Critical factors influencing carbon emissions of prefabricated building supply chains in China

Du, Qiang; Pang, Qiaoyu; Bao, Tana; Guo, Xiqian; Deng, Yunge

doi:10.1016/j.jclepro.2020.124398

Cited by 65 publications

(31 citation statements)

References 71 publications

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“…The willingness of contractors to open prefabrication factories depends on market demand. The competitiveness of traditional buildings is still higher than that of prefabricated buildings in China (48). Huang et al (49) stated that it was influenced by many factors.…”

Section: Enterprise Internal Environmentmentioning

confidence: 99%

Exploring Key Factors for Contractors in Opening Prefabrication Factories: A Chinese Case Study

Zhang

Xiang

Zhong

et al. 2022

Front. Public Health

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Adoption of prefabrication is essential for improving the urban built environment. However, the existing prefabrication market in China is far from mature. As the stakeholder who conducts construction activities, the contractor is facing a dilemma of lacking steady prefabricated components supply. In this circumstance, a potential solution is that contractors open their own prefabrication factories to guarantee stable component supply. The aim of this research is exploring the key factors for contractors to open prefabrication factories. Firstly, a total of 28 influencing factors were identified from literature. Then, the identified factors were divided into four categories: policy environment, market environment, technological environment, and enterprise internal environment. Through interviews with experienced professionals, a total of 19 factors were selected for future analysis. Based on the 19 factors, a questionnaire was designed and distributed to the experts to rate the degree of mutual influences. The collected data were analyzed using Ucinet6.0 software, and the adjacency matrix and the visual models were established. Finally, through the analysis of node centrality, betweenness centrality, and closeness centrality, the four key influencing factors were determined including mandatory implementation policy, precast concrete component's price, market demand, and contractor's strategic objectives. The results of this study could assist contractors in making decisions of opening their own prefabrication factories toward more sustainable environment.

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Section: Enterprise Internal Environmentmentioning

confidence: 99%

Exploring Key Factors for Contractors in Opening Prefabrication Factories: A Chinese Case Study

Zhang

Xiang

Zhong

et al. 2022

Front. Public Health

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“…The continuous flow and exchange of resources and information between regions will inevitably lead to geospatial effects between adjacent regions, strengthen the spillover effect of provincial carbon emission of construction industry, and gradually strengthen the spatial correlation of carbon emission of construction industry in each region [37,38]. The carbon emission of construction industry shows significant spatial dependence [39,40]. At present, the research on the spatial correlation of construction carbon emissions is limited to "adjacent" or "similar" regions, while ignoring the correlation between construction carbon emissions at the regional level.…”

Section: Introductionmentioning

confidence: 99%

Spatial Correlation Network and Driving Effect of Carbon Emission Intensity in China’s Construction Industry

Wang¹,

Zhou²,

Zhao³

et al. 2022

Preprint

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To explore the spatial network structure characteristics and driving effects of carbon emission intensity in China's construction industry, the investigation combined the modified gravity model and social network analysis method to deeply analyze the spatially associated network structure characteristics and driving effects of carbon emission intensity in China's construction industry, based on the measurement of carbon emission data of China's construction industry from 2006 to 2017. The results show that the regional differences of carbon emission of construction industry are significant, and the carbon emission intensity of construction industry show a fluctuation trend. The overall network of carbon emission intensity shows an obvious “core-edge” state, the hierarchical network structure is gradually broken. Economically developed provinces generally play a leading role in the network, and play an intermediary role to guide other provinces to develop together with them. Among the network blocks, most of the blocks play the role of “brokers”. The block with the leading economic development has a strong influence on the other blocks. The increase of network density, the decrease of network hierarchy and network efficiency will reduce the construction carbon emission intensity.

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“…In recent years, the use of prefabricated components has become more and more frequent in the construction industry [1][2][3]. Compared with traditional buildings, it has the advantages of energy saving, environmental protection and cost reduction [4,5].…”

Section: Introductionmentioning

confidence: 99%

Effect of C-S-H Nucleating Agent on Cement Hydration

Zhao

Ji²,

Jiang

et al. 2021

Applied Sciences

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This work aims to study the effect of a nucleating agent on cement hydration. Firstly, the C-S-H crystal nucleation early strength agent (CNA) is prepared. Then, the effects of CNA on cement hydration mechanism, early strength enhancement effect, C-S-H content, 28-days hydration degree and 28-days fractal dimension of hydration products are studied by hydration kinetics calculation, resistivity test, BET specific surface area test and quantitative analysis of backscattered electron (BSE) images, respectively. The results show that CNA significantly improves the hydration degree of cement mixture, which is better than triethanolamine (TEA). CNA shortens the beginning time of the induction period by 49.3 min and the end time of the cement hydration acceleration period by 105.1 min than the blank sample. CNA increases the fractal dimension of hydration products, while TEA decreases the fractal dimension. CNA significantly improves the early strength of cement mortars; the 1-day and 3-days strength of cement mortars with CNA are more than the 3-days and 7-days strength of the blank sample. These results will provide a reference for the practical application of the C-S-H nucleating agent.

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Critical factors influencing carbon emissions of prefabricated building supply chains in China

Cited by 65 publications

References 71 publications

Exploring Key Factors for Contractors in Opening Prefabrication Factories: A Chinese Case Study

Exploring Key Factors for Contractors in Opening Prefabrication Factories: A Chinese Case Study

Spatial Correlation Network and Driving Effect of Carbon Emission Intensity in China’s Construction Industry

Effect of C-S-H Nucleating Agent on Cement Hydration

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