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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).

    Ultra-fine slag activated by sodium carbonate at ambient

    Therefore, NC-activated ultra-fine slag expected to be developed as a substitute for cement. In the NC-activated ultra-fine slag system, the dissolution of slag in NC solution was achieved easily; calcium ions were adsorbed by the carbonate in NC, and CaCO 3 was easy to be formed,as shown in Fig. 8; after that, as the pH value was high enough

    Slag Cement Lehigh Hanson, Inc.

    This rapid cooling, called quenching, creates glassy granules, which are then ground into the fine powder known as slag cement. Slag cement is as old as iron-making itself. In the 1700s, it was combined with lime to make mortar. One of the first major uses of slag-lime cements was construction of the Paris underground in the late 1800s.

    Properties of Concrete Modified with Ultra-Fine Slag

    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). The effect of alccofine on the concrete strength properties were studied at 7 and 28 days wherein considerable

    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.

    Properties of cement grout modified with ultra-fine slag

    Apr 22, 2017· 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 workability.

    Alkali Activated Slag And Portland/Slag Ultrafine Cement

    The chemical composition of the slag used in these cements is 35% SiO 2, 16% Al 2 O 3, and 43% CaO. The composition of the portland/slag cement, which is a 25/75 blend, is therefore between the bulk composition of portland cement and the slag. Both of the ultrafine cements permeate fine sands when formulated at high water-to-cement ratios.

    Compressive strength, porosity and sorptivity of ultra

    Sep 01, 2016· 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

    EFFECT OF ULTRA FINE SLAG REPLACEMENT ON DURABILITY

    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

    What is slag cement

    Slag cement is a hydraulic cement formed when granulated blast furnace slag (GGBFS) is ground to suitable fineness and is used to replace a portion of portland cement. It is a recovered industrial by-product of an iron blast furnace. Molten slag diverted from the iron blast furnace is rapidly chilled, producing glassy granules that yield

    Properties of Concrete Modified with Ultra-Fine Slag

    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). The effect of alccofine on the concrete strength properties were studied at 7 and 28 days wherein considerable

    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.

    Properties of cement grout modified with ultra-fine slag

    Apr 22, 2017· 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 workability.

    LOESCHE METHOD FOR MANUFACTURING ULTRA-FINE

    furnace slag. Ultra-fi ne blast furnace slag could reduce one of the main weaknesses of cements containing blast furnace slag, that being too little early strength for many applications (Diagram 1). As is already apparent today, the ultra-fi ne blast furnace slag could be

    EFFECTIVENESS OF ULTRA-FINE GROUND SLAG IN CEMENT

    allows saving Portland cement without reducing significantly the concrete strength. The ability to obtain ultra-fine mineral fillers from industrial by-products with high specific surface area appears with grinding technology development. Two types of ultra-fine ground granulated blast furnace slag

    Properties of Concrete with Ground Ultrafine Phosphorus Slag

    Dec 01, 2000· Ultrafine phosphorus slag (UFPS) with surface area greater than 6000 cm 2 /g is a vitreous powder similar to granulated blast-furnace slag (GBFS). The comparative investigation of UFPS and GBFS in this paper showed that UFPS could improve the fluidity, strength, and durability of concrete at partial replacement of cement.

    ultra fine slag cement non metallic used

    ultra fine slag cement non metallic used. There are forty years of manufacturing history, with three major production bases,over 160 senior R&D engineers and 600+ large and medium-sized digital processing equipment, The first-line technicians and professional after-sales service personnel up to 2,300+ and 200+ respectively.

    SuperFine Cement Bagged Material Surecrete Inc.

    It is the workhorse of the micro fine / ultra fine cement industry. Uses for SuperFine cement include dam foundation grouting, pre and post excavation grouting, soil stabilization and water cutoff grouting. SuperFine's slag based formulation makes it especially suitable for grouting in aggressive soils.

    Influence of ultra-fine slag and silica fume on properties

    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.

