在经过处理的混合循环聚合混凝土混凝土中,结合橄砂的粘合强度的影响
Anmol Basnett1, Anandh Sekar2, Sindhu Nachiar1
1Department of Civil Engineering, SRM Institute of Science and Technology, Kattankulathur, Chennai, India.
Scientific reports
|July 2, 2025
概括
这项研究表明,与传统混凝土相比,用经过处理的混合循环聚合物和橄砂 (TMRAOS) 制成的混凝土具有优越的结合强度和机械性能. TMRAOS混凝土是可持续基础设施的环保和结构高效材料.
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:
- 对可持续建筑材料的日益增长的需求需要减少原始资源的使用和建筑垃圾.
- 回收聚合物和替代填料为环境可持续性和改善混凝土性能提供了可行的解决方案.
- 调查结合强度对于理解新型混凝土混合物的铁杆混凝土接口行为至关重要.
研究的目的:
- 为了评估三种混凝土混合物的结合强度的影响:混合回收聚合物 (MRA),处理混合回收聚合物 (TMRA) 和与橄砂 (TMRAOS) 的TMRA.
- 评估这些混凝土混合物的机械性能和微观结构特征.
- 通过有限元模型 (FEM) 验证实验结果.
主要方法:
- 准备和测试MRA,TMRA和TMRAOS混凝土混合物.
- 实验分析包括压力强度测试和拉出测试.
- 使用高分辨率扫描电子显微镜 (HRSEM) 和有限元模型 (FEM) 的微结构评估.
主要成果:
- 加入经过处理的MRA和橄砂显著提高了钢筋混凝土的结合强度.
- TMRAOS混凝土表现出优越的机械强度 (相对于MRA和TMRA分别提高了28.55%和11.90%).
- 结合强度从4.48-5.85 MPa (MRA) 增加到6.11-8.05 MPa (TMRA) 和6.35-8.67 MPa (TMRAOS),压力分布和裂纹减少得到改善.
结论:
- TMRAOS混凝土表现出显著增强的结合强度和机械性能.
- 该研究验证了TMRAOS混凝土作为传统混凝土的环保和结构高效替代品.
- TMRAOS混凝土具有可持续基础设施应用的巨大潜力,提供更好的耐用性和性能.
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