2024.1.11 Compressive strengths of samples with different replacement amounts of granulated blast furnace slag. Various methods exist to assess the cementitious activity
Bavarder sur Internet2021.9.7 Ground granulated blast furnace slags (GGBS) are glassy by-products from iron production that are commonly used as supplementary cementitious materials in
Bavarder sur Internet2019.5.31 Furthermore, the wet granulated slag has to be dewatered at a significant cost and then dried. The dewatering to 10–15% moisture and then drying consume
Bavarder sur Internet2011.1.1 Ground granulated blast furnace slag (GGBS) is a by-product from the blast-furnaces used to make iron. Blast-furnaces are fed with controlled mixture of iron-ore,
Bavarder sur Internet2021.7.5 To ensure the granulation effect, the ratio of the diameter of the slag tube to the rotating cup should not exceed 0.44, and the installation height of the slag tube
Bavarder sur Internet2018.1.1 Three significant types of BFS that are granulated, air-cooled, and expanded slags can be produced depending on the cooling and solidifying methods of
Bavarder sur Internet2021.11.3 During granulation, due to rapid cooling (quenching), the slag solidifies in a glassy (amorphous) state and the latent heat of crystallization (300–400 kJ/kg) is not
Bavarder sur Internet2020.10.29 This study investigates air granulated converter slag sieved into different size fractions (2-4 mm, 1-2 mm, 0.5-1 mm, 0.25-0.5 mm) to gain information about the influence of the cooling speed. The
Bavarder sur Internet2022.10.22 slag of unknown composition (Russia, JSC «EVRAZ NTMK») was selected as a test sample to check the quality and accuracy of the calibration models.
Bavarder sur Internet2021.6.16 The granulated slag and water mix is distributed evenly over the whole length of the drum. Axial vanes inside the drum continuously lift the slag sand onto a
Bavarder sur Internet2023.12.26 The slag was remelted, modified, and water-granulated in laboratory scale, and its performance as an SCM was compared to water-granulated ladle slag and two commercial GGBS. The results showed promising reactivities measured using the R 3 isothermal calorimeter-based testing protocol. Based on the comparison to GGBS, the
Bavarder sur Internet2024.1.11 Figure 7 shows SEM images of granulated blast furnace slag and magnesium slag samples and the corresponding samples after alkali dissolution. It can be observed that both the granulated blast furnace slag and magnesium slag were in the form of flakes with a relatively smooth surface. After alkali dissolution, the morphology of slags
Bavarder sur InternetGround Granualated Blast Furnace Slag. Slag is a by-product from steel plants obtained from blast furnaces, during the separation of iron from iron ore. The process involves cooling of the slag through high-pressure water jets, which enables the formation of granular particles. JSW Cement Company, one of the best and leading GGBS manufacturers ...
Bavarder sur Internet2023.8.11 The granulated blast furnace slag has hydraulicity, and the internal pore structure of the concrete is optimized to a certain extent under the condition of long-age curing. The strength growth rate of long-age granulated blast furnace slag self-compacting concrete is greater than that of ordinary self-compacting concrete.
Bavarder sur Internet2021.1.4 The Bond work index (BWI) values of the water-quenched slag and dry granulated slags in this granulation experiment were measured. The BWI of dry granulated BFS is 18.4 kWh/t, which is slightly less than the BWI of water-quenched slag (21.2 kWh/t). This indicates that the grindability of the dry granulated slag and water-quenched slag is
Bavarder sur Internet2022.10.22 At the same time, granulated blast furnace slag or its mixtures with fly ash act as compaction agents, binders and water repellents and change the soil behavior [16,17]. The presence of calcium (CaO) in granulated blast furnace slag helps to reduce the setting time and increase the compressive strength of clay soil [18,19,20]. During the ...
Bavarder sur Internet2019.3.1 In contrast with the data listed in Table 1, Chinwuba18 stated that the basic components of the granulated cupola slag are Fe 2 O 3, with the content of 69.2%; SiO 2, with the content of 16%; and MnO, with the content of 6.27%.This, however, is very unlikely. Some authors who present the use of slags from cupola furnaces in the production of
Bavarder sur Internet2022.10.22 slag of unknown composition (Russia, JSC «EVRAZ NTMK») was selected as a test sample to check the quality and accuracy of the calibration models. Characteristics and name of the sample of granulated blast furnace slag are presented in Table1. Table 1. Characteristics and name of the sample of granulated blast furnace slag.
Bavarder sur Internet2021.8.5 To solve the problem of difficult utilization of steel slag, the liquid steel slag was modified and the air-quenching granulation process was carried out to make steel slag into a value-added end product: air-quenching granulated steel slag. The granulated slag was tested to analyze the variation rule of slag properties under different modification
Bavarder sur Internet2022.9.26 By analysing the spectrum (detailed figure) in the range of 700–1100 cm −1, it can be found that there are obvious absorption peaks in the spectrum of all the slag samples.The granulated blast ...
