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Diagnosis of pathological manifestations in popular housing of COHAB in Caruaru, Pernambuco: a forensic approach

Journal of Building Pathology and Rehabilitation 2025年第1期10卷 1-17页

作者： Lima Júnior, Humberto Correia da Silva Medeiros, Iálysson Barbosa, Felipe Augusto Almeida de Lima, Douglas Mateus Graduate Program in Civil and Environmental Engineering Technology Center Academic Center of Agreste Federal University of Pernambuco Marielle Franco Avenue Nova Caruaru Pernambuco Caruaru 55014-900 Brazil

The construction of Social Interest Housing through housing programs is a crucial government investment aimed at reducing housing deficits and ensuring housing rights for low-income populations. However, despite driving the growth of the construction industry, historically these constructions have faced pathological manifestations. The term "pathology" in this context refers to defects, non-conformities, and failures in constructions. Thus, this study is aimed at examining the pathological manifestations in social interest housing provided by the Popular Housing Company (COHAB-PE), focusing on popular residences built with subsidies targeted at housing programs in Caruaru, in the rural area of Pernambuco. The study, classified as exploratory and documentary following technical procedures, aims to analyze and identify recurring patterns of structural problems in popular housing. This was carried out through the analysis of 36 residences located in Caruaru, all of residential nature. The results underscore the need to investigate such issues, highlighting anomalies mostly related to construction errors, such as the lack of appropriate structural elements and waterproofing in foundations. The proposed technical solutions aim to ensure residents' safety. The lack of compliance with standards and the recurrence of the same problems over time and across different construction companies indicate a systemic failure in construction methods. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2025.

关键词： Construction flaws Expert reports Social interest housing Structural anomalies Technical solutions

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Application of Iron Mine Waste Rock as an Innovative Cement Replacement Material in Mortar 1st

Application of Iron Mine Waste Rock as an Innovative Cement ...

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1st International Conference on Net-Zero Built Environment: Innovations in Materials, Structures, and Management Practices, NTZR 2024

作者： Cezar, Bruna Figueiredo da Silva Magalhães, Margareth Pimenta, André Rocha Post-Graduate Program in Civil Engineering State University of Rio de Janeiro Rio de Janeiro Brazil Instrumentation and Computational Simulation Laboratory Federal Institute of Rio de Janeiro Rio de Janeiro Brazil

ISBN: (纸本)9783031696251

In recent decades, the world has experienced a surge in extreme environmental events, exacerbated by the ongoing impacts of climate change. Substantial research underscores the role of anthropogenic CO2 emissions as the primary driver behind climate change and global warming. Cement production, constituting roughly 7% of global anthropogenic CO2 emissions, stands as a significant contributor to this issue. Consequently, there has been a growing focus on mitigation strategies within the cement industry, particularly emphasizing the utilization of mineral admixtures. An innovative yet underexplored material for partial cement replacement is iron mining waste rock, a by-product of open-pit mining operations used to extract iron ore deposits. Unlike underground mining, open-pit methods generate larger volumes of waste rock, typically stored in substantial geotechnical structures like piles, pits, or dams. This study conducted physical–chemical, mineralogical, and morphological characterizations on iron mine waste rock. Subsequently, four mortar mixtures were formulated, integrating iron mine waste as a partial substitute for cement (up to 30% by mass), and compared against a reference mortar. The performance assessment encompassed evaluations of fresh mortar properties, compressive strength, and elastic modulus. Findings revealed that the waste rock demonstrates limited pozzolanic activity, primarily functioning as a filler, and its inclusion in mortar enhances the workability of the mixes. However, a marginal reduction in compressive strength (up to 15%) was observed in mortar mixtures where 30% of the cement was replaced by waste rock. © The Author(s) 2025.

