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  Subjects -> ENGINEERING (Total: 2298 journals)
    - CHEMICAL ENGINEERING (192 journals)
    - CIVIL ENGINEERING (192 journals)
    - ELECTRICAL ENGINEERING (104 journals)
    - ENGINEERING (1209 journals)
    - ENGINEERING MECHANICS AND MATERIALS (385 journals)
    - HYDRAULIC ENGINEERING (55 journals)
    - INDUSTRIAL ENGINEERING (69 journals)
    - MECHANICAL ENGINEERING (92 journals)

CIVIL ENGINEERING (192 journals)                     

Showing 1 - 192 of 192 Journals sorted alphabetically
ACI Structural Journal     Full-text available via subscription   (Followers: 17)
Acta Polytechnica : Journal of Advanced Engineering     Open Access   (Followers: 2)
Acta Structilia : Journal for the Physical and Development Sciences     Open Access   (Followers: 2)
Advances in Civil Engineering     Open Access   (Followers: 36)
Advances in Structural Engineering     Full-text available via subscription   (Followers: 28)
Agregat     Open Access  
Ambiente Construído     Open Access   (Followers: 1)
American Journal of Civil Engineering and Architecture     Open Access   (Followers: 31)
Architectural Engineering     Open Access   (Followers: 4)
Archives of Civil and Mechanical Engineering     Full-text available via subscription   (Followers: 1)
Archives of Civil Engineering     Open Access   (Followers: 10)
Archives of Hydro-Engineering and Environmental Mechanics     Open Access   (Followers: 2)
ATBU Journal of Environmental Technology     Open Access   (Followers: 4)
Australian Journal of Structural Engineering     Full-text available via subscription   (Followers: 6)
Baltic Journal of Road and Bridge Engineering     Full-text available via subscription   (Followers: 1)
BER : Building and Construction : Full Survey     Full-text available via subscription   (Followers: 10)
BER : Building Contractors' Survey     Full-text available via subscription   (Followers: 4)
BER : Building Sub-Contractors' Survey     Full-text available via subscription   (Followers: 3)
BER : Survey of Business Conditions in Building and Construction : An Executive Summary     Full-text available via subscription   (Followers: 4)
Bioinspired Materials     Open Access   (Followers: 5)
Bridge Structures : Assessment, Design and Construction     Hybrid Journal   (Followers: 16)
Building & Management     Open Access  
Building and Environment     Hybrid Journal   (Followers: 15)
Building Women     Full-text available via subscription  
Built Environment Project and Asset Management     Hybrid Journal   (Followers: 15)
Bulletin of Pridniprovsk State Academy of Civil Engineering and Architecture     Open Access   (Followers: 6)
Canadian Journal of Civil Engineering     Hybrid Journal   (Followers: 12)
Case Studies in Engineering Failure Analysis     Open Access   (Followers: 8)
Case Studies in Nondestructive Testing and Evaluation     Open Access   (Followers: 11)
Case Studies in Structural Engineering     Open Access   (Followers: 9)
Cement and Concrete Composites     Hybrid Journal   (Followers: 17)
Challenge Journal of Concrete Research Letters     Open Access   (Followers: 2)
Challenge Journal of Structural Mechanics     Open Access   (Followers: 5)
Change Over Time     Full-text available via subscription   (Followers: 2)
Civil and Environmental Engineering     Open Access   (Followers: 7)
Civil And Environmental Engineering Reports     Open Access   (Followers: 6)
Civil and Environmental Research     Open Access   (Followers: 19)
Civil Engineering = Siviele Ingenieurswese     Full-text available via subscription   (Followers: 4)
Civil Engineering and Architecture     Open Access   (Followers: 18)
Civil Engineering and Environmental Systems     Hybrid Journal   (Followers: 3)
Civil Engineering and Technology     Open Access   (Followers: 10)
Civil Engineering Dimension     Open Access   (Followers: 8)
Civil Engineering Infrastructures Journal     Open Access  
