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Mechanical grinding of steel slag is investigated and characterized using X-ray diffraction and size analyzer. The results indicate that the obtained ultrafine powders contain active mineral phases suitable for ordinary Portland cement (OPC)-Ca(OH)2, 2CaO·SiO2, 2CaO·Fe2O3. We have proved and first pointed out that the steel slag induces phase transition during grinding process and the Blaine ...

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) as activators ...

Abstract. The present study is to elucidate the efficacy of ultra-fine slag and CaCl 2 in ameliorating the engineering properties of expansive soils. An experimental program has evaluated the effects of ultra-fine slag (4, 8, and 12%) and CaCl 2 (0.5 and 1%) contents on the FSI, plasticity, compaction, unconfined compressive strength, and microstructural (SEM and XRD) tests of expansive …

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.

The effects of ultra-fine slag (UFS) and silica fume (SF) on the compressive strength and durability-related properties of high-strength concrete were compared, and the mechanism of these effects was analysed. Portland cement was replaced with UFS or SF in amounts of 10% and 15% by mass in cement with a water/binder ratio of 0·25.

This study aims at evaluating the effect of ultrafine granulated copper slag (UGCS) on hydration development of blended cement and mechanical properties of mortars. The UGCS with the median particle size of 4.78 μm and BET surface area of 1.31 m2/g was used as a cement replacement to prepare blended cements. Hydration heat emission of blended cement and mechanical …

Ultrafine slag particles played an important role in the compactness performance of harden body. The compactness of pates was improved with the grind duration extending, which was consistent with the results of MIP tests. This further explained the increase of compressive strength of concrete with ultrafine slag. The cement particles were ...

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.

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

The ultrafine slag is a cementitious material (CM) having a specific surface area greater than 9500, preferably greater than 11,000 and most preferably greater than 13,000 square centimeters per gram and, by weight, less than 3%, preferably less than 1.5% and most preferably no particles of the slag larger than 7.8 micrometers (μm) in diameter.

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 which one mix was ...

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 characteristics.

ultrafine slag grinding. slag crushing plant slag crushing mill cost of slag crushing machines For the best use of slag it is very important to choose the slag crushing plant to crusher the small size materials will be crushed into fine size or even ultrafine size Grinding mill plays an important role in the slag

Based on the fundamental principles of preparing reactive powder concrete (RPC), a new type of RPC was composed by replacing cement with the active powder component ultra-fine ground granulated blast-furnace slag (GGBS). GGBS is proposed as a potential alternative to silica fume (SF), which is currently the most commonly used RPC mineral admixture. In order to improve the brittleness …

International Conference on Structural Engineering and Mechanics PROPERTIES OF HIGH STRENGTH CONCRETE CONTAINING ULTRAFINE SLAG. Kaliprasanna Sethy. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 37 Full PDFs related to this paper. Read Paper. Download PDF.

A number of researchers have attempted to use it as a concrete-repairing material. To enrich the literature with results on geopolymer as a concrete-repairing material, the present study reports experimental works performed on geopolymer mortars prepared …

ALPA powder equipment- Steel Slag Superfine Powder Sorting Machine Ultrafine Particle ClassificationFeatures and Advantages1. * Available D50:1.5-25μm2.* The...

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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.

ULTRA-FINE BLAST FURNACE SLAG Dr. Holger Wulfert, Dr. Winfried Ruhkamp, Andre Bätz, Paul Erwerth Material Tests: Prof. Ludwig, Bauhaus University, Weimar, FIB Blast furnace slag grain with reaction seam of CSH phases (taken by B. Möser, Bauhaus University, Weimar, FIB)

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 ...

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. 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).

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 …

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.

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 which one mix …

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

Ultra fine slag replaces cement with three different percentages viz 5, 10, and 15% to study the compressive strength, porosity and sorptivity. Performance of commercially available ultra fine slag was found to be inferior than ground one and concrete with 10% ultra fine slag was found to …

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

ultrafine grinding Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number CN200810160980A Other languages Chinese (zh) Other versions CN101676036B (en ...

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 process is carried out in a blast …