To investigate current practices and identify challenges of piping prefabrication, this paper conducts a comprehensive survey to mechanical, electrical, and plumbing (MEP) contractors. This paper is performed in three main steps. First, the current state of piping prefabrication, the attitude of MEP contractors to piping prefabrication, and the challenges of piping prefabrication are identified...

This paper reviews the greenhouse gas emissions of prefabrication elements for residential development in Hong Kong. Prefabrication becomes a common practice in residential development in Hong Kong and is considered as a green approach. In Hong Kong, prefabrication took place at factories in Pearl River Delta. Although prefabrication reduces construction wastage, it might generate more greenhou...

Prefabrication is realised as a novel direction to conquer the chronic problems such as low productivity, high waste production, inferior working conditions and insufficient quality in construction. Despite benefits of prefabrication, inherent issues related to inefficiencies have been identified from its production process. Lean Production Principles are recognised as a paramount concept which...

As a sustainable construction method, prefabrication has become popular in many nations. However, there are many challenges for prefabrication, especially in terms of cost. Previous studies have revealed that higher capital cost was the most important barrier to the implementation of prefabrication. Thus, the objective of this study is to explore and evaluate the critical factors affecting the ...

Singapore’s limited resources have caused severe labor shortage and brought adverse impact on the construction industry. Prefabrication, the crucial part of the integrated construction automation processes, has appeared to be the ideal and most practical way to sustain the long-standing strategy of reducing the reliance on labor resource. In this paper, the potential of prefabrication in resolv...

This study aims to investigate the repair of bone defects with prefabricated vascularized bone grafts and double-labeled bone marrow-derived mesenchymal stem cells (BMSCs) in a rat model. BMSCs were separated from rat bone marrow. LTR-CMVpro-RFP and LTR-CMVpro-GFP were transfected into the BMSCs for in vitro and in vivo tracking. BMSCs-RFP and BMSCs-GFP were induced into endothelial progenitor ...

Blu Homes, an innovative housing company based in the Boston, is looking forward to having the opportunities to expand its customer base on the West Coast. The company sells durable, energy-efficient prefabrication homes and has several million dollars of revenue annually. Blu Homes has a concrete mission to build super-efficient prefabrication green homes by leveraging their leading-edge techn...

Prefabrication could provide various benefits for housing production, including lower the cost, improve the management efficiency and quality, ensure the safety, and realize sustainability. However, to fully acquire these benefits in real world construction process, challenges still exist on real-time tracing and tracking of the prefabrication components, and getting real-time interactions amon...

Construction wastes have become the major source of solid wastes in Hong Kong. Thousands of tonnes of solid wastes are produced every year from construction and demolition activities. Increasing generation of these wastes has caused significant impacts on the environment and aroused growing public concerns. Therefore, the minimization of construction wastes has become a pressing issue. This pap...

The significant advance in the boosted fabrication speed and printing resolution of additive technology has considerably increased the capability of achieving product designs with high geometric complexity. The prefabrication computation has been increasingly important and is coming to be the bottleneck in the additive manufacturing process. In this paper, the authors devise an integrated compu...