Development of GHG Emissions Curves for Bio-Concretes Specification: Case Study for Bamboo, Rice Husk, and Wood Shavings Considering the Context of Different Countries

Abstract:

Bio-concretes are receiving special attention in recent research as an alternative for climate change mitigation due to their low carbon footprints. Different bio-based materials can be used, e.g., wood shavings, bamboo, rice husk, and coconut. However, various methodological parameters can influence the carbon footprint of bio-based materials, especially bio-concretes, like biogenic carbon, amount of carbon in dry matter, rotation period of bio-aggregates, and type of cementitious materials. It is important to have easier ways of estimating the carbon footprint of bio-concretes, using parameters and data easily available. This research aims to evaluate the (1) carbon footprint of different mixtures of three bio-concretes (wood bio-concrete - WBC, bamboo bio-concrete - BBC and rice husk bio-concrete - RBC), and the (2) development of GHG emissions curves for bio-concretes specification based on easily available data (such as density, biomass content, and compressive strength). Based on experimental data, the carbon footprint was performed using the Life Cycle Assessment (LCA) methodology. In order to extend the findings of this study, the context of the following four countries was evaluated: Brazil, South Africa, India, and China. In addition, the replacement of Portland cement for Supplementary Cementitious Materials (SCMs) are evaluated hypothetically. The results show that the increase of biomass content in bio-concretes and the replacement of Portland cement by SCMs leads to a radical decrease in life cycle GHG emissions. The percentage of carbon in biomass is a critical factor for reducing the carbon footprint. The WBC was the biomass that performed better for this parameter. The presented GHG emissions curves can be a useful way to estimate the carbon footprint of bio-concretes and can be adapted to other kinds of bio-concretes and countries.

• Periodical: Construction Technologies and Architecture (Volume 1)
• Pages: 428-435
• DOI: https://doi.org/10.4028/www.scientific.net/CTA.1.428
• Online since: January 2022
• Authors: Lucas Rosse Caldas*, Carolina Goulart Bezerra, Francesco Pittau, Arthur Araujo, Mariana Franco, Nicole Hasparyk, Romildo Dias Toledo Filho
• Keywords: Bio-Concrete, Biogenic Carbon, Brazil, China, India, LCA, South Africa

References

[1] Amziane, S., Sonebi, M., 2016. Overview on bio-based building material made with plant aggregate Overview on bio-based building material made with plant aggregate 31–38.

DOI: 10.21809/rilemtechlett.2016.9

[2] Andreola, V.M., Gloria, M.Y.R., Santos, D.O.J., Filho, R.D.T., 2019. Partial Replacement Of Cement By Combination Of Fly Ash And Metakaolin In Bamboo Bio-Concretes. Acad. J. Civ. Eng. 37, 102–106.

[3] Arehart, J.H., Nelson, W.S., Srubar, W. V., 2020. On the theoretical carbon storage and carbon sequestration potential of hempcrete. J. Clean. Prod. 266, 121846. https://doi.org/10.1016/j.jclepro.2020.121846.

DOI: 10.1016/j.jclepro.2020.121846

[4] Arrigoni, A., Pelosato, R., Melià, P., Ruggieri, G., Sabbadini, S., Dotelli, G., 2017. Life cycle assessment of natural building materials: the role of carbonation, mixture components and transport in the environmental impacts of hempcrete blocks. J. Clean. Prod. 149, 1051–1061. https://doi.org/10.1016/j.jclepro.2017.02.161.

DOI: 10.1016/j.jclepro.2017.02.161

[5] Brandão, M., Levasseur, A., Kirschbaum, M.U.F., Weidema, B.P., Cowie, A.L., Jørgensen, S.V., Hauschild, M.Z., Pennington, D.W., Chomkhamsri, K., 2013. Key issues and options in accounting for carbon sequestration and temporary storage in life cycle assessment and carbon footprinting. Int. J. Life Cycle Assess. 18, 230–240. https://doi.org/10.1007/s11367-012-0451-6.

