15 publications
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Evaluation of the Flow Properties of Self-Compacting Fly-ash Concrete Using Artificial Neural NetworkBy Temple Nwofor, L.A. Joshua
Abstract: The purpose of this study is to examine the feasibility of using artificial neural network programming for the calculation of the fresh properties of self-compacting concrete. The input parameters of the neural network were the mix composition influencing the fresh properties of self-compacting concrete namely; the cement content, the dosages of fly-ash, water, fine aggregate, coarse aggregate, and superplasticizer. The model is founded on a multilayer feed forward neural network. …
Published in International Journal of Structural Engineering and Analysis · Vol. 7, Issue 2, 2021 · pp. 35–40 Read article →
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Potential of Limestone Powder in the Production of Self Compacting ConcreteBy Temple Nwofor, Y.T. Adesanya
Abstract: Self-compacting concrete (SCC) is a cutting-edge building material. It's a smooth, durable concrete that fills the formwork completely. The SCC needs a lot of powder to perform well (mostly cement). However, increasing the cement content is impractical and may result in greater hydration heat and drying shrinkage. This project studies the effect of limestone powder (LSP) on the fresh and hardened appearances of SCC. To evaluate the samples with and …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 7, Issue 2, 2021 · pp. 17–23 Read article →
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Optimum Weight Design of a Singly Reinforced Rectangular Concrete BeamBy Temple Nwofor, Sule S.
Abstract: In this paper, the results of the optimum weight design of a simply supported singly reinforced concrete rectangular beam under uniform loading with respect to bending moment, steel ratio and design variable constraints are discussed. The design constraints were derived based on BS 8110, Part 1, 1997 design rules. The values of the design variables that optimized the self-weight of the beam subject to the constraints considered were obtained using …
Published in International Journal of Concrete Technology · Vol. 7, Issue 2, 2021 · pp. 16–22 Read article →
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Optimization of Compressive Strength of Snail Shell Ash Blended Cement ConcreteBy Temple Nwofor, Sule S., Dim I.H.
Abstract: In this paper, a mathematical model is developed to optimize the compressive strength and the corresponding values of the mixture proportions of snail shell ash blended cement concrete using Scheffe’s regression method.A computer program written in qbasic language was invoked to quicken the selection of the cheapest mix ratios and the corresponding value of compressive strength of concrete. The mix ratio that optimized the compressive strength was found to be …
Published in International Journal of Construction Engineering and Planning · Vol. 6, Issue 2, 2020 · pp. 29–37 Read article →
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Mathematical Model for the Predictionof Compressive Strength of High Performance Concrete (HPC) Containing Saw Dust Ash and SuperplasticizerBy Temple Nwofor, Sule S., Ebirien-Agana M.G
Abstract: This paper examined the prediction of compressive strength of High Performance Concrete (HPC) containing Saw Dust Ash (SDA) and Conplast SP 430 (superplasticizer), using Osadebe’s regression theory.The model developed was tested for adequacy at 95 % level of confidence using F-Statistic and was found to be reliable. A computer program written in visual basic 6.0 based on the model formulated was invoked for quick prediction of the mix ratios corresponding …
Published in International Journal of Construction Engineering and Planning · Vol. 6, Issue 2, 2020 · pp. 15–28 Read article →
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Prediction of Circular Frequency of Precast Concrete Piles with Distributed Mass by Resonance Moment–Displacement ApproachBy Temple Nwofor, Sule, S.
Abstract: This paper presents the results of circular natural frequency of single piles from critical buckling load by resonance moment-displacement approach. The support end conditions considered are pinned-pinned, fixed-fixed, and fixed-pinned respectively. It was assumed that resonance moment occurs when the bending moment diagram is made equal to zero at the supports while the resonance displacement is the sum total deflections resulting from the system reduction to an equivalent pinned-pinned system. …
Published in International Journal of Structural Engineering and Analysis · Vol. 6, Issue 2, 2020 · pp. 55–61 Read article →
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Prediction of Compressive strength of Periwinkle Shell Aggregate Concrete Using a Quadratic Polynomial FunctionBy Temple Nwofor, Muhammed A., Sule S.