    EFFECT OF ULTRA FINE SLAG REPLACEMENT ON DURABILITY

    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

    ULTRAFINE CEMENT

    SUPERFINE is a blast furnace slag based ultrafine cementitious grout material with a D95 particle size of 10 micron and a D50 of 3 micron. It is able to permeate very small openings such as pores and microscopic rock fissures, and improve strength and reduce permeability. ULTRAFINE CEMENT Specific Gravity Particle Size D95 Particle Size D50

    Properties of Concrete Modified with Ultra-Fine Slag

    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). The effect of alccofine on the concrete strength properties were studied at 7 and 28 days wherein considerable

    Properties of Concrete with Ground Ultrafine Phosphorus Slag

    Dec 01, 2000· Ultrafine phosphorus slag (UFPS) with surface area greater than 6000 cm 2 /g is a vitreous powder similar to granulated blast-furnace slag (GBFS). The comparative investigation of UFPS and GBFS in this paper showed that UFPS could improve the fluidity, strength, and durability of concrete at partial replacement of cement.

    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.

    ultrafine slag grinding

    For slag grinding, moisture content must be less than 1.5% which can be slag and ultra-fine slag) to produce mass concrete for high rise buildings. Micro Powder Production Process of the Slag and Coal Ash Crusher the production of slag cement and achieve ultra-fine grinding and fine grinding, to meet the new standards,

    Properties of Cement Grout Modified with Ultra-fine Slag

    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 workability. The results show that, cement replacement with

    Influence of ultra-fine slag and silica fume on properties

    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.

    Fine And Ultrafine Materials For Concrete Durability

    Reference mix of M40 grade with OPC 400 kg/m 3, 160 kg water and 2 kg admixture were compared with 360 kg OPC, 40 kg Ultra-fine slag (UFS), 160 kg water & 2 kg admixture for chloride permeability test and test results are shown in Table 5. Results show that UFS could produce concrete with very low permeability i.e., very high durability

    ultra fine cement powder AD DIFFUSION

    ultra fine powder grinding cement lime coal clay slag. ultra fine powder grinding cement lime coal clay slag micro mini grinder; What We Do. As one of the leader mining and construction equipment manufacturer in China, A&C Machinery has participated in many turnkey plant in Asia countries.

    Cementing Products Cementing Products

    Cementing Products are used to support and protect well casings and the assist in isolating zones. To achieve the safest, most profitable wells, and maintaining environmentally safe zonal isolation, using the cementing process in the wellbore is key to its creation and maintenance.

    PROPERTY IMPROVEMENT OF PORTLAND CEMENT BY

    When both MK (10 percent) and ultra-fine slag (20 or 30 percent) were incorporated into PC together, both the compressive strength and the fluidity of the blended cement paste was improved. MK is a high active pozzolanic mineral admixture and slag is a latent hydraulic mineral.

    Effects of ultra fine materials on workability and

    Collins, FG & Sanjayan, JG 1999, ' Effects of ultra fine materials on workability and strength of concrete containing alkali activated slag as a binder ', Cement and Concrete Research, vol. 29, no. 3, pp. 459

    Experimental study of strength relationship of concrete

    ultra fine slag acts as filler thus also reduces permeability. In this paper mechanical strength development of high strength concrete (M50) with partial replacement of cement by ultra fine slag (alccofine) is carried out. Comparison is done between cubical strength and cylindrical strength of M50 grade concrete using ultra fine slag. Key words

    Item 421 Hydraulic Cement Concrete

    sand, recycled crushed hydraulic cement concrete, slag, lightweight aggregate, or a combination thereof. Provide fine aggregate free from frozen material and from injurious amounts of salt, alkali, vegetable matter, or other objectionable material. Provide fine aggregates with the requirements in Table 5 unless otherwise shown on the plans. Table 5

    Properties of Concrete with Ground Ultrafine Phosphorus Slag

    Dec 01, 2000· Ultrafine phosphorus slag (UFPS) with surface area greater than 6000 cm 2 /g is a vitreous powder similar to granulated blast-furnace slag (GBFS). The comparative investigation of UFPS and GBFS in this paper showed that UFPS could improve the fluidity, strength, and durability of concrete at partial replacement of cement.

