Key Laboratory for Resilient Infrastructures of Coastal Cities (Shenzhen University), Ministry of Education, China; Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen, China; Sino-Australia Joint Research Center in BIM and Smart Construction, Shenzhen University, Shenzhen, China; Shenzhen Key Laboratory of Green, Efficient and Intelligent Construction of Underground Metro Station, Shenzhen University, Shenzhen, China.
Sino-Australia Joint Research Center in BIM and Smart Construction, Shenzhen University, Shenzhen, China; Department of Construction Management and Real Estate, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, China.
Waste Manag. 2023 Apr 15;161:213-224. doi: 10.1016/j.wasman.2023.03.005. Epub 2023 Mar 7.
The abundant generation of construction and demolition waste (CDW) poses a threat to the sustainable development in China and recycling plays a vital role in complying with circular economy zero-waste goal. In this study, we first investigate the determinants of contractor's intention to recycle CDW by establishing an integrative model of the theory of planned behavior (TPB) and the norm activation model (NAM) with rational and moral considerations. Based on the questionnaire data of 210 valid responses, structural equation modeling is employed to test the proposed hypotheses and analyze the integrative structural model. The results show that the integrative model with adequate reliability and validity fits the empirical data well and the explanation power is superior to that of initial TPB model and NAM model, demonstrating the appropriateness of merging TPB and NAM in the area of CDW recycling research. Moreover, it is found that personal norms are the most critical determinant enhancing the CDW recycling intention, followed by perceived behavioral control. Although subjective norms fail to directly affect the CDW recycling intention, they can significantly strengthen personal norms and perceived behavioral control. These findings provide useful insights for government to develop effective management strategies to motivate CDW recycling intention of contractors.
建筑和拆除废物（CDW）大量产生，对中国的可持续发展构成威胁，而回收利用在符合循环经济零废物目标方面发挥着至关重要的作用。在本研究中，我们首先通过将计划行为理论（TPB）和规范激活模型（NAM）与理性和道德考虑相结合，建立综合模型，研究承包商回收 CDW 的意愿决定因素。基于 210 份有效回复的问卷数据，采用结构方程模型检验了所提出的假设，并对综合结构模型进行了分析。结果表明，具有足够可靠性和有效性的综合模型很好地拟合了实证数据，解释力优于初始 TPB 模型和 NAM 模型，表明在 CDW 回收研究领域合并 TPB 和 NAM 的合理性。此外，研究还发现个人规范是增强 CDW 回收意愿的最关键决定因素，其次是感知行为控制。尽管主观规范不能直接影响 CDW 回收意愿，但它们可以显著增强个人规范和感知行为控制。这些发现为政府制定有效管理策略以激发承包商的 CDW 回收意愿提供了有益的见解。
