Open Access

ARTICLE

Research and Application Status and Development Trend of Alkali-Activated Binder Powder for Mine Backfill

by Qian Zhou¹, Yueyue Zhang¹, Juanhong Liu^1,2,3,*, Aixiang Wu^1,2, Hongjiang Wang^1,2

1 School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing, 100083, China
2 Key Laboratory of the Ministry of Education of China High-Efficient Mining and Safety of Metal Mines, Beijing, 100083, China
3 Beijing Key Laboratory of Urban Underground Space Engineering, Beijing, 100083, China

* Corresponding Author: Juanhong Liu. Email:

(This article belongs to the Special Issue: Circular Economy in the Development of Eco-Friendly Materials for Construction)

Journal of Renewable Materials 2022, 10(12), 3185-3199. https://doi.org/10.32604/jrm.2022.020316

Received 16 November 2021; Accepted 11 January 2022; Issue published 14 July 2022

Abstract

To improve the economic and social benefits of mining and backfill, it is necessary to find the backfill materials suitable for mineral mining, improve the various properties of the filling materials, and develop low cost, high performance new filling materials. Portland cement is neither environmentally friendly nor economical. Currently, we have begun to study and apply some industrial waste, such as slag, fly ash, and other solid wastes, with certain activities as the primary component of cementing material that will not only meet the technical requirements of filling, but also comprehensively utilize industrial waste and possess a benign, sustainable lifecycle for environmental protection. This study expounds the composition and reaction mechanism of alkali-activated binder powder used for cemented paste backfill material, summarizes the research and application status of alkaliactivated binder powders, including mechanics, durability, economic and environmental, and discusses future development directions for mine binder powders. It needs to continue to expand the utilization range of solid waste and improve the utilization rate of solid waste in the future. The development and research of this binder powder plays an important role in the progress of filling technologies. Hence, the research about alkali-activated binder powder contains great development potential and broad prospects.

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Keywords

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