Khan Muhammad Adeel, Zhang Boshan, Ahmad Mahmood, Niekurzak Mariusz, Khan Muhammad Salman, Sabri Sabri Mohanad Muayad, Chen Weizhen
College of Civil Engineering, Department of Bridge Engineering, Tongji University, Shanghai, 200092, China.
Institute of Energy Infrastructure, Universiti Tenaga Nasional, Kajang, 43000, Malaysia.
Sci Rep. 2025 Jan 9;15(1):1385. doi: 10.1038/s41598-025-85363-x.
Addressing environmental challenges such as pollution and resource depletion requires innovative industrial and municipal waste management approaches. Cement production, a significant contributor to greenhouse gas emissions, highlights the need for eco-friendly building materials to combat global warming and promote sustainability. This study evaluates the simultaneous use of Sugarcane Bagasse Ash (SCBA) and Stone Dust (SD) as partial replacements by volume for cement and sand, respectively, at varying ratios in eco-strength concrete mixes designed for 28 MPa (ES-28) and 34 MPa (ES-34), emphasizing their economic and environmental benefits. The influence of SCBA and SD on workability, mechanical properties, and durability were experimentally investigated. Results reveal that for ES-28, with 9% SCBA and 50% SD, compressive and tensile strengths were nearly equal to the control mix, while flexural strength improved by 6.86%. For ES-34, with 9% SCBA and 50% SD, compressive strength was enhanced by 10.16%, tensile strength by 11.68%, and flexural strength by 5.22%, compared to the control mix. This improvement is attributed to pozzolanic reactions, enhanced particle packing, and optimal curing conditions. However, water absorption increased significantly, with ES-28 showing a 31.61% rise and ES-34 a 22.32% rise when SCBA was 9% and SD was 50%. These results highlight the trade-offs between mechanical performance and durability. The optimized mix, derived from response surface analysis, demonstrates significant potential as a sustainable alternative to conventional concrete, aligning with environmental and structural performance objectives.
应对污染和资源枯竭等环境挑战需要创新的工业和城市废物管理方法。水泥生产是温室气体排放的重要来源，这凸显了使用环保建筑材料来应对全球变暖并促进可持续发展的必要性。本研究评估了在设计用于28兆帕（ES - 28）和34兆帕（ES - 34）的生态强度混凝土混合料中，分别以不同比例同时使用甘蔗渣灰（SCBA）和石粉（SD）按体积分别部分替代水泥和沙子的情况，强调了它们的经济和环境效益。通过实验研究了SCBA和SD对工作性、力学性能和耐久性的影响。结果表明，对于ES - 28，当含有9%的SCBA和50%的SD时，抗压强度和抗拉强度几乎与对照混合料相等，而抗弯强度提高了6.86%。对于ES - 34，当含有9%的SCBA和50%的SD时，与对照混合料相比，抗压强度提高了10.16%，抗拉强度提高了11.68%，抗弯强度提高了5.22%。这种改善归因于火山灰反应、颗粒堆积增强和最佳养护条件。然而，吸水率显著增加，当SCBA为9%且SD为50%时，ES - 28的吸水率上升了31.61%，ES - 34的吸水率上升了22.32%。这些结果突出了力学性能和耐久性之间的权衡。通过响应面分析得出的优化混合料显示出作为传统混凝土可持续替代品的巨大潜力，符合环境和结构性能目标。
