN OTTA, NIGERIA
| 63 | Student Researchers |
ABSTRACT
This study examined the effects of effluent discharges from various point-loads on a purposively selected receiving river, the self-recovery ability of the river and the treatability of both the discharges and the receiving stream in a heavily industrialized community.
The work involved field survey of industries producing and discharging effluents in the study area (Ado Odo/ Otta industrial zone of Ogun State, Nigeria); determination of the efflu...
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8. THE EFFECT OF EFFECTIVE CONTRACT PLANNING ON CONTRACTORS PROFIT
| 63 | Student Researchers |
ABSTRACT
Effective contract planning in construction projects is not only crucial to attainment of project objectives but necessary if project failure is to be avoided, losses minimised and profitability enhanced by the Contractor. While research has shown general low usage of formal and effective contract planning in the UAE, Hong Kong, Kuwait, UK and Ghana, the practices used by Nigerian Construction Contractors to manage risk are not known. Available research...
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9. THE IMPACT OF EFFECTIVE CONTRACT PLANNING ON CONTRACTORS PROFIT (A CASE STUDY OF JULIUS BERGER NIGERIA PLC, UYO)
| 63 | Student Researchers |
ABSTRACT
Effective contract planning in construction projects is not only crucial to attainment ofproject objectives but necessary if project failure is to be avoided, losses minimisedand profitability enhanced by the Contractor. While research has shown general low usage of formal and effective contract planning in the UAE, Hong Kong, Kuwait, UKand Ghana, the practices used by Nigerian Construction Contractors to manage riskare not known. Available research in Nige...
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10. COST EVALUATION OF ROAD TRAFFIC ACCIDENT IN NIGERIA USING HUMAN CAPITAL APPROACH
| 63 | Student Researchers |
ABSTRACT
Nigeria experiences the highest rate of road traffic accidents resulting in fatalities and various levels of injuries. On Abuja-Lokoja road, traffic accident takes the lion’s share of the risk having highest number of vehicular accidents with corresponding fatalities and injuries which has a great impact on cost and the socio-economic development of the society. It is therefore necessary to gauge the monetary value of these losses in order to highligh...
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11. REVIEW ON THE SIGNIFICANCE ENHANCING FIRE SAFETY IN HOSTEL DESIGNS.
| 63 | Student Researchers |
ABSTRACT
Housing is one of the basic human needs, apart from food and clothing. The increasing number of postgraduate students in tertiary institutions, Nnamdi Azikiwe University in particular, has raised accommodation problems. Establishment of off-campus private hostels was initially perceived as a solution but property owners have taken advantage of the high demand to increase rents. Students and parents are reeling under...
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12. EFFECTIVENESS OF QUALITY ASSURANCE STRATEGIES IN PROJECT EXECUTION (A STUDY OF ROAD CONSTRUCTION PROJECTS IN OWERRI)
| 63 | Student Researchers |
Abstract
This research was conducted to determine if quality assurance and its strategies are effective for successful project execution in the construction industries. Data was obtained from both primary and secondary sources. The primary sources consisted of questionnaires and observations while the secondary data consisted of texts, websites and journals. Percentages were used to analyze data and analysis of variance (ANOVA) was adopted in testing hypothes...
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13. ASSESSMENT OF FACTORS AFFECTING COST PERFORMANCE CONSTRUCTION PROJECT IN NIGERIA
| 63 | Student Researchers |
Abstract
Maintaining steady cost projection on construction projects had been until recently an issue of serious concern, both to the client and project contractors. Cost deviation from initial Cost plan, had been prevalent on Construction sites. However, little or no efforts has made to curtail the phenomenon, it is against this background that this research work attempt to study the factors that are responsible, so as to identify them and proffer possible wa...
| APA | 1-5 Chapters | 50 Pages |
14. EVALUATION OF ROAD TRAFFIC ACCIDENT EFFECT ON PROPERTIES AND ECONOMY OF NIGERIA (CASE STUDY OF ABUJA-LOKOJA ROAD
| 63 | Student Researchers |
ABSTRACT
This study was carried out the evaluation of road traffic accident effect on properties and economy of Nigeria using Abuja-Lokoja road as case study. To carry out the study, four research questions were posed. The study adopted a descriptive survey design. A total of 100 responses were validated from the enrolled participants where all respondent are staff of FRSC Abuja head office. The instrument for data collection in this study was structured questio...
| APA | 1-5 Chapters | 50 Pages |
15. IMPACT OF CONSTRUCTION SKILLED LABOUR SHORTAGES ON THE COMPETITIVENESS OF BUILDING SECTOR IN NIGERIA
| 63 | Student Researchers |
ABSTRACT
Skilled workforce is critical to the socio-economic development of a country and forms the backbone of the construction industry. This study investigated the problem of construction skilled labour shortages and their impact on the competitiveness of building sector in South-East, Nigeria. The objectives were to evaluate the magnitude of skilled labour shortages, identify the root causes of skilled labour shortages, investigate the impact of...