关键词： Open pit mining

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Impact of climate change on rainfall erosivity in the Amazon and Cerrado biomes under CMIP6 scenarios

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Journal of Sedimentary Environments 2025年 1-16页

作者： de Mendonça, Leonardo Melo Blanco, Claudio Cruz, Josias da Silva Post-Graduation Program of Civil Engineering Federal University of Pará-PPGEC/ITEC/UFPA Belém Brazil School of Environmental and Sanitary Engineering Federal University of Pará-FAESA/ITEC/UFPA Belém Brazil

The objective of this work is to investigate the impact of Global Warming on the rainfall erosivity factor (R-Factor) in the Amazon and Cerrado biomes, regions with high agricultural productivity in Brazil. Thus, the mean monthly rainfall projected under two climate change scenarios (SSP2-4.5—intermediate and SSP5-8.5—most pessimistic) was used, based on the Multi-Model Ensemble comprising thirty-two Global Climate Models from the Coupled Model Intercomparison Project Phase 6. The simulations are post-processed using the Bias-Correction Spatial Disaggregation statistical downscaling method, with 0.25° × 0.25° spatial resolution. Linear Scaling was applied to correct systematic biases, based on the Climate Hazards Center InfraRed Precipitation with Station Data Version 2.0 and the reference period from 1981 to 2010. The monthly R-Factor was estimated using seven previously calibrated statistical models. The estimated values showed Kling-Gupta Efficiency ranging from 0.687 to 0.866, which are considered satisfactory. The reference monthly R-Factors ranged from 0 to 4140 MJ mm h⁻1 ha⁻1 month⁻1, while the reference annual R-Factor ranged from 5580 to 25,200 MJ mm h⁻1 ha⁻1 year⁻1, predominantly classified as very strong. Projected changes in the annual R-Factor until 2100 varied from − 2617 to 81 MJ mm h⁻1 ha⁻1 year⁻1 in the intermediate scenario, and from − 5564 to – 313 MJ mm h⁻1 ha⁻1 year⁻1 in the most pessimistic scenario. The Northern and Central regions of the Amazon exhibit the most intense rates of change in the annual R-Factor. However, the annual R-Factor class remains predominantly very strong under both analyzed scenarios.

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Structural performance of direct foundations of onshore wind turbine towers considering SSI: A literature review

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Renewable and Sustainable Energy Reviews 2025年 217卷

作者： Medeiros, Iálysson da Silva de Lima, Douglas Mateus Graduate Program of Civil and Environmental Engineering Academic Center of Agreste Federal University of Pernambuco Marielle Franco Avenue New Caruaru Pernambuco Caruaru55014-900 Brazil

The exponential increase in the construction of energy generation systems using wind turbines has driven the need for taller towers in search of stronger winds, resulting in challenges for the development of structural solutions. This paper presents a comprehensive literature review on advancements in the modeling and design of direct foundations for wind turbine towers, emphasizing the importance of soil–structure interaction (SSI). The review covers three-dimensional models developed to analyze the impact of SSI, as well as the optimization of designs considering deflections and structural requirements. The main goal of the paper is to provide detailed insights to serve as a starting point for further research on direct foundations for wind turbine towers. Structural model analysis and the use of methods such as Finite Element Analysis (FEA) have revealed significant variations in the effectiveness of foundations, depending on geometry and soil characteristics. The results highlight the importance of considering SSI for an accurate representation of the overall structural response. In the design and enhancement of wind structures, critical factors such as displacements and stresses must be considered when evaluating the interactions between the structure and the soil. Integrating these design considerations into the improvement of foundations is essential to ensure the safety and efficiency of these structures, meeting the growing demands of the industry and promoting sustainability in wind energy generation. Thus, this research makes a significant contribution to the understanding and advancement of engineering practices for wind turbine tower foundations, establishing an important starting point for future investigations. © 2025 Elsevier Ltd

关键词： Windmill

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Decade-long performance of constructed wetlands in the dairy industry following an aerated facultative pond

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Chemosphere 2025年 376卷 144271页

作者： Vieira de Mendonça, Henrique Carvalho, Camila da Motta de Costa, Anderson Gomide Ribas, Maria Clara Euriques, Jorge Felipe Post-graduate Program in Agricultural and Environmental Engineering / Institute of Technology / Engineering Department Federal Rural University of Rio de Janeiro Campus Seropédica Seropédica RJ Rio de Janeiro23890-000 Brazil

