探索预处理和颗粒大小变化的影响,化混凝土的性能
Dhiraj Agrawal1, Khalid Ansari2, Uday Waghe1
1Department of Civil Engineering, Yeshwantrao Chavan College of Engineering (YCCE), Nagpur, 441110, India.
Scientific reports
|April 3, 2025
概括
这项研究研究了在混凝土中使用预处理,废弃的轮胎颗粒. 预处理的化混凝土 (RC) 显示出与控制混凝土相似的机械性能,耐磨性更好.
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:
- 建筑材料面临着日益增长的需求,需要可持续的替代品.
- 将废弃材料 (如废弃轮胎) 回收为建筑部件提供了环境效益.
- 混凝土 (RC) 是一种新兴材料,有可能利用废.
研究的目的:
- 评估颗粒大小和预处理对混凝土 (RC) 硬化性能的影响.
- 为了比较RC的性能与未经处理和预处理的颗粒与对照混凝土.
- 评估RC的机械和非常规性质.
主要方法:
- 用未经处理和预处理的颗粒 (0-20%以5%的增量) 代替细聚合物的体积测量.
- 预处理方法包括氧化 (NaOH) 和含有NaOH的烟.
- 评估新鲜性质 (密度,可加工性) 和硬化性质 (压缩性,曲性,抗拉强度,磨损性,抗冲击性,吸水性).
主要成果:
- 控制混凝土的机械性能与控制混凝土相当.
- 使用高达10%的预处理纤维取代的RC实现了61.5MPa的压力强度.
- 屈曲和裂纹拉力强度超过5.6MPa.
- 耐磨性范围为0.98至1.46毫米的RC用纤维 (高达20%的替代) 对比1.34毫米的控制混凝土.
- 使用预处理颗粒的混凝土性能优于使用未处理颗粒的混凝土,特别是较粗的尺寸.
结论:
- 预处理显著提高了混凝土的性能.
- 使用预处理的轮胎制成的混凝土显示出作为可持续建筑材料的前景.
- 优化的预处理和颗粒大小可以产生具有理想工程性质的化混凝土.
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