| APA | 1-5 Chapters | 50 Pages |
16. THE IMPLICATION AND BENEFIT OF THE USE OF SOFTWARES IN BUILDING PROJECT (CASE STUDY OF SELECTED CONSTRUCTION FIRMS AND PROJECT MANAGING FIRMS)
| 63 | Student Researchers |
Abstract
Software is any set of machine-readable instruction that directs a computer processor to perform specific operations. Microsoft project software (MS Project) is one of such software that is a program developed and sold by Microsoft which is designed to assist a project manager in developing a plan, assigning resources to task tracking work progress, managing the budget ,analyzing work load schedule, upgrade information and communication sta...
| APA | 1-5 Chapters | 50 Pages |
17. STRATEGIES FOR CONTROLLING CRACKS IN RESIDENTIAL BUILDINGS
| 63 | Student Researchers |
Abstract
The study was designed to find out strategies for controlling cracks in residential building, in Niger south senatorial district. Among the specific purposes of the study were determining the availability to facilities for controlling cracks in residential building, determine the methods of detecting cracks in residential building, and determining the availability of personnel for detecting cracks in residential building and also the strategies adopted to i...
| APA | 1-5 Chapters | 50 Pages |
18. STUDY OF FACTORS AFFECTING CONSTRUCTION COST PERFORMANCE IN NIGERIAN CONSTRUCTION SITES
| 63 | Student Researchers |
Abstract
Maintaining steady cost projection on construction projects had been until recently an issue of serious concern, both to the client and project contractors. Cost deviation from initial Cost plan, had been prevalent on Construction sites. However, little or no efforts has made to curtail the phenomenon, it is against this background that this research work attempt to study the factors that are responsible, so as to identify them and proffer possible wa...
| APA | 1-5 Chapters | 50 Pages |
20. STRUCTURAL DETAILING OF A REINFORCED CONCRETE STRUCTURE - DUPLEX,
| 63 | Student Researchers |
INTRODUCTION
The work in the construction industry involves the client, the Architect, the Engineer, the quantity surveyor and the builders. A structural project is initiated by the Engineer (civil Engineer).
The process of designing begins with the enginer’s appreciation of the client’s requirements. After the specification given to the engineer by architect according to the requirement of the client, the engineer develops different structura...
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21. EFFECT OF FAULTY DESIGN AND CONSTRUCTION ON BUILDING MAINTENANCE (CASE STUDY OF AFDIN AND MOTHER CAT CONSTRUCTION COMPANIES IN KADUNA STATE)
| 63 | Student Researchers |
ABSTRACT
The study examined the effects of faulty design and construction on the maintenance of building. A survey of randomly selected samples of 20 builders and 15 architects were conducted. Questionnaires were used to collect data from Architects and Builders. The survey included 11 groups of defects and sub defects in each groups. The predominant severity effects of each defects was assessed and ranked based on the severity index as ranked by bo...
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22. USE OF FORMWORK DESIGN AND CONSTRUCTION OF HIGH BUILDING
| 63 | Student Researchers |
ABSTRACT
This research project is designed to critically assess the use of formwork design and construction of high rise building. The researcher has carried out an extensive research on how important well designed and constructed formwork could be in the construction of high rise building in Nigeria. The researcher in order to achieve this aim visited libraries, handouts, journals and distributed questionnaires, personal observations. The data obtained from questionnai...
| APA | 1-5 Chapters | 50 Pages |
23. INVESTIGATION ON THE CAUSES OF PAVEMENT FAILURE ALONG HILLVIEW OFF ESBS ROAD ENUGU
| 63 | Student Researchers |
ABSTRACT
One of the major problems facing the country is pavement failure. It is the concern of the Institute of Management and Technology (IMT) authorities to carryout a case study of pavement failure along Hillview off ESBS Road Enugu.
The investigation show that the pavement failed both structural and functionally taking into consideration.
| APA | 1-5 Chapters | 50 Pages |
24. IMPACT OF QUALITY MANAGEMENT AND SAFETY CULTURE ON CONSTRUCTION PERFORMANCE
| 63 | Student Researchers |
ABSTRACT
Construction safety culture have attracted some research attention over the years, but the way in which safety practices affect the productivity and functioning of workers requires some attention in construction projects. The purpose of this study is to determine the degree of compliance with the use of protective clothing and other safety control systems to improve the safety performance and productivity of workers in construction projects...
| APA | 1-5 Chapters | 50 Pages |
25. INVESTIGATION OF ANAEROBIC PROCESSES IN SEPTIC TANK AS A WASTEWATER TREATMENT OPTION
| 63 | Student Researchers |
BACKGROUND
The septic tank system is the most widely used onsite treatment system for domestic wastewater. In fact, most developing countries (Nigeria inclusive) lack the technology and economic power to construct and operate sewerage systems for conveyance of domestic wastewater to central sewage treatment facilities, so a greater population rely on the septic tank system for sewage treatment. It is an enclosed receptacle designed to collect wastewater, segregate...
