Department of Civil Engineering, Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi, Pakistan.
University of Jeddah, College of Engineering, Department of Civil and Environmental Engineering, Jeddah, Saudi Arabia.
PLoS One. 2024 Oct 8;19(10):e0307103. doi: 10.1371/journal.pone.0307103. eCollection 2024.
The infrastructure boom has driven up cement demand to 30 billion tons annually. To address this and promote sustainable construction, researchers are developing solutions for carbon-neutral building practices, aiming to transform industrial waste into an eco-friendly alternative. This study aims to develop and enhance the mechanical and durability properties of alkali-activated composites (AACs) by incorporating varying amounts (5, 10, 15, and 20%) of finely ground bagasse ash (GBA) and polyvinyl alcohol (PVA) fibers. Results indicate that higher GBA content initially reduces the 7th and 14th-day strength but results in increased strength at later ages. The optimum 28-day strength is achieved with a 10% GBA content, leading to a 10% increase in compressive strength, 8% increase in tensile strength, and 12% increase in flexural strength. Additionally, the incorporation of GBA enhanced the resistance of the composite to chloride ingress, thus reducing its conductance and increasing the overall durability. This study demonstrated the potential of GBA as an eco-friendly material, emphasizing the significance of tailored AACs formulations for durable and sustainable construction practices.
基础设施的繁荣推动了水泥需求达到每年 300 亿吨。为了解决这个问题并促进可持续建筑，研究人员正在开发碳中和建筑实践的解决方案，旨在将工业废物转化为环保的替代品。本研究旨在通过掺入不同量（5%、10%、15%和 20%）的细磨甘蔗渣灰（GBA）和聚乙烯醇（PVA）纤维，来开发和增强碱激活复合材料（AACs）的机械和耐久性性能。结果表明，较高的 GBA 含量最初会降低第 7 天和第 14 天的强度，但会在后期增加强度。在 28 天龄期时，最优的强度是在 10%GBA 含量下实现的，这导致抗压强度增加了 10%，抗拉强度增加了 8%，抗弯强度增加了 12%。此外，GBA 的掺入增强了复合材料对氯离子渗透的抵抗力，从而降低了其电导率并提高了整体耐久性。本研究证明了 GBA 作为一种环保材料的潜力，强调了定制 AACs 配方在耐用和可持续建筑实践中的重要性。
