The Hong Kong construction industry heavily relies on conventional cast insitu construction involving extensive use of wet trades and on-site construction processes. The construction activities have been described as “labour intensive, dangerous and polluting”. Recently, the use of prefabrication has increased in the building industry. This paper presents the preliminary findings of an ongoing ...

As Hong Kong is a compact city with limited available land and high land prices, the construction of high-rise buildings is prevalent. The construction industry produces a significant amount of building waste. In 2005, about 21.5 million tonnes of construction waste were generated, of which 11% was disposed of in landfills and 89% in public filling areas. At the present rate, Hong Kong will run...

OBJECTIVE The prefabrication of customized cranioplastic implants has been introduced to overcome the difficulties of intra-operative implant molding. The authors present a new technique, which consists of the prefabrication of implant molds using three-dimensional (3D) printers and polymethyl-methacrylate (PMMA) casting. METHODS A total of 16 patients with large skull defects (>100 cm(2)) un...

Prefabrication in construction industry can probably reduce the cost of waste. In this research, advantages and disadvantages prefabrication its eco-efficiency were identified; then development strategies reviewed. For purpose, questionnaires used to select proper sub-systems for prefabrication. The Delphi Snowball method was applied according experts 'opinion, these identified adopted. Then ef...

So far, the use of Building Information Modeling (BIM) to support automatic prefabrication and onsite assembly processes during a construction project has been limited. The modeling and management of information concerning the diverse elements involved in these construction processes, such as activities, objects, flows and operations, has not been sufficiently studied. In order to support the p...

AIM OF THE STUDY The aim of the study was to develop standards for the prefabrication of free microvascular flaps in an animal model, followed by their application in clinical practice, and quantitative/qualitative microscopic assessment of the extent of development of a new microvascular network. MATERIAL AND METHODS The study was carried out in 10 experimental pigs. As the first stage, a to...