在地聚合物混凝土生产中利用基于PFA-GGBS的前体作为常规混凝土的可持续替代品
Jonathan Oti1, Blessing O Adeleke1, Lito R Casabuena1
1Faculty of Computing, Engineering and Science, University of South Wales, Pontypridd CF37 1DL, UK.
Materials (Basel, Switzerland)
|March 27, 2025
概括
这项研究使用地面颗粒高炉渣 (GGBS) 和粉碎飞灰 (PFA) 开发了地质聚合物混凝土. 由此产生的地质聚合物混凝土 (GPC) 的强度与波特兰水泥混凝土相当或优于波特兰水泥混凝土,提供了一种可持续的替代方案,减少了环境足迹.
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.
- 环境科学 环境科学
背景情况:
- 越来越多的环境问题需要替代传统的波特兰水泥,因为它有大量的二氧化碳排放.
- 地质聚合物混凝土 (GPC) 成为一种可持续的建筑材料,利用工业副产品,如地面颗粒高炉渣 (GGBS) 和粉碎飞 (PFA).
研究的目的:
- 通过改变GGBS和PFA比率来优化地质聚合物混凝土混合物.
- 评估开发的GPC混合物的工程性能和环境效益.
- 确定最佳的GPC混合物,最大限度地提高强度并最大限度地减少对环境的影响.
主要方法:
- 使用GGBS和PFA以不同的比例 (50:50到90:10) 制备地质聚合物混凝土混合物.
- 前体被从二氧化烟雾和10M NaOH中提取的酸盐溶液激活.
- 工程性能 (倾斜,压力,分裂拉力,屈曲强度) 根据相关标准进行了测试.
主要成果:
- 地质聚合物混凝土样本的强度值与传统波特兰水泥混凝土的强度值相当或超过.
- 确定了具有不同GGBS-PFA比率的优化混合物.
- 该研究证实了GPC减少的环境足迹,包括更低的能源消耗和温室气体排放.
结论:
- 地质聚合物混凝土是一种可行的,可持续的替代传统混凝土.
- 在GPC中使用GGBS和PFA有助于节约资源和减少碳排放.
- 对GPC的进一步研究可以加速向更绿色建筑实践的过渡.
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