2023
OLAJIDE, ELEYOWO ISRAEL OLUSEGUN; SOTONWA OLAWALE EMMANUEL; OGUNTUNASE IBUKUN ADEOLA; IBIKUNLE
OVERVIEW AND STATISTICAL ANALYSIS OF ROAD ACCIDENT IN OGUN STATE, NIGERIA Journal Article
In: International Journal of Advances in Civil and Infrastructure Engineering, vol. 2, iss. 1, pp. 1-5, 2023, ISSN: 2550-7192.
@article{IJACIE23-01-001,
title = {OVERVIEW AND STATISTICAL ANALYSIS OF ROAD ACCIDENT IN OGUN STATE, NIGERIA},
author = {ELEYOWO ISRAEL OLUSEGUN; SOTONWA OLAWALE EMMANUEL; OGUNTUNASE IBUKUN ADEOLA; IBIKUNLE OLAJIDE},
editor = {Dr. Akinola Johnson OLAREWAJU},
url = {http://perfectengineeringassociates.com/wp-content/uploads/2023/12/IJACIE-23-01-001.pdf},
issn = {2550-7192},
year = {2023},
date = {2023-06-01},
journal = {International Journal of Advances in Civil and Infrastructure Engineering},
volume = {2},
issue = {1},
pages = {1-5},
abstract = {The research design used for this study was the descriptive research design. The secondary data includes information obtained through the review of literature that is journals, monographs, textbooks and other periodicals. In order to determine the reliability and validity of the study, the test-retest method was used. To have a valid instrument, the questions in the questionnaire were free from ambiguity (i.e the questions will not be too complex). To have reliable instrument, the questionnaire were followed with interview of sample of respondents to know whether their view on the subject. Suggestions were made to reduce and or prevent traffic accident occurrence in the country.
Key Word: Road Accident, Transportation, Traffic, Causes, Suggestions},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The research design used for this study was the descriptive research design. The secondary data includes information obtained through the review of literature that is journals, monographs, textbooks and other periodicals. In order to determine the reliability and validity of the study, the test-retest method was used. To have a valid instrument, the questions in the questionnaire were free from ambiguity (i.e the questions will not be too complex). To have reliable instrument, the questionnaire were followed with interview of sample of respondents to know whether their view on the subject. Suggestions were made to reduce and or prevent traffic accident occurrence in the country.
Key Word: Road Accident, Transportation, Traffic, Causes, Suggestions
Key Word: Road Accident, Transportation, Traffic, Causes, Suggestions
2021
OLAREWAJU, Akinola Johnson
California Bearing-Ratio Characteristics of Plastic Pellet Stabilized Sedimentary Formation Journal Article
In: International Journal of Advances in Civil and Infrastructure Engineering, vol. 1, no. 1, pp. 1-7, 2021, ISSN: 2550-7192.
@article{IJACIE-21-001,
title = {California Bearing-Ratio Characteristics of Plastic Pellet Stabilized Sedimentary Formation},
author = {Akinola Johnson OLAREWAJU},
editor = {Dr. Akinola Johnson OLAREWAJU},
url = {http://perfectengineeringassociates.com/wp-content/uploads/2021/01/IJACIE-21-001.pdf},
issn = {2550-7192},
year = {2021},
date = {2021-01-23},
journal = {International Journal of Advances in Civil and Infrastructure Engineering},
volume = {1},
number = {1},
pages = {1-7},
abstract = {Improving the engineering properties of lateritic soils by including stabilizing agent, such as cement, lime, bitumen, etc. helps to reduce settlement underneath the engineering structures. Plastic pollution is the accumulation of plastic objects and particles in the Earth's environment that adversely affects wildlife, and human. Living organisms, particularly marine animals, can be harmed by problems related to ingestion of plastic waste or through exposure to chemicals within plastics that interfere with their physiology. The lateritic soil used in this study was taken from the sedimentary formation located at Abalabi ( 53’ 13.758”N, 7’ 59.994”E), Ajegunle, along Papalanto-Ilaro road, Ogun State, Nigeria plastic wastes were taken from different location in Ilaro, Ogun State, Nigeria. The plastic wastes were cut into pieces passing through 5mm sieve and then substituted for lateritic soil in the range of 0% to 50% at 5% intervals with 0% plastic pellet substitution serving as control experiment. In line with BS 1377 (1990), California Bearing-Ratio tests were conducted on the composite materials at different test water contents for all the substitutions. From the results, California Bearing-Ratio value increased gradually as plastic pellet substitution increases. In addition to this, 5% and 10% substitutions have the maximum CBR value at both top and bottom. Furthermore, between 25% to 50% plastic pellet substitutions, CBR values are highest from their first test water content. The composite material at 5% to 10% plastic pellet substitution could be used for road base and sub base, most especially rural roads. Therefore, environment risk and hazard caused by plastic waste could be greatly reduced, if not completely eliminated.
