The state-of-the-art review on biochar as green additives in cementitious composites: performance, applications, machine learning predictions, and environmental and economic implications

Biochar, Год журнала: 2025, Номер 7(1)

Опубликована: Янв. 22, 2025

Язык: Английский

---

Recent advances for CO2 mineralization in biochar-amended cementitious composites

Resources Conservation and Recycling, Год журнала: 2025, Номер 215, С. 108141 - 108141

Опубликована: Янв. 29, 2025

Язык: Английский

---

Recent advancements of biochar additive for construction materials, formulations technology and sustainability

Innovative Infrastructure Solutions, Год журнала: 2025, Номер 10(3)

Опубликована: Фев. 5, 2025

Язык: Английский

---

Characterization of organic–inorganic interfaces in silanized cementitious thin spray-on liners

Journal of Materials Science, Год журнала: 2025, Номер unknown

Опубликована: Фев. 18, 2025

Язык: Английский

---

Study of the corrosion behaviour of reinforcing bars in biochar-added concrete under wet and dry exposure to calcium chloride solutions

Construction and Building Materials, Год журнала: 2024, Номер 420, С. 135509 - 135509

Опубликована: Фев. 28, 2024

Язык: Английский

---

Alterations in rheo-viscoelastic properties of cement composites with biochar incorporation as bio-based admixture

Construction and Building Materials, Год журнала: 2024, Номер 439, С. 137358 - 137358

Опубликована: Июль 9, 2024

Язык: Английский

---

Investigation of the macro performance and mechanism of biochar modified ultra-high performance concrete

Case Studies in Construction Materials, Год журнала: 2024, Номер 21, С. e03595 - e03595

Опубликована: Авг. 6, 2024

Ultra-high performance concrete (UHPC), an extraordinary category of cementitious composites, showcases unparalleled mechanical and durability properties. Given the current disparity in carbon levels environmental hazards associated with cement production, various types biochar materials have been incorporated into composites. This approach offers a mutually advantageous solution, effectively reducing CO2 emissions while simultaneously preserving natural resources. study aims to evaluate use palm shells, waste biomass, as substitute for aggregate UHPC matrix. The investigation focused on replacing 1–40 % sand, specifically considering apricot, date, peach shells at 8 replacement. A comprehensive analysis was carried out total 12 combinations, encompassing control group. For biochar-mortar admixtures, decrease workability density were observed. Replacing 1 sand mortar improved compressive strength, but increasing dosage weakened it. Biochar-mortar demonstrated dual impact drying shrinkage. Mixtures higher dosages showed slight increase permeability. Incorporating led slightly lower electrical flux value. SEM images obtained, highlighting compact morphological structure seen both mortar. MIP test nearly 1.6 times 2-dimensional porosity, from 10.49 (control) 16.83 sample which had 30 biochar. Based results it could be concluded that possesses capability, enhances properties when used partial replacement conventional fine minor fractions.

Язык: Английский

---

Influence of Multi-walled Carbon Nanotube (MWCNT) on flexural behavior and microstructure characteristics of geopolymer concrete beams

Case Studies in Construction Materials, Год журнала: 2024, Номер 20, С. e03317 - e03317

Опубликована: Май 24, 2024

This experimental study delves into the impact of Multi-Walled Carbon Nanotubes (MWCNTs) on Geopolymer Concrete (GPC), investigating their effect compressive strength and load deflection behaviour. MWCNT concentrations ranging from 0.02% to 0.16% were employed examine influence structural performance 1500 mm (L) x 150 (B) (D) concrete beams. The findings derived this investigation yielded several significant conclusions. outcome research identified optimum dosage for enhancing at 0.12%, resulting in a substantial 29.78 MPa. However, surpassing concentration led decline strength. Notably, remarkable 26.62% increase was observed with 0.12% when compared reference specimens. In analysing performance, it that energy absorption capacity (EAC) exhibited consistent behavior up 0.6% addition MWCNT. At inclusion, EAC GPC reached its peak value 6116 kN.mm. Stiffness maintenance mirrored trends 0.1% MWCNT, beyond which decrease stiffness noted higher concentrations. Furthermore, Density Index (DI) beams sustained after DI began increase. Flexural Toughness Factor (FTF) retained 0.06%. declined flexural Additionally, Scanning Electron Microscopy (SEM) images revealed denser internal structure optimal Subsequent additions increased agglomeration, potentially hampering effective interaction between binder, activator within matrix. These contribute obtain optimised superior applications.

Язык: Английский

---

Improved interlayer bonding of 3D printed fiber reinforced geopolymer by healing agents: properties, mechanism, and environmental impacts

Journal of Sustainable Cement-Based Materials, Год журнала: 2025, Номер unknown, С. 1 - 21

Опубликована: Янв. 27, 2025

Язык: Английский

---

Life cycle assessment for biochar systems: a review

Elsevier eBooks, Год журнала: 2025, Номер unknown, С. 395 - 432

Опубликована: Янв. 1, 2025

Язык: Английский

---