Olisanwendu Ogwuda - Academia.edu (original) (raw)

Papers by Olisanwendu Ogwuda

Research paper thumbnail of A materials technology-management (MT-M) framework for sustainable road construction

Research paper thumbnail of Undergraduate construction skills application

Research paper thumbnail of Rapid water content measurement for processed asphalt planings

A rapid field technique for evaluating water content of processed asphalt planings has been devel... more A rapid field technique for evaluating water content of processed asphalt planings has been developed. The need for developing a rapid water content measurement technique has arisen from a technology programme (partly sponsored by the UK Government), in which a commercially viable novel process for road asphalt planings has been established. Integral to the process is the addition of water and the ability to rapidly and reliably determine the water content during production, stockpiling and transportation of the processed asphalt planings. Various techniques exist for measuring water content, but these are generally applicable for aggregates and soil. This paper appraises the various techniques for measuring water content and proposes techniques that would be most suited for asphalt planings. The standard methods of measuring moisture content can be time consuming and are not suitable for routine field production, sampling, stockpiles and transportation. Experimental work has been u...

Research paper thumbnail of Water for Walami : a strategy game

Research paper thumbnail of Peer support equals successful study

Research paper thumbnail of Variation in Particle Size Distribution from Primary Crushing of Demolition Waste

This work investigates the variability in particle size distribution of sixty samples of demoliti... more This work investigates the variability in particle size distribution of sixty samples of demolition waste produced by different primary crushing processes. The demolition waste consisted of mainly concrete, clay bricks and clinker (breeze) blocks with concrete forming most of the waste. The results indicate that the particle size distribution curves are consistently well-graded, not significantly variable and similar to British specification for sub-base Type 1 material in spite of the variable nature of the demolition waste and the unsophisticated primary crushing processes (compared to quarry processes). With good control during the demolition and primary crushing processes, consistent demolition waste can be produced. The work forms part of an overall research investigation to assess the load-bearing and durability characteristics of demolition wastes for use in road pavements. For the covering abstract see ITRD E112391.

Research paper thumbnail of A Comparison of different Non-linear Numerical Models for Pier Shaft interaction analysis for study of the seismic performance of Bridges

The AASHTO code of practice for design of bridges shows that the ductility level for foundation i... more The AASHTO code of practice for design of bridges shows that the ductility level for foundation is given equal to one. Bridges are classified in three classes of bridges. For class of essential and normal bridges a question for not to use ductility level due to the importance of bridges’ costs is become an important item in different countries particularly in Middle east. this paper aimed to study on performance of bridges based on the effect of soil non-linear behavior. A comparison between Finite Difference (F.D), Finite Element (F.E) methods and close form solutions has been carried out on single and group piles under lateral loads in multilayered soils. Winkler model with non-linear springs, FLAC-3D, ANSYS5.4 and ABAQUS software were used for verifications. the Lagrangian method was considered in FLAC-3D and the Drucker-Prager was used in ANSYS. Pile behavior in sandy soils, uniform clayey soils, clayey deposits including sandy lenses, and Sand deposits with thin clay layers wer...

Research paper thumbnail of An investigation into the effectiveness of Sustainable floating buildings using ranking analysis method based on existing experiences in the middle east

The use of marine environment for human life due to its positive effects on life style has create... more The use of marine environment for human life due to its positive effects on life style has created new ideas for offshore construction. In this new generation of offshore projects, the use of offshore pile-deck structures, sea reclamation by offshore soil embankment for creating the artificial Islands and, the use of floating structures have been used in the Persian Gulf. The “World and Palm Jumeirah” projects in Dubai (UAE) and a project in Kingdom of Bahrain are samples for marine reclamation. “Mitra” project in “Kish” Island (Iran) is an example for pile and deck system for offshore housing. The idea for floating marina in Dubai is an example for floating building in this region. This paper has studied on these three different experiences for offshore construction in the Gulf region using the weighted parameters ranking analysis method. Weight factors applied to the effective parameters based on clients/owners' and engineer's preferences. Results show that; although recla...

Research paper thumbnail of An efficient cost analysis of monorail in the Middle East using statistics of existing monorail and metro models

Urban Transport XVIII, 2012

Research paper thumbnail of Materials science appraisal of recycled construction materials for roadways

This work investigates the variability in particle size distribution of sixty samples of demoliti... more This work investigates the variability in particle size distribution of sixty samples of demolition waste produced by different primary crushing processes. The demolition waste consisted of mainly concrete, clay bricks and clinker (breeze) blocks with concrete forming most of the waste. The results indicate that the particle size distribution curves are consistently wellgraded, not significantly variable and similar to British specification for subbase Type 1 material in spite of the variable nature of the demolition waste and the unsophisticated primary crushing processes (compared to quarry processes). With good control during the demolition and primary crushing processes consistent demolition waste can be produced. The work forms part of an overall research investigation to assess the load-bearing and durability characteristics of demolition wastes for use in road pavements.