| APA | 1-5 Chapters | 50 Pages |
26. BITUMEN STABILIZATION OF LATERITE PRETREATED WITH HEAT AS A FLEXIBLE PAVEMENT MATERIAL
| 63 | Student Researchers |
ABSTRACT
The search for an alternative to the conventional way of treating soil for use in road work, informed laterite soil sample classified as A-7-5(11) on AASHTO soil classification system, collected from a borrow pit at Shika, along Zaria-Funtua road in Kaduna State of Nigeria was pretreated with heat and stabilized with bitumen. Sample of the laterite soil subjected to heat treatment at temperatures of 37oC (room temperature), 200oC 400oC and 600oC for o...
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27. BITUMINOUS STABILIZATION OF LATERITE MODIFIED WITH LIME FOR USE AS PAVEMENT MATERIALS
| 63 | Student Researchers |
Excerpt from the Study
In an effort to improve the suitability of lateritic soil as a pavement material, the air dried samples were treated with Lime/Bitumen in stepped concentration of 0, 2, 4, 6, 8, 10 % by dry weight of the soil. The preliminary investigation conducted on the natural lateritic soil showed that the soil belongs to the CH group using the Unified Soil Classification System (ASTM, 1992) or A-7-6(14) soil group using the AASHTO soil classification sys...
| APA | 1-5 Chapters | 50 Pages |
28. THE IMPLICATION AND BENEFIT OF THE USE OF SOFTWARES IN BUILDING PROJECT CONSTRUCTION (CASE STUDY OF SELECTED CONSTRUCTION FIRMS AND PROJECT MANAGING FIRMS)
| 63 | Student Researchers |
Abstract
Software is any set of machine-readable instruction that directs a computer processor to perform specific operations. Microsoft project software (MS Project) is one of such software that is a program developed and sold by Microsoft which is designed to assist a project manager in developing a plan, assigning resources to task tracking work progress, managing the budget ,analyzing work load schedule, upgrade information and communication status in building p...
| APA | 1-5 Chapters | 50 Pages |
29. DEVELOPMENT OF PREDICTIVE MODEL FOR INTRA-CITY BUS TRAVEL TIME IN MAKURDI METROPOLIS IN NIGERIA
| 63 | Student Researchers |
ABSTRACT
The lack of information on bus travel time in Makurdi metropolis to enable trip makers plan for journeys is seen as a challenge in recent times. This study developed a multiple linear regression model for predicting bus travel time along bus routes within the metropolis and this was achieved throughmeasurement of the physical characteristics of the roadway, identification of those factors that constitute impediment to intra-city bus travel time, measurement of intra-city bu...
| APA | 1-5 Chapters | 50 Pages |
30. EFFECT OF CRUSHED COCONUT SHELL AND POLYETHYLENE TEREPHTHALATE AS PARTIAL REPLACEMENT OF COARSE AGGREGATE IN CONCRETE
| 63 | Student Researchers |
ABSTRACT
This study investigates the suitability of crushed coconut shell (CCS) and polyethylene terephthalate (PET) as partial replacement of coarse aggregate in concrete. The PET was crushed mechanically to sizes between 0-10mm while the CCS was crushed manually to sizes between 12.7-19.5mm. Various tests were carried out to ascertain the physical and engineering properties of the aggregates used in this study. Sieve analysis was carried out on all the various aggregates used in t...
| APA | 1-5 Chapters | 50 Pages |
31. DEVELOPMENT OF TRANSITIONAL PROBABILITY MATRIX MODEL FOR PAVEMENT DESIGN
| 63 | Student Researchers |
ABSTRACT
A model of transitional probability matrix for Mechanistic-Empirical Pavement Design was developed with the aim of tarnishing the traditional method obtained from the judgment of an expert panel. The model was developed using fatigue and rutting as the critical factors in pavement failure. Model performance was assessed using first order reliability method (FORM) with the concept of genetic search algorithm developed with Matrix Laboratory(MATLAB). The proposed model allowe...
| APA | 1-5 Chapters | 50 Pages |
32. EXPERIMENTAL INVESTIGATION OF THE FLEXURAL AND SHEAR CAPACITIES OF REINFORCED CONCRETE BEAMS ENHANCED WITH CARBON FIBRE REINFORCED POLYMER (CFRP) LAMINATES
| 63 | Student Researchers |
ABSTRACT
In this research, experimental research was carried out to assess the flexural and shear capacities of RC beams strengthened with different amount of carbon fibre reinforced polymer laminates at the tension face and U-strips. Twelve rectangular RC beams of cross-sectional dimension 150x150x750mm were cast and three were un-strengthened and used as reference beams and the remaining nine were strengthened with different amount of CFRP varying from single to triple layers and...
| APA | 1-5 Chapters | 50 Pages |
33. ROUTE SURVEY OF ROAD AND PAVEMENT DESIGN (REHABILITATION/MODERNIZATION) CASE STUDY: ROAD LINKING FEDERAL SECRETARIAT INDUSTRIAL CENTRE AND MASS COMMUNICATION DEPARTMENT (IMT CAMPUS III), ENUGU
| 63 | Student Researchers |
ABSTRACT
The study cover a view and a detailed explanation of the modification required to be carried out on the main access road linkage of the Campus III Industrial center from federal Secretariat to Mass Communication Department of the Institution in order to update its services and functions.