    Microfine Cement > Multiurethanes Cement Grouting Products

    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.

    SuperFine Cement Bagged Material Surecrete Inc.

    SuperFine is an ultra fine cement with a d95 of 10 microns and a d50 of 3 microns. It is the workhorse of the micro fine / ultra fine cement industry. Uses for SuperFine cement include dam foundation grouting, pre and post excavation grouting, soil stabilization and water cutoff grouting.

    Effect of ultra-fine slag on mechanical and permeability

    The addition of ultra-fine slag up to 15%, as partial replacement of metakaolin resulted in an increase in strength characteristics. Similar improvement in durability properties was also observed with the inclusion of ultra-fine slag up to 15%. Beyond this optimum content of 15%, further increase in ultra-fine slag content affected the

    Review of 14th Global Slag Conference 2019

    Mar 27, 2019· Using such ultra-fine slag may allow a clinker factor down to 30%, as well as applications in shotcrete, providing low heat of hydration and high early strength. Ultra-fine GGBFS can also be used to produce ultra-high-performance concrete with strength of beyond 150MPa compressive strength, at a lower cost than when using silica fume, partly

    slag in concrete Topic

    Nov 30, 2020· The use of slag in concrete has several benefits, including reduced energy, reduced greenhouse gas emissions, and reduced use of raw materials. Various types of slag are produced: Blast-furnace slag—The nonmetallic product, consisting essentially of silicates and aluminosilicates of calcium and of other bases, that is developed in a molten condition simultaneously with iron in a blast

    US5398759A Set retarded ultra fine cement compositions

    Set retarded ultra fine cement compositions which remain pumpable for a predictable period of time at temperatures up to about 400° F. are provided. The compositions are basically comprised of an ultra fine hydraulic cement, sufficient water to form a pumpable slurry and a set retarder comprised of a water soluble aliphatic compound containing at least three carbon atoms and at least one

    Loesche-Separation Plant for Production of Ultrafine

    Apr 03, 2019· 14th global slag conference, Aachen, Germany 27.03.2019 0 10 20 30 40 50 60 70 80 90 1 10 100 compressivestrength[MPa] days 39 24 * CEM I Slag cement with ultra-fine GGBFS CEM I reference cement Slag cement with standard fineness of GGBFS Example CEM III/A 52.5N 39 Conclusion/Outlook New process for ultra-fine slag has been developed.

    How to Make Ultra High Performance Concrete Hunker

    The standard ratio is 11 percent Portland cement, 41 percent coarse aggregates (such as gravel or crushed stone) and 26 percent fine aggregates, such as sand. The remaining 22 percent is a combination of air and water (6 percent air and 16 percent water) in most concrete, but in ultra high performance concrete you need to use less water.

    Ashtech Fly Ash and Ashtech Ultra Fine Fly Ash Wholesaler

    Ashtech (India) Pvt. Ltd., the leading Manufacturer, Supplier and trader enterprise was founded in the year 2002, with an aim to bring forth superior quality of Construction Products. we are involving in producing high strength production such as Fly Ash, White Cement and Gypsum Plaster.Our consistent efforts and extensive industry experience led us to cater finest quality construction

    Experimental study of strength relationship of concrete

    ultra fine slag acts as filler thus also reduces permeability. In this paper mechanical strength development of high strength concrete (M50) with partial replacement of cement by ultra fine slag (alccofine) is carried out. Comparison is done between cubical strength and cylindrical strength of M50 grade concrete using ultra fine slag. Key words

    Ground granulated blast-furnace slag Wikipedia

    Ground-granulated blast-furnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder.Ground-granulated blast furnace slag is highly cementitious and high in CSH (calcium silicate hydrates) which is a strength enhancing

    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.

    Cement mill Wikipedia

    Blastfurnace slag cement may include up to 70% ground granulated blast furnace slag. The efficiency of the early stages of grinding in a ball mill is much greater than that for formation of ultra-fine particles, so ball mills operate most efficiently by making a coarse product, the fine fractions of this then being separated, and the coarse

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