Designers may lessen the impact of concrete on the environment while yet ensuring enhanced performance and higher durability by using slag cement, which has proven long-term performance advantages. However, in actual practice, concrete constructions use slag to replace OPC up to 30 to 50 percent of the time, depending on …
Steel slags have a chemical composition close to that of the Portland cement clinker, mainly constituted by calcium-silicates and calcium-ferrites, which makes this industrial waste potentially usable as a raw material for cement and concrete production [91].The presence of steel slag in the clinker manufacturing process reduces the …
Industrial solid waste is characterized by complex mineral phases and various components. Low-carbon cementitious materials can be prepared through precise regulation based on the material composition and properties of various industrial solid wastes. In this study, electrolytic manganese residue (EMR), carbide slag (CS), and …
Manganese slag (MS) is a kind of chemical waste, which may pollute the environment if conventional handling methods (stacking and landfill) are applied. Ultra …
1. Introduction. Steel slag is a by-product of steel manufacturing [].Approximately 160 kg of steel slag is generated per ton of steel produced [].The common chemical compounds in steel slag are SiO 2, CaO, Fe 2 O 3, Al 2 O 3, and MnO [3, 4].The major mineral components of steel slag are C 3 S, C 2 S, C 4 AF, RO phase, and free …
In this research, the electrolytic manganese residue (EMR) based belite-ye'elimite-ferrite (E-BYF) clinker composed of 51.6 % belite, 25.6 % iron phase, 15.8 % ye'elimite and 6.5 % over-burned ...
It is of great importance to innocuity, minimization and reutilization of manganese slag generated in manganese product by electric furnace process. In the paper, ordinary Portland cement was replaced partly by manganese slag to then evaluate manganese slag' effect on mechanical performances of them. The experimental results obtained …
Circulating fluidized bed desulfurization slag (CDS) and silico-manganese slag (SiMnS) are two kinds of industrial solid wastes. They both have rich Al2O3 and SiO2. In this paper, the CDS-SiMnS geopolymer pastes (CSGP) is prepared by using CDS and SiMnS. The mechanical, structural and microstructural properties of the CSGP were …
Grounded in the auspicious horizons of geological polymers as alternative replacements for Portland cement and aligned with the national endeavor of constructing an ecological civilization and harnessing solid waste as a resource, this study delves into the integration of nanostructured calcium carbonate (CaCO3) into geological polymers …
Clinker, blast furnace slag (BFS) and electrolytic manganese residue (EMR) were used to make the cement-based cementitious material (CCM) in this research.
1 Introduction. Electrolytic manganese slag (MS) represents a significant solid waste byproduct, with a notable annual output [1,2].In its untreated state, MS contains heavy metal ions such as Mn 2+ and NH 4+, which may leach into the environment and contribute to soil and water contamination, thereby presenting significant environmental …
Innovation and performance of lead smelting slag-based multi-solid waste pavement concrete materials: Ratio design, mechanical properties, hydration products, heavy metal leaching ... Cement concrete pavement is a prominent structural configuration utilized in the construction of highways. ... magnesium-iron oxide (Mg 0.432 FeO 0.568 ...
Incorporating solid wastes into cement can both immobilize harmful substances and enhance the performance of cement-based materials concurrently [8]. A number of waste materials, including fly ash, furnace ash, secondary aluminum ash, steel slag, ...
Manganese slag (MS) containing a certain amount of active hydration substances may be used as a kind of cementitious material. In the present study, we measured the mass, the relative dynamic modulus of elasticity (RDME), and the flexural and compressive strengths of MS high-performance concrete (MS-HPC) with added basalt …
SiMn slag, a nonferrous metal, is generated in the smelting of SiMn, and has a high Si-based oxide content and low Fe-based oxide content. Frias et al. reported that …
1. Introduction. Manganese slag (MS) is a strategic resource widely used in industries such as metallurgy and the chemical industry [1,2].According to statistics, the accumulation of electrolytic manganese slag due to historical and technical issues may have exceeded 100 million tons, with an annual increase of 10 million tons [3,4,5].At present, the resource …
To lower economic cost and achieve enhanced mechanical performances, manganese slag can be substituted partly to cement concrete. It is of great importance …
Moreover, the research on water-quenched manganese slag has been used in cement materials, wall materials, glass-ceramic materials, ordinary or high-strength concrete [3,5], and fly ash is also ...
1. Introduction. As the global population steadily increases, there is a corresponding rise in the need for infrastructure, driving rapid worldwide expansion and heightened urbanization [1].Concrete stands as the predominant building material, and the reduction of its CO 2 emissions and energy consumption could be pivotal in mitigating …
As a result of the studies performed, it was found that the addition of dispersed sludge with manganese oxide in an amount of 4% of the cement mass to a cement binder leads to the activation of ...
In the present study, we sought to investigate the effects of adding MS (with mass ratios of 0~40%) and reinforced fibers (steel and basalt fibers, with volume ratios …
The clinker came from Hebei cement plant. Carbide slag (CS) was obtained from Guizhou acetylene plant; and its pH value is 11.2. BFS was provided by Guizhou steel plant, and the specific surface area is 430 m 2 /kg. The EMR was from Guizhou electrolytic manganese plant.
DOI: 10.1016/j.jobe.2024.109115 Corpus ID: 268822920; Effect of water quenched silicomanganese slag as fine aggregate on mechanical properties and microstructure characteristics of solid waste-based mortar and concrete
DOI: 10.1016/j.matpr.2023.03.438 Corpus ID: 257936398; Study on the engineering properties of concrete made of poypropylene fiber and combination of silico manganese slag @article{Lavanya2023StudyOT, title={Study on the engineering properties of concrete made of poypropylene fiber and combination of silico manganese slag}, author={P. …
1. Introduction. Manufacturing of Portland cement is a major source of global carbon dioxide (CO 2) emissions, making up approximately 5%–7% of global CO 2 emissions from industrial and energy sources [1].Geopolymer can be considered as an alternative material to Portland cement [2] owing to its benefits in terms of energy …
Manganese slags have been assessed as potential supplementary cementitious materials for partial replacement of Portland cement, although its effectiveness is affected by the content of MnO in the slag. 90,92 Péra et al. 93 characterized five manganese-rich slags from the ferroalloys industry, identifying that increased contents of MnO inhibited early …
Manganese slag (MS) containing a certain amount of active hydration substances may be used as a kind of cementitious material. In the present study, we measured the mass, the relative dynamic modulus of elasticity (RDME), and the flexural and compressive strengths of MS high-performance concrete (MS-HPC) with added basalt …
Ground granulated blast-furnace slag (GGBS) is a green construction material used to produce durable concrete. The secondary pozzolanic reactions can result in reduced pore connectivity; therefore, replacing partial amount of Portland cement (PC) with GGBS can significantly reduce the risk of sulfate attack, alkali–silica reactions and …
