Significance of Life Cycle Costing for Selection of Building Construction Materials

2015 ◽  
Author(s):  
ABDULAZIZ AL GHONAMY ◽  
M ESAM ◽  
MOHAMED AICHOUNI ◽  
MOHAMMED ABDULWAHAB ◽  
NOMAN ASHRAF ◽  
...  
Keyword(s):  
Life Cycle ◽  
Construction Materials ◽  
Life Cycle Costing ◽  
Building Construction ◽  
Selection Of

scholarly journals Comparison of the Applied Measures on the Simulated Scenarios for the Sustainable Building Construction through Carbon Footprint Emissions—Case Study of Building Construction in Serbia

2018 ◽  
Vol 10 (12) ◽  
pp. 4688
Author(s):  
Marina Nikolić Topalović ◽  
Milenko Stanković ◽  
Goran Ćirović ◽  
Dragan Pamučar
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Carbon Footprint ◽  
Phase 1 ◽  
Construction Materials ◽  
Building Construction ◽  
Long Term Effects ◽  
Embodied Carbon ◽  
Long Run ◽  
The Impact

Research was conducted to indicate the impact of the increased flow of thermal insulation materials on the environment due to the implementation of the new regulations on energy efficiency of buildings. The regulations on energy efficiency of buildings in Serbia came into force on 30 September 2012 for all new buildings as well as for buildings in the process of rehabilitation and reconstruction. For that purpose, the carbon footprint was analyzed in three scenarios (BS, S1 and S2) for which the quantities of construction materials and processes were calculated. The life cycle analysis (LCA), which is the basis for analyzing the carbon life cycle (LCACO2), was used in this study. Carbon Calculator was used for measuring carbon footprint, and URSA program to calculate the operational energy. This study was done in two phases. In Phase 1, the embodied carbon was measured to evaluate short-term effects of the implementation of the new regulations. Phase 2 included the first 10 years of building exploitation to evaluate the long-term effects of the new regulations. The analysis was done for the period of 10 years, further adjustments to the regulations regarding energy efficiency of the buildings in Serbia are expected in accordance with EU directives. The study shows that, in the short-run, Scenario BS has the lowest embodied carbon. In the long-run, after 3.66 years, Scenario S2 becomes a better option regarding the impact on the environment. The study reveals the necessity to include embodied carbon together with the whole life carbon to estimation the impact of a building on the environment.

scholarly journals BARRIERS IN PRACTICING LIFE CYCLE COSTING TECHNIQUES EXPERIENCED BY SRI LANKAN QUANTITY SURVEYORS

2021 ◽  
Author(s):  
I.P.T. Sandaruwan ◽  
◽  
H. Chandanie ◽  
J.A.B. Janardana ◽  
◽  
...  
Keyword(s):  
Life Cycle ◽  
Data Collection ◽  
Life Cycle Costing ◽  
Building Construction ◽  
Local Context ◽  
Building Industry ◽  
Sri Lankan ◽  
Expert Interviews ◽  
User Friendly ◽  
Awareness Programme

Life Cycle Costing (LCC) is a tool, which can evaluate all the building-related costs over a specified period of time, as mentioned in the agreed scope. Though there are number of benefits, LCC practices of consultants in the building industry are claimed to be weak. Hence, the aim of this research is to investigate barriers in practicing LCC techniques experienced by Sri Lankan quantity surveyors. Accordingly, a mixed approached was followed in data collection through a questionnaires survey and a series of expert interviews. However, in Sri Lanka, building construction consultants are not practicing the LCC concept to a greater extent. This research identified, lack of awareness on the LCC tool by employers and practitioners, lack of knowledge on LCC and lack of previous data as the major barriers for practicing LCC techniques in local context. It was suggested that enhancing the practice of LCC through conducting various awareness programme on LCC concept, build up and maintain the proper database and introducing user friendly tools, applications, calculations methods, guidelines and regulations, will lead to avoid above mentioned barriers, which will ultimately enhance the proper practice of LCC concept in the Sri Lankan quantity surveyors.

scholarly journals The Organization of Biosphere Compatibility Construction : Justification of the Predictors of Building Development and the Implementation Prospects