Cohesion and Structure     Full-text available via subscription   (Followers: 2)
Composite Structures     Hybrid Journal   (Followers: 270)
Computer-aided Civil and Infrastructure Engineering     Hybrid Journal   (Followers: 11)
Computers & Structures     Hybrid Journal   (Followers: 36)
Concrete Research Letters     Open Access   (Followers: 6)
Construction Economics and Building     Open Access   (Followers: 2)
Construction Engineering     Open Access   (Followers: 9)
Construction Management and Economics     Hybrid Journal   (Followers: 22)
Construction Science     Open Access   (Followers: 4)
Constructive Approximation     Hybrid Journal  
Curved and Layered Structures     Open Access   (Followers: 2)
DFI Journal : The Journal of the Deep Foundations Institute     Hybrid Journal   (Followers: 1)
Earthquake Engineering and Structural Dynamics     Hybrid Journal   (Followers: 17)
Enfoque UTE     Open Access   (Followers: 4)
Engineering Project Organization Journal     Hybrid Journal   (Followers: 7)
Engineering Structures     Hybrid Journal   (Followers: 13)
Engineering Structures and Technologies     Hybrid Journal   (Followers: 2)
Engineering, Construction and Architectural Management     Hybrid Journal   (Followers: 14)
Environmental Geotechnics     Hybrid Journal   (Followers: 5)
European Journal of Environmental and Civil Engineering     Hybrid Journal   (Followers: 9)
Fatigue & Fracture of Engineering Materials and Structures     Hybrid Journal   (Followers: 16)
Frattura ed Integrità Strutturale : Fracture and Structural Integrity     Open Access  
Frontiers in Built Environment     Open Access  
Frontiers of Structural and Civil Engineering     Hybrid Journal   (Followers: 6)
Geomaterials     Open Access   (Followers: 4)
Geosystem Engineering     Hybrid Journal   (Followers: 1)
Geotechnik     Hybrid Journal   (Followers: 3)
Géotechnique Letters     Hybrid Journal   (Followers: 7)
GISAP : Technical Sciences, Construction and Architecture     Open Access  
HBRC Journal     Open Access   (Followers: 2)
Hormigón y Acero     Full-text available via subscription  
HVAC&R Research     Hybrid Journal  
Indonesian Journal of Urban and Environmental Technology     Open Access  
Indoor and Built Environment     Hybrid Journal   (Followers: 2)
Infrastructure Asset Management     Hybrid Journal   (Followers: 2)
Infrastructures     Open Access  
Ingenio Magno     Open Access   (Followers: 1)
Insight - Non-Destructive Testing and Condition Monitoring     Full-text available via subscription   (Followers: 22)
International Journal for Service Learning in Engineering     Open Access  
International Journal of 3-D Information Modeling     Full-text available via subscription   (Followers: 3)
International Journal of Advanced Structural Engineering     Open Access   (Followers: 16)
International Journal of Civil, Mechanical and Energy Science     Open Access   (Followers: 1)
International Journal of Concrete Structures and Materials     Open Access   (Followers: 14)
International Journal of Condition Monitoring     Full-text available via subscription   (Followers: 2)
International Journal of Construction Engineering and Management     Open Access   (Followers: 9)
International Journal of Geo-Engineering     Open Access   (Followers: 3)
International Journal of Geosynthetics and Ground Engineering     Full-text available via subscription   (Followers: 4)
International Journal of Masonry Research and Innovation     Hybrid Journal   (Followers: 1)
International Journal of Pavement Research and Technology     Open Access   (Followers: 6)
International Journal of Protective Structures     Hybrid Journal   (Followers: 6)
International Journal of Steel Structures     Hybrid Journal   (Followers: 2)
International Journal of Structural Engineering     Hybrid Journal   (Followers: 10)
International Journal of Structural Integrity     Hybrid Journal   (Followers: 2)
