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Solving common problems in the production process of slag ...

After the slag ultra-fine vertical mill is produced for a period of time, some users will encounter various equipment failure problems. The following summarizes the problems and solutions in the production process of the slag ultra-fine vertical mill. The most direct problems for users in the production process of ultra-fine slag vertical mills are mainly equipment noise …

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Properties of Concrete Modified with Ultra-Fine Slag

Properties of Concrete Modified with Ultra-Fine Slag . Abstract . The supplementary cementitious materials (SCM) can be used as a replacement of cement in the construction industry to minimize the drawbacks of normal concrete such as the emission of carbon dioxide so as to be eco-friendly.

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Ultrafine Cement Grouting | Geo Grout Ground Modification ...

MICROFINE CEMENT is a blast furnace slag-based ultrafine cement intended for specialty grouting applications. With a maximum particle size of ten microns and a median particle size of three microns, MICROFINE CEMENT is able to penetrate very small openings such as soil pores and microscopic rock fissures, in order to improve strength and reduce permeability.

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(PDF) International Conference on Structural Engineering ...

International Conference on Structural Engineering and Mechanics PROPERTIES OF HIGH STRENGTH CONCRETE CONTAINING ULTRAFINE SLAG. Jagdish Malav. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 36 Full PDFs related to this paper. READ PAPER.

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What is GGBS? Its Advantages and Disadvantages ...

What is Ground Granulated Blast Furnace Slag (GGBS)? The ground granulated blast furnace slag (GGBS) is a by-product of iron manufacturing which when added to concrete improves its properties such as workability, strength, and durability.. This material is obtained by the heating of the iron ore, limestone, and coke at a temperature of about 1500 o C. The …

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Technical Report UDC 669 . 162 . 275 . 2 : 666 . 943 . 2 ...

and ultrafine-grain cement developed specially for grouting. 4.1 Background of development of ultrafine-grain cement The development of the ultrafine-grain cement originated in mi-crofine blast furnace slag cement "Nittetsu Colloid",4) 230 000 tons of which were used in the Seikan Tunnel. In 1971, the "Committee

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Fine And Ultrafine Materials For Concrete Durability ...

India has developed highly innovative alternative product i.e. Ultrafine Slag (UFS), which is commercially known as Alccofine 1203, a patented product. Alccofine has been found to be even more effective than Micro Silica for early strength gain and early high impermeability.

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Effect of Ultrafine Spinel Sources on Slag Resistance and ...

： In order to clarify the effect of ultrafine spinel sources on slag resistance and microstructure of alumina -spinel castables,using tabular alumina and spinel as coarse aggregates, tabular alumina powders,spinel powders,calcium aluminate cement,spinel containing cement, spinel micro-powder and reactive alumina ultra-fines as matrix, alumina - spinel …

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Properties of cement grout modified with ultra-fine slag ...

The purpose of the study is to obtain a cement grout with improved performance. The grout mixes of the present study contain cement, ultra-fine slag (UFS), super plasticizer and water. Properties like flowability, bleeding, compressive strength and shrinkage of cement grouts have been studied. Rheological parameters were also studied in order to explain the grout …

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5.0 MICROFINE CEMENT GROUT LABORATORY TESTING …

Three types of cement were used, including Type V Premium Ultrafine Cementitious Grout manu-factured by U.S. Grout, Malad City, Utah; Rheocem-900 supplied by Master Builders Technolo-gies, Cleveland, Ohio; and NewCem slag cement manufactured by Blue Circle Cement, Baltimore, Maryland.

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Loesche-Separation Plant for Production of Ultrafine ...

14th global slag conference, Aachen, Germany 27.03.2019 Agenda Reduction of Clinker Factor Grinding of Slag and/ or Cement Properties of Slag containing Cement Idea and Implementation of Ultrafine Grinding Material Analysis – Cement Quality 01 05 04 03 02 Application of Ultra-Fine GGBFS06 Conclusion/Outlook07

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EFFECT OF ULTRA FINE SLAG REPLACEMENT ON DURABILITY …

EFFECT OF ULTRA FINE SLAG REPLACEMENT ON DURABILITY AND MECHANICAL PROPERTIES OF HIGH STRENGTH CONCRETE Darren T.Y. Lim*, Nanyang Technological University, Singapore Da Xu, Nanyang Technological University, Singapore B. Sabet Divsholi, Nanyang Technological University, Singapore B. Kondraivendhan, Nanyang Technological …

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Alkali Activated Slag And Portland/Slag Ultrafine Cement ...