The need for easing the flow of traffic on this access road shall rise, since it s a commercial center in the institution. It is...
| APA | 1-5 Chapters | 50 Pages |
34. MODAL ANALYSIS OF VERTICALLY CURVED CONCRETE FLYOVER BRIDGES
| 63 | Student Researchers |
ABSTRACT
The effectiveness and sensitivity of vertically curved concrete flyover bridge (VCCFB) profile is presented. Modal analysis was conducted on three VCCFB models; one for a profile achieved using horizontal beams, profile achieved using slightly curved beams and a profile achieved using combination of straight and curved beams. Twelve vibration mode shapes were recorded with corresponding natural frequencies for each model. In each mode, a model with a profile using straight...
| APA | 1-5 Chapters | 50 Pages |
35. OPTIMUM DESIGN OF THE THICKNESS OF CARBON FIBRE REINFORCED POLYMER MATERIAL (CFRP) REQUIRED FOR STRENGTHENING OF DEFICIENT REINFORCED CONCRETE BEAM
| 63 | Student Researchers |
Abstract
A Carbon fiber-reinforced polymer (CFRP) has emerged as promising material for rehabilitation of existing reinforced concrete structures. However, one of the major concerns of using this material is its high cost. In this research, a classical optimization technique was employed to optimize the thickness of Carbon Fibre Reinforced Polymer material used in strengthening of shear and flexuralydeficient reinforced concrete beam. A simply supported reinforced concrete beam was...
| APA | 1-5 Chapters | 50 Pages |
36. RELIABILITY-BASED ANALYSIS OF COMPOSITE SOLID SLENDER TIMBER COLUMNS WITH ALUMINIUM LAMINATES USING SELECTED NIGERIAN TIMBER SPECIES
| 63 | Student Researchers |
ABSTRACT
Four timber species (Strombosia pustulata, Macrocarpa biquertii, Entandrophragma cylindricum and Nauclea diderichii) were laminated with aluminium sheets of varying thicknesses.Axial and flexural loads were applied to the composite columns to determine their behaviour under such loadings. Finite element analysis was carried out in Abaqus/CAE 6.10 (2010) and the reliability analysis was carried out using the First Order Reliability Analysis (FORM) in MATLAB (2007) on the lam...
| APA | 1-5 Chapters | 50 Pages |
37. PROBABILISTIC ANALYSIS OF REINFORCED CONCRETE COLUMNS SUBJECTED TO CORROSION
| 63 | Student Researchers |
ABSTRACT
This dissertation is a report of the investigation carried out on the Probabilistic analysis of reinforced concrete columns subjected to corrosion. Corrosion of reinforcement bars is one of the most significant causes of deterioration of reinforced concrete columns. The deterioration leads to a loss of serviceability, functionality and ultimately affects the structural safety. The probabilistic analysis was carried out using MATLAB. The reliability index, β, was comput...
| APA | 1-5 Chapters | 50 Pages |
38. QUALITY OF SANDCRETE HOLLOW BLOCKS IN NIGERIA
| 63 | Student Researchers |
ABSTRACT
Sandcrete hollow blocks are widely used in Plateau State, Nigeria. The quality of these blocks produced, however, differs from each manufacturer due to different methods employed in the production and the properties of the constituent materials. This research work focuses on the impact of quality control practices by manufacturers on the quality of blocks produced in the state. General survey of the entire state was conducted to determine the number of block industries in t...
| APA | 1-5 Chapters | 50 Pages |
39. RELIABILITY ASSESSMENT OF THE STRENGTH CAPACITY OF SOLID TIMBER COLUMNS IN FRP LAMINATES AND SPRAYS
| 63 | Student Researchers |
ABSTRACT
Carbon Fiber-Reinforced Polymer (CFRP) composite materials have provenvaluable properties and suitability to be used in the construction of new buildings and in upgrading theexisting ones. One of the objectives of this study is to laminate solid timber columns with varying thicknesses of CFRP laminates to check the patterns of the stresses, displacements and reactions of the solid timber columns. An analytical model for CFRP strengthened timber columnswith length of 3700mm,...
