System based greenhouse emission analysis of off-site prefabrication: a comparative study of residential projects

Guo, Yufeng; Shi, Enhui; Yan, Rui; Wei, Wenchao

doi:10.1038/s41598-023-37782-x

Cited by 4 publications

(1 citation statement)

References 34 publications

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“…There are many ways to measure carbon emissions from buildings, with the most common being the carbon emissions factor (CEF) method. Many similar studies have applied the CEF method because of its clear measurement principles and simple data acquisition [55,56]. This method has been used for the study of carbon emissions from highway construction in Southwest China [57], the study of carbon emissions from highrise residential buildings in Tehran during the construction stage [58], and the study of carbon emissions from precast concrete panels during the materialization stage [45].…”

Section: Methodsmentioning

confidence: 99%

Reducing Carbon Emissions from Prefabricated Decoration: A Case Study of Residential Buildings in China

Bian,

Liu,

Zuo

et al. 2024

Buildings

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Since decoration is an essential part of buildings, the carbon emissions generated by decoration work should not be ignored. In recent years, prefabricated decoration has attracted much attention as efforts are made to pursue green, low-carbon, and waste-reducing buildings. However, research on carbon emissions assessment of prefabricated buildings has focused mainly on the structural aspect of prefabricated buildings, with few studies having considered prefabricated decoration. This study therefore focuses on assessing the carbon emissions of prefabricated decoration from the life cycle perspective of a case study residential building and explores the potential for reducing carbon emissions by decorating buildings with prefabricated components. The results show that using prefabricated decoration in the case study building reduced carbon emissions by 29.08% at the building material production stage compared to traditional decoration, and using an optimized design of prefabricated decoration, the building’s energy consumption over its design life could reduce carbon emissions by 1046 kgCO2/m2. These findings demonstrate the benefits of prefabrication decoration for reducing carbon emissions. This study provides decoration companies with robust data and insights to guide future decisions and practices, helping to transform and achieve the carbon neutrality goal for the building decoration industry.

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Section: Methodsmentioning

confidence: 99%

Reducing Carbon Emissions from Prefabricated Decoration: A Case Study of Residential Buildings in China

Bian,

Liu,

Zuo

et al. 2024

Buildings

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Ecofriendly solidification of sand using microbially induced calcium phosphate precipitation

Avramenko,

Nakashima,

Takano

et al. 2024

Sci Rep

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This study introduces microbiologically induced calcium phosphate precipitation (MICPP) as a novel and environmentally sustainable method of soil stabilization. Using Limosilactobacillus sp., especially NBRC 14511 and fish bone solution (FBS) extracted from Tuna fish bones, the study was aimed at testing the feasibility of calcium phosphate compounds (CPCs) deposition and sand stabilization. Dynamic changes in pH and calcium ion (Ca2+) concentration during the precipitation experiments affected the precipitation and sequential conversion of dicalcium phosphate dihydrate (DCPD) to hydroxyapatite (HAp), which was confirmed by XRD and SEM analysis. Sand solidification experiments demonstrated improvements in unconfined compressive strength (UCS), especially at higher Urea/Ca2+ ratios. The UCS values obtained were 10.35 MPa at a ratio of 2.0, 3.34 MPa at a ratio of 1.0, and 0.43 MPa at a ratio of 0.5, highlighting the advantages of MICPP over traditional methods. Microstructural analysis further clarified the mineral composition, demonstrating the potential of MICPP in environmentally friendly soil engineering. The study highlights the promise of MICPP for sustainable soil stabilization, offering improved mechanical properties and reducing environmental impact, paving the way for novel geotechnical practices.

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Analyzing resilience influencing factors in the prefabricated building supply chain based on SEM-SD methodology

Lin,

Ren,

Feng

et al. 2024

Sci Rep

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The supply chain for prefabricated buildings (PB) currently grapples with pressing challenges. In order to ensure the safe and stable development of the prefabricated building supply chains (PBSC), this study aims to identify the key factors and internal mechanisms affecting the PBSC, and propose a supply chain resilience enhancement mechanism, so as to promote the sustainable development of the PB industry. The study combined a literature review and survey data to identify key resilience factors in PBSC. A Structural Equation Model (SEM) was used to explore the relationships between these factors. System dynamics were applied to create a simulation model, assessing the resilience impact level and conducting sensitivity analysis. The results show that the transportation and procurement processes are the most significant factors influencing supply chain resilience. The external environmental factors wielded a more pronounced impact on the overall evaluation of supply chain resilience than the delivery and use processes, but delivery and use processes are more sensitive. The study uses the Pressure-State-Response (PSR) model to suggest strategies for enhancing supply chain resilience. This study contributes to more sustainable and efficient construction practices by offering an innovative theoretical framework to analyze the factors influencing PBSC resilience and proposing enhancement strategies.

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System based greenhouse emission analysis of off-site prefabrication: a comparative study of residential projects

Cited by 4 publications

References 34 publications

Reducing Carbon Emissions from Prefabricated Decoration: A Case Study of Residential Buildings in China

Reducing Carbon Emissions from Prefabricated Decoration: A Case Study of Residential Buildings in China

Ecofriendly solidification of sand using microbially induced calcium phosphate precipitation

Analyzing resilience influencing factors in the prefabricated building supply chain based on SEM-SD methodology

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