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Laboratory Preparation and Performance Characterization of Steel Slag

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 powder …

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Comprehensive utilization of steel slag: A review

Qiao [54] mixed finely ground steel slag powder into cement concrete and discovered that its compressive strength increased by 4.3%, effectively improving the strength of the concrete. Furthermore, when concrete materials were proportioned with slag to steel slag powder in a ratio of 6: 4, this was discovered to improve the corrosion resistance ...

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Influence of Ultrafine Fly Ash and Slag Powder on …

This study investigated the influences of ultrafine fly ash (UFA) and ultrafine slag powder (USL) on the compressive strengths, autogenous shrinkage, phase assemblage, and microstructure of magnesium potassium phosphate cement (MKPC). The findings indicate that the aluminosilicate fractions present in both ultrafine fly ash and ultrafine slag participate in the …

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Long-term and accelerated swelling of steel slag-glass powder …

There is also a research gap in the literature concerning a clear comparison of long-term and accelerated swelling responses of steel slag, steel slag-glass powder mixtures, and steel slag-class F fly ash mixtures. This research study aimed to evaluate the effect of testing procedures on the measured swelling strains of basic-oxygen-furnace ...

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The effect of furnace steel slag powder on the performance …

In the present study, the effects of steel slag powder (SSP) as a partial/full replacement of natural sand (NS) is investigated, addressing physico-mechanical properties of cementitious mortar at ambient after exposure to high temperature. Five different replacement levels of NS with SSP have been considered (namely, 0, 25, 50, 75 and ) for ...

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furnace slag powder concrete admixtures

Because the overall surface area increases as the powder becomes ner, hydration activity may be accelerated if alkali activators are used. A˝er the reaction of GGBS with water, the elution of Ca ...

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Investigation of ferronickel slag powder for marine …

The quality of the ferronickel slag powder, etc instead of cement quality 0%, 10%, 20%, 30%, and 40% was taken as a variable to study the impact for a clean water environment and a marine environment on the impermeability of the ferronickel slag powder soil-cement at ages of 7d, 28d, 60d, and 90d. Namely, 120 standard soil-cement samples were ...

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Influence of slag powder on the mechanical and electrical …

This paper investigated the influence of slag powder on the mechanical properties, resistivity, and hydration products of carbon fiber-expanded-graphite conductive mortar …

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Effects of Steel Slag Powder as A Cementitious …

This paper summarizes and analyzes the relevant research on steel slag powder (SSP) as a cementitious material, studies the effect of SSP replaces cement as single or multiple admixtures, with different specific …

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Analysis and multi-objective optimization of slag powder process

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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Effects of Steel Slag Powder as A Cementitious Material on …

The utilization rate of steel slag in China is far behind that of developed countries. The annual output of steel slag is still increasing, resulting in a large amount of accumulation, causing environmental pollution. This paper summarizes and analyzes the relevant research on steel slag powder (SSP) as a cementitious material, studies the effect of SSP replaces cement …

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Utilization of Gasification Coarse Slag Powder as Cement …

Coal gasification coarse slag (GFS) is a byproduct of coal gasification technology, which contains abundant amorphous aluminosilicate minerals. GFS has low carbon content, and its ground powder has potential pozzolanic activity, which can be used as a supplementary cementitious material (SCM) for cement. Herein, GFS-blended cement was studied in terms of …

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Influence of slag powder on the mechanical and electrical …

Slag powder's incorporation essentially had a "dilution effect" on cement [39], which thereby increased the water-cement ratio in the slag powder-cement composite cementitious material system, and led to a decrease in its strength. On the other hand, in comparison to Group A's hydration products, C-S-H content, the primary component ...

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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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Physical properties and chemical composition of …

The slag powder passed through the 80-mesh standard sieve is 2.17~2.2 g/cm3 for open hearth furnace slag, about 1.62 g/cm3 for electric furnace slag, and about 1.74 g/cm3 for converter slag. Since steel slag is dense and …

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Slag Powder at Best Price in India

Find here online price details of companies selling Slag Powder. Get info of suppliers, manufacturers, exporters, traders of Slag Powder for buying in India.

