Slag Powder

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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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Dynamic mechanical properties and microstructure of ultrafine slag …

Ultrafine slag powder cement paste (USP-CP) is a promising green cementitious material with excellent mechanical properties and environmental benefits. In this study, the effects of elemental molar ratios in raw materials (n(Si)/n(Al) ranged from 1.2 to 1.4 with a gradient of 0.1; n(Fe)/n(Al) ranged from 0.15 to 0.21 with a gradient of 0.03 ...

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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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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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In-situ wet carbonation of steel slag powder paste made …

The mineral composition in steel slag powder is similar to that of cement, including C 3 S, C 2 S, etc., which can react with water, enabling steel slag powder to be used as supplementary cementitious material [3].However, deficiencies such as limited activity and poor stability of steel slag powder significantly restrict its applicability [4, 5]. ...

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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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Effects of Steel Slag Powder Content and Curing Condition …

In this paper, alkali-activated ultra-high-performance concrete (AAM-UHPC) was prepared by replacing ground granulated blast furnace slag (GGBFS) powder with different proportions of …

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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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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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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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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 100%) for ...

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Characteristics of Mortars with Blast Furnace Slag Powder …

Recently, interest in environmentally friendly development has increased worldwide, especially in the construction industry. In this study, blast furnace slag powder (BFSP) and mixed steel fine aggregates were applied to cement mortars to reduce the environmental damage caused by the extraction of natural aggregate and to increase the recycling rate of steel by …

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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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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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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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Steel slag powder-CO2 contact state in static or rotary …

The slag powder in the cylinder is a conglomerate composed of a large number of discrete solid particles. When there is no external disturbance, the slag is stationary and forms a powder bed, as shown in Fig. 6 (a). As the cylinder rotates, the material layer experiences changes in stress due to various external forces such as friction between ...

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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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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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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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Hydration superposition effect and mechanism of steel slag …

Steel slag-slag composite powder (SSCP) has three exothermic peaks, which are the dissolution peak, hydration peak of steel slag and pozzolanic ash reaction peak of GBFS …

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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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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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01-00391-EN Slag Powder Analysis by EDXRF

Slag Powder Analysis by EDXRF Slag can be easily analyzed by simply setting it into a sample cell. Additional calculations based on the quantitated values, such as basicity, can also be included in reports. By press molding samples, fluorine (F) …

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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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Influence of steel slag powder on the characteristics of …

Steel slag powder is subsequently formed and causes considerably contaminate the land, and water resources, and degrade the air quality [9, 10]. The compositions of steel slag depend on the way it is processed and they can be classified into basic oxygen furnace (BOF) slag, electric arc furnace (EAF) slag and ladle furnace (LF) slag.

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Effect of steel slag powder on the sulfate corrosion …

The steel slag was ground with a ball mill for over 30 minutes to obtain steel slag powder (SSP). The particle size distributions of the MgO powder and SSP were measured by a laser particle size analyser ( Fig. 1 ), which found that their d50 particle sizes were 38.11 μm and 49.43 μm, respectively.

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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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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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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 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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Effects of Steel Slag Powder Content and Curing Condition …

The reasons for the excellent pore size distribution of the SS30 group are as follows: on the one hand, compared with the SS0 group, after mixing the correct amount of steel slag powder, it slows down the setting speed of the system, which can make the air bubbles brought in during mixing discharge in time, and the particle size of steel slag ...

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Development of slag-based filling cementitious materials …

The quality variation of slag micro-powder is also a significant factor; the incorporation of untested admixtures and activators into the slag micro-powder can lead to significant strength fluctuations, particularly a reduction in strength at later stages accompanied by cracking, posing a significant risk to the safety and durability of the ...

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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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Understanding the multiple actions of phosphoric acid …

Overall, this paper identifies threefold effects of phosphoric acid-modified steel slag powder on cement hydration, and gives an in-depth understanding on why adopting the …

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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 …

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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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Effect of Steel Slag Powder on the Hydration Characteristics …

Metals extraction and processing generate a substantial amount of industrial waste, posing significant environmental hazards. 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 mechanical properties, hydration products, and microstructure of the …

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Characteristics of Pavement Cement Concrete Incorporating Steel Slag Powder

SS is often ground into steel slag powder (SSP), and SSP can be used as a cost effective waste product in concrete or an active additive in the secondary hydration reaction [14, 15]. Li et al. used SSP to replace 10% of cement by mass, and the results showed that compressive strength was reduced with increasing the SSP mixing amount. SSP could ...

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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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