Biochar from wood waste as additive for structural concrete

Sirico, Alice; Bernardi, Patrizia; Sciancalepore, Corrado; Vecchi, Francesca De; Malcevschi, Alessio; Belletti, Beatrice; Milanese, Daniel

doi:10.1016/j.conbuildmat.2021.124500

Cited by 60 publications

(19 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A composite's mechanical properties are adversely affected when excessive amounts of the material are incorporated. By Tan et al, a biochar content of more than 5% was shown to accumulate, which will result in an increase in cracks and macropores and a decrease in hydration products [104][105][106]. Incorporating 2% mixed particle size biochar rather than cement at 3 and 7 days increased the mortar compressive strength compared to using a single particle size biochar mixture in a 1:1 ratio [107].…”

Section: The Physical Methodsmentioning

confidence: 99%

“…Strength of concrete: both water-cured concrete and dry-cured concrete could be strengthened by adding biochar from wood waste, A maximum of 5% of wood biochar could be incorporated, with a significant decrease in tensile strength when excessive amounts were used [106]. Biochar introduced pores into cement mortar, which resulted in a decrease in tensile strength.…”

Section: The Physical Methodsmentioning

confidence: 99%

See 1 more Smart Citation

The Capture and Transformation of Carbon Dioxide in Concrete: A Review

Wang

2022

Symmetry

View full text Add to dashboard Cite

Concrete is one of the most commonly used engineering materials in the world. Carbonation of cement-based materials balances the CO2 emissions from the cement industry, which means that carbon neutrality in the cement industry can be achieved by the carbon sequestration ability of cement-based materials. Carbon dioxide is a symmetrical molecule and is difficult to separate. This work introduces the important significance of CO2 absorption by using cement-based materials, and summarizes the basic characteristics of carbonation of concrete, including the affected factors, mathematical modeling carbonization, and the method for detecting carbonation. From the perspective of carbon sequestration, it mainly goes through carbon capture and carbon storage. As the first stage of carbon sequestration, carbon capture is the premise of carbon sequestration and determines the maximum amount of carbon sequestration. Carbon sequestration with carbonization reaction as the main way has been studied a lot, but there is little attention to carbon capture performance. As an effective way to enhance the carbon sequestration capacity of cement-based materials, increasing the total amount of carbon sequestration can become a considerably important research direction.

show abstract

Section: The Physical Methodsmentioning

confidence: 99%

Section: The Physical Methodsmentioning

confidence: 99%

The Capture and Transformation of Carbon Dioxide in Concrete: A Review

Wang

2022

Symmetry

View full text Add to dashboard Cite

show abstract

“…The retained water would slowly be released and contribute to internal curing, facilitating the hydration of biochar-cement composites (Wang et al 2021b). Furthermore, the biochar exhibited a more pronounced enhancement in the long-term strength development via dry curing compared to water curing (Sirico et al 2021). Nonetheless, excessive introduction of biochar would increase the overall porosity and compromise the mechanical strength and workability of biochar-cement composites.…”

Section: Biochar As a Filler In Cement Compositesmentioning

confidence: 99%

Biochar as construction materials for achieving carbon neutrality

Zhang

Wang

et al. 2022

Biochar

111

View full text Add to dashboard Cite

Biochar is a waste-derived material that can sequester carbon at a large scale. The development of low-carbon and sustainable biochar-enhanced construction materials has attracted extensive interest. Biochar, having a porous nature and highly functionalised surface, can provide nucleation sites for chemical reactions and exhibit compatibility with cement, asphalt, and polymer materials. This study critically reviewed the state-of-the-art biochar-enhanced construction materials, including biochar-cement composites, biochar-asphalt composites, biochar-plastic composites, etc. The efficacies and mechanisms of biochar as construction materials were articulated to improve their functional properties. This critical review highlighted the roles of biochar in cement hydration, surface functional groups of engineered biochar for promoting chemical reactions, and value-added merits of biochar-enhanced construction materials (such as humidity regulation, thermal insulation, noise reduction, air/water purification, electromagnetic shielding, and self-sensing). The major properties of biochar are correlated to the features and functionalities of biochar-enhanced construction materials. Further advances in our understanding of biochar’s roles in various composites can foster the next-generation design of carbon–neutral construction materials. Graphical Abstract

show abstract

“…In (Ince, Tayançlı and Derogar, 2021) it is demonstrated that "the use of residual wood materials both in the form of wood powder and in the form of wood fibers offers a more environmentally friendly alternative for the recycling of industrial waste compared to existing waste, options management, as well as the saving of natural resources and CO2 emissions necessary for the production of raw materials for the manufacture of cement mortars ". The use of bio-coal as a component in the concrete mix can be another solution and (Sirico et al, 2021) it has been shown that, if used in an optimal percentage, its addition can have a positive effect on concrete and thus help to develop construction material of the circular economy.…”

Section: Figure No 3 the Trend Topic Plot For Articles Dealing With W...mentioning

confidence: 99%

Applying the Circular Economy Principles in the Wood Construction Industry

Maier¹

2022

New Trends in Sustainable Business and Consumption

View full text Add to dashboard Cite

The purpose of this paper is to investigate the possibilities of implementing the principles of circular economy in the wood construction industry. The general context of the research is characterized by the new and more demanding challenges regarding the environmental protection issues arising from the current rhythm of development of modern society. One way of responding to these challenges is to transform our consumption society into a more sustainable one. The circular economy has recently become a focal point of European Union policy for transforming production and consumption toward a more sustainable and environmentally friendly direction. The circular economy is mainly related to the use of materials after their life cycle and must be implemented at the design stage of a product or system. However, the meaning and implementation of the concept often remain vague and ambiguous. The construction industry is one of the sectors that use a lot of natural resources, put a lot of pressure on the environment, and generates large amounts of waste. The focus of this research is on wood construction and the possibilities of better use of the potential of wood. Through the implementation of the circular economy principles, wood waste can be used furthermore in the product industry and if further research will be carried out it will bring great benefits to businesses, including economic gains in addition to the environmental ones.

show abstract

Biochar from wood waste as additive for structural concrete

Cited by 60 publications

References 44 publications

The Capture and Transformation of Carbon Dioxide in Concrete: A Review

The Capture and Transformation of Carbon Dioxide in Concrete: A Review

Biochar as construction materials for achieving carbon neutrality

Applying the Circular Economy Principles in the Wood Construction Industry

Contact Info

Product

Resources

About