Ultrafine Alkali Activated Slag (AAS) and Portland/Slag (P/S) cements have been commercially available in the United States for 2 and 5 years, respectively. Ultrafine cements have been the subject of research at Northwestern University for 6 years.Particle size of the ultrafine slag cement is characterized by 98% passing at 7 microns and a D50 at 3 microns in …

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Strength and Durability Properties Improvement of Bottom ...

ultra-fine slag material i.e. Alccofine as an alternative to cement. Results showed that 15% replacement of cement with Alccofine in a 40% bottom ash concrete has enhanced the compressive strength and improved the concrete quality and durability of the concrete mixture.

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(PDF) Mechanical and microstructural study of rice husk ...

Ultra-fine slag particles with average particle size in the range of 4 to 5 microns. RHA is partially replaced with ultra-fine slag at different levels of 0 …

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Shrinkage and strength of alkaline activated ground steel ...

Abstract This study evaluated the contributions of steel slag and activators ratio to the shrinkage of the alkali-activated ground steel slag (G)/ultrafine palm oil fuel ash (U) or AAGU pastes and mortars. The base materials were combined such that G/U+G varied from 0 to 0.8 (pastes) and 0–0.6 (mortars) with the use of 10M-NaOH aq and Na 2 SiO 3aq (Ms = SiO 2 /Na 2 O of 3.3) …

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Strength development characteristics of concrete produced ...

slag cement at higher temperatures was also used by studies in refs. [9–12]. In ref. [13], the author worked on the use of pelletised blast furnace slag and its effects on the freeze-and-thaw durability characteristics and reported its good performance in concrete. Although partial replacement of cement by SCM reduced the cement consumption, it

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Exposure characterization and risk assessment of ultrafine ...

The ultrafine particles were mainly gathered at 10.4 or 40 nm, and presented as lump-like agglomerates. The metal elements (Al and Pt) in the ultrafine particles originated from slag and iron ore. The risk level of the ultrafine particles was high, indicating the existing control measures were insufficient. Conclusions

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Influences of Ultrafine Slag Slurry Prepared by Wet Ball ...

This paper presents the effect of ultra-fine slag (i.e. 25% of alccofine) as a replacement of cement for different water to binder ratios (i.e. 0.38, 0.4 and 0.45). The effect of alccofine on the...

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(PDF) Properties of Concrete Modified with Ultra-Fine Slag

This paper presents the effect of ultra-fine slag (i.e. 25% of alccofine) as a replacement of cement for different water to binder ratios (i.e. 0.38, 0.4 and 0.45). The effect of alccofine on the ...

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Compressive strength, porosity and sorptivity of ultra ...

Ultra Fine Slag (RUFS) was obtained from EnGro Corporation limited, Singapore and was used as substitute to cement. Fine and coarse aggregate used was river sand and broken stone. Specific gravities of cement, ultra fine slag, fine aggregate and coarse aggregate were found to be 3.15, 2.90, 2.64 and 2.68 respectively. The

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Nickel Ultra Fine Powder | JFE MINERAL Co., LTD.

Nickel ultra fine powder with average grain size of 0.2 μm. Ultra-fine, high-purity nickel powder with a purity of at least 99.9% is used in manufacturing multilayer ceramic capacitors for smartphones, laptops, and ADAS/collision-avoidance systems and other electronically controlled automotive systems. The use of these ceramic capacitors helps ...

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Strength and durability studies on high volume ready-made ...

In the present work commercially available ultra fine slag (readymade ultrafine slag - RUFS) with an average size of 5 µm was used as mineral admixture in three different percentages of 30, 40 and 50 as substitute to cement. Results of present work were compared to precursor slag of author's earlier works.