| APA | 1-5 Chapters | 50 Pages |
40. RELIABILITY BASED CALIBRATION OF PARTIAL SAFETY FACTOR ON CHARACTERISTICS STRENGTH OF STEEL REINFORCEMENT BARS
| 63 | Student Researchers |
ABSTRACT
In the calibration of partial safety factor of steel reinforcement bars conducted in this study, necessary parameters (i.e. steel diameter, area, yield strength, ultimate strength, and elongation) needed for the calibration were obtained from the steel testing laboratory, Department of Civil Engineering, Ahmadu Bello University Zaria. The test results were analyzed in accordance with Eurocode, JSCC and ISO standards with the aid of Microsoft Excel, SPSS, EasyFit and COMREL...
| APA | 1-5 Chapters | 50 Pages |
41. THE EFFECT OF PERIWINKLE SHELL ASH AND DUST ON THE COMPRESSIVE STRENGTH OF CONCRETE
| 63 | Student Researchers |
ABSTRACT
The study examined the partial replacement of Ordinary Portland Cement (OPC) with Periwinkle shell Ash (PSA) and Periwinkle Shell Dust which was obtained from burning 200kg of Periwinkle shell at 6000C and grinding 200kg with ball mill respectively. Concrete cubes were prepared from design mix with target strength of 20N/mm2 , 25N/mm2 , 30N/mm2 and 40N/mm2 and the replacement of the PSA and PSD were 0%, 5%, 10% and 20% respectively. The chemical analysis of both samples ind...
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42. THE EVALUATION OF CERAMIC WASTE AS PARTIAL REPLACEMENT OF COARSE AGGREGATE IN HOT MIX ASPHALT
| 63 | Student Researchers |
ABSTRACT The study investigates the suitability of ceramic waste aggregate (CWA) as partial replacement for coarse aggregate in asphalt concrete. In order to achieve the aim of the study, consistency tests such as sieve analysis, aggregate crushing and impact value, water absorption, particle shape (flakiness and elongation) and specific gravity were conducted for coarse aggregate and ceramic waste aggregate. Asphalt briquettes, using 100% conventional coarse aggregate (control) and variation...
| 1-5 Chapters | 50 Pages |
43. WATER TREATMENT PLANT MODEL
| 63 | Student Researchers |
ABSTRACT
The technical report of this project deals with the design of a water treatment plant model which consists of five tanks.
Water treatment plant model is made up of glass with pipe joining them together to allow movement of water from one tank to another.
6mm plain glass is used for base and 5mm plain glass is used for other component. These glasses are joined together with addition of silicon sealant gum.
Water treatment plant...
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44. AN INVESTIGATION INTO QUALITY OF AGGREGATE IN ROAD CONSTRUCTION
| 63 | Student Researchers |
ABSTRACT
The current extensive use of low quality aggregate in Nigerian road for engineering applications is of concern because they appear to be a level of ignorance surrounding their existing properties and implications. This project was conceived for the purpose of comparing the crushed aggregate and one sample each was obtained from different locations and transported to ministry of works laboratory Enugu, Enugu State. These aggregate samples were tested. It als...
| APA | 1-5 Chapters | 50 Pages |
45. INFRASTRUCTURAL RENEWAL PROGRAMME: A REMEDY TO LAGOS MEGA CITY CHALLENGES
| 63 | Student Researchers |
Abstract
This study is on infrastructural renewal programme: a remedy to Lagos mega city challenges. The total population for the study is 200 staff of regional and urban planning, Lagos. The researcher used questionnaires as the instrument for the data collection. Descriptive Survey research design was adopted for this study. A total of 133 respondents made regional coordination planners, planners, assistant planners and communications officers were used for t...
| APA | 1-5 Chapters | 50 Pages |
46. COMPARING THE STRENGTH AS BLOCKS MADE FROM CEMENT AND LATERITIC SOIL, CEMENT AND RED EARTH, LATERITE, SAND AND RED EARTH
| 63 | Student Researchers |
ABSTRACT
This case study is “comparing the strength of blocks made from: cement stabilized laterite blocks, cement stabilized red earth blocks and sand, red earth and laterite blocks and mud blocks dried in the kiln.
This project implement the following analysis
- To ...
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47. APPLICATION OF SCHEFFE’S MODEL IN COMPRESSIVE STRENGTH OPTIMISATION OF CONCRETE USING RICE HUSK ASH AS PARTIAL REPLACEMENT OF CEMENT
| 63 | Student Researchers |
ABSTRACT
This study investigates the economic application of scheffe’s model in compressive strength optimisation of rice husk ash-cement concrete. Physical properties of the aggregates such as specific gravity, bulk density and sieve analysis were determined. Specific gravities of fine and coarse aggregates were 2.64 and 2.66 respectively. The bulk densities were 1745kg/m3 and 1660kg/m3 respectively. From the sieve analysis test, the sand belonged to zone 2 and well graded wi...