Long-term data are essential for decision-making in the operation of constructed wetlands;however, such data are scarce. In the present study, a subsurface flow CW system was monitored over a 10-year period for the treatment of wastewater from the dairy industry. Prior to the CW, an aerated facultative lagoon was operated, and its data were also included in the study. The integration of both natural treatment systems (Lagoon + CW) revealed synergy in the combined removal of pollutants and nutrients. Up until the seventh year of operation, the integration of the systems removed more than 98% of COD, BOD5, and TSS, as well as 99.8%, 96.5%, and 71.3% of oils and greases, ammoniacal nitrogen, and total phosphorus, respectively. Surfactants, oils, and greases were entirely removed. The presence of significant clogging and surface flow from the seventh year onwards led to a reduction in treatment efficiency, indicating that this is the maximum recommended operating time for CWs following an aerated facultative lagoon in the dairy industry. After this period, all substrates should be replaced. © 2025 Elsevier Ltd

关键词： Agroindustry Brachiaria environmental control Pollutant removal Synergy

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Partitioning Uncertainty from Climate Change Inputs on Streamflow Projections in the Bicol River Basin, Philippines

SSRN

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SSRN 2025年

作者： Bañares, Ernie Nograles Mehboob, Muhammad Shafqat Panda, Manas Ranjan Engineering Graduate Program School of Engineering University of San Carlos Cebu City6000 Philippines College of Engineering and Architecture Sorsogon State University Sorsogon City4700 Philippines Department of Civil Engineering School of Engineering University of San Carlos Cebu City6000 Philippines Department of Civil & Environmental Engineering Yonsei University Seoul Korea Republic of

Increasing threats to global water resources from climate change emphasize the importance of comprehending its impacts on hydrology for effective water management. This article quantifies climate input uncertainty in streamflow projections for the Libmanan-Pulantuna Watershed (LPW) in the Bicol River Basin, Philippines. Using the Water Evaluation and Planning (WEAP) model, we simulated streamflow based on future climate projections (FCPs) from Intergovernmental Panel on Climate Change (IPCC) greenhouse-gas emission scenarios, utilizing Coupled Model Intercomparison Project phases 5 (CMIP5) and 6 (CMIP6) datasets. Four Global Circulation Models (GCMs) and three bias correction techniques (Linear Scaling, Quantile Mapping, and Detrended Quantile Mapping) were applied. Results showed significant differences between the CMIP datasets, with raw CMIP6 better capturing historical climate patterns. Bias correction methods reduced projection biases in precipitation and air temperatures. Projections revealed increasing low flows and decreasing high flows, especially under high-emission scenarios, worsening water shortages during critical periods. Analysis of Variance (ANOVA) showed that climate models were a major source of uncertainty in hydrological projections. Combined FCPs and GCMs contributed to 50%-75% of total uncertainty across flow percentiles and future periods (near-future, mid-future, far-future). These findings underscore the importance of careful model selection and effective bias correction for reliable hydrological projections, crucial for water management strategies in areas like the Bicol River Basin, where water resources are essential for communities and ecosystems. © 2025, The Authors. All rights reserved.

关键词： Rivers

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Antioxidant system alterations and oxidative stress caused by polyfluoroalkyl substances (PFAS) in exposed biota: a review

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Science of the Total Environment 2025年 977卷 179395页

作者： Soares, Lorena Oliveira Souza de Araujo, Gabriel Farias Gomes, Thais Braga Júnior, Sidney Fernandes Sales Cuprys, Agnieszka Katarzyna Soares, Raquel Moraes Saggioro, Enrico Mendes Laboratory of Environmental Health Assessment and Promotion Oswaldo Cruz Institute Oswaldo Cruz Foundation Av. Brasil 4365 RJ Rio de Janeiro21045-900 Brazil Post-Graduate Program in Public Health and Environment Sergio Arouca National School of Public Health Oswaldo Cruz Foundation Av. Leopoldo Bulhões 1480 RJ Rio de Janeiro21041-210 Brazil Faculty of Science and Technology Norwegian University of Life Sciences P.O. Box 5003 Ås1432 Norway Post-Graduate Program in Environmental Technology and Water Resources Department of Civil and Environmental Engineering – FT University of Brasília Darcy Ribeiro Campus Via L3 Norte DF Brasília70910-900 Brazil

