设计可持续的无水泥组合物,使用大米灰来提高下一代生态区块的机械性能
Marian Valenzuela1,2, Víctor Tuninetti3,4, Gustavo Ciudad5,6
1Doctoral Program in Sciences of Natural Resources, Universidad de La Frontera, Casilla 54-D, Temuco, 4780000, Chile. m.valenzuela16@ufromail.cl.
Scientific reports
|April 28, 2025
概括
米灰有效地强化压缩土块,提高它们的机械性能. 这种可持续的添加剂在智利当地建筑中为水泥提供了一个有希望的替代品,增强了抗震能力.
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:
- 在智利,压缩土块 (CEB) 与火相比,面临压力强度和抗震能力的局限性.
- 这些性能差距阻碍了当地土壤用于建筑的利用.
- 米灰 (RHA) 是一种潜在的低价值,可持续的添加剂,用于材料增强.
研究的目的:
- 调查RHA作为CEB的稳定剂,使用来自智利考奎内斯省当地土壤制成的CEB.
- 为了优化这些CEB的机械性能和强度.
- 为了评估RHA作为潜在的水泥替代品在土建筑.
主要方法:
- 收集并准备当地土壤和RHA.
- 使用新型圆柱形多乳酸模具制造的CEB,压缩在10MPa.
- 通过优化的实验设计,评估了九种RHA与土壤的混合物.
- 通过统计分析评估机械性能 (压力强度,弹性模量,屈服强度) 和断裂分析.
主要成果:
- 获得的最大压力强度为3.3 MPa.
- 与纯土 CEB 相比,最佳的 RHA 稳定 CEB 混合物显示强度增加了 60%.
- 统计分析证实了最佳组合的重要性,并确定了机械性能的趋势.
结论:
- RHA显著提高了CEB的机械性能和强度.
- RHA是水泥的可行和可持续替代品,用于稳定地面建筑材料.
- 优化的RHA稳定CEB显示了对易地震地区的性能改善.
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