提高高性能混凝土的可持续性:整合废旧轮胎用于创新
Dhipan Aravind Singaravel1, Pavalan Veerapandian2, Silambarasan Rajendran3
1Department of Civil Engineering, Annapoorana Engineering College (Autonomous), Salem, Tamil Nadu, India.
Scientific reports
|February 26, 2024
概括
将废旧轮胎整合到高性能混凝土 (HPC) 中,将沙子取代高达10%,显示出最小的强度损失. 这种替代增强了柔性和阻尼性能,提供了有前途的可持续建筑应用.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 可持续建筑 可持续建筑
背景情况:
- 高性能混凝土 (HPC) 对于现代基础设施至关重要.
- 废旧轮胎提出了处置挑战和材料创新的机会.
- 加入回收材料可以改善混凝土的性能和环境影响.
研究的目的:
- 调查用废旧轮胎部分替换沙子对HPC性能的影响.
- 为了确定平衡强度和动态特征的最佳更换百分比.
- 评估使用废旧轮胎在结构混凝土应用中的可行性.
主要方法:
- 在HPC混合物中系统地替换天然沙子,使用不同百分比 (5%,10%,15%) 的0.6毫米颗粒.
- 全面测试新生和硬化混凝土的性能,包括可加工性,压力强度,抗拉强度,弹性模量和阻尼系数.
- 探索补偿措施,如增加细含量和矿物添加剂,以减轻强度降低.
主要成果:
- 与对照HPC相比,用颗粒取代高达10%的沙子导致了最小的强度降低.
- 15%的颗粒更换导致混凝土强度显著下降.
- 的结合大大提高了混凝土的柔性和阻尼系数,提高了动态性能.
- 补偿措施未能在15%的替代水平上完全抵消强度的减少.
结论:
- 控制废旧轮胎的整合,高达10%的沙子替代,可用于增强HPC的动态性能.
- 更高的更换率 (15%) 损害了结构完整性,这表明一个最佳的包容值.
- 废轮胎替代提供了一种可持续的方法,用于改善具体建筑需求的混凝土的阻尼性和可塑性.
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