Contamination of aquatic and terrestrial organisms by Perfluoroalkyl substances (PFAS), emerging contaminants, is widespread, as these compounds are present in water, soil, air, and food, owing to their environmental persistence. PFAS exposure induces biochemical process alterations associated with the disruption of the antioxidant defense system in several species. This review aims to discuss how PFAS-induced antioxidant system alterations lead to changes in biochemical processes in different organisms exposed to these pollutants. This disruption, then leads to an imbalance in antioxidant defense systems, contributing to the formation of reactive oxidative species (ROS), which, in turn, can be exacerbate oxidative stress, induce cellular damage, enhance lipid peroxidation, destabilize lysosomal membranes, and cause genotoxic effects, ultimately compromising DNA integrity. In acute tests, PFAS have led to mortality, growth inhibition, diminished behavioral and locomotor abilities, and reproductive impairment. PFAS-induced effects differ with varying species or types of substances, and further bioaccumulation through food chains exacerbates environmental contamination, carrying considerable risks. These findings demonstrate the complex and enduring impact of PFAS on environmental health, emphasizing the importance of this review in corroborating studies on sub-lethal toxicity in exposed organisms and how these effects reflect on the environment. © 2025 Elsevier B.V.

关键词： Biotic

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The fate of antibiotics during phosphate recovery processes - A critical review

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Science of the Total Environment 2025年 968卷 178829页

作者： Bolujoko, Nathaniel Duling, Addison Shashvatt, Utsav Mangalgiri, Kiranmayi Environmental Science Graduate Program Oklahoma State University 202 Whitehurst StillwaterOK74078 United States Department of Biosystems and Agricultural Engineering Oklahoma State University 215A Agricultural Hall StillwaterOK74078 United States Department of Civil and Environmental Engineering University of California Berkeley 760 Davis Hall BerkeleyCA94720 United States

The principles of circular economy encourage the recovery of phosphorus from nutrient-rich waste streams such as animal manure, domestic wastewater, and urine to supplement existing sources of raw phosphorus. However, these waste streams also contain a wide variety of contaminants of emerging concern including antibiotics, and the recovery of phosphorus from these waste streams results in the co-occurrence of antibiotics with the recovered phosphorus products. This paper provides a comprehensive overview of the fate of environmentally relevant antibiotics in three major existing and upcoming phosphorus recovery processes: precipitation-, membrane-, and adsorption-based treatment. In general, the co-occurrence of antibiotics in recovered phosphorus increases with the presence of dissolved organic matter (DOM) and cations due to π-π interaction and cationic bridge formation, respectively. Additionally, antibiotics display pH-based speciation resulting in electrostatic interactions with recovered phosphorus at pH > 7.0. Furthermore, this critical review establishes a new metric, the relative antibiotic-to‑phosphorus (RAP), defined as the ratio of the concentration of antibiotics to phosphorus in recovered phosphorus to that of the phosphorus-rich waste. Precipitation-based methods, particularly struvite, demonstrated the lowest RAP, while the RAP in carbon-based adsorbents was 1.8 × 108 times higher than in membrane-based processes. In reviewing literature on the fate of antibiotics in phosphorus recovery processes, several research needs are also highlighted: the fate of non-tetracycline antibiotics, simultaneous investigation of phosphorus and antibiotic fate in membrane- and adsorption-based methods, treatment methods to mitigate the co-occurrence of antibiotics in recovered phosphorus product, and the release of antibiotics from recovered phosphate products. © 2024

关键词： Rivers

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Statistical trend characteristics of rainfall over Kerala, India evaluated through analysing modern era retrospective analysis for research and applications (MERRA-2) reanalysis data

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Bulletin of Atmospheric Science and Technology 2025年第1期6卷 1-38页

作者： Modon Valappil, Ninu Krishnan de Oliveira Júnior, José Francisco Mendes, David Jamjareegulgarn, Punyawi Hamza, Vijith Environmental Technology Division School of Industrial Technology Universiti Sains Malaysia Pulau Pinang 11800 Malaysia Laboratory of Applied Meteorology and Environment (LAMMA) Institute of Atmospheric Sciences (ICAT) Federal University of Alagoas (UFAL) LourivalMeloMota avenue S/N Alagoas Tabuleiro dos Martins Maceió CEP: 57072-970 Brazil Post-Graduate Program in Aerospace Engineering – PPGEA Federal University of Rio Grande do Norte – UFRN Campus Universitário Lagoa Nova RN Natal Brazil Prince of Chumphon Campus King Mongkut’s Institute of Technology Ladkrabang Chumphon 86160 Thailand Kerala State Disaster Management Authority Kerala Thiruvananthapuram 695033 India