International Journal of Structural Stability and Dynamics     Hybrid Journal   (Followers: 7)
International Journal of Sustainable Built Environment     Open Access   (Followers: 4)
International Journal of Sustainable Construction Engineering and Technology     Open Access   (Followers: 8)
International Journal on Pavement Engineering & Asphalt Technology     Open Access   (Followers: 7)
International Journal Sustainable Construction & Design     Open Access  
Journal of Bridge Engineering     Full-text available via subscription   (Followers: 15)
Journal of Building Engineering     Hybrid Journal   (Followers: 1)
Journal of Building Materials and Structures     Open Access   (Followers: 2)
Journal of Building Performance Simulation     Hybrid Journal   (Followers: 6)
Journal of Civil Engineering and Construction Technology     Open Access   (Followers: 12)
Journal of Civil Engineering and Management     Hybrid Journal   (Followers: 7)
Journal of Civil Engineering and Science     Open Access   (Followers: 8)
Journal of Civil Engineering Research     Open Access   (Followers: 6)
Journal of Civil Engineering, Science and Technology     Open Access  
Journal of Civil Society     Hybrid Journal   (Followers: 4)
Journal of Civil Structural Health Monitoring     Hybrid Journal   (Followers: 4)
Journal of Composites for Construction     Full-text available via subscription   (Followers: 13)
Journal of Computing in Civil Engineering     Full-text available via subscription   (Followers: 24)
Journal of Construction Engineering     Open Access   (Followers: 7)
Journal of Construction Engineering and Management     Full-text available via subscription   (Followers: 19)
Journal of Constructional Steel Research     Hybrid Journal   (Followers: 8)
Journal of Earth Sciences and Geotechnical Engineering     Open Access   (Followers: 4)
Journal of Fluids and Structures     Hybrid Journal   (Followers: 6)
Journal of Frontiers in Construction Engineering     Open Access   (Followers: 2)
Journal of Green Building     Full-text available via subscription   (Followers: 11)
Journal of Highway and Transportation Research and Development (English Edition)     Full-text available via subscription   (Followers: 14)
Journal of Infrastructure Systems     Full-text available via subscription   (Followers: 21)
Journal of Legal Affairs and Dispute Resolution in Engineering and Construction     Full-text available via subscription   (Followers: 5)
Journal of Marine Science and Engineering     Open Access   (Followers: 1)
Journal of Materials and Engineering Structures     Open Access   (Followers: 5)
Journal of Materials in Civil Engineering     Full-text available via subscription   (Followers: 10)
Journal of Nondestructive Evaluation     Hybrid Journal   (Followers: 11)
Journal of Performance of Constructed Facilities     Full-text available via subscription   (Followers: 4)
Journal of Pipeline Systems Engineering and Practice     Full-text available via subscription   (Followers: 7)
Journal of Rehabilitation in Civil Engineering     Open Access   (Followers: 3)
Journal of Solid Waste Technology and Management     Full-text available via subscription   (Followers: 1)
Journal of Structural Engineering     Full-text available via subscription   (Followers: 40)
Journal of Structural Fire Engineering     Full-text available via subscription   (Followers: 6)
Journal of Sustainable Architecture and Civil Engineering     Open Access   (Followers: 3)
Journal of Sustainable Design and Applied Research in Innovative Engineering of the Built Environment     Open Access   (Followers: 1)
Journal of the Civil Engineering Forum     Open Access  
Journal of the South African Institution of Civil Engineering     Open Access   (Followers: 4)
Journal of Water and Environmental Nanotechnology     Open Access  
Jurnal Spektran     Open Access   (Followers: 1)
