by Parfait Koua-Mbani  , Mathieu Liassa Nkoy  and Franck Moukanda Mbango

Received: 26 May 2026;  Published: 29 October 2026;  doi: 10.21926/aeer.2604037

Structural stability assessment of compact hydraulic structures operating under ultra-low hydraulic head conditions (

by Arjan Fakhrulddin Abdullah  , Inas Mahmood Ahmed  , Nabaz Yassen Ezuldin  and Zainab Al-Khafaji

Received: 04 April 2026;  Published: 28 October 2026;  doi: 10.21926/aeer.2604036

In this work, the effect of steel, nylon and hybrid steel-nylon fibers on the fresh, mechanical and structural flexural behavior of self-compacting concrete (SCC) containing 11% silica fume as a supplemental cementitious material has been experimentally investigated. Ten mixes were studied, one reference SCC without reinforcement and nine fiber-reinforced composites with steel, nylon, or hybrid steel-nylon fibers at volume fractions of 0.2%, 0.3% and 0.4%. The fresh state response was characterized in terms of slum [...]

by Rupesh Kumar Gupta  , Yash Kumar Tiwari  , Arpit Gupta  , Grinedge Yadav  and Swati Gupta

Received: 01 August 2026;  Published: 23 October 2026;  doi: 10.21926/aeer.2604035

Rapid urban growth transforms land cover and alters surface thermal conditions, especially in fast-changing tropical coastal cities. This study examines the spatial and temporal relationships among land-use/land-cover (LULC) transformation, land surface temperature (LST), relative thermal stress, and nighttime illumination in Chennai, India. Landsat observations for 2005, 2015, and 2025 were processed in Google Earth Engine to derive LULC for 2005 and 2025 and seasonal LST and Urban Thermal Field Variance Index (UT [...]

by Amine Azzouzi  , Rachid Et-Tanteny  , Imad Manssouri  , Aboubakr Bouayad  , Tajeddine Manssouri  and Houssame Limami

Received: 02 July 2026;  Published: 22 October 2026;  doi: 10.21926/aeer.2604034

This article investigates the effects of incorporating recycled plant fibers into raw clay bricks to evaluate the resulting changes in their mechanical and thermophysical properties. The clay used, an illite type (confirmed by its potassium oxide (K2O) content), originates from the Ifrane region of Morocco and has a high silica (SiO2) content, making it a suitable building material. Different levels of recycled plant fiber incorporation, from 0% to 20% (0%, 1%, 3%, 7%, 15%, and 20% by weight), were studied. The add [...]

by Yohannes Shuka Jara  and Mekonnen Abera Anbesa

Received: 25 January 2026;  Published: 19 October 2026;  doi: 10.21926/aeer.2604033

Today, the global community is facing significant environmental challenges due to widespread pollution entering ecosystems, such as toxic dyes in water bodies. This global issue requires environmentally conscious approaches and the development of innovative, eco-friendly and affordable solutions. In this study, activated carbon (AC) derived from Vernonia amygdalina stem bark (VA) was prepared by the chemical activation method as an efficient biosorbent for the removal of methylene blue (MB) from the water system. T [...]

by Tamru Tesseme Aragaw  , Kidest Tadesse  , Yoseph Kebede  , Rahel Kaba  and Tarun Kumar Lohani

Received: 06 April 2026;  Published: 28 September 2026;  doi: 10.21926/aeer.2603032

The research aimed to assess the urban water, sanitation, and hygiene (WASH) systems enabling environment in ten selected Ethiopian secondary cities. It comprises Adama, Bahir Dar, Bishoftu, Dessie, Dire Dawa, Harar, Hawassa, Kombolcha, Mekelle, and Shashemene cities. The study used a two-phase assessment, integrating the USAID Urban WASH Activity with the modified WASH Systems Building Blocks Framework adapted from the Sustainable Services Initiative (SSI), Agenda for Change (AfC). A cross-sectional mixed-methods [...]

by Attidiyage Don Shashika Iresh  , Bandunee C.L. Athapattu  , W.C.D. Kumari Fernando  , Jayantha T.B. Obeysekera  and Upaka Rathnayake

Received: 15 June 2026;  Published: 11 September 2026;  doi: 10.21926/aeer.2603031

This study developed future regional Intensity-Duration-Frequency curves for Sri Lanka using climate change scenarios to address the growing need for adaptive infrastructure planning. Rainfall projections were generated with the CNRM-CM6-1 global climate model under Shared Socioeconomic Pathways (SSP) for moderate (SSP2-4.5) and high (SSP5-8.5) emissions. These projections were bias-corrected using a linear scaling method and analyzed across eleven hydro-meteorologically homogeneous regions. IDF curves were constru [...]

by Alejandro Valencia-Arias  , Jorge Eugenio Cabrejos Barriga  and Cesar Alberto García Espinoza

Received: 04 February 2026;  Published: 31 August 2026;  doi: 10.21926/aeer.2603030

The presence of arsenic in groundwater poses a significant threat to public health, particularly in rural areas lacking access to treatment technologies. In Mórrope, concentrations exceeding regulatory limits have been detected, necessitating sustainable solutions. The objective of this study was to evaluate the efficiency of sugarcane bagasse as a biosorbent material for removing arsenic from contaminated waters in the Mórrope-Lambayeque district. The experimental design employed a 2 × 3 × 3 factorial design, enco [...]

by Vinayak Kaushal  , Dipro Biswas  and Amey Kashyap

Received: 30 May 2026;  Published: 27 August 2026;  doi: 10.21926/aeer.2603029

Amid accelerating Arctic warming-occurring at nearly four times the global rate-cold-region infrastructure faces escalating risks from permafrost thaw, sea-level rise, and compound climate stressors. This study presents a 25-year (2001-2026) review combining bibliometric analysis with a six-nation comparative synthesis to evaluate infrastructure vulnerability, engineering adaptation strategies, and policy implementation gaps. A dataset of 1,077 Web of Science records is analyzed using VOSviewer to map thematic evol [...]

by Vinayak Kaushal  and Allison Pham

Received: 31 December 2025;  Published: 20 August 2026;  doi: 10.21926/aeer.2603028

Sustainable construction practices and robust waste management strategies provide a viable pathway to mitigate these challenges. By integrating resource-efficient design, circular economy principles, and environmentally responsible technologies, the industry can significantly reduce its ecological burden. This paper presents a synthesis of environmental impacts from construction and a practical playbook of interventions spanning design, delivery, operations, and end-of-life. The study is organized as a systems guid [...]