制备一个高性能的基地质聚合物填充材料:使用塔古奇方法优化配方
Sen Yang1, Hongguang Zhu1, Sen Pang2
1School of Mechanics & Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China.
Materials (Basel, Switzerland)
|August 12, 2023
概括
这项研究开发了一种具有成本效益,高强度的基地质聚合物填充材料 (GBGBM) 用于地下水库. 这种新材料显著提高了不受限制的压力强度 (UCS),并与传统水泥填充相比降低了CO2排放和成本.
科学领域:
- 地质技术工程 地质技术工程
- 材料科学 材料科学 材料科学
- 可持续建筑 可持续建筑
背景情况:
- 地下水库的建设需要高强度的填充材料.
- 现有的材料往往是昂贵的,缺乏足够的强度.
- 开发经济和高性能替代品至关重要.
研究的目的:
- 开发一种经济高效且高强度的基地质聚合物填充材料 (GBGBM).
- 使用塔古奇方法优化GBGBM属性.
- 将GBGBM性能与传统的基水泥填充材料 (GBCBM) 进行比较.
主要方法:
- 采用塔古奇方法进行实验设计 (4个因素,5个级别,25个实验).
- 研究了层分级,砂比,水结合剂 (w/b) 和聚合剂-结合剂 (a/b) 比率对工作特征和不受限制的压力强度 (UCS) 的影响.
- 利用信号与噪声比率分析进行优化,并使用XRD,SEM,MIP进行微观结构分析.
主要成果:
- 优化的GBGBM (50%分级,55%沙,a/b=2.5,w/b=0.64) 实现了251.2毫米的沉降,在3天后达到5.27MPa的UCS,在28天后达到17.65MPa的UCS.
- 与GBCBM相比,早期UCS增加了131.14%,晚期UCS增加了49.45%.
- GBGBM 的二氧化碳排放量降低了 78.16%,能源消耗降低了 73.45%,成本降低了 24.82%.
结论:
- 开发的GBGBM提供了卓越的机械性能和显著的环境和经济效益.
- GBGBM是一种可行的,可持续的,成本效益高的替代品GBCBM用于地下水库填充.
- 塔古奇方法在优化GBGBM成分方面被证明是有效的.
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