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Mechanical Behavior of White Ordinary Portland Cement Paste with Iron Oxide Powders Containing Arsenic

机译：含有砷的氧化铁粉末白色普通波特兰水泥浆料的力学行为

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This paper is about the use and stabilization of iron oxide based powders with arsenic contents coming from the purification of water. Cement paste samples with 0.0, 2.5, 10 and 20wt% of waste were fabricated by mixing mechanically all components. There are two main positive impacts of using this waste, first, this waste is produced in large amounts worldwide, and therefore the stabilization has a significant impact for the environment. Second, the waste can be used as an admixture and filler for cement, and therefore reduce the amount of cement in the concrete, which has a major impact in the CO_2 footprint since cement industry produces a lot of this gas. Compressive strength and density tests were tested after 28 days. Microstructure was analyzed with scanning electron microscopy and x-ray diffraction. Results show that compressive strengths greater than 20 MPa were obtained and the samples had calcite, portlandite and ettringite phases.
机译：本文是关于使用来自水净化的砷含量的氧化铁基粉末的使用和稳定。通过机械混合所有组分制备0.0,2.5,10和20wt％的水泥浆料样品。首先，使用这种废物有两个主要的积极影响，这垃圾在全球范围内大量生产，因此稳定对环境产生了重大影响。其次，废物可以用作水泥的混合物和填料，因此减少混凝土中的水泥量，这在CENCE行业产生了很多这种气体的情况下，在CO_2足迹中产生了重大影响。 28天后测试压缩强度和密度试验。用扫描电子显微镜和X射线衍射分析微观结构。结果表明，获得大于20MPa的抗压强度，并将样品具有方解石，波特兰石和Ettringite阶段。

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