Solving Westergaard Half-Space Problems Using Potential Theory
Solving Westergaard Half-Space Problems Using Potential Theory

Charles Chinwuba Ike

Articles in Press, Corrected Proof, Available Online from 03 December 2023

https://doi.org/10.30684/etj.2023.141182.1486

Abstract
  The Westergaard half-space problem has been solved using the potential theory in this work. It is a classical theme in elasticity theory that seeks to find the displacements and stresses ...  Read More ...
Torsional Strength of Horizontally Curved Continuous Reinforced Concrete Box Girder Bridges
Torsional Strength of Horizontally Curved Continuous Reinforced Concrete Box Girder Bridges

Asala A. Dawood; Khattab S. Abdul-Razzaq; Wael S. Abdulsahib

Articles in Press, Corrected Proof, Available Online from 03 December 2023

https://doi.org/10.30684/etj.2023.142438.1533

Abstract
  The horizontally curved box girder bridges are considered important nowadays because of their low cost compared to the load capacity and torsion moments that they can carry. This study ...  Read More ...
Modifying the Strength of Soft Soils via Heating and Cement Grouting Method
Modifying the Strength of Soft Soils via Heating and Cement Grouting Method

Ali H. Shareef; Mohammed A. Al- Neami; Falah H. Rahil

Articles in Press, Corrected Proof, Available Online from 10 December 2023

https://doi.org/10.30684/etj.2023.143018.1556

Abstract
  Soft clayey soils present geotechnical engineering challenges with significant stability and settlement. Various methods are employed to enhance the geotechnical properties of these ...  Read More ...
Effect of Structure Height on Seismic Response of Adjacent Structures Considering Soil-Structure Interaction
Effect of Structure Height on Seismic Response of Adjacent Structures Considering Soil-Structure Interaction

Mohammed A. Abdulaziz; Mohammed J. Hamood; Mohammed Y. Fattah

Articles in Press, Corrected Proof, Available Online from 29 December 2023

https://doi.org/10.30684/etj.2023.143892.1614

Abstract
  Seismic activity has emerged as a mostly attractive issue for researchers and engineers, particularly in light of the recent occurrence of severe earthquakes worldwide, such as those ...  Read More ...
Manufacturing of Sustainable Ultra-High-Performance Concrete Using Response Surface Methods
Manufacturing of Sustainable Ultra-High-Performance Concrete Using Response Surface Methods

Abbas J. Mohammed; Maan S. Hassan; Hussein Al-Quraishi

Articles in Press, Corrected Proof, Available Online from 30 December 2023

https://doi.org/10.30684/etj.2023.143595.1598

Abstract
  Quartz powder is used in ultra-high-performance concrete to improve granular packing, but repeated inhalation during manufacture can cause health issues. The mechanical properties of ...  Read More ...
Life cycle economic comparison between rigid and flexible pavement: a case study for the construction of wajen- garin barkamawa-dugurawa road in kano state nigeria
Life cycle economic comparison between rigid and flexible pavement: a case study for the construction of wajen- garin barkamawa-dugurawa road in kano state nigeria

Rowland Adewumi; Wasiu Kayode Sulaiman; Adeniyi Shola

Articles in Press, Corrected Proof, Available Online from 07 January 2024

https://doi.org/10.30684/etj.2023.144541.1637

Abstract
  Flexible pavements may be strengthened and enhanced incrementally to meet traffic needs, making them preferable to cement concrete roadways. Due to the rise of poor-quality bituminous ...  Read More ...
Strain capacity and flexural strength behavior of bendable concrete produced with different polymeric fibers
Strain capacity and flexural strength behavior of bendable concrete produced with different polymeric fibers

Ikram F. Ahmed Al-Mulla; Tareq al-Attar; Abbas Al-Ameeri; Ammar Al-Rihimy

Articles in Press, Corrected Proof, Available Online from 09 January 2024

https://doi.org/10.30684/etj.2023.142430.1531

Abstract
  The incorporation of fibers into engineered cementitious composite concrete imparts flexibility to the material. Therefore, using different types and contents of polymeric fibers would ...  Read More ...
Drought forecasting model for future climate change effects in a regional catchment area in northern iraq
Drought forecasting model for future climate change effects in a regional catchment area in northern iraq

Nasser Kh. Muhaisen; Thair S. Khayyun; Mustafa M. Al-Mukhtar

Articles in Press, Corrected Proof, Available Online from 20 January 2024

https://doi.org/10.30684/etj.2024.144458.1634

Abstract
  Climate change plays a crucial role in shaping the hydrological dynamics of rivers owing to its immediate implications on the driving meteorological parameters. Therefore, Understanding ...  Read More ...
Performance of potato starch admixture on fresh and hardened behaviours of concrete at varied mix design ratios
Performance of potato starch admixture on fresh and hardened behaviours of concrete at varied mix design ratios

