Structures, Journal Year: 2024, Volume and Issue: 68, P. 107167 - 107167
Published: Aug. 28, 2024
Language: Английский
Journal of Building Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 111959 - 111959
Published: Feb. 1, 2025
Language: Английский
Citations
3
Case Studies in Construction Materials, Journal Year: 2024, Volume and Issue: 21, P. e03595 - e03595
Published: Aug. 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.
Language: Английский
Citations
4
Case Studies in Construction Materials, Journal Year: 2025, Volume and Issue: unknown, P. e04233 - e04233
Published: Jan. 1, 2025
Language: Английский
Citations
0
Journal of Sustainable Cement-Based Materials, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 19
Published: Feb. 17, 2025
Language: Английский
Citations
0
Deleted Journal, Journal Year: 2025, Volume and Issue: 2(1)
Published: Feb. 17, 2025
Language: Английский
Citations
0
Materials, Journal Year: 2025, Volume and Issue: 18(4), P. 904 - 904
Published: Feb. 19, 2025
This study investigated the use of activated biochar derived from olive stone waste and recycled masonry aggregates in porous mortar mixtures assessed their behaviour under accelerated carbonation curing conditions. Three were produced, incorporating 0%, 5%, 10% by volume. The physical, chemical, mechanical properties mortars analysed, including compressive strength, flexural water absorption, porosity, CO2 capture capacity. Additionally, calorimetry tests performed on cement pastes with 0.5%, 1%, 3%, 15%, 20% to evaluate impact setting times ensure compatibility between cement. results showed that addition improved properties, particularly curing, whereas active (AcB) significantly enhanced strengths. Furthermore, incorporation boosted efficiency, mix showing up 147% higher uptake, compared a control. These findings suggest can be effectively utilised develop sustainable construction materials thereby contribute carbon sequestration reduction environmental impacts. research fills gaps current knowledge stones cement-base
Language: Английский
Citations
0
Sustainability, Journal Year: 2025, Volume and Issue: 17(6), P. 2516 - 2516
Published: March 13, 2025
Innovative and creative solutions are needed to reduce the substantial carbon footprint of concrete industry using low-carbon materials. Biochar has been recognised as an environmentally efficient material for production. Also, it is required build interpretable predictive models advance modelling-based mix design optimisation. This study uses biochar a cement substitute in assesses mechanical strength lab tests followed by modelling approaches. Two types derived from olive pits wood were used 2.5 5 wt.% cement. Cubes, cylinders, beams cast test concrete’s compressive, tensile, flexural strength. The data develop validate prediction compressive (CS) linear regression gene expression programming (GEP) techniques. Moreover, SHapley Additive exPlanation (SHAP) analysis was performed evaluate influence parameters on CS. results showed that pit more effective enhancing than due reduced particle size. optimal replacement levels CS split tensile GEP model effectively captured non-linear behaviour accurate approach adopted this can be optimise formulations concrete. These findings highlight potential sustainable substitute, contributing development greener with improved performance. Integrating into production significantly lower industry’s footprint, promoting responsible construction practices while maintaining structural integrity.
Language: Английский
Citations
0
Case Studies in Construction Materials, Journal Year: 2025, Volume and Issue: unknown, P. e04542 - e04542
Published: March 1, 2025
Language: Английский
Citations
0
Construction and Building Materials, Journal Year: 2025, Volume and Issue: 475, P. 141134 - 141134
Published: April 11, 2025
Language: Английский
Citations
0
Sustainability, Journal Year: 2024, Volume and Issue: 16(23), P. 10162 - 10162
Published: Nov. 21, 2024
The increasing demand for cement, which is being driven by global urbanization and infrastructure expansion, necessitates sustainable alternatives to be used as construction materials. Cement-based composites, a prevalent material, are known their high carbon footprint. Consequently, exploring urgently needed curb the environmental impact of sector capturing dioxide (CO2). Thus, utilizing biochar (BC) in cement-based either additive or aggregate replacement could green approach, producing enhanced composites with capabilities CO2 sequestration. This review investigates BC-modified cement performing scientometric assessment Scopus database thorough manual review. A Scopus-indexed publications retrieved from 2010–2024 was conducted highlight key research trends, including influential authors, frequently cited works, countries, institutions. findings provide comprehensive overview current situation BC applications construction. revealed that Construction Building Materials journal most prolific source (n = 34), followed Gupta, S author 11), China leading country field 56). It also highlights emerging areas use sequestering potential future directions. Additionally, discusses sources production technologies characteristics. influence inclusion on fresh properties, its mechanical durability characteristics, capture capabilities, impacts modified composites. has been noted addition 1% 2% can increase performance, whereas, beyond 5% 6% replacement, they experienced decline compared non-modified reduced flow characteristics due porous morphology hydrophobic nature but shown improved internal curing shrinkage. microstructure composite through pore refinement, filling ability particles attributed specific surface area size. sequestration exploited create low carbon-negative building materials study directions further studies implementation strategies material at large scale.
Language: Английский
Citations
2