mutiu akinpelu - Academia.edu (original) (raw)

Papers by mutiu akinpelu

International journal of engineering research in Africa, Apr 10, 2024

Research on engineering structures & materials, 2024

Iranica journal of energy and environment, 2022

Materials Today: Proceedings

LAUTECH Journal of Civil and Environmental Studies

The need for habitable and affordable shelter cannot be overemphasized but the high cost of compo... more The need for habitable and affordable shelter cannot be overemphasized but the high cost of components of shelter such as hollow sandcrete blocks, bricks etc. posed a challenge to our ability to access affordable and habitable shelter. Utilization of already discarded waste foundry sand (WFS) as eco-friendly construction material for production of hollow sandcrete blocks, will save cost and preserve our environment. In this study, impact of locally available waste foundry sand as partial substitute for sharp sand in production of hollow sandcrete blocks was investigated. Sharp sand was partially substituted with WFS at 0, 10, 20 and 30%. A mix ratio of 1:6 (ratio of cement to sharp sand) and a water-cement ratio of 0.5 were used. Hollow sandcrete blocks were subjected to compressive strength tests at 7th and 28th days as well as a water absorption test on the 28th-day. Outcomes of the research showed that an increase in the amount of WFS led to the loss of compressive strength acros...

Progress in Polymer Science(UK), 1991

... An extensive review dealing with the synthesis of polyamides, properties of poly(amic-acids),... more ... An extensive review dealing with the synthesis of polyamides, properties of poly(amic-acids), retention of molecular weight on conversion of poly(amic-acids) to polyimides, structure--property relationships of polyimides, crosslinking of polyimides and polyimide applications is ...

Journal of Materials and Engineering Structures « JMES », Jun 26, 2021

Nigerian Journal of Technological Development, 2018

International Journal of Sustainable Construction Engineering and Technology, 2017

Sandcrete block is a dominant material for wall construction but it is often characterized with h... more Sandcrete block is a dominant material for wall construction but it is often characterized with high cost and low strength property. This has necessitated the need to source for new materials within our environment. Clay is a natural material that is widely available in many countries of the world and it has the potential to establish better strength property than sandcrete blocks when mixed with straw. The straw serves as reinforcement that increases its compressive strength. The results obtained from this research shows that with the addition of straw (0.0025%, 0.005%, 0.0075% and 0.01%) at water-clay mixing ratio of 0.15, the compressive strength of the clay brick increased up to 148% of the strength of the clay without straw. The Scanning Electron Micrograph (SEM) results shows a strong adhesion between brick and straw fiber without any sign of brick saturation. This reveals that the addition of straw increased the compressive strength of the clay brick.

Nigerian Journal of Technology, 2018

Polymer Engineering and Science, 1990

Alexandria Engineering Journal, 2013

Journal of Materials and Engineering Structures « JMES », Oct 5, 2021

Analysis of reinforced concrete deep beam is based on simplified approximate method due to the co... more Analysis of reinforced concrete deep beam is based on simplified approximate method due to the complexity of the exact analysis. The complexity is due to a number of parameters affecting its response. To evaluate some of this parameters, finite element study of the structural behaviour of reinforced self-compacting concrete deep beam was carried out using Abaqus finite element modeling tool. The model was validated against experimental data from literature. The parametric effects of varied concrete compressive strength, vertical web reinforcement ratio and horizontal web reinforcement ratio on the beam were tested on eight (8) different specimens under four point loads. The results of the validation work showed good agreement with the experimental studies. The parametric study revealed that the concrete compressive strength most significantly influenced the specimens' response with the average of 41.1% and 49 % increment in the diagonal cracking and ultimate load respectively du...

International Journal of Engineering Research in Africa, 2021

This study utilized Finite Element Method (FEM) to analyse the structural behaviour and failure m... more This study utilized Finite Element Method (FEM) to analyse the structural behaviour and failure modes of Reinforced Self Compacting Concrete (RSCC) deep beams. Eighteen deep beam specimens subjected to four-point loadings were modelled and analyzed using Abaqus modelling tool. Damage plasticity model was used to characterised the nonlinear behaviour of concrete material while linear elastic, linear-plastic-hardening model represented the reinforcing steel material behaviour. The results of the finite model were compared with four different Strut and Tie Models (STMs) using one-way Analysis of Variance (ANOVA). Results of the numerical study revealed that the concrete strength and shear span to depth ratio mostly affect the load-deflection response of the beams. Also, the failure modes of the studied deep beams were influenced by shear span to depth ratio, concrete strength as well as web reinforcement distribution. The ANOVA results also showed that the FEM outperformed the existing...

In this study, selected culverts along Ilorin – Jebba road, Kwara State were hydraulically analyz... more In this study, selected culverts along Ilorin – Jebba road, Kwara State were hydraulically analyzed using HY-8 modelling tool. Hydrological analyses of the culverts were performed using rational method for the computation of design discharges. On site information such as tail water data such as channel type and bottom width, roadway data such as crest length and culvert data such as culvert material and span were collected from each of the culverts and were used in conjunction with estimated design discharge as input data for HY-8 modeling tool to facilitate the hydraulic analysis of the culverts. Hydrological analysis showed that the highest design flow of 9.09 m3/s was obtained at culvert located at Km 11+775 while the least design flow of 1.83 m3/s was obtained at culvert located at Km 3+300. Hydraulic analysis revealed that seven of the analyzed culverts have adequate capacity to convey the design flow while three culverts were found inadequate to convey the design flow and ...

International Journal of Engineering Research in Africa

Bridge Scour is the localized loss of the geomaterials around the foundation of a bridge as a res... more Bridge Scour is the localized loss of the geomaterials around the foundation of a bridge as a result of the movement of water around it. Scour is a great risk to the stability of a bridge’s foundation, thus leading to collapse, loss of lives and setback in a nation’s socio-economic life. Artificial Neural Networks (ANN) are collections of simple, highly connected processing elements that learn according to sets of input parameters and use that to simulate the networks of nerve cells of humans or animal central nervous system. The Asa Dam Bridge, one of the longest bridges in Ilorin, Kwara State, Nigeria, has five (5) spans of 20m each. The bridge connects Ilorin to the Ogbomosho Express way (leading to the western part of the country) and the Eyenkorin-Jebba road (leading to the north). Thus, the bridge has a high economic value. In this research, factors such as flow depth, average flow velocity of the river and median sediment size were investigated to show how they affect the dep...