Synthesis, characterization and applications of nano/micro carbonaceous inerts: A review

Khalid, Aliya; Khushnood, Rao Arsalan; Mahmood, Ayesha; Ferro, Giuseppe Andrea; Ahmad, Sajjad

doi:10.1016/j.prostr.2018.06.019

Cited by 9 publications

(3 citation statements)

References 62 publications

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“…Biochar is considered an economically viable solution for global carbon sequestration and has potential as a building material (Hans-Peter Schmidt, 2014). It can be used as an admixture in concrete and as a cementitious composite additive (Khalid et al, 2018). Studies have shown that adding 1-2% by weight of biochar to mortar can improve its mechanical strength, with an increase in tensile and compressive strengths of even more than 20% achieved (Gupta et al, 2018).…”

Section: Biocharmentioning

confidence: 99%

“…This process happens in a low-oxygen environment, and the temperature can range from 600-700°C (Tomczyk et al, 2020). Biochar is a stable form of carbon that lasts longer than biomass and can be produced from various types of biomass waste, including agricultural waste, furniture waste, kitchen trash, industrial sludge, manure waste, and municipal solid waste (Gale et al, 2021;Khalid et al, 2018).Activated carbon can be created from biochar precursors using physical or chemical activation. Physical activation involves pyrolysis or heat treatment followed by exposure to an oxidizing gas.…”

Section: Biocharmentioning

confidence: 99%

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Comparative Study of Biochar and Charcoal and Their Application in the Construction Industry

Yadav

Sharma

2023

Preprint

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The construction industry heavily relies on cement, which contributes significantly to greenhouse gas emissions during production and depletes natural resources. Moreover, the decomposition of organic waste is a significant source of emissions that contribute to environmental damage due to the lack of proper management. However, biochar and charcoal derived from organic waste can be utilized as admixtures in concrete to minimize these emissions. This study investigates the mechanical properties of concrete with partial cement replacement using biochar and charcoal separately. The aim is to determine the optimal percentages of cement replacement and the effectiveness of using these byproducts to manage organic waste and reduce emissions. The report compares the behavior and suitability of biochar and charcoal in concrete based on the mechanical strength of the resulting concrete. It suggests that both materials exert distinct effects on the properties of concrete, with the optimal replacement percentage variations. However, it is noteworthy that biochar outperforms charcoal in all mechanical aspects of concrete and significantly improves flexural strength. However, more research is needed to determine the effect of different biochar on flexural strength in concrete. Recent research has demonstrated that incorporating biochar and charcoal as cement admixtures holds significant promise in reducing greenhouse gas emissions and mitigating the negative environmental impact of organic waste in the construction industry.

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Section: Biocharmentioning

confidence: 99%

Section: Biocharmentioning

confidence: 99%

Comparative Study of Biochar and Charcoal and Their Application in the Construction Industry

Yadav

Sharma

2023

Preprint

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“…Many researchers have suggested alternate ways for useful application of the agricultural wastes, which involve the extraction of carbonaceous inerts via several techniques such as hydrogenation, fermentation, combustion, bioconversion, etc. [35,36] According to a number of other researchers, pyrolysis is the most effective technique for extracting useful carbonaceous inerts from agricultural wastes [37][38][39].…”

Section: Carbonaceous Inertsmentioning

confidence: 99%

Production of Biochar and Its Potential Application in Cementitious Composites

et al. 2021

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In cement composites, usually, reinforcement is provided to restrict the crack development and their further propagation under service conditions. Typically, reinforcements utilized in cementitious composites range from nanometer scale to millimeter scale by using nano-, micro-, and millimeter-sized fibers and particles. These reinforcements provide the crack arresting mechanisms at the nano/microscale and restrict the growth of the cracks under service loads, but usually, the synthesis of nano/microfibers, and afterward their dispersion in the cementitious materials, pose difficulty, thus limiting their vast application in the construction industry. Carbonaceous inerts are green materials since they are capable of capturing and storing carbon, thus limiting the emission of CO2 to the atmosphere. In the present study, a comprehensive review of the synthesis of low cost and environmentally friendly nano/micro carbonaceous inerts from pyrolysis of different agricultural/industrial wastes, and afterward, their application in the cementitious materials for producing high performance cementitious composites is presented, which have the potential to be used as nano/micro reinforcement in the cementitious matrix.

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Mechanical Characterization of Concrete with Rice Husk-Based Biochar as Sustainable Cementitious Admixture

Ghosal

Pani

Pattanaik

et al. 2022

Lecture Notes in Mechanical Engineering

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Synthesis, characterization and applications of nano/micro carbonaceous inerts: A review

Cited by 9 publications

References 62 publications

Comparative Study of Biochar and Charcoal and Their Application in the Construction Industry

Comparative Study of Biochar and Charcoal and Their Application in the Construction Industry

Production of Biochar and Its Potential Application in Cementitious Composites

Mechanical Characterization of Concrete with Rice Husk-Based Biochar as Sustainable Cementitious Admixture

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