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Characteristic and mechanism of efficient phosphate

Both slag powder and coal ash are solid waste materials with high production volumes but low rates of comprehensive utilization. The primary constituents of slag powder are calcium oxide (CaO) and silicon dioxide (SiO 2), while coal ash consists of numerous SiO 2 and aluminum oxide (Al 2 O 3) [17].

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Effect of superfine slag powder on cement properties

The addition of slag powder with surface area of 500 and 800 m 2 /kg, and with diameter of 0.414 and 0.225 time of the cement matrix decreases the porosity and improves the pore structure considerably. (2) With the hydration model and the PSD of the slag powders, the degree of hydration of different powders can be evaluated quantitatively. ...

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Application of steel slag powder to enhance the low …

To investigate the feasibility of using steel slag powder as an alternative option, the limestone powder with the fineness of 230mesh, which is a conventional filler particle size range, was also used in this study. The physical properties of limestone powder and steel slag powder are shown in Table 2.

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Effectiveness of waste steel slag powder on the strength …

This study investigated the effectiveness of steel slag powder (SSP) on the strength development of cement-SSP-stabilized DS (CSDS). The effects of cement content and type, SSP content, humic acid (HA) content and curing age on the strength development of CSDS were analyzed via a series of UCS and pH tests. Additionally, microstructure analyses ...

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Hydration and soundness properties of phosphoric acid …

The cumulative hydration heat of steel slag powder at 72 h is raised from 33.85 J/g to 59.44 J/g after the treatment with 4 wt% phosphoric acid modifier, due to the increased specific surface area and the formation of hydraulic tricalcium phosphate in modified steel slag powder. However, when the modified steel slag powder is blended in cement ...

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Innovative use of industrially produced steel slag powders in …

Considering the potential limitation of utilizing SSA in asphalt mixture, using steel slag powder (SSP) to replace mineral filler in asphalt mixture has been proposed. Although the dosage of filler in asphalt mixture is often less than 10%, it would still be a promising way to reuse steel slag efficiently because of the high demand of asphalt ...

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Effect of Steel Slag Powder on the Hydration Characteristics …

To reduce the accumulation of such waste, this paper incorporates steel slag (SS) into a lime (CH)–sodium sulfate (SN) composite-activated cementitious system. The …

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Application of Steel Slag as an Aggregate in Concrete …

The latest research combines accelerated carbonation techniques with artificial granulation or compaction manufacturing processes to make steel slag powder into artificial aggregates …

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Effects of Steel Slag Powder Content and Curing Condition …

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-activated ultra-high-performance concrete (AAM-UHPC) was prepared by replacing ground granulated blast furnace slag (GGBFS) powder with different …

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A review of the application of steel slag in concrete

When Steel Slag Powder (SSP) is incorporated as an SCM in concrete, there is a tendency to improve the workability of concrete. However, certain issues may arise, such as delayed setting, decreased early strength and adverse effects on volume stability and durability of concrete. Nevertheless, these issues can be mitigated or avoided by ...

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Effect of Steel Slag Powder Content and Curing …

In this paper, alkali activated materials ultra-high performance concrete (AAM-UHPC) was prepared by replacing GGBFS powder with different proportions of steel slag powder, and its workability ...

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Recycled Kambara reactor slag powder as a sustainable …

KR slag powder (KRSP) has a lower bulk specific gravity (2.23 g/cm 3) compared to granulated KR slag. X-ray fluorescence analysis showed no presence of iron (Fe) and calcium oxide (CaO) was below 40%. The soil tested initially had CBR values below Brazilian road base and subbase standards. When mixed with KRSP, CBR values significantly ...

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Effect of Steel Slag Powder on the Performance of …

Steel slag powder and construction waste have received widespread attention for their resource utilization as solid waste. This article uses steel slag powder and recycled concrete aggregates to prepare controlled low-strength materials (CLSM). The study investigates the influence of steel slag powder replacing cement and recycled aggregates on the workability …

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Influence of steel slag powder on the early expansion …

Volume stability is the key to limiting the application of high dosages of steel slag (SS) in geopolymers (GPs). In this paper, the effects of mixing time, particle size and dosage of SS powder, modulus and Na 2 O content of activators, and immersion treatment on the early expansion behavior of SS-based GPs were studied. The leaching behavior of free-oxides from …