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EFFECT OF ULTRA FINE SLAG REPLACEMENT ON …

EFFECT OF ULTRA FINE SLAG REPLACEMENT ON DURABILITY AND MECHANICAL PROPERTIES OF HIGH STRENGTH CONCRETE Darren T.Y. Lim*, Nanyang Technological University, Singapore Da Xu, Nanyang Technological University, Singapore B. Sabet Divsholi, Nanyang Technological University, Singapore B. Kondraivendhan, Nanyang Technological …

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ApplicationsofSteelSlagPowderandSteelSlagAggregatein Ultra ...

steel slag aggregate with the hardened paste. ­is may be attributed to the activating e•ect on the steel slag aggregate produced during the initial high-temperature curing. 3.4. Pore Structures. Figure 8 shows the pore structures of the hardened pastes at28d. Owing to the very low water-to-binder ratio, the pore structure of hardened paste ...

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Strength and durability studies on high volume ready-made ...

It fills voids and modifies the microstructure in turn enhancing the strength and durability of concrete. In the present work commercially available ultra fine slag (readymade ultrafine slag - RUFS) with an average size of 5 µm was used as mineral admixture in three different percentages of 30, 40 and 50 as substitute to cement.

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Review of The Cement-Based Composite Ultra-High ...

With the introduction of the water/ultrafine particles ratio (w/F v) (Eq. 5), (Fehling et al., 2014), the combinations of ultrafine particles were effectively used for controlling the strength. This process effectively increases the strength and is based on the volume. ... Copper Slag (CS) or Granulated Copper Slag (GCS) is a by-product ...

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Study on Fractal Characteristics and Performance of ...

Ultrafine slag, which is ground with the process of vertical mill, is tested with the laser granulometric distribution apparatus quickly. The characteristics of granulometric distribution of ultrafine slag are analyzed using fractal theory. The fractal dimension of different fineness powders is tested and counted. The result shows that ultrafine slag powders have self-similar …

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Development of Ultrafine Slag-Based Geopolymer Mortar for ...

Keywords: 27 Ultra-fine ground granulated blast-furnace 28 slag 29 Flyash 30 Reinforced concrete 31 Repairing 32 Static load 33 3 4 a b s t r a c t …

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Characteristics of Blended Geopolymer Concrete Using ...

Ultrafine ground granulated blast furnace slag (UFGGBFS) having material size between 4 to 6 microns, specific surface area 12,000 cm 2 /gm, specific gravity of 2.72 has been used. The chemical composition of UFGGBFS is given in Table 1.

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[PDF] Use of Ultrafine Slag in High Strength Concrete ...

This paper presents the effect of Ultrafine Slag in high strength concrete with cement replacement of 5%, 10%, 15% and 20%. Nowadays high strength concrete generally made with Ordinary Portland Cement. In this investigation Portland Pozzolana Cement (PPC) Fly ash based was used to make concrete more environmental friendly. In this experiment five mixes were prepared in …

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Influence of Steel Slag-Superfine Blast Furnace Slag ...

A composite mineral admixture was prepared by steel slag and superfine blast furnace slag. The influence of superfine blast furnace slag content of the composite mixture on the mortar and concrete was investigated. The results show that the composite mineral admixture may decrease the strength of concrete at the early age but improve the strength development …

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Compressive strength and hydration process of sodium ...

Superfine slag was obtained by wet grinding process, and the strength of this slag activated by 3 % Na 2 O-E of SC could reach 20.8 MPa at 3-day age and 40.5 MPa at 28-day age . However, increasing the slag fineness would cause more carbon emissions due to the superfine treatment, and carbon emissions of the slag with D50 = 3.1 μm were about ...

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A Comparative Study of Fire Resistance of Concrete ...

A Comparative Study of Fire Resistance of Concrete Incorporating Ultrafine Slag. 1. Jaypee University of Information Technology Solan India. 2. Indian Institute of Technology (BHU) Varanasi India. 3. United College of Engineering and Management Allahabad India.

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Use of Ultrafine Slag in High Strength Concrete

In this experiment Ultrafine Slag (Alccofine 1203) of blain value 12000 cm2/gm was used. It is a product based on slag of high glass content with high reactivity obtained through the process of controlled granulation.This paper presents the effect of Ultrafine Slag in high strength concreteon its

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A Comprehensive Review of Ultra-Fine Materials as ...

Early age strength is possible with ultra-fine materials such as ultra-fine fly ash and ultra-fine slag in cement concrete. Due to smaller particle size they react much faster and impart better early strength in cement concrete. This paper critically reviews the feasibility of ultra-fine material usage as supplementary cementitious materials.