— 1. Introduction. Geopolymer concrete has been highly recommended as a suitable alternative to ordinary Portland cement (OPC)-based concrete over the past few years [1].Indeed, it is known for its good compressive and splitting tensile strengths which can reach over 60 and 3 MPa respectively [2].Furthermore, in comparison to OPC …
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— PDF | Manganese slag (MS) containing a certain amount of active hydration substances may be used as a kind of cementitious material. ... The Properties of High-Performance Concrete with Manganese ...
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electrolytic manganese anode mud Huimin Xie, Libo Zhang, Guo Chen et al.-Study on the Growth Law of Manganese in Electrolysis Process of MnSO 4 Solution Containing Magnesium Jiayu Tian, Haifeng Wang, Xiaoyu You et al.-Equilibrium distribution of Mg in manganese electrolysis system Ji-Tao Qin, Jia-Wei Wang, Hai-Feng Wang et al.-
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— Manganese slag (MS) is a kind of chemical waste, which may pollute the environment if conventional handling methods (stacking and landfill) are applied. Ultra-high-performance concrete (UHPC)—with considerably high compactness and strength—can be used not only as a special concrete material, but also to solidify the toxic substances in …
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— Keywords: manganese slag; ultra-high-performance concrete; plastic viscosity; energy spectrum analysis; X-ray diffraction 1. Introduction Manganese slag (MS) is a strategic resource widely used in industries such as met-allurgy and the chemical industry [1,2]. According to statistics, the accumulation of elec-
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from 0 to 45min. For 20% Mn slag concrete, slump loss is 27%, which is obviously lower than that without Mn slag. Compressive strength of concrete made with Mn slag decreases with Mn slag dosage. Strength of concrete with more than 20% Mn slag does not meet the requirementsofC40-0concretedesign strength. So, the slag dosage should not exceed 20%.
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— Cement mortar was prepared at a ratio of 1:3 as per the Indian standard IS:2250-1981. 1:3 grade of cement mortar considered in the proportion of cement: M-sand: Slag sand (C:M:S). An experimental investigation of slag sand was done by preparing a mortar with varying aggregate percentages from 0 to with an interval of 25%.
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manganese slag has a good activity that could affect the performance of concrete [7]. Due to the rapid development of the steel industry, a large amount of metallurgical slag needs to be recycled.
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— Study on Cementing Material Making with Electrolytic Manganese Residue. Jia Wang, Bing Peng, Jia Wang, Bing Peng. School of Metallurgical Science and Engineering, Central South University, Changsha, 410083, China. Search for more papers by this author. Liyuan Chai, Liyuan Chai.
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— 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 …
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— To improve the utilization rate of industrial solid waste and the sustainable development of geopolymer research and development, this article uses electrolytic manganese residue (EMR), coal slag (CS), and granulated blast furnace slag (GGBS) as raw materials to prepare a new eco-friendly geopolymer cementitious material (GOCM). …
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— For the concrete made with natural limestone aggregates after only 1 d of CO 2 curing, in comparison to the concrete prior to the CO 2 exposure (namely after 7d of moist curing), the compressive strengths were increased by 2.7–3.5 times, while those of the concrete made with steel slag as fine and coarse aggregates were increased by ...
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— Slag cement has a long list of environmental advantages, which aligns with the trend for more environmentally friendly construction. ... Durability performance of concrete made with fine recycled concrete aggregates. Cem. Concr. Compos., 32 (1) (2010), pp. 9-14. View PDF View article View in Scopus Google Scholar [8] N. Otsuki, S. …
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— The obtained experimental results showed that the manganese slag cement replaced by 2~6%( wt) manganese slag has better road performance such as mechanical properties, hydro-abrasive erosion and ...
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— The research provides useful reference for knowing about Mn slag and for applying Mn slag to improve the durability of concrete. This paper discusses mineral …
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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 …
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— The silica manganese slag used in the experiment was all from Ningxia, China, including the Huiyi silica manganese slag (HYSM) from Shizuishan City (Ningxia, ... Replacing the aggregate in lightweight concrete with ORC yielded a concrete with excellent mixing performance, reaching a maximum strength of 31.2 MPa after 7d and 44.8 MPa …
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— DOI: 10.1016/j.rnrec.2021.105946 Corpus ID: 244209917; A review on characteristics of silico-manganese slag and its utilization into construction materials @article{Nath2022ARO, title={A review on characteristics of silico-manganese slag and its utilization into construction materials}, author={Susanta Kumar Nath and Navneet Singh …
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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 …
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Download Citation | On Apr 1, 2023, P. Lavanya and others published Study on the engineering properties of concrete made of poypropylene fiber and combination of silico manganese slag | Find, read ...
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— 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 ...
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— cement. Manganese slag with certain amounts of active substances may also be used for the manufacturing of cement matrix [11]. MS contains toxic heavy metal substances, but these may be leached if the cement materials possess high numbers of pores. High-performance concrete (HPC) is a type of concrete characterized by high
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— The generation of electrolytic manganese slag (EMS) results in its classification as solid waste in the realm of electrolytic manganese production, mandating the requisite measures for its treatment and disposal. It is noteworthy that 5–6 tons of EMS are produced for every ton of electrolytic manganese [29], [40]. Hence, the processing …
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— This paper aims to investigate the mechanical performance of high-strength concrete (HSC) made with polypropylene fiber at various high temperatures. In this study, five different concrete compositions having three contents of polypropylene fiber were prepared. Polypropylene fibers were incorporated at 0.5, 1.0 and 1.5 kg/m3 in concrete …
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It's 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 incorporated by manganese slag, and then mechanical tests were performed to obtain the fundamental properties of the cement stabilized material in order …
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— Test results revealed that all manganese slag concrete specimens had improved compressive and flexural strength. The maximum compressive strength achieved was 43.54 MPa, increased by 16% of the ...
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— The obtained experimental results showed that the manganese slag cement replaced by 2~6%( wt) manganese slag has better road performance such as mechanical properties, hydro-abrasive...
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This paper studies the effect of replacing coarse aggregates with manganese slag on the mechanical properties of concrete. Air-cooled granulated manganese slag was used. The control sample was designed to achieve concrete strength of 30 MPa at 28 days. Tests were conducted on five different compositions of concrete having manganese slag to …
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— Electrolytic manganese residue (EMR) is added into ground granulated blastfurnace slag (GGBS) as an activator to prepare EMR–GGBS cement. The effects of chemical activation, mechanical activation, water-to-cement ratio and the curing process on the strength and setting properties of EMR–GGBS cement are investigated based on its …
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— 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 …
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— The electrolytic manganese slag yard of a manganese product company in Guizhou Province covers an area of about 7000 m 2. 8 sampling points are randomly arranged in the yard, the sampling hole diameter is 10 cm, and the depth is 4 m.After mixing, two diagonal samples were taken according to the quartile method, each weight …
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With the rapid development of electrolytic manganese industry, the environmental problems caused by the storage of electrolytic manganese slag are particularly prominent. It not only occupies land resources, but also easily causes heavy metal pollution in soil, surface water and groundwater. Therefore, it is necessary to treat electrolytic manganese slag safely …
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— 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 …
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— In the present study, we measured the mass, the relative dynamic modulus of elasticity (RDME), and the flexural and compressive strengths of MS high …
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— To date, several researches have been performed to utilize SiMn slag as partial cement replacement in concrete [18], [19], [20].It was shown by Nath and Kumar [18] that concrete incorporated with SiMn slag as partial cement replacement could achieve comparable 28-day compressive strength to normal concrete, though lower strength was …
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