| APA | 1-5 Chapters | 50 Pages |
48. ASSESSMENT OF HAND-DUG WELL WATER QUALITY IN KATCHA, NIGER STATE
| 63 | Student Researchers |
ABSTRACT
This study presents the assessment of water quality of hand-dug wells in Katcha Local Government Area of Niger State, North Central Nigeria. Twenty hand-dug well water samples were analyzed in both rainy season and dry season. Standard method of water quality measurement were used to determine the Physico-chemical and Bacteriological parameters in accordance with American public health association (APHA, 1992). Values of temperature which range from 28-290C, pH which range...
| APA | 1-5 Chapters | 50 Pages |
49. EFFECT OF CERAMIC WASTE ON GEOTECHNICAL PROPERTIES OF CEMENT STABILIZED CLAY SOIL
| 63 | Student Researchers |
ABSTRACT A clayey soil collected at Barkindo along Lamurde-Adamawa road, Numan Local Government area of Adamawa State, Nigeria, was stabilized with 0, 2, 4 and 6% cement which was admixed with 0, 10, 20, 30 and 40% ceramic waste dust (CWD) each. Index properties test and microstructural tests were conducted on the untreated clay soil while compaction tests and unconfined compressive strength tests were carried out on the untreated clay and clay soil admixed with varied composition of cement a...
| APA | 1-5 Chapters | 50 Pages |
50. EFFECT OF SALT WATER ON CONCRETE USING BIDA NATURAL STONES AS COARSE AGGREGATE
| 63 | Student Researchers |
ABSTRACT
Concrete is a combination of cement, fine and coarse aggregates and water, which are mixed in a particular proportion to arrive at a particular strength. The cement and water react together chemically to form a paste together with the aggregate particles. The mixture sets into a rock-like solid mass, which has considerable compressive strength but little resistance in tension. In this research, concrete was properly mixed using salt water at 35g/l and water only respectivel...
| APA | 1-5 Chapters | 50 Pages |
51. EFFECT OF VERTICAL RECTANGULAR OPENINGS ON THE FLEXURAL STRENGTH OF REINFORCED CONCRETE BEAM
| 63 | Student Researchers |
ABSTRACT
Effect of vertical rectangular openings on the flexural strength of reinforced concrete beam is presented. Twelve reinforced concrete beams of dimension 200m x 230mm x 700mm with different sizes of rectangular openings, 25mm x 35mm, 50mm x 60mm and 75mm x 85mm which are placed at 150 mm from the supports, were cast. After curing, these beams were tested under centre-point loading system using universal testing machine and the flexural strength were determined. The results s...
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52. IMPACT OF PUBLIC WORK NIGERIA LIMITED QUARRY ACTIVITIES ON PHYSICAL ENVIRONMENT OF VWANG DISTRICT, JOS SOUTH LOCAL GOVERNMENT AREA OF PLATEAU STATE, NIGERIA
| 63 | Student Researchers |
ABSTRACT
Construction activities at all levels depend to a large extent on quarry stone aggregate for structural and none structural-developmental activities. The environmental implication of some of these quarry industries is often not considered. This study assessed the impact of public work Nigeria Ltd quarry activities on physical environment of Vwang area, of Plateau State, Nigeria. Observational method was used to assess the environmental consequences of quarry mining on the e...
| APA | 1-5 Chapters | 50 Pages |
53. IMPROVEMENT OF BEARING CAPACITY OF LATERITIC SOIL FOR PAVEMENT SUBGRADE BY ADDITION OF ROCK FLOUR
| 63 | Student Researchers |
ABSTRACT
This study evaluated the improvement of bearing capacity of lateritic soil for pavement subgrade by addition of rock flour stabilized with 0 - 12% rock flour by dry weight of soil at incremental rate of 3% and compacted using British Standard Light (BSL), West Africa Standard (WAS) and British Standard Heavy (BSH) compactive efforts. Results show that the lateritic soil sample used for this study is classified as A-7-6 according to American Association of State Highway and...
| APA | 1-5 Chapters | 50 Pages |
54. INTERFACIAL BOND STRENGTH BEHAVIOUR OF STEEL FIBRE REINFORCED CONCRETE AND PLAIN CONCRETE SUBSTRATE
| 63 | Student Researchers |
ABSTRACT
The quality of the bonded concrete overlay depends on the bonding at the layer’s interface, which is affected by parameters such as fibre inclusion and content in new concrete, moisture condition and surface roughness of old concrete surface. This research presents an experimental study carried-out to assess the interfacial bond strength behaviour of Steel Fibre Reinforced Concrete (SFRC) and Plain Concrete (PC) substrate. The objective of this study is to quantify th...
| APA | 1-5 Chapters | 50 Pages |
55. MATHEMATICAL MODEL FORMULATION FOR SUBMERGED AQUATIC CANOPY
| 63 | Student Researchers |
ABSTRACT
The Hydraulics of flow in an open channel/waterway with flexible vegetation is studied. Vegetation along waterway has an ecological advantage; it enhances biodiversity, reduces erosion, and traps sediment. However, it has a hydraulic impact on flow. This study reviews hydrodynamics of vegetation along waterways (a concept to promote a sustainable green environment). It applies a modified one-dimensional (1-D) hydraulic model to replicate the vegetative velocity profile and...
