DOI: 10.1016/j.conbuildmat.2019.117120 Corpus ID: 210748780; Mechanical properties of the concrete containing ferronickel slag and blast furnace slag powder @article{Qi2020MechanicalPO, title={Mechanical properties of the concrete containing ferronickel slag and blast furnace slag powder}, author={Ai Qi and Xuhong Liu and …
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This study reveals the magnetic separation characteristics of the equipment for inert minerals in steel slag powder and provides a solution for obtaining steel slag …
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The primary objective of this paper was to investigate the effect of replacing steel slag powder (SSP) with limestone filler (LF) with different contents as an inorganic anti-stripping agent on the moisture …
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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 …
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The applications of steel slag powder and steel slag aggregate in ultra-high performance concrete (UHPC) were investigated by determining the fluidity, …
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Steel slag is generally regarded as a supplementary cementitious material in cement-based materials, which is conducive to the realization of the goal of carbon peak and carbon neutralization. However, the lower cementitious activity and poorer volume stability of steel slag limit its high dosage in cement-based materials. In this paper, steel slag ultrafine …
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This paper delves into the impacts of steel slag powder (SSP) and ground granulated blast furnace slag (GBFS) on the workability, compressive strength, …
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The copper slag in this research was sampled from Yunnan Province, China. According to the results in Table 1 and Fig. 1(b), the copper slag. Oxidative desulfurization pre-treatment. According to the results in Table 1 and Fig. 1(a), the sulphur content reaches 4.22 wt%, and it is primarily composed of CaSO 4 in the electroplating sludge.
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Jiangyin Powder Mill Technology Co., Ltd Is mainly application in a full range of powder field, from the unit to the system, from the crushing, conveying, mixing, sieving to granulation, relates to production areas including food additives, baking ingredients, pharmaceutical intermediate, health food, chemical raw materials and other industries
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The accumulation of steel slag and other industrial solid wastes has caused serious environmental pollution and resource waste, and the resource utilization of steel slag is imminent. In this paper, alkali …
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Steel slag has great potential as a supplementary cementitious material, because its composition is similar to cement and it has a certain cementitious activity after grinding it into micronized powder [[11], [12], [13], [14]].However, the low hydration activity of steel slag compared to cement limits its application [15], [16], [17], and the reasons …
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Jiangyin Powder Mill Technology Co., Ltd Is a manufacturing-oriented enterprise. It has gradually transformed itself from a local company focusing on domestic needs to a globally-ori-ented international enterprise of international marketing. Jiangyin Powder Mill has extended its grinding and mixing technologies to the countries in Asia, Europe ...
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The effectiveness of steel slag powder on suppressing alkali aggregate reaction (AAR) expansion was assessed using the method of ASTM C441 and accelerated test method. ... SUN Jia-ying, HUANG Cheng-hua. Influence of slag and steel slag composite on properties of high content slag concrete [J]. New Building Materials, 2004, …
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In this work, a direct alloying technology of molten steel by the self-reduction briquette composed of vanadium slag and graphite powder was proposed. The reduction behavior of vanadium slag briquette was thermodynamically and experimentally investigated, and relevant reaction mechanisms were discussed. The results show that …
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The properties of fine steel slag (0-5 mm) and slag power produced by the roller technology in BaoSteel Group were investigated, and they were used to replace the miner power and fine aggregate of asphalt mixture.
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Utilizing steel slag aggregate (SA) as a substitute for river sand in 3D concrete (3DCP) has emerged as a new technique as natural resources become …
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In this paper, the steam-free curing PHC pile concrete was prepared by using four different contents of cementitious materials (450 kg/m 3, 500 kg/m 3, 550 kg/m 3, and 600 kg/m 3), two different dosages of slag powder (20% and 30%), and 4% dosage of n-C-S-H-PCE.The water-to-binder ratio ranges from 0.20 to 0.28.
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This paper aims to study the application feasibility of steel slag powder (SSP) in replacing limestone powder (LP) to enhance the heat release and self-healing properties of asphalt and an asphalt mixture. First, the microwave-heating characteristics of SSP and LP asphalt mortar were analyzed, and the differences in the microstructure and …
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@article{Hou2021TemperatureEO, title={Temperature Effect of Hydration and Microstructure of Tricalcium Silicate–Slag Powder Hydrated Composites: An Experimental and Molecular Dynamics Investigation}, author={Dongshuai Hou and Cong Wu and Qing Bin Yang and Pan Wang and Qingjun Ding}, journal={ACS Sustainable Chemistry & …
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The steel slag powder is a powdery product formed by ball milling after the industrial waste is discharged from steelmaking. It has similar properties to those of cement, but its activity is poor and it needs to be treated. Through the laboratory tests, caustic soda (NaOH) is used as the activator of the steel slag powder to study the effect of the slag powder and …
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The excess phosphate solution reacts with Ca(OH) 2 in steel slag powder, causing structure of weak acid modified steel slag powder to collapse, and showing fleeciness as a whole.
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According to the metallographic electron micrograph, the fractal dimension of vanadium slag powder under different roasting conditions was calculated by using the "circumference-area method", and ...
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Dry chemical etching technology was employed to modify the surface of steel slag powder (SS) with formic acid (FC) aiming to improve the early-age hydraulic ability and soundness of SS as supplementary cementitious material (SCM). Results reveal that FC etching changes the surface mineral composition and increases the surface …
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The slag can form powder after grinding. When the specific surface area of slag powder is more than 400 m 2 /kg, the strength of the cement is obviously enhanced [1]. So how to ensure the quality and yield of slag powder has been an important issue. Slag powder is a multivariate, strongly coupled and nonlinear process.
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Hydration heat evolution, non-evaporative water, setting time and SEM tests were performed to investigate the effect of fine steel slag powder on the hydration process of Portland cement and its mechanism. The results show that the effect of fine steel slag powder on the hydration process of Portland cement is closely related to its chemical …
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Steel slag powder (SSP) was finely ground and has a relatively small particle size ranging from 0.15 to 186 μm, with a median size of 33.2 μm and a specific surface area of 655.3 m 2 /kg. GBFS has an average diameter of 15 μm and a specific surface area of 801 m 2 /kg. The MgO and SSP was sourced from Shanghai Baoye Steel …
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Two different mould powders are used for casting peritectic steel grades at the voestalpine Stahl Linz slab casting machine. Powder A forms significantly larger slag rims than Powder B, although their chemical compositions are very similar.For the clarification of the different performance during service, the melting and solidification …
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P.O. 42.5 cement that meets the requirements of the GB/T175–2007 standard was used to prepare specimens [35], and its mechanical properties are indicated in Table 1.The supplementary cementitious material employed was S105-grade slag powder, with a specific surface area of 515 m 2 /kg. The binder materials' chemical …
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LI Ting, YANG Gang, CHEN Hua, et al. Basic properties and utilization of steel slags produced in different processes and prepared by different treatment process[J]. ...
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