Chidobere David Nwa-David

Articles in Press, Corrected Proof, Available Online from 12 February 2024

https://doi.org/10.30684/etj.2024.145272.1654

Abstract
  The urgency to attenuate techno-economic and ecological threats constituted by chemical admixtures has necessitated the adoption of feasible natural admixtures. The chemical interaction ...  Read More ...
Evaluating the structural performance of waste PET-infused interlocking units versus traditional stone masonry
Evaluating the structural performance of waste PET-infused interlocking units versus traditional stone masonry

Omogbolade L. Adepitan; Ayotunde O. Fasina

Articles in Press, Corrected Proof, Available Online from 14 February 2024

https://doi.org/10.30684/etj.2024.145504.1656

Abstract
  This study focuses on PET waste reduction worldwide by looking at the application of these polymeric materials in the construction and building industries. An effective application ...  Read More ...
Evaluating Land Use Land Cover Classification Based on Machine Learning Algorithms
Evaluating Land Use Land Cover Classification Based on Machine Learning Algorithms

Basheer S. Jasim; Oday Z. Jasim; Amjed N. AL-Hameedawi

Articles in Press, Corrected Proof, Available Online from 18 February 2024

https://doi.org/10.30684/etj.2024.144585.1638

Abstract
  Image classification depends substantially on the remote sensing method to generate maps of land use and land cover. This study used machine learning algorithms for classifying land ...  Read More ...
Effect of Bridge Piers Locations and Flow Intensity on Morphological Change in a 180-Degree River Bend
Effect of Bridge Piers Locations and Flow Intensity on Morphological Change in a 180-Degree River Bend

Abdurazaq k. Abdulwahd; Jaafar S. Maatooq

Volume 41, Issue 11 , November 2023, , Page 1241-1251

https://doi.org/10.30684/etj.2023.140134.1455

Abstract
  Bridges when it crossing rivers often required multiple piers for support. One of has a limited investigation is the impact of piers on scouring and morphological aspects when a bridge ...  Read More ...
Cold-Bonded Lightweight Synthetic Aggregate Involving High Reactive Attapulgite at Different Curing Conditions
Cold-Bonded Lightweight Synthetic Aggregate Involving High Reactive Attapulgite at Different Curing Conditions

Mohammed L. Abbas; Waleed A. Abbas

Volume 41, Issue 11 , November 2023, , Page 1252-1265

https://doi.org/10.30684/etj.2023.139775.1442

Abstract
  This study aimed to develop an eco-friendly, lightweight, and synthetic aggregate (SLA) based on clay suitable for use in structural lightweight concrete. The researchers utilized the ...  Read More ...
Uncracked Palm Kernel Shell Effect on Compressive Strength of Concrete
Uncracked Palm Kernel Shell Effect on Compressive Strength of Concrete

Chidiebere S. Ezenkwa; Thaddeus I. Elogu

Volume 41, Issue 11 , November 2023, , Page 1266-1273

https://doi.org/10.30684/etj.2023.140014.1460

Abstract
  In recent times, the production of concrete has become a significant concern due to the rapid population growth and the depletion of raw materials. In this research, we investigated ...  Read More ...
Elzaki Transform Method for Natural Frequency Analysis of Euler-Bernoulli Beams
Elzaki Transform Method for Natural Frequency Analysis of Euler-Bernoulli Beams

Charles C. Ike; Tarig M. Elzaki

Volume 41, Issue 11 , November 2023, , Page 1274-1285

https://doi.org/10.30684/etj.2023.140211.1456

Abstract
  Free vibration analysis of thin beams under dynamic excitation is important in design to prevent resonance failures that occur when the excitation frequency coincides with the natural ...  Read More ...
Free Vibration of Thin Beams on Winkler Foundations Using Generalized Integral Transform Method
Free Vibration of Thin Beams on Winkler Foundations Using Generalized Integral Transform Method

Charles C. Ike

Volume 41, Issue 11 , November 2023, , Page 1286-1297

https://doi.org/10.30684/etj.2023.140343.1462

Abstract
  The determination of free vibration frequencies of thin beams on Winkler foundations is important in their design to avoid resonant failures when the excitation frequency equals the ...  Read More ...
Enhancing Pullout Load Performance of Under-Reamed Piles in Homogeneous Layered Clay: A Numerical Comparative Study
Enhancing Pullout Load Performance of Under-Reamed Piles in Homogeneous Layered Clay: A Numerical Comparative Study

