Sustainable Construction: Comparison of Environmental Effects of Two Construction Methods

Ndungu, Peter K; Tsao, Cynthia C.Y.; Molavi, Jeffrey M

doi:10.1061/41204(426)50

Cited by 3 publications

(2 citation statements)

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“…One of the ongoing challenges in the quest to make the built environment more sustainable is to identify and mitigate environmental impacts in all phases of buildings, from design to construction to use and maintenance and finally end of life phases (Ndungu et al 2012). Ndungu et al (2012) compare the life cycle environmental burdens of constructing Composite Metal Deck and Hollow Core floor systems for commercial buildings by using a Hybrid Life Cycle Assessment (lCa) approach. The study covers material extraction (cradle-to-gate) and construction (gate-to-gate) phases and includes a detailed assessment of both direct and supply chain impacts.…”

Section: Methods Models and Rating Systems Of The Building Life-cyclmentioning

confidence: 99%

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Multiple Criteria Analysis of the Life Cycle of the Built Environment

Kaklauskas¹,

Zavadskas²

2015

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To design and achieve effective the life cycle of the built environment a complex analysis of its stages as well as stakeholders, their aims and potentialities is needed. The effect of micro, meso and macro environmental factors should also be taken into account. A thorough built environment's life cycle (brief; design; raw material extraction, transport and processing; construction materials production and distribution; construction; use, repair and maintenance; demolition; disposal, reuse, or recycling) analysis is quite difficult to undertake, because a buildings and its environment are a complex system (technical, technological, economical, social, cultural, ecological, etc.), where all sub-systems influence the total efficiency performance and where the interdependence between sub-systems play a significant role. Various stakeholders (clients, users, architects, designers, utilities engineers, economists, contractors, maintenance engineers, built environment material manufacturers, suppliers, contractors, finansing institutions, local government, state and state institutions) are involved in the life cycle of the built environment, trying to satisfy their needs and affecting its efficiency. The level of the efficiency of the life cycle of the built environment depends on a number of variables, at three levels: micro, meso and macro level. The problem is how to define an efficient built environment life cycle when a lot of various parties are involved, the alternative project versions come to hundreds thousand and the efficiency changes with the alterations in the environment conditions and the constituent parts of the process in question. Moreover, the realization of some objectives seems more rational from the economic perspective thought from the other perspectives they have various significance. Therefore, it is considered that the efficiency of a built environment life cycle depends on the rationality of its stages as well as on the ability to satisfy the needs of the stakeholders and the rational character of environment conditions. Formalized presentation of the research shows how changes in the environment and the extent to which the goals pursued by various stakeholders are satisfied cause corresponding changes in the value and utility degree of a built environment life cycle. With this in mind, it is possible to solve the problem of optimization concerning satisfaction of the needs at reasonable expenditures. This requires the analysis of the built environment life cycle versions allowing to find an optimal combination of goals pursued and finances available.References to the most modern world scientific literature sources are presented in the monograph. The monograph is prepared for the researchers, MSc and PhD students of civil engineering, construction management and real estate development. The book may be useful for other researchers, MSc and PhD students of economics, management and other specialities.The edition was recommended by the Committe of Studies of VGTU Faculty of Civil Engineering.

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Section: Methods Models and Rating Systems Of The Building Life-cyclmentioning

confidence: 99%

“…These results are presented in several categories for comparative assessment -energy use, Carbon Dioxide (CO 2 ), Carbon Monoxide (CO), Nitrogen Dioxide (NO 2 ), Sulphur Dioxide (SO 2 ), PM10 and VOC emissions. Other categories include solid waste and liquid emissions (Ndungu et al 2012).…”

Section: Methods Models and Rating Systems Of The Building Life-cyclmentioning

confidence: 99%