DOI: 10.1007/s11367-012-0451-6

[6] Caldas, L.R., Da Gloria, M.Y.R., Pittau, F., Andreola, V.M., Habert, G., Toledo Filho, R.D., 2020a. Environmental impact assessment of wood bio-concretes: Evaluation of the influence of different supplementary cementitious materials. Constr. Build. Mater. https://doi.org/10.1016/j.conbuildmat.2020.121146.

DOI: 10.1016/j.conbuildmat.2020.121146

[7] Caldas, L.R., Saraiva, A.B., Andreola, V.M., Dias, R., Filho, T., 2020b. Bamboo bio-concrete as an alternative for buildings ' climate change mitigation and adaptation. Constr. Build. Mater. 263, 120652. https://doi.org/10.1016/j.conbuildmat.2020.120652.

DOI: 10.1016/j.conbuildmat.2020.120652

[8] Caldas, L.R., Saraiva, A.B., Lucena, A.F.P., Da Gloria, M.Y., Santos, A.S., Filho, R.D.T., 2021. Building materials in a circular economy: The case of wood waste as CO2-sink in bio concrete. Resour. Conserv. Recycl. 166. https://doi.org/10.1016/j.resconrec.2020.105346.

DOI: 10.1016/j.resconrec.2020.105346

[9] CEN, E.C.F.S., 2013. EN 15804:2013 - Standards Publication Sustainability of construction works — Environmental product declarations — Core rules for the product category of construction products. Int. Stand.

DOI: 10.3403/30259256

[10] da Gloria, M.Y.R., Andreola, V.M., dos Santos, D.O.J., Pepe, M., Toledo Filho, R.D., 2020. A comprehensive approach for designing workable bio-based cementitious composites. J. Build. Eng. https://doi.org/10.1016/j.jobe.2020.101696.

DOI: 10.1016/j.jobe.2020.101696

[11] Damineli, B.L., Kemeid, F.M., Aguiar, P.S., John, V.M., 2010. Measuring the eco-efficiency of cement use. Cem. Concr. Compos. https://doi.org/10.1016/j.cemconcomp.2010.07.009.

DOI: 10.1016/j.cemconcomp.2010.07.009

[12] Florentin, Y., Pearlmutter, D., Givoni, B., Gal, E., 2017. A life-cycle energy and carbon analysis of hemp-lime bio-composite building materials. Energy Build. 156, 293–305. https://doi.org/10.1016/j.enbuild.2017.09.097.

DOI: 10.1016/j.enbuild.2017.09.097

[13] Guest, G., Cherubini, F., Strømman, A.H., 2012. Global Warming Potential of Carbon Dioxide Emissions from Biomass Stored in the Anthroposphere and Used for Bioenergy at End of Life 17. https://doi.org/10.1111/j.1530-9290.2012.00507.x.

DOI: 10.1111/j.1530-9290.2012.00507.x

[14] Habert, G., Miller, S.A., John, V.M., Provis, J.L., Favier, A., Horvath, A., Scrivener, K.L., 2020. Environmental impacts and decarbonization strategies in the cement and concrete industries. Nat. Rev. Earth Environ. https://doi.org/10.1038/s43017-020-0093-3.

DOI: 10.1038/s43017-020-0093-3

[15] Hoxha, E., Passer, A., Saade, M.R.M., Trigaux, D., Shuttleworth, A., Pittau, F., Allacker, K., Habert, G., 2020. Biogenic carbon in buildings: a critical overview of LCA methods. Build. Cities 1, 504–524. https://doi.org/10.5334/bc.46.

DOI: 10.5334/bc.46

[16] Pittau, F., Krause, F., Lumia, G., Habert, G., 2018. Fast-growing bio-based materials as an opportunity for storing carbon in exterior walls. Build. Environ. 129, 117–129. https://doi.org/10.1016/j.buildenv.2017.12.006.

DOI: 10.1016/j.buildenv.2017.12.006

[17] UNEP, 2019. Global Status Report for Buildings and Construction. Towards a zero-emissions, effi cient and resilient buildings and constructi on sector.