Research paper thumbnail of A materials technology-management (MT-M) framework for sustainable road construction

Research paper thumbnail of Undergraduate construction skills application

Research paper thumbnail of Rapid water content measurement for processed asphalt planings

A rapid field technique for evaluating water content of processed asphalt planings has been devel... more A rapid field technique for evaluating water content of processed asphalt planings has been developed. The need for developing a rapid water content measurement technique has arisen from a technology programme (partly sponsored by the UK Government), in which a commercially viable novel process for road asphalt planings has been established. Integral to the process is the addition of water and the ability to rapidly and reliably determine the water content during production, stockpiling and transportation of the processed asphalt planings. Various techniques exist for measuring water content, but these are generally applicable for aggregates and soil. This paper appraises the various techniques for measuring water content and proposes techniques that would be most suited for asphalt planings. The standard methods of measuring moisture content can be time consuming and are not suitable for routine field production, sampling, stockpiles and transportation. Experimental work has been u...

Research paper thumbnail of Water for Walami : a strategy game

Research paper thumbnail of Peer support equals successful study

Research paper thumbnail of Variation in Particle Size Distribution from Primary Crushing of Demolition Waste

This work investigates the variability in particle size distribution of sixty samples of demoliti... more This work investigates the variability in particle size distribution of sixty samples of demolition waste produced by different primary crushing processes. The demolition waste consisted of mainly concrete, clay bricks and clinker (breeze) blocks with concrete forming most of the waste. The results indicate that the particle size distribution curves are consistently well-graded, not significantly variable and similar to British specification for sub-base Type 1 material in spite of the variable nature of the demolition waste and the unsophisticated primary crushing processes (compared to quarry processes). With good control during the demolition and primary crushing processes, consistent demolition waste can be produced. The work forms part of an overall research investigation to assess the load-bearing and durability characteristics of demolition wastes for use in road pavements. For the covering abstract see ITRD E112391.

Research paper thumbnail of A Comparison of different Non-linear Numerical Models for Pier Shaft interaction analysis for study of the seismic performance of Bridges

The AASHTO code of practice for design of bridges shows that the ductility level for foundation i... more The AASHTO code of practice for design of bridges shows that the ductility level for foundation is given equal to one. Bridges are classified in three classes of bridges. For class of essential and normal bridges a question for not to use ductility level due to the importance of bridges’ costs is become an important item in different countries particularly in Middle east. this paper aimed to study on performance of bridges based on the effect of soil non-linear behavior. A comparison between Finite Difference (F.D), Finite Element (F.E) methods and close form solutions has been carried out on single and group piles under lateral loads in multilayered soils. Winkler model with non-linear springs, FLAC-3D, ANSYS5.4 and ABAQUS software were used for verifications. the Lagrangian method was considered in FLAC-3D and the Drucker-Prager was used in ANSYS. Pile behavior in sandy soils, uniform clayey soils, clayey deposits including sandy lenses, and Sand deposits with thin clay layers wer...

Research paper thumbnail of An investigation into the effectiveness of Sustainable floating buildings using ranking analysis method based on existing experiences in the middle east

The use of marine environment for human life due to its positive effects on life style has create... more The use of marine environment for human life due to its positive effects on life style has created new ideas for offshore construction. In this new generation of offshore projects, the use of offshore pile-deck structures, sea reclamation by offshore soil embankment for creating the artificial Islands and, the use of floating structures have been used in the Persian Gulf. The “World and Palm Jumeirah” projects in Dubai (UAE) and a project in Kingdom of Bahrain are samples for marine reclamation. “Mitra” project in “Kish” Island (Iran) is an example for pile and deck system for offshore housing. The idea for floating marina in Dubai is an example for floating building in this region. This paper has studied on these three different experiences for offshore construction in the Gulf region using the weighted parameters ranking analysis method. Weight factors applied to the effective parameters based on clients/owners' and engineer's preferences. Results show that; although recla...

Research paper thumbnail of An efficient cost analysis of monorail in the Middle East using statistics of existing monorail and metro models

Urban Transport XVIII, 2012

Research paper thumbnail of Materials science appraisal of recycled construction materials for roadways

This work investigates the variability in particle size distribution of sixty samples of demoliti... more This work investigates the variability in particle size distribution of sixty samples of demolition waste produced by different primary crushing processes. The demolition waste consisted of mainly concrete, clay bricks and clinker (breeze) blocks with concrete forming most of the waste. The results indicate that the particle size distribution curves are consistently wellgraded, not significantly variable and similar to British specification for subbase Type 1 material in spite of the variable nature of the demolition waste and the unsophisticated primary crushing processes (compared to quarry processes). With good control during the demolition and primary crushing processes consistent demolition waste can be produced. The work forms part of an overall research investigation to assess the load-bearing and durability characteristics of demolition wastes for use in road pavements.