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

Charles Chinwuba Ike

Volume 42, Issue 5 , May 2024, Page 446-459

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 ...
Research Paper
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

Volume 42, Issue 5 , May 2024, Page 460-471

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 ...
Research Paper
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

Volume 42, Issue 5 , May 2024, Page 472-484

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 ...
Research Paper
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

Volume 42, Issue 5 , May 2024, Page 485-492

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 ...
Research Paper
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

Volume 42, Issue 5 , May 2024, Page 493-504

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 ...
Research Paper
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

Volume 42, Issue 5 , May 2024, Page 505-515

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 ...
Research Paper
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

Volume 42, Issue 5 , May 2024, Page 516-524

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 ...
Research Paper
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

Volume 42, Issue 5 , May 2024, Page 525-539

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 ...
Research Paper
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

Volume 42, Issue 5 , May 2024, Page 540-547

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 ...
Research Paper
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

Volume 42, Issue 5 , May 2024, Page 548-556

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 ...
Research Paper
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

Volume 42, Issue 5 , May 2024, Page 557-568

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 ...
Research Paper
Comparison of locally manufactured composite tile adhesive using waste material with imported tile adhesive
Comparison of locally manufactured composite tile adhesive using waste material with imported tile adhesive

Samer K. turki; Sarmad I. Ibrahim; Mohammed H.D. Al Maamorib

Volume 42, Issue 5 , May 2024, Page 569-581

https://doi.org/10.30684/etj.2023.141789.1593

Abstract
  One of the most important construction activities worldwide is the construction using autoclaved aerated concrete units at the global level is increasing significantly and the use of ...  Read More ...
Research Paper
Design of waste stabilisation ponds for municipal effluent treatment in Sobi cantonment, Ilorin, Nigeria
Design of waste stabilisation ponds for municipal effluent treatment in Sobi cantonment, Ilorin, Nigeria

Francis James Ogbozige

Volume 42, Issue 5 , May 2024, Page 582-592

https://doi.org/10.30684/etj.2024.146992.1698

Abstract
  The generation of wastewater or effluent is unavoidable as long as humans exist, and it could cause potential danger if not properly managed. One way to manage it is by ensuring proper ...  Read More ...
Research Paper
Dynamic displacement of sheet pile walls adjacent to the railway track
Dynamic displacement of sheet pile walls adjacent to the railway track

Kather A. Naji; Mohammed A. Al-Neami; Mahmood R. Mahmood

Volume 42, Issue 5 , May 2024, Page 593-603

https://doi.org/10.30684/etj.2024.147388.1709

Abstract
  Due to the scarcity of experimental laboratory research on the effect of repetitive stress resulting from the railway on retaining walls, this study presents an investigation of an ...  Read More ...
Research Paper
Assessing the influence of climate change on sediment dynamics in the proposed makhool dam reservoir, Iraq
Assessing the influence of climate change on sediment dynamics in the proposed makhool dam reservoir, Iraq

Nisreen J. Rasheed; Mahmoud S. Al-Khafaji; Imzahim A. Alwan

Volume 42, Issue 5 , May 2024, Page 604-614

https://doi.org/10.30684/etj.2024.146620.1690

Abstract
  Makhool Dam is a proposed structure on the Tigris River in the Salah al-Din Governorate, northwest of Baiji. The reservoir's sediment sources encompass the Tigris River, the Greater ...  Read More ...