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With the acceleration of urbanization in recent years, China has witnessed large-scale construction across its provinces, generating massive amounts of construction waste that pose challenges to environmental protection and sustainable development. This study evaluated the impact of construction waste policy intensity on its environmental efficiency. Firstly, the content analysis method was used to analyze the construction waste policy text quantitatively. Second, this study constructed a slack-based measure (SBM) model based on data envelopment analysis (DEA), considering resource input and construction waste output to measure environmental efficiency. Finally, we built and tested an econometric model of how policies affect environmental efficiency using the system generalized method of moments (SYS-GMM). The findings indicate a non-linear U-shaped link between policy intensity and environmental efficiency. Among all five control variables, population density, urbanization level, and technological innovation enhance environmental efficiency, while economic development and highway density will lower it. This study advances the research on construction waste policies and offers some insights for the construction industry to pursue sustainable development.
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http://dx.doi.org/10.1007/s11356-024-32581-x | DOI Listing |
Environ Res
September 2025
China Construction Fourth Engineering Bureau Fifth Construction Engineering Co., Ltd. Nanxin Road, Nanshan District, Shenzhen, 518000, China. Electronic address:
The production of phosphogypsum (PG), calcium carbide slag (CS), and red mud (RM) in global industrial development imposes serious environmental issues. Utilizing CS and PG as curing agents and incorporating RM as a soil substitute can facilitate the solid waste resource utilization. However, few studies have investigated the synergistic effects of PG and CS on the stabilization of RM and soil.
View Article and Find Full Text PDFJ Environ Manage
September 2025
Interdisciplinary Research Center for Construction and Building Materials, Department of Materials Science and Engineering, King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia.
The disposal of municipal solid waste incineration fly ashes (MSWI-FA) is complicated by soluble chlorides, which increase the risk of heavy metals (HMs) leaching toxicity and hinder the further use of remediated MSWI-FA. In this study, the self-assembly potentiality of magnesium oxychloride cement (MOC) in geopolymerization was explored and utilized to enhance the solidification/stabilization (S/S) of the MSWI-FA. The MOC-self-assembled geopolymerization kinetics can be suitably described by the JMAK model.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
September 2025
Civil and Environmental Engineering Department, King Fahd University of Petroleum & Minerals, 31261, Dhahran, Saudi Arabia.
Concrete production significantly contributes to CO emissions and depletion of natural resources, leading to substantial environmental concerns. The integration of polymers into concrete has emerged as a promising innovative solution aimed at overcoming inherent limitations of traditional concrete, including brittleness, susceptibility to tracking, environmental degradation, and substantial ecological impacts. This systematic review thoroughly investigates the properties, sustainability implications, and practical challenges associated with polymer-based concrete (PBC), particularly focusing on polymer concrete composites (PCC) and polymer-modified concrete (PMC) detailing their composition, mechanical behavior, and durability.
View Article and Find Full Text PDFInt J Cardiol
September 2025
Institute of Sports Medicine and Science, National Italian Olympic Committee, Largo Piero Gabrielli, 1, 00197 Rome, Italy. Electronic address:
Introduction: Endurance athletes are expected to present a cardiac remodeling characterized by eccentric hypertrophy. Differentiation from underlying cardiomyopathy mimicking a similar cardiac remodeling may be challenging. Myocardial work indexes (MWI) have been shown to be useful in distinguishing between physiological adaption and pathological changes in the athletes' heart.
View Article and Find Full Text PDFJ Am Chem Soc
September 2025
Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.
Cross-electrophile coupling (XEC) reactions are considered to be among the most fundamental construction of carbon-carbon bonds in organic chemistry. Traditionally, stoichiometric reductants, including metallic and organic reagents, are required to promote these conversions, resulting in significant waste that contributes to environmental pollution and increased disposal costs. In this study, we report a divided electrochemical synthesis-based cross-coupling platform in which HO is oxidized at the anode surface to generate electrons that produce a lower oxidation state nickel catalyst on the cathode surface, enabling XEC reactions without the need for metallic or organic reagents.
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