Althaqafi Essam, Ali Tariq, Qureshi Muhammad Zeeshan, Islam Saiful, Ahmed Hawreen, Ajwad Ali, Almujibah Hamad, Khan Muhammad Adil
Civil Engineering Department, College of Engineering, King Khalid University, 61421, Abha, Saudi Arabia.
Department of Civil Engineering, Swedish College of Engineering and Technology, Wah, 47080, Pakistan.
Sci Rep. 2024 Oct 30;14(1):26109. doi: 10.1038/s41598-024-76360-7.
The major challenge for the construction industry is to design and produce sustainable construction materials that are efficient in their performance and can be affordable for construction projects. The objective of this study is to determine the viability of incorporating waste products such as sugarcane bagasse ash (SCBA) to produce concrete with polypropylene (PP) fibers. SCBA is an industry waste that has certain pozzolanic properties, however, it shows limited mechanical properties when used as a cement replacement. To improve the mechanical and durability performance, metakaolin (15%) and PP fiber (0.5%, 1%, and 1.5%) were incorporated in the SCBA blend as a ternary additive. Some of the important characteristics explored include compressive strength, tensile strength, density, water absorption, acid resistance, and sorptivity. The study reveals that the incorporation of 15% metakaolin in the composite enhanced the compressive strength by 7%, 8.2%, and 9.1% for PP fiber additions of 0.5%, 1%, 1.5%, while the acid resistance enhanced by 4%, 6% and 8% relative to the control mix for the same value of pp fiber. Furthermore, cost evaluation confirms that the overall costs of concrete with 15% metakaolin and 5% SCBA were 12.2% less than the control concrete, thus making this option economically feasible. This research proves that the inclusion of SCBA, metakaolin, and PP fibers into the concrete mixture brings a sustainable approach that enhances mechanical properties and durability while assisting sugar manufacturing plants in the proper disposal of wastes.
建筑行业面临的主要挑战是设计并生产出性能高效且造价适宜于建筑项目的可持续建筑材料。本研究的目的是确定掺入诸如甘蔗渣灰（SCBA）等废品以生产含聚丙烯（PP）纤维混凝土的可行性。SCBA是一种具有一定火山灰特性的工业废料，然而，当其用作水泥替代品时，其力学性能有限。为了提高力学性能和耐久性，将偏高岭土（15%）和PP纤维（0.5%、1%和1.5%）作为三元添加剂掺入SCBA混合物中。所探究的一些重要特性包括抗压强度、抗拉强度、密度、吸水性、耐酸性和吸着性。研究表明，在复合材料中掺入15%的偏高岭土，对于添加了0.5%、1%、1.5%PP纤维的情况，抗压强度分别提高了7%、8.2%和9.1%，而对于相同PP纤维含量，相对于对照混合物，耐酸性分别提高了4%、6%和8%。此外，成本评估证实，含15%偏高岭土和5%SCBA的混凝土总成本比对照混凝土低12.2%，因此该方案在经济上可行。本研究证明，将SCBA、偏高岭土和PP纤维掺入混凝土混合物带来了一种可持续的方法，既能提高力学性能和耐久性，又能帮助制糖厂妥善处理废料。
