63 | Student Researchers |
ABSTRACT
This study was intended to examine effect of quarry dust on the engineering properties of lateritic soils. This study was guided by the following objectives; to investigate the natural engineering properties of lateritic soil samples, to study the effort of the lateritic soil on the quarry dust, to determine the feasibility of using quarry dust as latarite soil stabilize and to determine the optimum improvement quantity and proportion...
Available | 1-5 Chapters | 50 Pages |
63 | Student Researchers | Quantitative |
ABSTRACT
This study was carried out to evaluate the impact of construction industry in the economic development of Nigeria (A case study of Imo State). Specifically, the study aims to find out how the construction industry contrinbute to the economic development of Nigeria, examine the impact of construction industry in the economic development of Nigeria and assess the role of Nigerian government in the growth of constructio...
Available | 1-5 Chapters | 50 Pages |
63 | Student Researchers | Quantitative |
CHAPTER ONE
INTRODUCTION
Background of the study
It is general knowledge that construction project owners have become more and more demanding, continuously changing their project’s design. Responding to market demands, they request ch...
Available | 1-5 Chapters | 50 Pages |
63 | Student Researchers | Quantitative |
ABSTRACT
This study was carried out to evaluate the level of compliance to health and safety management system by construction firms in Owerri imo state. Specifically, the study aims to assess the level of compliance to health and safety management system by construction firms in Owerri imo state, examine the benefits of the compliance to the OSH Management System by construction firms in Owerri Imo State and Determine the challenges of...
Available | 1-5 Chapters | 50 Pages |
63 | Student Researchers | Quantitative |
ABSTRACT
This study was carried out to examine factors influencing the implementation of safety management system for construction sites in Owerri. A case study of Owerri municipal Imo State. Specifically, the study aims to assess the extent at which safety management system is been implemented on construction site in Owerri, find out factors influencing the implementation of safety management system for construction sites in Owerri and iexamine th...
Available | 1-5 Chapters | 50 Pages |
63 | Student Researchers | Quantitative |
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, B...
Available | 1-5 Chapters | 50 Pages |
63 | Student Researchers |
Background of the study
Safety, communication, and collaboration are critical components of project management in the oil and gas sector due to the high-risk nature of construction activities and the complex interdependencies among project stakeholders.
According to research by Love et al. (2016), safety remains a paramount concern in the oil and gas industry, with construction projects often involving hazardous environments and activities...
Available | 1-5 Chapters | 50 Pages |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 | 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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |