细菌瓦拉斯托尼特混凝土用于可持续的高性能建筑
Priya S Nair1, Rajesh Gupta2, Vinay Agrawal2
1Department of Civil Engineering, Malaviya National Institute of Technology, Jaipur, 302017, Rajasthan, India. 2020rce9031@mnit.ac.in.
Scientific reports
|October 22, 2025
概括
这项研究发现,较低度的微生物联合体 (105 细胞/毫升) 和瓦拉斯托尼特的混凝土显示出更好的机械性能和耐用性. 这种生物混凝土为可持续建筑提供了增强的强度和生态效率.
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.
- 生物技术是生物技术.
背景情况:
- 可持续建筑材料对于减少环境影响至关重要.
- 微生物混凝土具有自我愈合和增强耐用性的潜力.
- 拉斯托尼特是一种矿物添加剂,可以改善混凝土的性能并降低水泥含量.
研究的目的:
- 调查微生物联盟和瓦拉斯托尼特对混凝土性能的影响.
- 评估机械,微观结构和非破坏性特性.
- 评估开发的混凝土的生态效率和可持续性.
主要方法:
- 在109和105细胞/毫升的尿解和非尿解微生物联盟的整合.
- 在5%,10%和15%的替代水平上添加瓦拉斯托尼特.
- 测试机械性能 (压力,屈曲强度),非破坏性评估 (UPV,反弹数) 和微结构分析 (SEM-EDS,XRD,FTIR).
主要成果:
- 较低的微生物度 (105细胞/毫升) 产生了更高的压力强度 (高达41.45%) 和屈曲强度.
- 沃拉斯托尼特的加入提高了混凝土的质量,并观察到最佳性能.
- 微观结构分析显示了石沉积,矩阵密度和耐用性提高.
- 非破坏性测试和回归分析证实了各种属性之间的强烈相关性.
结论:
- 微生物wollastonite混凝土表现出卓越的机械性能和耐用性.
- 较低的微生物度对力量发展更有效.
- 这种生物混凝土为建筑提供了一个可持续的,生态高效的替代方案,具有自我修复能力.
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