Jurnal Teknik Sipil dan Perencanaan     Open Access   (Followers: 1)
Konstruksia     Open Access  
KSCE Journal of Civil Engineering     Hybrid Journal   (Followers: 2)
Latin American Journal of Solids and Structures     Open Access   (Followers: 4)
Materiales de Construcción     Open Access  
Mathematical Modelling in Civil Engineering     Open Access   (Followers: 3)
Nondestructive Testing And Evaluation     Hybrid Journal   (Followers: 17)
npj Materials Degradation     Open Access  
Obras y Proyectos     Open Access   (Followers: 1)
Open Journal of Civil Engineering     Open Access   (Followers: 7)
Photonics and Nanostructures - Fundamentals and Applications     Hybrid Journal   (Followers: 2)
Practice Periodical on Structural Design and Construction     Full-text available via subscription   (Followers: 4)
Proceedings of the Institution of Civil Engineers - Bridge Engineering     Hybrid Journal   (Followers: 8)
Proceedings of the Institution of Civil Engineers - Civil Engineering     Hybrid Journal   (Followers: 12)
Proceedings of the Institution of Civil Engineers - Management, Procurement and Law     Hybrid Journal   (Followers: 8)
Proceedings of the Institution of Civil Engineers - Municipal Engineer     Hybrid Journal   (Followers: 3)
Proceedings of the Institution of Civil Engineers - Structures and Buildings     Hybrid Journal   (Followers: 4)
Random Structures and Algorithms     Hybrid Journal   (Followers: 5)
Research in Nondestructive Evaluation     Hybrid Journal   (Followers: 7)
Revista IBRACON de Estruturas e Materiais     Open Access   (Followers: 1)
Road Materials and Pavement Design     Hybrid Journal   (Followers: 11)
Russian Journal of Nondestructive Testing     Hybrid Journal   (Followers: 6)
Science and Engineering of Composite Materials     Hybrid Journal   (Followers: 61)
Selected Scientific Papers - Journal of Civil Engineering     Open Access   (Followers: 3)
Slovak Journal of Civil Engineering     Open Access   (Followers: 2)
Soils and foundations     Full-text available via subscription   (Followers: 5)
Steel Construction - Design and Research     Hybrid Journal   (Followers: 3)
Structural and Multidisciplinary Optimization     Hybrid Journal   (Followers: 10)
Structural Concrete     Hybrid Journal   (Followers: 11)
Structural Control and Health Monitoring     Hybrid Journal   (Followers: 9)
Structural Engineering International     Full-text available via subscription   (Followers: 12)
Structural Mechanics of Engineering Constructions and Buildings     Open Access  
Structural Safety     Hybrid Journal   (Followers: 7)
Structural Survey     Hybrid Journal  
Structure     Full-text available via subscription   (Followers: 23)
Structure and Infrastructure Engineering: Maintenance, Management, Life-Cycle Design and Performance     Hybrid Journal   (Followers: 13)
Structures     Hybrid Journal   (Followers: 1)
Study of Civil Engineering and Architecture     Open Access   (Followers: 9)
Superlattices and Microstructures     Hybrid Journal   (Followers: 2)
Surface Innovations     Hybrid Journal  
Technical Report Civil and Architectural Engineering     Open Access  
Teknik     Open Access  
The IES Journal Part A: Civil & Structural Engineering     Hybrid Journal   (Followers: 6)
The Structural Design of Tall and Special Buildings     Hybrid Journal   (Followers: 6)
Thin Films and Nanostructures     Full-text available via subscription   (Followers: 2)
Thin-Walled Structures     Hybrid Journal   (Followers: 4)
Transactions of the VŠB - Technical University of Ostrava. Construction Series     Open Access   (Followers: 1)
Transportation Geotechnics     Full-text available via subscription   (Followers: 1)
Transportation Infrastructure Geotechnology     Hybrid Journal   (Followers: 8)
Underground Space     Open Access  
Water Science & Technology     Partially Free   (Followers: 25)
Water Science and Technology : Water Supply     Partially Free   (Followers: 22)

