Comparative Life Cycle Analysis of Low Energy-consuming Materials, Case Studies: Concrete, Brick, Wood, System Boundary: Cradle to Gate

Document Type : Original Article


1 Department of Architecture, Faculty of Architecture and Urbanism, Tabriz Islamic Art University, Tabriz, Iran

2 Department of Architecture, Faculty of Engineering,Unibo, Bologna, Italy


Recent researches all across the world emphasize the threat of the increasing consumption of energy. The undeniable role of energy consumption in all stages of the life cycle of materials, including extraction, factory manufacturing, and transportation has revealed the necessity of using sustainable methods to have lower energy consumed. The whole energy of all different steps of the life cycle is called "embodied energy" and the process of assessing this embodied energy input is called "life cycle assessment” (LCA). Despite the great importance of LCA, the quantitative test of such a hypothesis has been less of a concern for previous researchers in our country Iran, and due to the lack of organized information from industrial units, such a study has also faced the difficulties of data collection. In this regard, this paper evaluates the amount of embodied energy consumption of building materials at different stages of their life cycle. To reach this goal this research evaluates the initial energy quantitatively (including different stages). More precisely, the present study, based on life cycle assessment system, quantitatively evaluates and compares energy input in different stages of cradle to gate scope, in 3 case studies: Concrete, wood, and brick. The results finally show that per ton of concrete produced 110 (kw.h) electrical energy, 35 (ton) of gas, 170 (Mj) of human Energy, and 495 (g) of Gasoline is consumed, while these quantities for per ton of Brick are 35(kw.h), 18.2 (ton), 72 (Mj) and 250 (g) and For one ton of timber produced are 900 (Kw.h), no Gas used, 170 (Mj) and 495 (g).


1.     Yılmaz, E., Arslan, H., and Bideci, A. 2019. “Environmental performance analysis of insulated composite facade panels using life cycle assessment (LCA).” Construction and Building Materials, 202(3), pp.806–813.
2.     Yildiz, N. B., Arslan, H., and Yilmaz, E. 2020. “Life Cycle Assessment of Building Materials: Literature Review.” Düzce University Journal of Science and Technology, 8(1), pp.210–219.
3.     Roaf, S., Fuentes, M., and Thomas, S. 2012. Ecohouse: A Design Guide (4th ed.). Oxford: Routledge.
4.     Birkeland, J. 2002. Design for sustainability: a sourcebook of integrated, eco-logical solutions. Earthscan. Retrieved from
5.     Zachariah, J. L., Kennedy, C., and Pressnail, K. 2002. “What makes a building green?” International Journal of Environmental Technology and Management, 2(1-3), pp.38-53.
6.     Tam, W. Y. V., Le, K. N., Tran, C. N. N., and Wang, J. Y. 2018. “A review on contemporary computational programs for Building’s life-cycle energy consumption and greenhouse-gas emissions assessment: An empirical study in Australia.” Journal of Cleaner Production, 172, pp.4220–4230.
7.     Wang, C., Xu, A., Jiao, S., Zhou, Z., Zhang, D., Liu, J., Ling, J., Gao, F., Rameezdeen, R., Wang, L., Wang, Y., and Zuo, J. 2020. “Environmental impact assessment of office building heating and cooling sources: A life cycle approach.” Journal of Cleaner Production, 261.
8.     Emyat, B. 2020. “Energy and Exergy Assessment and Heat Recovery on Rotary Kiln of Cement Plant for Cooling Effect Production by Using Vapor Absorption Refrigeration System.” Iranian (Iranica) Journal of Energy and Environment, 11(2), pp.109–115.
9.     Kanthe, V. N., Deo, S. V., and Murmu, M. 2020. “Assessment of Environmental Impact and Formation Factor for Triple Blend Concrete.” Iranian (Iranica) Journal of Energy and Environment, 11(2), pp.146–151.
10.   Ouldboukhitine, S.-E., Belarbi, R., Jaffal, I., and Trabelsi, A. 2011. “Assessment of green roof thermal behavior: A coupled heat and mass transfer model.” Building and Environment, 46(12), pp.2624–2631.
11.   SATBA. 2016. “Renewable Energies.” Organization of Renewable Energies. Retrieved from
12.   Sartori, I., and Hestnes, A. G. 2007. “Energy use in the life cycle of conventional and low-energy buildings: A review article.” Energy and Buildings, 39(3), pp.249–257.
13.   Lazarus, N. 2002. “Construction Materials Report: Toolkit for Carbon Neutral Developments—Part 1, Beddington Zero (Fossil) Energy Development.” In BioRegional Development Group, Surrey (pp. 1–13).
14.   Omer, A. M. 2009. “Energy use and environmental impacts: A general review.” Journal of Renewable and Sustainable Energy, 1(5).
15.   Eustache, H., Gaetan, N., Sandoval, D., Wali, U. G., and Venan, K. 2018. “A Life Cycle Assessment Approach to the Electricity Generation from Gishoma Peat Power Plant.” Iranian (Iranica) Journal of Energy and Environment, 9(3), pp.3176-3181.
16.   Reitinger, C., Dumke, M., Barosevcic, M., and Hillerbrand, R. 2011. “A conceptual framework for impact assessment within SLCA.” The International Journal of Life Cycle Assessment, 16(4), pp.380–388.
17.   Bayer, C., Michael, G., Gentry, R., and Surabhi, J. 2010. AIA guide to building life cycle assessment in practice. The American Institute of Architects, Washington DC.
18.   Curran, M. A. 2000. “Life cycle assessment: An international experience.” Environmental Progress, 19(2), pp.65–71.
19.   Nisbet, M., Vangeem, M., Gajda, J., and Marceau, M. 2000. “Environmental Life Cycle Inventory of Portland Cement Concrete.”, PCA R&D Serial, (2137a). Retrieved from
20.   Findlay, C. 2007. “Transport Services.” In A Handbook of International Trade in Services (pp. 356–388). Villigen and Uster: Oxford University Press.
21.   WHO. 1998. Preventing and managing the global epidemic: report of a WHO consultation on obesity, Presented at: WHO Consultation on Obesity, Geneva, 3-5 June 1997. Geneva: World Health Organization.
22.   Mohsin, R., Majid, Z. A., Shihnan, A. H., Nasri, N. S., and Sharer, Z. 2015. “Effect of Biodiesel Blend on Exhaust Emission and Engine Performance of Diesel Dual Fuel Engine.” Iranian (Iranica) Journal of Energy and Environment, 6(3), pp.154–160.
23.   Layton, B. E. 2008. “A Comparison of Energy Densities of Prevalent Energy Sources in Units of Joules Per Cubic Meter.” International Journal of Green Energy, 5(6), pp.438–455.