Environmental impact assessment of wood bio-concretes: Evaluation of the influence of different supplementary cementitious materials

Caldas, Lucas Rosse; Gloria, M’hamed Yassin Rajiv da; Pittau, Francesco; Andreola, Vanessa Maria; Habert, Guillaume; Filho, Romildo Dias Tolêdo

doi:10.1016/j.conbuildmat.2020.121146

Cited by 35 publications

(40 citation statements)

References 42 publications

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“…For the sensitivity analysis, part of the cement is replaced (in mass) by SCMs, metakaolin, and fly ash, based on a previous study of Caldas et al (2020a) and Caldas et al (2021), considering a proportion of 30:30:40 (cement: metakaolin: fly ash). In this analysis, it is important to see how the increase of biogenic carbon participation will affect the final results, since the use of SCMs for bio-concretes production significantly decreases the carbon footprint of bio-concretes.…”

Section: Sensitivity Analysismentioning

confidence: 99%

“…They are light materials with good thermal performance and can reuse different kinds of bio-based waste, such as wood shavings, rice husk, and bamboo particles. They can be considered as circular building materials with the potential to stock CO2 (Amziane ICBBM2021 andSonebi, 2016;Caldas et al, 2020aCaldas et al, , 2021. They can be produced in developing countries (especially African and Asian countries) where a great housing deficit exists and will continue to increase in the next years.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, diverse studies with interest in the evaluation of the GHG emissions of bio-concretes have been conducted, using the Life Cycle Assessment (LCA) methodology, particularly the hempcrete (Arehart et al, 2020;Arrigoni et al, 2017;Florentin et al, 2017;Pittau et al, 2018) that is already used in commercial applications. Other researchers are interested in bio-concretes with wood-shavings (Caldas et al, 2020a(Caldas et al, , 2021 and bamboo (Caldas et al, 2020b). Most of these studies point out that the bio-concrete can be considered a low-carbon material when compared with conventional building materials such as ceramic, concrete, and steel.…”

Section: Introductionmentioning

confidence: 99%

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

Caldas

Bezerra

Pittau

et al. 2022

Construction Technologies and Architecture

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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.

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Section: Sensitivity Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Caldas

Bezerra

Pittau

et al. 2022

Construction Technologies and Architecture

Self Cite

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“…Rispetto alla funzione strutturale, la biomassa ad oggi più utilizzata è il legno, il quale, oltre, alla sua tradizione millenaria, entra all'interno delle logiche costruttive contemporanee grazie l'avvento di miglioramenti tecnologici che permettono di superare i limiti dimensionali o di luce coperta, come per esempio accade con il legno lamellare (CLT e Glulam). Il mondo della ricerca sta cercando di sviluppare nuove formulazioni di calcestruzzo fibro-rinforzato aggiungendo fibre vegetali nella miscela, per migliorare da una parte la resistenza alla trazione e, al contempo, limitare le emissioni fossili per la riduzione dell'uso del cemento Portland come legante (Caldas et al, 2020). L'uso ai fini dell'isolamento termico risulta essere l'applicazione più diffusa.…”

Section: Analisi Del Mercato E Della Letteratura Scientificaunclassified

“…La frammentarietà e inesattezza delle informazioni, ha messo in fibres in the mixture, to improve both the tensile strength and, at the same time, limit fossil emissions by reducing the use of Portland cement as a binder (Caldas et al, 2020).…”

Section: Disponibilità Europeamentioning

confidence: 99%

Reasoned catalogue of biogenic products in Europe. An anticipatory vision between technical potentials and availability

Carcassi

Paoletti

Malighetti

2021

Techne

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Bio-based materials gained momentum in recent years due to their origin from raw materials capable of self-regeneration, locally available and theoretically biodegradable, as well as for their natural ability to store carbon dioxide (CO2) within the biomass. In a circular economy and within the perspective of the diffusion of information, this reasoned catalogue compares their technical and environmental properties together with their availability within the European territory. The aim is to support stakeholders towards a conscious choice of products and, during the process innovation phase, to help them choose the raw materials for the composition of new building materials/components to be included in a “circular” market.

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Bond-Behavior of Bamboo Strips and Bamboo/Wood Bio-Concretes

Silva

Aguiar²,

Gloria³

et al. 2023

RILEM Bookseries

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Environmental impact assessment of wood bio-concretes: Evaluation of the influence of different supplementary cementitious materials

Cited by 35 publications

References 42 publications

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

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

Reasoned catalogue of biogenic products in Europe. An anticipatory vision between technical potentials and availability

Bond-Behavior of Bamboo Strips and Bamboo/Wood Bio-Concretes

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