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前言随着我国经济的飞速发展,基础设施、工业与民用建筑近年来迅猛增加,使得混凝土的用量也与日俱增,对天然砂石资源的需求越来越大。天然砂石的开采会破坏河床河道,造成水土流失等一系列环境问题,且目前我国天然砂石资源也面临着枯竭。因此发展机制砂,大力推广尾矿的再利用,既能满足较大需求的用量,也符合国家制定的建立循环经济发展模式的政策。本文以河北迁安铁尾矿砂为研究对象,通过对铁尾矿砂自身材性
Preface With the rapid economic development in our country, the infrastructure, industrial and civil buildings have increased rapidly in recent years, making the use of concrete also increasing, and the demand for natural gravel resources is increasing. Natural sand and gravel mining will destroy the riverbed, resulting in a series of environmental problems such as soil erosion, and now our country’s natural gravel resources are also facing depletion. Therefore, the development of sand, vigorously promote the recycling of tailings, both to meet the larger demand for the amount, but also in line with the development of the country to establish a recycling economy development model of the policy. In this paper, Hebei Iron Mine tailings iron ore as the object of study, through the iron tailings of their own material