铁尾矿地砖的制备及其机理分析

The preparation and micro mechanism of brick materials with iron tailings in Tanshang area

简要介绍了唐山地区铁矿尾矿制备铁尾矿砖的试验研究,并设计制备铁尾矿砖生产工艺流程和最佳配比。研究结果表明,以铁尾矿为主要材料,通过掺加适量的水泥、粉煤灰、粗骨料和一定的外加剂,经常温常压养护28天后,抗压强度可达到28.30 MPa,抗折强度为5.63 MPa,同时长期性能研究也表明可以制备出合格的铁尾矿地砖。为铁尾矿大量资源化利用提供了一条新的途径,同时还对铁尾砖的微观机理作了初步研究。

This paper discussed the experimental results of exploiting brick materials with iron tailing materials in Tanshang area. Through preparation of iron tailing bricks, the technical flow and production proportion was obtained. The results show that a burning-and steam curing-free brick product with a compressive strength of 28.30 MPa and Flexural strength of 5.63 MPa as the following： iron tailing; fly ash; sand; CaO; gypsum; cement. And long-term properties of a burning-and steam curing-free brick is also studied by experiments in this paper. Put forward a new technique of making materials with iron tailing.At the same time, the micro mechanism of iron tailing brick was also studied with X-Ray Diffractometer （XRD） and Scanning Electron Microscope （SEM）.