Application of Phosphogypsum in Road Construction

IF 0.3 Q4 ENGINEERING, MULTIDISCIPLINARY

Science & Technique Pub Date : 2021-12-03 DOI:10.21122/2227-1031-2021-20-6-493-498

Ya. N. Kovalev, V. Yaglov, T. A. Chistova, V. V. Girinsky

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引用次数: 2

Abstract

Abstract. Currently the Republic of Belarus is solving the problem of processing a by-product – phosphogypsum, formed in the process of phosphorric acid production. The issue of utilization of phosphogypsum is becoming more and more relevant, and there are several reasons for this: transportation of phosphogypsum to dumps and its storage require large capital investments and operating costs; when creating phosphogypsum dumps, it is necessary to alienate large areas, sometimes even cultivated land; storage of this material in dumps, even with the neutralization of soluble impurities and with the observance of dump operational rules causes irreparable harm to the environment. There are known studies of scientists on the use of phosphogypsum for road construction as a binder for strengthening soils, foundations and repair work. The paper presents the results of experiments on obtaining road-building materials from this waste without converting it into a binder. Based on the research, a technology for the preparation of asphalt concrete mixtures with the use of mineral powder in the form of phosphogypsum dihydrate has been developed.

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磷石膏在道路施工中的应用

摘要目前，白俄罗斯共和国正在解决磷酸生产过程中产生的副产品——磷石膏的处理问题。磷石膏的利用问题变得越来越重要，其原因有以下几点:磷石膏到垃圾场的运输和储存需要大量的资金投资和运营成本;在建造磷石膏堆场时，有必要让出大面积，有时甚至是耕地;将这种材料储存在倾倒场，即使对可溶性杂质进行中和处理并遵守倾倒场操作规则，也会对环境造成无法弥补的损害。科学家们进行了一些已知的研究，将磷石膏用于道路建设，作为加固土壤、地基和修复工作的粘合剂。本文介绍了从这种废物中获得筑路材料而不将其转化为粘合剂的实验结果。在此基础上，开发了以二水磷石膏为原料的矿粉制备沥青混凝土混合料的工艺。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Science & Technique ENGINEERING, MULTIDISCIPLINARY-

自引率

50.00%

发文量

审稿时长

8 weeks