Affiliation:
1. Shenyang Jianzhu University
Abstract
Abstract
Due to the large amount of carbon dioxide emitted by cement, more and more people are concerned about the sustainability and decarbonization of the cement industry. At present, the most common practice is to incorporate solid waste into concrete to achieve urban sustainability. Iron Ore Tails (IOTs) can serve as SCMs using various activation methods, but comprehensive research is lacking on the calcium phase solid waste of the ternary SCMs system (IOT, steel slag, and desulfurization ash) based on IOTs. In this paper, the following parameters are selected when studying the factors affecting the strength of ISD system. These parameters are water-binder ratio, grinding time of iron tailings, admixture ratio and chemical activator content. The study also analyzes the impact of IOT-based ternary SCMs on concrete performance, and the microstructure of concrete is evaluated using XRD, DTA-TG, mercury intrusion method, and SEM.
Publisher
Research Square Platform LLC
Reference27 articles.
1. Test research on the effects of mechanochemically activated iron tailings on the compressive strength of concrete[J];A C Y, A H F ALW;Construction and Building Materials,2016
2. Reutilizing Waste Iron Tailing Powders as Filler in Mortar to Realize Cement Reduction and Strength Enhancement[J];Cui L;Materials (Basel, Switzerland),2022
3. Reactive Activity of Iron Tailings Powder and its Enhancement Effect upon Concrete[J];Chen M
4. Alkaline activation of high-calcium ash and iron ore tailings and their recycling potential in building materials[J];Frana S;Ambiente Construído,2019
5. Hao R, Guo X. Study on Desulfurized Gypsum-steel Slag Composite Gelled Material Mechanics Properties[C]// International Conference on Civil Engineering, Architecture and Building Materials. 2012.DOI:https://doi.org/10.4028/www.scientific.net/AMM.174-177.974