| APA | 1-5 Chapters | 50 Pages |
56. MODELLING GROUNDWATER RECHARGE ESTIMATION USING MODIFIED SOIL MOISTURE BALANCE APPROACH IN OTUKPO BASIN
| 63 | Student Researchers |
ABSTRACT
In this study, groundwater recharge in Otukpo basin has been estimated using a modified daily soil moisture balance based on a single soil water store for a climate classified as tropical with distinct dry and wet seasons in the Middle Belt part of Nigeria. Soil properties like field capacity, permanent wilting point, readily available water, actual and potential evapotranspiration, soil moisture deficit were all estimated and deployed in the model which algorithm was devel...
| APA | 1-5 Chapters | 50 Pages |
57. CONTINUOUS QUALITY IMPROVEMENT IN A PRODUCTION LINE: NIGER DELTA UNIVERSITY TABLE WATER FACTORY
| 63 | Student Researchers |
ABSTRACT
Potable drinking water quality is a major concern, particularly as it is used for human consumption. Quality is a competitive weapon. It increases customer base, high profit margin and prevents business closure. The aim of this research is to evaluate the current performance of the water production process stability and capability for enhanced continuous improvement using a specific set of tools from the Lean Six Sigma (LSS) methodology. This research was carried on the mea...
| APA | 1-5 Chapters | 50 Pages |
58. DESIGN AND ANALYSIS OF GRID – CONNECTED PV RENEWABLE SOLAR ENERGY SYSTEM FOR IGBINEDION UNIVERSITY OKADA CROWN ESTATE OKADA
| 63 | Student Researchers |
ABSTRACT
Renewable energy has given institutions and individuals the opportunity to generate and manage their own energy consumption without much interference from power utility companies. This dissertation focused on design and analysis of Grid – connected PV Renewable Solar energy system for Igbinedion Crown estate Okada. Nigeria Solar Market study was carried out to know the available grid PV components in Nigeria, their qualities, suitability, capacities, and environmental...
| APA | 1-5 Chapters | 50 Pages |
59. EXPLORING CROSS-LAMINATED TIMBER USE FOR TEMPORARY MILITARY STRUCTURES: BALLISTIC CONSIDERATIONS
| 63 | Student Researchers |
ABSTRACT.
The design and construction of temporary military structures, built to house personnel in theater, have changed little since World War II. While lightweight, rapidly deployable, and quick to erect, these gage metal or wood frame structures provide minimal ballistic and blast protection for occupants. Cross-laminated timber (CLT) is a new building material gaining attention in the U.S. construction industry for its many unique characteristics. This prefabricated, engineered...
| APA | 1-5 Chapters | 50 Pages |
60. ORIGAMI AND TENSEGRITY: STRUCTURES AND METAMATERIALS
| 63 | Student Researchers |
ABSTRACT
In recent years, the call for multi-functional structural systems has increased substantially, with potential applications across scales: from deployable outer space structures [1], [2], to transformable multi-role robots [3], [4], and to microstructures of metamaterials [5]–[7]. To achieve various functionalities, the system has to be able to change their behavior on demand, which usually involves programmable physical states, such as geometry, and stress distributio...
| APA | 1-5 Chapters | 50 Pages |
61. OPTIMUM DESIGN OF WATER INTAKE TOWER FOR AN EARTH DAM
| 63 | Student Researchers |
ABSTRACT
Water intake towers are typically tall, hollow, reinforced concrete structures and form entrance to reservoir outlet works. It is observed that most dam intakes in Nigeria are not functional due to no way to monitor assets. In this work, the best type of tower was selected and the optimum design of the water intake tower was designed using Random Finite Element Method (RFEM) to analyses according to British standard specification (BS5059, BS8110; part 1, 2 and 3 and BS5337)...
| APA | 1-5 Chapters | 50 Pages |
62. SLOPE STABILITY EVALUATION OF NEWLY CONSTRUCTED RAILWAY EMBANKMENT ALONG LAGOS-IBADAN RAIL LINE, NIGERIA
| 63 | Student Researchers |
ABSTRACT
This research is aimed to evaluate stability of the slope of newly constructed railway embankment along Lagos-Ibadan rail line. Soils samples were collected from KM75+500, KM90+500, KM105+500 and KM116+500 at depths ranging from 0m to 5.5m and 5.5m to 10m and taken to laboratory for tests such as particle size analysis, Atterberg limits, standard Proctor and direct shear test. The slope stability assessment was done for the high filled embankments in KM75+500, KM90+500, KM1...
