Effect of superfine slag powder on cement properties
In this article, the packing effect and pozzolanic effect of superfine slag powder were mathematically analyzed in an effort to evaluate the rudimentary mechanism of the …
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Effects of ultra-fine ground granulated blast-furnace slag on …
The GGBS in this work was commercially available ultra-fine slag of two sizes (V1 and V2), Nitrogen BET Surface area of V2 (3955 m 2 kg −1) was found to be much higher than the V1 (2435 m 2 kg −1).The (CaO + MgO)/SiO 2 ratio by mass (M, coefficient of basicity) was a reliable indicator of reactivity [25], Calculated M = 1.55 of the UFS. Fig. 1 (a) shows the …
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EFFECT OF MODIFIER AND SUPERFINE STEEL SLAG …
al.'s report [8]. Superfine steel slag powder with specific surface area of 610 m2 /kg from Anshan, Liaoning Prov-ince, China. Chemical composite on of light - burned MgO and superfine steel slag powder analyzed by X - ray fluoresceence spectrometer were presented in Table 1. The magnesium oxysulfate (MgSO 4 ·7H 2 O) employed
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Study on the macroscopic properties of phosphorus slag …
1. Introduction. Phosphorus slag (PS) is an industrial by-product of the production of yellow phosphorus by the electric furnace method, and producing one-ton yellow phosphorus will form about 10–12 tons of PS [1, 2].China is the largest phosphorus slag emitter in the world, generating about 8 million tons of phosphorus slag each year [3].A large amount of PS …
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Effect of modifier and superfine steel slag powder on …
In order to further investigate the effect of modifier and superfine steel slag powder on properties of magnesium oxysulfate (MOS) cement, the examinations of compressive strength, hydration products, and pore structure of various MOS cement mixtures are discussed in detail.
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Study on the Effect of Ultra-fine Limestone Powder on the …
The effect of different limestone powder fineness on the chloride ion migration coefficient of the cement paste was tested using the Rapid Chloride Migration (RCM) method. The changes in the phase composition and pore structure of the paste were studied using hydration kinetics analysis, XRD and pore structure analysis. The results showed that before the …
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Effect of modifier and superfine steel slag powder on …
In order to further investigate the effect of modifier and superfine steel slag powder on properties of magnesium oxysulfate (MOS) cement, the examinations of compressive strength, hydration products, and pore structure of various MOS cement mixtures are discussed in detail. The results show that malic acid helps the formation of 5Mg(OH)2 ...
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The Influence of Super-Fine Steel Slag on the Properties of …
The properties of the concrete with super-fine steel slag were compared with those of the pure cement concrete. Results show that the concrete with 20% super-fine steel slag has similar …
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Compressive strength and hydration process of sodium …
It was of great significance to decrease the carbon emissions of SC-activated superfine slag. Marble powder (MP) was a waste generated by marble processing and quarrying industry, and basically had no carbon emissions. However, the marble powder that cannot be effectively utilized were only deposited in the open, which not only polluted the ...
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Comparison between the effects of superfine steel slag and superfine …
Superfine particles have been used as mineral admixtures to enhance physical properties, mechanical properties, and durability of concrete in a lot of research. In this study, superfine steel slag (FSS) and superfine phosphorus slag (FPS) were ground to 643 and 657 m2 kg−1, respectively. The water-to-binder (W/B) ratios were set as 0.45 as well as 0.35, and the …
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Mechanical and hydration properties of low clinker cement …
Afterwards, the sample pieces were oven-dried at 40 ℃ for 48 h and then ground into fine powder with particle size less than 75 μm. ... Effect of superfine blast furnace slag powder on properties of cement-based materials. Mater. Res. Innov., 19 (2015), pp. S168-S171. Google Scholar [23]
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Influence of slag powder on the mechanical and
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 composition is presented in Table 2.
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Slag Powder: A Sustainable and Valuable Resource
Slag powder is a fine-grained byproduct produced during the separation of metal from its ore in various high-temperature metallurgical processes, such as smelting and refining. It is composed of various minerals and compounds, and its specific composition depends on the type of ore being processed and the production methods employed. Types of Slag Powder Ground […]
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Effect of superfine blast furnace slag powder on …
Meanwhile, superfine blast furnace slag powder can improve fluidity of cement-based materials. Discover the world's research. 25+ million members; 160+ million publication pages;
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The effect of ultrahigh volume ultrafine blast furnace slag …
Certain industrial wastes (fly ash and ground granulated blast furnace slag), municipal wastes (glass powder and ceramic waste powder) and agricultural wastes (palm oil fuel ash) have been used as a Portland cement (PC) substitute due to their pozzolanic properties. This article discusses the high volume replacement of PC in concrete with these ...