Keywords: CBR, Pressure, Loads, Variation, Stabilization, Sedimentary, Formation Composite, Material},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Improving the engineering properties of lateritic soils by including stabilizing agent, such as cement, lime, bitumen, etc. helps to reduce settlement underneath the engineering structures. Plastic pollution is the accumulation of plastic objects and particles in the Earth's environment that adversely affects wildlife, and human. Living organisms, particularly marine animals, can be harmed by problems related to ingestion of plastic waste or through exposure to chemicals within plastics that interfere with their physiology. The lateritic soil used in this study was taken from the sedimentary formation located at Abalabi ( 53’ 13.758”N, 7’ 59.994”E), Ajegunle, along Papalanto-Ilaro road, Ogun State, Nigeria plastic wastes were taken from different location in Ilaro, Ogun State, Nigeria. The plastic wastes were cut into pieces passing through 5mm sieve and then substituted for lateritic soil in the range of 0% to 50% at 5% intervals with 0% plastic pellet substitution serving as control experiment. In line with BS 1377 (1990), California Bearing-Ratio tests were conducted on the composite materials at different test water contents for all the substitutions. From the results, California Bearing-Ratio value increased gradually as plastic pellet substitution increases. In addition to this, 5% and 10% substitutions have the maximum CBR value at both top and bottom. Furthermore, between 25% to 50% plastic pellet substitutions, CBR values are highest from their first test water content. The composite material at 5% to 10% plastic pellet substitution could be used for road base and sub base, most especially rural roads. Therefore, environment risk and hazard caused by plastic waste could be greatly reduced, if not completely eliminated.
Keywords: CBR, Pressure, Loads, Variation, Stabilization, Sedimentary, Formation Composite, Material
Keywords: CBR, Pressure, Loads, Variation, Stabilization, Sedimentary, Formation Composite, Material
2019
Nigeria, Akinola Johnson OLAREWAJU
Effects of Varying Parameters on Underground Structures (Pipes) Due to Seismic Action of Surface Accidental Explosion Journal Article
In: International Journal of Advances in Civil and Infrastructure Engineering, vol. 1, no. 1, pp. 6, 2019, ISSN: 2550-7192.
@article{IJACIE1901001,
title = {Effects of Varying Parameters on Underground Structures (Pipes) Due to Seismic Action of Surface Accidental Explosion},
author = {Nigeria, Akinola Johnson OLAREWAJU},
editor = {Dr. Akinola Johnson OLAREWAJU},
url = {http://ijari.org.ng/wp-content/uploads/2019/11/IJACIE-19-01-001.pdf},
issn = {2550-7192},
year = {2019},
date = {2019-11-10},
journal = {International Journal of Advances in Civil and Infrastructure Engineering},
volume = {1},
number = {1},
pages = {6},
abstract = {Behavior of underground pipes due to accidental explosion above the ground surface was studied using finite element based numerical code, ABAQUS. Pressure load parameters from accidental explosions above the ground surface but very close to the ground surface were estimated using Unified Facilities Criteria (2008). Using the ground movement parameters, behaviors of modeled steel and concrete pipes buried in loose sand, dense sand and undrained clay were examined and parametric studies carried out. For the elastic, homogeneous and isotropic materials considered, the values of Young’s modulus, E, Poisson’s ratio, υ and densities of steel, concrete, loose sand, dense sand and undrained clay as revealed by several researchers and pipe manufacturers were used to observed the behavior of underground pipes buried at 1m depth due to loads from accidental explosion above the ground surface and parameters varied. Time integration technique of finite difference and finite element in ABAQUS/Explicit numerical code was used to solve the governing dynamic equation of motion. The observed parameters are displacement, pressure, mises and strain at the crown, invert and sprig-line of pipes buried in different soil media. From the results, there is no remarkable changes in the behavior of all the coefficient of friction investigated while there is reduction in mises, stress and displacement as the thickness of steel and concrete pipes increases. There is reduction in crown and spring-line as the Young’s modulus of soil and pipe increases while all the observed paremeters increases as the pressure loads increases in steel and concrete pipes.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Behavior of underground pipes due to accidental explosion above the ground surface was studied using finite element based numerical code, ABAQUS. Pressure load parameters from accidental explosions above the ground surface but very close to the ground surface were estimated using Unified Facilities Criteria (2008). Using the ground movement parameters, behaviors of modeled steel and concrete pipes buried in loose sand, dense sand and undrained clay were examined and parametric studies carried out. For the elastic, homogeneous and isotropic materials considered, the values of Young’s modulus, E, Poisson’s ratio, υ and densities of steel, concrete, loose sand, dense sand and undrained clay as revealed by several researchers and pipe manufacturers were used to observed the behavior of underground pipes buried at 1m depth due to loads from accidental explosion above the ground surface and parameters varied. Time integration technique of finite difference and finite element in ABAQUS/Explicit numerical code was used to solve the governing dynamic equation of motion. The observed parameters are displacement, pressure, mises and strain at the crown, invert and sprig-line of pipes buried in different soil media. From the results, there is no remarkable changes in the behavior of all the coefficient of friction investigated while there is reduction in mises, stress and displacement as the thickness of steel and concrete pipes increases. There is reduction in crown and spring-line as the Young’s modulus of soil and pipe increases while all the observed paremeters increases as the pressure loads increases in steel and concrete pipes.
