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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.
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 …
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 …
The invention belongs to the civil engineering material technical field, in particular relates to a concrete erosion-resistant agent based on ultrafine slag powder and use method thereof. The concrete erosion-resistant agent is composed of ultrafine slag power, polycarboxylic acid water reducer, alunite, dickite and dehydrate gypsum; by adopting the invention, concrete can be …
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)
M5 consists of a blend of ultrafine portland and slag cements. M1 is 100 percent ultrafine slag and M3 is 100 percent ultrafine portland. Because …
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.
Ultra fine slag materials are very much important for improving the durability and workability of concrete to sustain a longer life span and producing a greener andquality concrete. Incorporating ultra fine slag as a mineral admixture improves the workability and pump ability of fresh concrete. The ultra fine slag acts as filler thus also ...
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
： 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 …
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 …
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 …
Ground granulated blast furnace slag (GGBFS), a byproduct of iron smelting, contains silicates, alumina and quicklime (CaO). Like lime, GGBFS reacts directly with water to produce CA(OH) 2. Portland Cement . Portland cement is hydraulic cement produced by pulverizing clinker, which consists of calcium silicates formed from limestone (CaCO. 3
Keywords: ultra fine slag, durability, chloride penetration, corrosion, rapid chloride migration test Abstract. Improving the durability of concrete to sustain a longer life span and producing a greener concrete are becoming important criteria in obtaining quality concrete. Incorporating Ground Granulated Blast-furnace Slag (GGBS) as a mineral
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 ...
In the present study, ultra-fine slag (D50 = 8.1 μm, 4.3 μm, and 3.1 μm) was activated by sodium carbonate (2%, 4%, and 6% Na 2 O-E) at ambient temperature, and the main conclusions were drawn as follows. (1) Owing to the high reactivity of ultra-fine particles, slag was efficiently activated by NC at ambient temperature.
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 …
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 …
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 be optimum.
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.
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.
This invention relates to a process and system for treating ultra fine powder steel slag, which comprises: collecting the steel slag into a tank and carrying the tank onto a tipping device by a hoisting equipment; operating the tipping device to transport the steel slag to a granulating device and granulating the steel slag in the granulating device to form granulated slag; transporting …
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 …
Grindable Materials of Ultrafine Grinder. SBM ultrafine powder mills main include HGM series ultrafine grinding mills and CLUM series vertical roller mills. They can process hundreds of ore materials, grind hard stone into fine powder. SBM ultrafine …
The quality of slag is governed by IS 12089 of 1987.Ultra fine slag is more advanced form of GGBS in which slag is further ground to less than 20 micron. As a result its specific surface area is increased dramatically to 3000-5000m2/kg (Bet Analysis). Particle shape of ultrafine slag is spherical (Scanning electron microscope) which due to ball ...
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.
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 …
The particle size and distribution of SUPPERPOZZ P500 TM is a key characteristic in ensuring the product's superior performance. SUPPERPOZZ P500 TM particles range in size between 0.1 - 30 microns with a mean particle diameter of 3.9 to 5 microns. This is significantly finer than Portland cement, other commonly used cement types and upplementary cementitious …
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