2018 ◽  
Vol 7 (3.2) ◽  
pp. 584 ◽  
Author(s):  
Denys Chernyshev ◽  
Iryna Ivakhnenko ◽  
Maryna Klymchuk
Keyword(s):  
Life Cycle ◽  
Numerical Analysis ◽  
Urban Environment ◽  
Construction Project ◽  
Point Of View ◽  
Building Construction ◽  
Quantitative Indicators ◽  
The City ◽  
Selection Of

The article considers the modern practice of urban innovation, based on the principles of biosphere compatibility. The project solution of providing organizational and technological reliability of construction from the point of view of the possibility of realizing the functions of a biosphere compatibility city and introducing innovative constructive and architectural and planning solutions is analyzed. In relation to the construction project, the formalization of the methodology for calculating the indicators of the biosphere compatibility of cities and settlements, the quantitative indicators of the implementation of the functions of the city are determined. The obtained results of numerical analysis of the realization of city functions can predict the development of urban areal, assess the comfort and safety of the urban environment from the standpoint of biosphere compatibility of construction objects in order to harmonize the characteristics of the life cycle of these projects with the characteristics of the microenvironment of their implementation. The basis of such tools is: multifactorial, multicomponent modeling and multicriterial selection of alternatives for building construction for projects, provided that the level of biosphere compatibility is used as the leading analytical coordinate of such simulation. These models, implemented in the format of modern construction, will serve as a basis for organizational and technological and environmental expertise of projects.  

Life-cycle cost analysis of building wall and insulation materials

2019 ◽  
Vol 43 (5) ◽  
pp. 428-455 ◽  
Author(s):  
Dileep Kumar ◽  
Patrick X.W. Zou ◽  
Rizwan Ahmed Memon ◽  
MD Morshed Alam ◽  
Jay G Sanjayan ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Life Cycle ◽  
Life Cycle Cost ◽  
Construction Materials ◽  
Building Construction ◽  
Life Cycle Cost Analysis ◽  
Insulation Materials ◽  
Insulation Thickness ◽  
Wall Materials ◽  
Optimum Insulation Thickness

Heat transfer through building opaque envelope is responsible for approximately half of the total heat loss and gain to and from the surroundings. Therefore, insulation materials are commonly used in the building envelope to reduce the heat transfer. Recently, lightweight wall materials with lower thermal conductivity are used in construction along with the commonly used materials such as heavy concrete and earthen materials. In this perspective, there is a need to understand the optimum insulation thickness for different types of building construction materials to minimize unnecessary usage of insulation materials. This study investigated the optimum insulation thickness for different construction materials following a life-cycle approach, where an analytical optimization methodology based on the degree-days method and life-cycle cost analysis was used. In total, 4 insulation materials and 15 building construction materials were considered in the optimization study. The objective function was to minimize life-cycle cost corresponding to the decision variables including insulation thickness and the thermal conductivity of insulation and wall materials. The results showed that the use of insulation in lightweight wall materials is not economically feasible because of their negligible cost-saving potential (below US$2.5/m2-year). However, the walls with heavy concrete and earthen materials that have high thermal mass must be insulated due to their highest cost-saving potential (US$14–26.39/m2-year).

A COMPARATIVE STUDY OF TWO SWEDISH LCA-BASED TOOLS FOR PRACTICAL ENVIRONMENTAL EVALUATION OF BUILDINGS

2007 ◽  
Vol 09 (03) ◽  
pp. 319-339 ◽  
Author(s):  
KAROLINA BRICK ◽  
BJÖRN FROSTELL
Keyword(s):  
Life Cycle ◽  
Life Expectancy ◽  
Energy Use ◽  
Construction Materials ◽  
Building Construction ◽  
Environmentally Benign ◽  
Environmental Load ◽  
Environmental Evaluation ◽  
Implementation Phase ◽  
Materials Used

In Sweden, two LCA-based tools for the built environment have been developed the last years: the "Environmental Load Profile" and "EcoEffect". Both are standing in front of an implementation phase and it is therefore important that they may deliver credible and consistent results to end users and facilitate a transition to more environmentally benign building construction and administration. The present study looked at the differences in results that may appear when using the tools and where they come from. Applying the two tools for assessment of a new building on equal basis created differences in results. However, both tools pointed at energy use in the administration phase of the life cycle being the most significant factor for environmental impact, consistent with other studies. The results indicate that: (i) differences in material grouping and life expectancy for the construction materials used, (ii) differences in LCI-data used and (iii) different classification and characterisation models used, give rise to important differences.

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