2018
Nigeria, Akinola Johnson OLAREWAJU
Settlement Potentials and Characteristics of Plastic Pellet Stabilized Sedimentary Formation Journal Article
In: International Journal of Advances in Civil and Infrastructure Engineering, vol. 1, no. 1, pp. 1-4, 2018, ISSN: ISSN: 2550-7192.
@article{IJACIE701001,
title = {Settlement Potentials and Characteristics of Plastic Pellet Stabilized Sedimentary Formation},
author = {Nigeria, Akinola Johnson OLAREWAJU},
editor = {Dr. Akinola Johnson OLAREWAJU},
url = {http://ijari.org.ng/wp-content/uploads/2018/11/IJACIE-18-01-001.pdf},
issn = {ISSN: 2550-7192},
year = {2018},
date = {2018-11-28},
journal = {International Journal of Advances in Civil and Infrastructure Engineering},
volume = {1},
number = {1},
pages = {1-4},
abstract = {Structure built over a layer of saturated clay will result to consolidation settlement if the water table is lower permanently in a stratum overlaying a clay layer. The time taken for settlement is a factor that can influence the design and construction of civil engineering infrastructures. The coefficient of compressibility is the most suitable of all the consolidation parameters for direct estimation of settlement. In the world today, plastic waste has constituted environmental nuisance most especially in developing nations. Due to non-biodegradable nature of plastic waste, there is need to find alternative use, most especially in construction industry. In this study, the lateritic soil used was taken on the Ibeshe-Ewekoro-Ilaro Formation at Abalabi, along Papalanto-Ilaro road, Ogun State, Nigeria and the solid plastic wastes were taken from plastic recycling plant at Papalanto, Ogun State, Nigeria. The plastic wastes were cut into pellets passing through 5mm sieve and then substituted for lateritic soil from 0% to 50% at 5% interval while 0% plastic pellet substitution served as control experiment. For settlement potentials, 90% consolidation tests conducted on the composite materials of plastic pellet stabilized lateritic soil in line with BS 1377 (1990). From the results, coefficient of volume compressibility (Mv) and oedometer settlement (Soed) increases at certain dosage of plastic pellet increases in the lateritic soil. The use of plastic as lateritic soil stabilizers will reduce the quantity of waste and therefore, environmental risks and hazards caused by plastic waste would be greatly reduced if not completely eliminated.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Structure built over a layer of saturated clay will result to consolidation settlement if the water table is lower permanently in a stratum overlaying a clay layer. The time taken for settlement is a factor that can influence the design and construction of civil engineering infrastructures. The coefficient of compressibility is the most suitable of all the consolidation parameters for direct estimation of settlement. In the world today, plastic waste has constituted environmental nuisance most especially in developing nations. Due to non-biodegradable nature of plastic waste, there is need to find alternative use, most especially in construction industry. In this study, the lateritic soil used was taken on the Ibeshe-Ewekoro-Ilaro Formation at Abalabi, along Papalanto-Ilaro road, Ogun State, Nigeria and the solid plastic wastes were taken from plastic recycling plant at Papalanto, Ogun State, Nigeria. The plastic wastes were cut into pellets passing through 5mm sieve and then substituted for lateritic soil from 0% to 50% at 5% interval while 0% plastic pellet substitution served as control experiment. For settlement potentials, 90% consolidation tests conducted on the composite materials of plastic pellet stabilized lateritic soil in line with BS 1377 (1990). From the results, coefficient of volume compressibility (Mv) and oedometer settlement (Soed) increases at certain dosage of plastic pellet increases in the lateritic soil. The use of plastic as lateritic soil stabilizers will reduce the quantity of waste and therefore, environmental risks and hazards caused by plastic waste would be greatly reduced if not completely eliminated.
