一个基于性能的测试,以减轻由于性漂水而导致地聚合物混凝土表面浮花的风险
Mahdi Babaee1,2, Arnaud Castel3
1WSP, Sydney, NSW 2000, Australia.
Materials (Basel, Switzerland)
|August 10, 2024
概括
地质聚合物混凝土为普通波特兰水泥 (OPC) 混凝土提供了一个可持续的替代品. 本研究开发了一种基于性能的测试,以管理性和花,这对地质聚合物混凝土的耐用性和美学至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 可持续的建筑材料 可持续的建筑材料
- 混凝土技术 混凝土技术
背景情况:
- 地质聚合物混凝土是普通波特兰水泥 (OPC) 混凝土的可持续替代品,提供更低的碳含量.
- 在基于酸盐的地质聚合物中的浸出会引起花花,这在暴露于湿度的混凝土表面上是一个美学问题.
- 了解影响性浸出和花的因素对于地球聚合物混凝土的广泛采用至关重要.
研究的目的:
- 调查含量和飞灰 (FA) /地面颗粒高炉渣 (GGBS) 质量比对地质聚合物混凝土中液和花朵的影响.
- 开发一种实用的,基于性能的测试方法,以评估地质聚合物混凝土的浮花风险.
- 为暴露于湿度的地质聚合物混凝土表面建立基于性能的要求,并对浮花风险进行分类.
主要方法:
- 地质聚合物糊筒的制造和环境固化.
- 将样品浸入去离子化水中,以测量浸出离子度.
- 部分浸泡测试以评估花潜力并开发基于性能的测试方法.
主要成果:
- 这项研究揭示了影响地质聚合物材料中花产品形成的参数的复杂相互作用.
- 由于地质聚合物配方的多样性,直接将混凝土混合变量与浮花风险联系起来具有挑战性.
- 一种基于性能的新型测试方法已成功开发并对地质聚合物混凝土进行校准.
结论:
- 已经建立了一种实际的,基于性能的测试方法,用于评估和管理地质聚合物混凝土中的花风险.
- 已经定义了四个不同的风险类别,对地质聚合物混凝土表面提出了相应的适当暴露条件.
- 这项研究为在各种环境条件下可靠地质聚合物混凝土的应用提供了关键的见解,解决了关键的美学和耐用性问题.
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