| APA | 1-5 Chapters | 50 Pages |
63. STABILISATION OF TROPICAL BLACK CLAY USING CALCIUM CARBIDE RESIDUE AND COCONUT SHELL ASH AS ADMIXTURE
| 63 | Student Researchers |
ABSTRACT
A Tropical Black Clay (TBC), obtained by method of disturbed sampling, at a depth of between 0.5m to 1.5m, at Gwako village, Abuja, Nigeria, was treated with 0, 2, 4, 6, 8, and 10% each of Calcium Carbide Residue (CCR) and Coconut Shell Ash (CSA). Effect of the additives was investigated with respect to compaction characteristics (Maximum Dry Density-MDD and Optimum Moisture Content-OMC) and Unconfined Compressive Strength (UCS) cured at 1, 7, 14, 28, 60 and 90 days. Result...
| APA | 1-5 Chapters | 50 Pages |
64. STABILIZATION OF CLAYEY SOIL USING CEMENT AND VOLCANIC ASH FOR SUSTAINABLE ROAD CONSTRUCTION
| 63 | Student Researchers |
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...
| APA | 1-5 Chapters | 50 Pages |
65. SUSTAINABLE USE OF CALCIUM CARBIDE RESIDUE TO ENHANCE THE STRENGTH OF CEMENT STABILIZED CLAY SOIL IN ROAD CONSTRUCTION
| 63 | Student Researchers |
ABSTRACT
Clayey soil collected along Gwagwalada – Garki road was characterized and classified as A-7-6 soil according to American Association of State Highway and Transportation Officials (AASHTO) soil classification system. The clay was treated with 0, 2, 4 and 6% cement which was admixed with 0, 3, 6, 9, 12 and 15% Calcium Carbide Residue (CCR). Unconfined Compressive Strength (UCS) test was used as evaluation criterion to measure the effect of CCR on the cement stabilized c...
| APA | 1-5 Chapters | 50 Pages |
66. EVALUATION OF INSITUTE GEOTECHNICAL PROPERTIES OF ROAD PAVEMENT LAYERS MATERIAL: A CASE STUDY OF MINNA–BIDA ROAD
| 63 | Student Researchers |
ABSTRACT
The intrinsic suitability of some lateritic soils as materials for construction of layers for flexible pavements is evaluated herein. The pavement layers assessed were the base course, sub-base and sub-grade. Laboratory results of samples from these layers show that the CBR values of the sub-grade materials met the requirement while about 40% and 70% of the locations for sub-base and base materials respectively, presented CBR values less than those specified by the local co...
| APA | 1-5 Chapters | 50 Pages |
67. EFFECTS OF PRE-QUALIFICATION CRITERIA ON PERFORMANCE OF CONTRACTORS IN KADUNA STATE, NIGERIA
| 63 | Student Researchers |
ABSTRACT
The effect of pre-qualification criteria on performance of contractors cannot be overemphasized. Problems faced in Project management can be attributed on poor prequalification criteria adopted by the public and private sectors as necessitated this study. The study aimed at evaluating the effect of pre-qualification criteria on performance of contractors in Kaduna State. The study sampled 162 supervisors and management staff of Kaduna State Ministry of Land, Works and Housi...
| APA | 1-5 Chapters | 50 Pages |
68. ASSESSMENT OF COST CONTROL TECHNIQUES ON ROAD CONSTRUCTION PROJECT DELIVERY IN FCT ABUJA, NIGERIA
| 63 | Student Researchers |
ABSTRACT
In construction industry the aim of project control is to ensure the projects finish on time, within budget and achieving other project objective. The advancement of technology in the last century has contributed to the increase in the number of complex construction projects that require proactive cost management. Cost control is an element of financial control since it supplements managerial control process in the organisation. Cost Management of road construction involves...
| APA | 1-5 Chapters | 50 Pages |
69. ASSESSMENT OF PHYSICAL AND MECHANICAL PROPERTIES OF AGGREGATES
| 63 | Student Researchers |
ABSTRACT
This study investigates the compliance of the physical and mechanical properties of granites produced in some parts of Ogun State to relevant codes and standards. The desire to carry out the study was borne by personal on – site experience that single size aggregates produced in some parts of Ogun State do not conform to grading requirements specified in relevant codes and standards. Samples of 9.5mm, 12.5mm, 19mm and 25mm aggregates...
| APA | 1-5 Chapters | 50 Pages |
70. AN ASSESSMENT OF THE EFFECTIVENESS OF COST PLANNING TOOLS AND TECHNIQUES ON CONSTRUCTION PROJECT PERFORMANCE IN NIGERIA
| 63 | Student Researchers |
BACKGROUND OF THE STUDY
It is a known fact that the Nigerian construction industry continues to occupy an important position in the nation’s economy even though it contributes less than the manufacturing or other service industries, (Aibinu and Jagboro, 2002). The contribution of the construction industry to national economic growth necessitates improved efficiency in the industry by means of cost effectiveness and timeliness, and would certainly contribute to...
| APA | 1-5 Chapters | 50 Pages |