Bavarder sur Internet2022.10.19 Due to its potential pozzolanic activity, granulated copper slag (GCS) has been proven to act as a supplementary cementitious material (SCM) after thermochemical modification with CaO. This
Bavarder sur Internet2021.11.3 The technological factors required to improve the operational properties of granulated metallurgical slags demanded in the building industry have been analyzed. In order to satisfy these factors, a new technology for hydro-vacuum granulation of slag melts (HVG) has been developed. It is shown that the main advantage of the proposed HVG
Bavarder sur Internet2024.1.2 The SEM-BS (backscattered images) of 7 and 28 days cured BSCA-slag specimens have been presented in Fig. 5. ... This study shows that air granulated slag provides good stability, and variability in setting time to belite calcium sulfoaluminate cement which could help diversify its application in concrete. The mechanical and chemical
Bavarder sur Internet2019.2.8 In stainless steel production, slag from argon oxygen decarburization (AOD) converters is dumped on to the ground and then slowly cooled. The slag undergoes phase transformation from β-dicalcium silicate (β-C2S) to γ-dicalcium silicate (γ-C2S) at approximately 500 °C to 450 °C, resulting in slag volume expansion, disintegration, and
Bavarder sur Internet1 天前 The rapid cooling of molten slag by large quantities of water produces sand-like granule aggregate. Primarily ground into a cement replacement known as ground granulated blast furnace slag (GGBS) this is used in ready-mixed and precast concrete and masonry, floor levelling compounds and high temperature resistant building products. Responsibly ...
Bavarder sur Internet2021.11.25 This article presents the development of a method for producing a finely dispersed fraction of ground blast-furnace granulated slag. The resulting material with an alkaline additive can serve as an alternative to analogous finely dispersed mineral binders such as microcement. A comprehensive study was conducted on granulated slags from
Bavarder sur Internet2022.1.1 According to International Manganese Institute (IMnI) statistics, worldwide production of SiMn alloy in 2018 is around 16 million tons, which is 16% more than 2017 and increasing continuously for the third consecutive year (IMnI Statistics, 2019).Year-wise, global production of SiMn alloy is depicted in Fig. 1.About 1.2 to 1.4 ton of slag is
Bavarder sur Internet2019.12.9 Metallurgical slags are produced at a massive rate of over 750 Mt/year, and carry a thermal energy equivalent to 40 Mt/year of coal. The potential mineral and thermal energy values of slags are in the order of $22 b and $3–6 b per year. Such attractive figures, together with tightening legislation on disposal of slag and the carbon footprint
Bavarder sur Internet大量翻译例句关于"granulated slag" – 英中词典以及8百万条中文译文例句搜索。 酯多元醇、硅烷改性反应性无定形α-聚烯烃以及用于反应性热熔胶的丙烯酸酯类及 生物基聚酯,此外还有用于高性能胶黏剂及密封胶的高活性液体聚丁二烯以及具有 极好密封及剥离性能的丙烯酸
Bavarder sur Internet2019.12.2 In the blast-furnace production, fiery-liquid slags have temperatures of about 1400–1500 °C at the exit from the furnace. For the utilization of their sensible heat, the world leading countries develop special installations for slag dry granulation aimed at getting dry granulated slags and using the heat of liquid slags for the purposes of heating of air
Bavarder sur Internet2020.10.29 The three largest granulated slag fractions are very similar. The overall C 2 S content is the same (41 to 44 wt%), but the β-C 2 S content in the granulated converter slag increases with increasing
Bavarder sur Internet2019.8.28 The process of devitrification for the blast furnace granulated slag has more expressed exothermic maximum, which is caused by high concentration of a glass phase. ... The images or other third party material in this chapter are included in the chapter's Creative Commons license, unless indicated otherwise in a credit line to the
Bavarder sur Internet2021.12.10 本文根据AASC的相关研究,分析总结了AASC的水化特性以及界面过渡区、孔结构等微观结构的研究进展。. 讨论了矿渣成分、碱激发剂种类及其用量、养护条件对AASC的水化特性和微观结构的影响。. 目
Bavarder sur Internet2023.10.19 Portland cement is usually substituted with granulated blast furnace slag to make a slag-blended cement. A slag-incorporating cement has a more complicated hydration process than Portland cement due to the interactions between the slag reaction and the hydration of Portland cement in the cementitious systems. Understanding the
Bavarder sur Internet2019.3.4 Basic oxygen furnace (BOF) steel slag is a major waste of the steelmaking industry. Utilization of BOF slag contributes to the sustainability of the steel industry by alleviating its environmental impact. Vitrification during cooling is an effective method to promote the cementitious activity of slags with the aim to apply slags in high value-added
Bavarder sur InternetGranulated blast furnace slag having the composition within the following ranges generally meets the requirements for its use in making blast furnace slag cement. It should contain less than 1.0% Fe 2 O 3 and 1%–3% Na 2 O + K 2 O. Some uncertainty was raised in the past concerning the mobilization of sulphur present as sulphide in the slag, its successive
Bavarder sur Internet2021.12.16 Characterisation of the slag constituents. Table 1. shows the results from the chemical analyses of the as-received iron silicate slag and granulated glass, matte, and speiss samples. The main elements in the iron silicate slag were Fe, Si, and O; other elements with contents above 1 wt.% are Ca, Al, and Zn.
Bavarder sur Internet摘要 为了开发冶炼熔渣干法粒化和余热回收技术,提出了一种飞行高炉熔渣颗粒表面温度与发射率的瞬间测量方法。. 实验过程中,建立了熔渣表面温度与灰度、表面发射率与表面温度的关系曲线,通过高速摄像机瞬间捕捉飞行熔渣颗粒图像,计算图像灰度 ...
Bavarder sur Internet2023.1.6 For POSCO slag, air atomization produced a glass content of 92.5% as compared to the 97.5% achieved through water granulation. Later trials with SSAB slag produced air atomized slag granules with 99.9% glass content as compared to the original glass content of the water granulated slag at 98%. Thus, laboratory scale work
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