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and TECHNOLOGY RESEARCH
The incorporation of superfine phosphorus slag powder can reduce the incorporation of gelled materials and reduce the quantity of the gelation materials by about 50kg when it meets C60 grade concrete strength. Compared with other mineral admixtures, ultrafine phosphorus slag powder can improve the durability of concrete and reduce the early ...
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Effect of superfine blast furnace slag powder on properties …
In this paper, blast furnace slag was ground to be superfine powder and partial replacement of cement. Multiple contents of slag powder used in cement were studied by …
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Preliminary investigation on the pozzolanic activity of superfine steel
It is evident that SS 2, SS 3, and SS 4 superfine steel slag have much less coarse particles larger than 50 μm in diameter and more fine particles smaller than 1 μm in diameter than that of SS 1 ordinary steel slag powder. Therefore, superfine steel slag is more likely to induce high hydration activity than ordinary steel slag powder.
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Roles of recycled fine aggregate and carbonated recycled fine …
DOI: 10.1016/j.conbuildmat.2022.129876 Corpus ID: 254400673; Roles of recycled fine aggregate and carbonated recycled fine aggregate in alkali-activated slag and glass powder mortar
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Experimental Study on the Effect of Steel Slag Powder and Fine …
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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Effects of modified coal gasification fine slag on the …
Coal gasification fine slag (CGFS) is rich in unburned residual carbon, silica and alumina, and has a large specific surface area, making it a potential polymer-reinforcing filler. Tea polyphenol (TP)-modified coal gasification fine slag (TP-CGFS-T) was prepared using flotation and modification methods in this study.
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Study on Preparation of C60 High Performance Concrete by …
The hydration products, microstructures and pore structures of paste with part of Portland cement replaced by superfine phosphoric slag were investigated by XRD, DTA and SEM in this article.
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Recycling of industrial waste and performance of steel slag …
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 Shu-shan, ZHU Gui-lin, ZHANG Yu. Application technology of iron and steel slag in China [J]. ... DING Qing-jun, PENG Yan-zhou. Effect of super-fine steel slag powder on ...
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Chuan Bei Fine Powder 60g ()
Put 1 teaspoon of Chuan Bei Fine Powder with sliced Chinese Pear and honey in 1 litre of water. Bring to boil and simmer for 30 minutes. Drink warm. Whats in the box: 60g of Chuan Bei Fine Powder (), 1 plastic spatula ~2.5ml; Storage: Keep refrigerated. 。Avoid humidity, Keep Dry.
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Effectiveness of Jet Milling for Producing Superfine Powders …
The paper examines the effect of ball (drum) grinding and jet milling on the particle size distribution and specific surface area of the powders produced from blast-furnace slag. The effectiveness of jet milling, providing relatively equal powder particles (more than 85% of the fractions is 0–10 μm in size), is shown. Decrease in the average particle size leads to greater …
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Applications of Steel Slag Powder and Steel Slag …
The applications of steel slag powder and steel slag aggregate in ultra-high performance concrete (UHPC) were investigated by determining the fluidity, nonevaporable water content, and pore structure of paste and the …
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Effect of superfine blast furnace slag powder on …
with 70% superfine blast furnace slag powder still can meet the requirements of Portland cement P†O32·5. Meanwhile, superfine blast furnace slag powder can improve fluidity of cement-based materials. Keywords: Superfine blast furnace slag powder, Cement based, Content, Strength Introduction According to the world environmental protection organ-
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Utilisation of glass powder in high strength copper slag …
An experimental investigation has been carried to study about the effect of glass powder on high strength copper slag concrete .The range of glass powder was 10%, 15% and 20% as a replacement of ...
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Multiscale analysis of fine slag from pulverized coal …
Fine slag (FS) is an unavoidable by-product of coal gasification. FS, which is a simple heap of solid waste left in the open air, easily causes environmental pollution and has a low resource utilization rate, thereby restricting the development of energy-saving coal gasification technologies. The multiscale analysis of FS performed in this study indicates typical grain size …
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Effect of fine steel slag powder on the early hydration …
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 composition, mineral …
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