           

Journal Cover Civil and Environmental Research
  [19 followers]  Follow
    
  This is an Open Access Journal Open Access journal
   ISSN (Print) 2224-5790 - ISSN (Online) 2225-0514
   Published by IISTE Homepage  [37 journals]
  • Journal coverpage

    • Authors: Journal Editor
      Abstract: Journal coverpage
      Issue No: Vol. 9
       
  • Review on Climate Change Adaptation and Mitigation Mechanisms in Ethiopia

    • Authors: Bekele Tona Amenu
      Abstract: Climate change is the burning issue of the current world because it is considered to be one of the most serious threats to sustainable development, with adverse impacts expected on the environment, human health, food security, economic activity, natural resources and physical infrastructure. Climate change, biodiversity and forest loss are issues inextricably interlinked and need to be addressed simultaneously. Climate is the fundamental factor that determines different stages of the organism life-cycle, such as plant germination and flowering. Causes for vulnerability of Ethiopia to climate variability and change include very high dependence on rain fed agriculture which is very sensitive to climate variability and change, under-development of water resources, low health service coverage, high population growth rate, low economic development level, low adaptive capacity, inadequate road infrastructure in drought prone areas, weak institutions, lack of awareness, etc. The objective of this paper is to examine the social, economic and environmental impacts of climate change based on their degree of existence and trends the impacts, to identify the adaptation strategies and mitigation measures and to find out the challenges to the adoption of those coping mechanisms. The effects of the changing climate are imposing impacts upon the social, economic and environmental conditions of the human beings by affecting their livelihoods causing poor living, housing, and health conditions, by reducing the number at the same time of the production of livestock. Traditional and contemporary coping mechanisms to climate variability and extreme in Ethiopia include changes in cropping and planting practices, reduction of consumption levels, collection of wild foods, use of inter-household transfers and loans, increased petty commodity production, temporary and permanent migration in search of employment, grain storage, sale of assets such as livestock and agricultural tools, mortgaging of land, credit from merchants and money lenders, use of early warning system, food appeal/aid, etc. Keywords: climate change, coping mechanism, and impacts of climate change
      Issue No: Vol. 9
       
  • The Effectiveness of Stone Bund to Maintain Soil Physical and Chemical
           Properties: The Case of Weday Watershed, East Hararge Zone, Oromia,
           Ethiopia

    • Authors: Dejene Teressa
      Abstract: The study was conducted in Weday watershed in East Hararge Zone, Oromia Region to evaluate the effectiveness of stone bund SWC measures to maintain soil physical and chemical properties. The experiment has two treatments (conserved and non- conserved farm land) and three slope classes (3-8 %, 8-13 % and 13-18%) with factorial arrangement in Randomize Complete Block Design (RCBD) replicated nine times. Results indicated that soil organic carbon (SOC), total nitrogen (TN), available phosphorus (Av.P), soil pH (H2O), Cation exchange capacity (CEC) showed significance differences with treatments (P ≤ 0.05). Conserved farm land demonstrated higher mean values of these parameters than non-conserved one. Soil textural fractions of sand, silt and clay and exchangeable potassium (ex.K) did not show significance variation with treatments. With respect to slope classes, soil textural fractions (sand, silt and clay), pH, Cation exchange capacity (CEC) organic carbon (OC), total nitrogen (TN), available phosphorus (Av.P) and exchangeable potassium (ex.) showed significant difference (P ≤ 0.05). Except the sand content all these studied soil properties’ mean values were higher in the lower slope than in the middle and upper slopes.  However, the higher sand content was recorded in soil under the upper slope class. Thus, stone bunds can reduce soil erosion problem in sloppy farm lands and yields some desirable effect on some soil physicochemical properties which in turn improve the productive capacity of the land. Keywords: Conserved, Farm land, Non-conserved, Soil chemical properties, Stone bund.
      Issue No: Vol. 9
       
  • Review on Climate Change Adaptation and Mitigation Mechanisms in Ethiopia

    • Authors: Bekele Tona Amenu
      Abstract: Climate  change  is  the  burning  issue  of  the  current  world because  it  is  considered  to  be  one  of  the  most  serious  threats  to sustainable  development,  with  adverse  impacts  expected  on  the environment,  human  health,  food  security,  economic  activity,  natural resources and physical infrastructure. Climate change, biodiversity and forest loss are issues inextricably interlinked and need to be addressed simultaneously. Climate is the fundamental factor that determines different stages of the organism life-cycle, such as plant germination and flowering. Causes for vulnerability of Ethiopia to climate variability and change include very high dependence on rain fed agriculture which is very sensitive to climate variability and change, under-development of water resources, low health service coverage, high population growth rate, low economic development level, low adaptive capacity, inadequate road infrastructure in drought prone areas, weak institutions, lack of awareness, etc. The  objective  of  this paper is  to  examine  the  social, economic and environmental impacts of climate change based on their degree of existence  and trends the impacts, to identify the adaptation strategies  and  mitigation  measures  and  to  find  out  the  challenges  to the adoption of those coping mechanisms. The effects of the changing climate are imposing impacts upon the  social,  economic  and  environmental  conditions  of  the human beings by  affecting  their  livelihoods  causing  poor  living, housing,  and health conditions, by reducing the number at the same time of the production of livestock. Traditional and contemporary coping mechanisms to climate variability and extreme in Ethiopia include changes in cropping and planting practices, reduction of consumption levels, collection of wild foods, use of inter-household transfers and loans, increased petty commodity production, temporary and permanent migration in search of employment, grain storage, sale of assets such as livestock and agricultural tools, mortgaging of land, credit from merchants and money lenders, use of early warning system, food appeal/aid, etc. Keywords: climate change, coping mechanism, and impacts of climate change
      Issue No: Vol. 9
       