Statistical trends of rainfall (annual and seasonal rainfalls) in Kerala, India were characterised using the 44-years (1980–2023) data of Modern-Era Retrospective Analysis for Research and Applications (MERRA) version 2. Monthly rainfall data were collected from the selected fifty locations which represent the state as a whole, and the collected data were then categorised into annual as well as seasonal (winter, summer, monsoon and post-monsoon) datasets based on the classification proposed by Indian Meteorological Organisation (IMD). Lag-1 autocorrelation, modified Mann Kendall (mMK), Pettitt test and Theil-Sen’s slope methods were used to determine the statistical characteristics of rainfalls in Kerala. Mean rainfalls were 3124 mm, 66 mm, 527 mm, 1667 mm and 862 mm, respectively, for annual, winter, summer, monsoon and post-monsoon periods. mMK based statistical trend analysis revealed an overall decreasing trend characteristics in annual (-0.54 mm.y⁻¹), monsoon (-1.20 mm.y⁻¹), and post-monsoon (-0.93 mm.y⁻¹) seasons whereas winter and summer rainfalls showed an increasing trend (0.67 mm.y⁻¹ and 3.40 mm.y⁻¹, respectively) for the state as a single unit. Pettitt test indicated four dominant periods of change in rainfall characteristics in the study area that spanned over the decades of 1980, 1990, 2000 and 2010, in which major changes in annual and seasonal rainfalls were occurred during 1990’s, 2000’s and 2010’s. Theil-Sen’s slope-based estimation of rate of change in rainfall showed an average variation of -4.33 mm.y⁻¹, 0.17 mm.y⁻¹, 6.27 mm.y⁻¹, -6.54 mm.y⁻¹ and − 3.28 mm.y⁻¹ for annual, winter, summer, monsoon and post-monsoon seasons, respectively. Though the winter and summer rainfalls showed an increase in its rate during the period of analysis, annual rainfall showed an overall reduction in the amount of rainfall received in the state. The study ulti

关键词： MERRA-2 Modified Mann Kendall Period of change Rainfall variation Spatial statistics

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Improving the Performance of Asphalt Mixtures with Highly Acidic Aggregates in Central Vietnam Using Modifier Based on Styrene-Butadiene-Styrene and Rosin Resin

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Journal of Materials in civil engineering 2025年第7期37卷

作者： Nguyen, Lan Ngoc Lee, Hosin David Bui, Lam Tung Kim, Young-Ik Truong, Van Quyet Nguyen, May Huu Nguyen, Du Van Dept. of Construction Materials Faculty of Construction Engineering Univ. of Transport and Communications No. 03 Cau Giay Hanoi100000 Viet Nam Dept. of Civil and Environmental Engineering Iowa Technology Institute The Univ. of Iowa Iowa CityIA52242 United States Research Dept. Hansoo Natech Co. Ltd. 6-20 Yuseong-daero 1205beon-gil Yuseong-gu Daejeon34104 Korea Republic of Civil and Environmental Engineering Program Graduate School of Advanced Science and Engineering Hiroshima Univ. 1-4-1 Kagamiyama Higashi-Hiroshima Hiroshima739-8527 Japan Faculty of Civil Engineering Univ. of Transport and Communications Campus in Ho Chi Minh City Ho Chi Minh City700000 Viet Nam

In Central Vietnam, the aggregate typically originates from highly acidic rocks containing a significant amount of silicon dioxide (SiO2), leading to poor adhesion quality with virgin asphalt binder. Hence, the asphalt mixture production usually needs to utilize adhesion promoters. Based on the chemical compositions of the sample aggregate (up to 72.3% SiO2), research has been conducted to introduce an adhesive agent called rubber modified compound (RMC-160), which is composed of styrene-butadiene-styrene (SBS) with petroleum hydrocarbon resin, treated clay and mineral oil. This article presents the research findings regarding the adhesion effectiveness of RMC-160-modified asphalt binder to high acid-based aggregate through laboratory and field tests, along with the mixture performance under both short-term oven aging (STOA) and long-term oven aging (LTOA). The test results exhibited remarkable effects, whereby the asphalt binder modified with RMC-160 additive significantly increased the adhesion level from Grade 2 to Grade 4, and the asphalt mixtures containing RMC-160 had lower rutting and higher cracking tolerance (CTIndex) under both the STOA and LTOA conditions. © 2025 American Society of civil Engineers.

关键词： Silicon oxides

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