In contrast to the predefined and static processes in most industries, the design and construction processes in the building industry are extremely dynamic. Technical conflicts and modified design goals will lead to ad-hoc changes within the workflow. They are no exception but usual. Therefore, common principles must be established throughout the construction industry, that allow for flexibly c...

it has been shown that geopolymerization can transform a wide range of waste aluminosilicate materials into building materials with excellent chemical and physical properties such as fire and acid resistance. in this research work, geopolymerization of construction waste materials with different alkali-activators based on combinations of na2sio3 and naoh has been investigated. a number of syste...

The adoption of the principles of sustainable development (SD) is increasingly seen as an important way to align the strategic plan of organizations with the specific objectives and procedures used for project execution. However, more research is still needed to identify how SD contributes to align the strategic plan of clients of the building sector with their short-term needs of construction ...

The paper aims to extract the dynamic properties of existing structures without utilizing the analytical models. The ambient vibration testing could be used on any type of frame such as concrete, steel and masonry to investigate the structural vulnerability. The method could be the first stage and necessarily for the retrofit process. To achieve this aim, the ambient vibration testing can...

Background: In spite of science and technology developments and their application in different industries, accidents occur in many work environments. Thus, this study was conducted in order to investigate factors affecting constructional accidents. Materials and Methods: In this descriptive study, all workers who were injured in building construction during 2009-2010 and were registered in t...

Ontologies have been successfully applied as a semantic enabler of communication between both users and applications in fragmented, heterogeneous multinational business environments. In this paper we discuss the underlying principles, their current implementation status, and most importantly, their applicability to problems in the building information modeling domain. We introduce the developme...

tower cranes are major and expensive equipment that are extensively used at building construction projects and harbors for lifting heavy objects to demand points. the tower crane locating problem to position a tower crane and supply points in a building construction site for supplying all requests in minimum time, has been raised from more than twenty years ago. this problem has already been so...

accumulation of unmanaged industrial solid waste, especially in developing countries has resulted in an increased environmental concern. in view of utilization of industrial solid waste the recycled paper mill waste (rpmw) – cement composite bricks were designed and developed. in order to investigate the environmental performance of sustainable construction materials two small scale model house...