  • The Problems, Opportunities and Implications of Small Scale Irrigation for
           Livelihood Improvement in Ethiopia-A Review

    • Authors: Tadesse Tolera
      Abstract: This paper has reviewed the Ethiopian small scale irrigation on the basis of its importance, problems and opportunities, future development perspectives, and its implications to livelihood. Small-scale irrigation may have a considerable potential in improving rural livelihoods through employing different mechanisms into account. In Ethiopia, today small-scale irrigation is being promoted through giving highest priority for capacity-building in the study, design, and implementation of irrigation projects because of the associated benefits with it. Accordingly, the future opportunity is also bright in the country. However, small-scale irrigation is associated with certain problems of development that range from individual household’s biased attitudes to institutional arrangements. Therefore, redesigning of institutions, especially appropriate cost recovery mechanisms which contributes to the sustainable management of the irrigation scheme is compulsory work. Keywords: Livelihood; Small Scale Irrigation; Sustainable Management, Review, Ethiopia
      Issue No: Vol. 9
       
  • Land Use/Land Cover Dynamics in the Western Highlands of Ethiopia: The
           Case of Meta Robi District

    • Authors: Fekadu Nemera
      Abstract: The objective of the study was to evaluate the land use/land cover dynamics in Meta Robi district, West Shoa of Ethiopia. Satellites images of 1986, 2000 and 2013 were used for the study. Global positioning system and topographical maps of scale 1:50,000 for ground verification; field observations. 30 farming household’s interview was to get additional information. ERDAS Imagine 2010 and Arc GIS 10.2 software were used for satellite image processing and data analysis. The collected data was analyzed mainly using quantitative method. The results of satellites images and household interview showed that there were an expansion of agricultural land and settlement and decrease of forest and grasslands from 1986 to 2000. Thus, proper cultivation of the land with appropriate implementation of soil fertility management measures and a forestation and reforestation activities are recommended. Keywords: Land use, land cover, Dynamics, Change analysis.
      Issue No: Vol. 9
       
  • Design of High Rise Reinforced Concrete Buildings

    • Authors: Mustafa Wassef Abdulmajeed, Ibrahim Kanan Ahmed
      Abstract: Design of a high-rise reinforced concrete building, like any engineering design, is a complex multidisciplinary process with the objective to discover, detail and construct a system to fulfill a given set of performance requirements. The success of this process is highly dependent upon the cooperation taking place between the members of the design team. Although present-day engineering computer technology allows for precise analysis and design of the different subsystems of the high-rise building, it does not readily provide insight for choosing among alternatives of these subsystems to arrive at the best overall design. The thesis begins with a review of the design of high rise buildings and the conceptual design of it. Then the study is carried out to investigate some special structural problems. The configuration examined in this study was a square twenty eight (28) story reinforced concrete structure, for three (3) different structures: the first one is core wall structure without bracing, the second is core wall structure with bracing system and the third is shear wall structural system. These three different structures subjected to different load combinations, the final result is analyzed. The analysis of the structural form performed using ETABS software program by two methods of analyzing, equivalent static method (static analysis) & response spectrum method (dynamic analysis) and the results of the analysis compared such as, displacement, drift, shear force and moment between the three structures in each methods. The design results presented in tabular form. Keywords: High rise building, Structure Design, Response Spectrum Analysis, Equivalent Static Analysis, ETABS
      Issue No: Vol. 9
       
  • Evaluation of Geogrid-Reinforced Flexible Pavement System Based on Soft
           Subgrade Soils Under Cyclic Loading