Anji A. Al-Bayati; Mohammed A. AL-Neami; Falah H. Rahil

Volume 41, Issue 11 , November 2023, , Page 1298-1308

https://doi.org/10.30684/etj.2023.140795.1474

Abstract
  A 3D numerical model generated using PLAXIS-3D software was used in the present research to predict the behavior of under-reamed piles under pullout loading conditions with presumed ...  Read More ...
Studying Characteristics and Strength of the Unsaturated Gypseous Soil with Various Saturation Degrees
Studying Characteristics and Strength of the Unsaturated Gypseous Soil with Various Saturation Degrees

Ahmed S. Abood; Mohammed Y. Fattah; Aqeel S. Al-Adili

Volume 41, Issue 11 , November 2023, , Page 1309-1324

https://doi.org/10.30684/etj.2023.140119.1453

Abstract
  The main objective of this study is to determine the appropriateness of unsaturated gypseous soil as a subgrade layer for carrying foundations. A comprehensive laboratory testing program ...  Read More ...
Studying the Possibility of Producing Paving Flags from Geopolymer Concrete Containing Local Wastes
Studying the Possibility of Producing Paving Flags from Geopolymer Concrete Containing Local Wastes

Nazar F. Al- Obeidy; Wasan I. Khalil

Volume 41, Issue 11 , November 2023, , Page 1325-1336

https://doi.org/10.30684/etj.2023.141321.1494

Abstract
  Geopolymer concrete is an inorganic composite material created by interacting alkaline substances with an aluminosilicate source and aggregate. Precast building units are considered ...  Read More ...
Some Properties of Sustainable Concrete with Rubber Waste Aggregate
Some Properties of Sustainable Concrete with Rubber Waste Aggregate

Rafid F. Motloq; Wasan I. Khalil; Eethar T. Dawood

Volume 41, Issue 11 , November 2023, , Page 1337-1345

https://doi.org/10.30684/etj.2023.140271.1458

Abstract
  The cumulative quantities of non-biodegradable solid tire waste, which are byproducts of transport vehicles, contribute to environmental pollution.. This study seeks to address this ...  Read More ...
A Proposed New Mix Proportioning Method for Fly Ash-Based Geopolymer Concrete
A Proposed New Mix Proportioning Method for Fly Ash-Based Geopolymer Concrete

Mazin A. Alhifadhi; Tareq S. Al-Attar; Qais A. Hasan

Volume 41, Issue 11 , November 2023, , Page 1346-1354

https://doi.org/10.30684/etj.2023.139354.1427

Abstract
  Global warming on planet Earth results from the high emission of greenhouse gases, especially CO2. The Portland cement industry releases high amounts of CO2 and is responsible for about ...  Read More ...
Stay in Place Formwork, Encased Reinforced Concrete Column: A Review
Stay in Place Formwork, Encased Reinforced Concrete Column: A Review

Zainab H. Abbas; Maan S. Hassan; Iqbal N. Gorgis

Volume 41, Issue 11 , November 2023, , Page 1355-1378

https://doi.org/10.30684/etj.2023.139421.1428

Abstract
  Formwork systems are required for almost all cast-in-place concrete construction. However, some forms cost too much, often exceeding 30% of the entire cost of the concrete construction. ...  Read More ...
Waste Rubber Pre-treatments and Their Effects on Compressive and Flexural Strength of Modified SIFCON
Waste Rubber Pre-treatments and Their Effects on Compressive and Flexural Strength of Modified SIFCON

Ali M. Alibraheem; Basil S. Al-Shathr

Volume 41, Issue 11 , November 2023, , Page 1379-1389

https://doi.org/10.30684/etj.2023.141759.1511

Abstract
  Slurry-infiltrated fiber concrete (SIFCON) is a comparatively new and unique steel fiber-reinforced concrete (FRC) form. SIFCON possesses many desirable characteristics, including high ...  Read More ...
A Static and Dynamic Analysis of A High-Speed Turbo Machine Foundation
A Static and Dynamic Analysis of A High-Speed Turbo Machine Foundation

Ameer A. Ahmed; Mohammed Y. Fattah; Makki K. Mohsen

Volume 41, Issue 11 , November 2023, , Page 1390-1402

https://doi.org/10.30684/etj.2023.142820.1547

Abstract
  The foundation plays a significant role in safe and efficient turbo machinery operation. Turbomachinery generates harmonic load on the foundation due to its high-speed rotating motion, ...  Read More ...
Single Variable Thick Plate Buckling Problems Using Double Finite Sine Transform Method
Single Variable Thick Plate Buckling Problems Using Double Finite Sine Transform Method

Charles Chinwuba Ike

Volume 41, Issue 11 , November 2023, , Page 1403-1413

https://doi.org/10.30684/etj.2023.142504.1537

Abstract
  This paper derives buckling solutions for single variable thick plate buckling problems using the double finite sine transform method (DFSTM). The problem governing partial differential ...  Read More ...