Abstract: In this study, a mathematical model is developed to predict the compressive strength of normal concrete made with periwinkle shell as coarse aggregate using a quadratic polynomial function. The response function is expressed as a multivariable function of the proportions of the component materials (water, ordinary Portland cement, sand and periwinkle shell). A total of thirty experimental runs were used to demonstrate the applicability of the mathematical model developed. The …
Published in International Journal of Concrete Technology · Vol. 6, Issue 2, 2020 · pp. 10–21 Read article →
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Effect of varying water temperature on concrete propertiesBy Temple Nwofor, K.K. OSUJI
Abstract: The aim of this paper is to determine the effects of mixing-water temperature on the compressive strength, workability and water absorption rate of concrete. Locally available materials were used. Compression tests results showed that the 7 days value of 19.52N/mm2 at 35°C was higher than the value of 9.96N/mm2 at 5°C. The 28th day results for compression test also showed similar trend. The workability of the concrete decreased as the …
Published in International Journal of Concrete Technology · Vol. 6, Issue 1, 2020 · pp. 1–6 Read article →
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Effect of magnetic pole direction on the properties of magnetized water concreteBy Temple Nwofor, D.D. ALABINTEI
Abstract: This project aimed to study the variations in properties of concrete when magnetized water was being used instead of normal water, and also compare the effect of the magnetic pole on magnetized water concrete. In this research, based on reviewed literature, magnetized water was prepared by filling a glass beaker with water and then placing magnets at the sides of the container for the required number of hours. Sieve analysis …
Published in International Journal of Concrete Technology · Vol. 6, Issue 1, 2020 · pp. 16–22 Read article →
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Static Analysis of Precast Concrete Piles using Resonance Moment–Displacement MethodBy Temple Nwofor, Sule S., Ihuanne E.N.
Abstract: This paper presents the results of static analysis of circular precast single piles from critical buckling load by resonance moment-displacement approach. The circular precast single piles of different support conditions; pinned-pinned, fixed-fixed, and fixed-pinned were investigated. The critical buckling load was evaluated as the resonance moment-total deflection ratio. A computer program coded in basic language was invoked to carry out a composite analysis of single piles from critical buckling load …
Published in International Journal of Structural Engineering and Analysis · Vol. 6, Issue 1, 2020 · pp. 52–61 Read article →
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Determination of the optimum magnetic exposure time for magnetic water concreteBy Temple Nwofor, C.H. AZUBUIKE
Abstract: The purpose of this study was to investigate the effect of magnetic water on the workability and compressive strength of concrete, and also to find the optimum time for exposing water to magnetic field, for which maximum compressive strength of concrete will be achieved. In this research, water was exposed to magnetic field of 336mT per magnet for a duration of 12, 18, 24, 36, and 96 hours, after which …
Published in International Journal of Construction Engineering and Planning · Vol. 6, Issue 1, 2020 · pp. 34–42 Read article →
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Finite Element Modeling of Deep Reinforced Concrete Beams with Web OpeningsBy Temple Nwofor, Jeremiah J. J.
Abstract: The effects of openings on the ultimate capacity of deep beams have been studied experimentally by many researchers. However, there’s still need for analytical study using numerical methods and also the development of simple stiffness reduction models that can be easily used for quick prediction of the effects of opening sizes on the stiffness of deep reinforced concrete beams. This study is focused on modeling the behavior of deep reinforced …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 4, Issue 2, 2018 · pp. 22–30 Read article →
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Bending Solutions of Fully Clamped Orthotropic Rectangular Thin Plate Using Finite Integral Transform MethodBy Temple Nwofor, Osere G.
Abstract: Plate as an engineering material is used widely in several areas of Engineering work, especially civil engineering structures as slab. This research work presents the solutions to the bending of orthotropic thin rectangular plates, fully clamped at all edges and subjected to three different loading conditions such as uniformly distributed load, centrally loaded concentrated point load and hydrostatic pressure, using the finite integral transform method. The results derived from this …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 4, Issue 2, 2018 · pp. 12–21 Read article →
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Analysis of Fixed Offshore Platform Deck using Acceleration - Deflection Resonance MethodBy Temple Nwofor, I. Etafo
Abstract: Steel plate is commonly used as the flooring plate for fixed offshore platform Deck and there are several existing methods for analyzing the steel plate. In this research acceleration-displacement resonance method is developed for analyzing plate. The plate is first analyzed considering arbitrary uniformly distributed and point load with an all-round simply support. The method involves transformation of bi-harmonic equation into acceleration- deflection ratio ( R_xx). From the study, the …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 4, Issue 1, 2018 · pp. 28–35 Read article →
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Design of Deep Beam Using Strut-and-Tie Method A Case Study of Pile CapBy Temple Nwofor, I.N. Aghaebene
Abstract: This study takes a look at modeling of deep beam using strut-and-tie method using pile cap as a case study. There are B and D region in the deep beam (B standing for beam or Bernoulli and D standing for discontinuity or disturbance). A deep beam has a span-depth, a/d ratio ranging from 2.0 to 2.5. Thereafter, the strut-and-tie modeling (STM) of pile cap was displayed. The STM was later …
Published in International Journal of Structural Engineering and Analysis · Vol. 4, Issue 1, 2018 · pp. 6–14 Read article →