Trialling one-part geopolymer production including iron ore tailings as fillers

被引：7
|
作者：
Mazzinghy, Douglas B. [1 ]
Figueiredo, Ricardo A. M. [2 ]
Parbhakar-Fox, Anita [3 ]
Yahyaei, Mohsen [4 ]
Vaughan, James [5 ]
Powell, Malcolm S. [6 ]
机构：
[1] Univ Fed Minas Gerais, Met Mat & Min Engn, Belo Horizonte, MG, Brazil
[2] Natl Min Agcy, Tailings Dam Safety Div, Belo Horizonte, MG, Brazil
[3] Univ Queensland, WH Bryan Min & Geol Res Ctr, Brisbane, Qld, Australia
[4] Univ Queensland, Julius Kruttschnitt Mineral Res Ctr, Brisbane, Qld, Australia
[5] Univ Queensland, Sch Chem Engn, Brisbane, Qld, Australia
[6] Univ Queensland, Sustainable Minerals Inst, Brisbane, Qld, Australia
来源：
INTERNATIONAL JOURNAL OF MINING RECLAMATION AND ENVIRONMENT | 2022年 / 36卷 / 05期
关键词：
Mining waste; one-part geopolymer; circular economy; sustainability; tailings dam; ALKALI-ACTIVATED MATERIALS; SODIUM-SILICATE; MINE TAILINGS; FLY-ASH; WASTE;
D O I：
10.1080/17480930.2022.2047271
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Mining is facing a transformation in terms of environmental and social performance with improved mine waste management practices required. The valorisation of iron ore tailings, a fine material rich in silica, should be sought as it can be used in geopolymers. In this study a methodology to produce a one-part geopolymer using iron ore tailings as fillers is presented. All experiments used 50 wt.% of tailings with varying proportions of activators tested. The best result of compressive strength achieved is 48.1MPa after 28 days curing at room temperature. This study demonstrates the potential application for using geopolymers as future construction materials.
引用
收藏
页码：356 / 367
页数：12
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