    • Authors: Namir G. Ahmed Alkawaaz, Yasir M. AL-Badran, Yasir H. Muttashar
      Abstract: Geogrids have been successfully used to improve soft subgrade and reinforce weak base course by providing lateral confinement. However, Soft saturated fine-grained subgrade soils are distinguished by their high compressibility and low undrained shear strength. Moreover, when the stress is applied on the soft foundation soil resulting from repeated traffic load causing the soil particles to press together and the volume of the soil will decrease resulting in settlements. While applying stress on saturated soft foundation soil due to the increase of the water stress is squeezed out of the soft subsoil causing settlements. In this regard, geogrid reinforcement is the soil improvement technique which proposed to be used in this study to provide a solution for this problem. Using these techniques has been contributing to enhancing the pavement performance systems including the increase of the pavement service life. To simulate the above-mentioned situation, the experimental work included two models: raw materials model and geogrid model. A laboratory model tests are carried out to simulate the asphalt pavement layers and design cycling load system equivalent to the standard single axle load, which were prepared throughout a design and assembling of steel Container model. In this study, development of three-dimensional finite element models for flexible pavement system based on the numerical study has been carried out throughout the application of elastic model using ABAQUS software ver.6.14.4 to simulate and analyze the relationship between the number of applied load cycles and permanent displacement for the pavement layers of two model. The test results that recorded at 1600 cycle load, showed that the permanent displacement at the surface of pavement for improved models and compared with the raw material model has seen decreases by (7.75%). Also, by using the reinforced model is found to be more effective to resist vertical strain under cyclic load at the surface of subgrade soil if compared with the raw material model. Moreover. The results of ABAQUS program are very close to results of laboratory tests. Keywords: Geo-Grid Reinforcement, Soft Subgrade, ABAQUS.
      Issue No: Vol. 9
       
  • Investigating Causes of Conflict and Rivalry among Professionals in
           Construction Industry in Nigeria

    • Authors: Olumide Adenaiya, John Adejugbagbe
      Abstract: The Nigeria construction industry is a dynamic industry that has been plagued with different conflicts and roles rivalry. This is borne out of the fact that every professional body wants to arrogate all the activities in the construction industry to itself. These activities include the processes involved in designing and constructing a building. In other to reduce this conflict, this study investigates the causes, effects and remedies of conflict among the professionals in the built environment. They also investigate the core roles of these professionals. This study interviewed ten top professionals each from NOIB, NIQS, NISE and NIA. The aim of the study were to investigate causes and effect of conflict and rivalry among the professionals in construction industry in Nigeria, the core roles of each professional were identified in order to prevent overlapping of duties. It is also expected that the causes of conflict were identified so that they can be prevented from recurring. The remedies to the conflict and role rivalry were obtained from the professionals themselves and harmonised for industry’s practitioners. Keywords: Conflict, Professionals, Rivalry and Roles
      Issue No: Vol. 9
       
  • Effect of Longitudinal Hollows on Behavior and Capacity of High Strength
           Reinforced Concrete One Way Slabs

    • Authors: Wisam Hulail Sultan, Ra'id Fadhil Abbas
      Abstract: This work involves experimental study for the effect of longitudinal hollows on behavior of HSC one way slabs. Six slabs of 1000×450×70 mm were tested. The parameters of the study are number, diameter and volume of the hollows and flexural reinforcement ratio (ρ). The hollows were made by embedding PVC pipes. Presence of hollows reduces cracking and ultimate capacities of the slab. The reductions are larger with increasing number, diameter and volume of hollows. Maximum reduction in cracking capacity is 26.9 % when 32 % hollows are used with ρ = 0.45 %. Using 32 % hollows reduces the ultimate capacity by 12.9 % when ρ = 0.45 % and by 20.3 for ρ = 1.2 %. Using 32 % hollows with ρ = 1.2 % prevents the flexural failure to finally take place due to the bearing failure at supporting region. Increasing (ρ) has significant effect on ultimate capacity and this effect is smaller in hollowed slab than in solid slab. Presence of hollows increases deflection values and makes load – deflection response softer especially in advanced loading stages. Also, crack width values at service stage increases with increasing volume of the hollows. Longitudinal hollows have convergent effects in reduction of the ultimate capacity and ultimate loads that result to very small effect on slab adequacy for carrying the applied loads. This makes it is useful using the hollows in construction of one way slabs especially when HSC is used. Keywords: one way slab, hollow, high strength, cracking, ultimate capacity
      Issue No: Vol. 9
       
 
 
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