Cement-based wave-absorbing material and preparation method thereof: Fid-Bau Portal

Cement-based wave-absorbing material and preparation method thereof

LIU LEI / MU WUDI / CAO WENMIN / ZHENG XIN

The invention discloses a cement-based wave-absorbing material and a preparation method thereof. The cement-based wave-absorbing material comprises a matrix and a wave-absorbing reinforced phase, wherein the wave-absorbing reinforced phase is embedded in the matrix; the matrix is concrete composed of cement, sand and water, and the wave-absorbing reinforced phase is a spiral fiber wave-absorbing body; the cement-based wave-absorbing material comprises the following components in parts by mass: 10-30 parts of cement, 20-55 parts of sand, 10-20 parts of water and 1-10 parts of a spiral fiber wave-absorbing body; the preparation method comprises the following steps: preparing materials, preparing concrete, arranging the spiral fiber wave-absorbing bodies, molding the concrete and the like. According to the cement-based wave-absorbing material, the spiral fiber wave-absorbing bodies are embedded in the concrete matrix, so that the cement-based wave-absorbing material is low in cost, wide in absorption frequency band and excellent in mechanical property. The preparation method of the cement-based wave-absorbing material provided by the invention adopts a conventional process of civil engineering, is simple to operate, has no special requirements on operators, and is suitable for batch production.

本发明公开一种水泥基吸波材料及其制备方法，该水泥基吸波材料包括基体和吸波增强相，所述吸波增强相包埋在所述基体内部；所述基体为由水泥、砂子和水构成的混凝土，所述吸波增强相为螺旋型纤维吸波体；所述水泥基吸波材料中各组分的质量份配比为水泥10～30份、砂子20～55份、水10～20份、螺旋型纤维吸波体1～10份；该制备方法包括配料、制备混凝土、排布螺旋型纤维吸波体和混凝土入模成型等步骤。本发明通过在混凝土基体内部包埋螺旋型纤维吸波体，使得该水泥基吸波材料成本低，吸收频段宽以及力学性能优异。本发明提供的水泥基吸波材料的制备方法所采用的工艺为土建工程的常规工艺，操作简单，对操作人员无特殊要求，适合于批量生产。

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