Novel anti-radiation ultra-high-performance concrete and preparation method thereof: Fid-Bau Portal

Novel anti-radiation ultra-high-performance concrete and preparation method thereof

LYU YAJUN / GUAN JUNFENG / BAI WEIFENG / CHEN JIHAO / QIN YIMING / FAN FUJUN / XU JUNXIANG

The invention discloses novel anti-radiation ultra-high-performance concrete and a preparation method thereof, belonging to the technical field of anti-radiation concrete. The novel anti-radiation ultra-high-performance concrete is prepared by partially or completely replacing fine aggregate in the ultra-high-performance concrete with magnetite powder in an isometric manner. The ultra-high-performance concrete is prepared from the following raw materials: a cementing material, fine aggregate, a high-efficiency water reducing agent, water and high-tensile-strength fibers. According to the invention, the magnetite powder is used for partially or completely replacing the fine aggregate in the ultra-high-performance concrete in the isometric manner, so the prepared MUHPC has high density, excellent radiation resistance, good working performance, satisfactory static and dynamic compressive strength and good high temperature resistance.

本发明公开了一种新型防辐射超高性能混凝土及其制备方法，属于防辐射混凝土技术领域。所公开的新型防辐射超高性能混凝土为利用磁铁矿粉部分或全部等体积替代超高性能混凝土中的细骨料制备得到；所述超高性能混凝土的原料包括：胶凝材料、细骨料、高效减水剂、水和高抗拉强度纤维。本发明通过利用磁铁矿粉部分或全部等体积替代超高性能混凝土中的细骨料，制备的MUHPC具有高密度、优异的抗辐射性、良好的工作性能、令人满意的静态和动态抗压强度，以及良好的耐高温性能。

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