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the approximate specific gravity of silica fume is 2.2. using of silica fume will reduce the content of cement in the concrete mix. also, it will increase durability of structure and this, in turn, will reduce maintenance. this will have help in preserving the resources and Scope. 1.1 This specification covers silica fume for use in concrete and other systems containing hydraulic cement.

10, Weight of Cement per yd3: A, J. 11, Weight of Fly Ash per yd3: B, K. 12, Weight of Silica Fume per yd3: C, L. 1 Sep 2011 Specific gravities shall be provided for the cement and silica fume along with. SSD bulk specific gravity and absorptions for the fine and coarse A kind of ultrafine silica fume was added into the cement-stabilized soil to inhibit swelling The specific gravity tests and XRD tests required samples of powder. its own weight without any external or internal as silica fume, with a grain size distribution in the The specific gravity of micro-silica and nano-silica. grade concrete with partial replacement of cement by silica fume by 0, 5, 10, 15and by 20%. specific gravity 2.74 and fineness modulus 7.20 were used. 2.1.

Silica fume specific gravity is 2.2, which is somewhat lighter than portland cement, which has a specific gravity of 3.15. Thus, adding silica fume to concrete mixture will not density the concrete in terms of increasing the density of the concrete. Specific surface: Specific surface is the total surface area of a given mass of a material Silica Fume – Densified Bulk Truckload 46,000 lbs.

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a) ASTM C 1240-2000 'Standard specification for use of silica fume as a mineral admixture in hydraulic total specific external and internal surface area of. 26 Jan 2017 The specific gravity of the silica fume concrete is 2.2. Its specific surface area is to be 20,000 sq.meters / kg. Particle size is less than 1 Silica fume has a specific gravity of about 2.2, which is some what lighter than Portland cement, which has a specific gravity of 3.15 .Thus, adding silica fume to a .

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The specific gravity of silica fume is 2.2. Silica fume is added with OPC to enhance the strength of HSCC. 50% of fly ash and 50% of GGBS are used for making HSGC. OPC 53 grade cement was chosen for making HSCC.
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Variations in specific gravity are attributed to the non-silica components of the various silica fumes. Fumed silica is made from flame pyrolysis of silicon tetrachloride or from quartz sand vaporized in a 3000 °C electric arc. Major global producers are Evonik (who sells it under the name Aerosil), Cabot Corporation (Cab-O-Sil), Wacker Chemie (HDK), Dow Corning, Heraeus (Zandosil), Tokuyama Corporation (Reolosil), OCI (Konasil), Orisil (Orisil) and Xunyuchem(XYSIL). working with silica fume and silica-fume concrete. Different chapters of the Manual may be of interest to concrete specifiers, concrete producers, concrete contractors, or concrete inspectors. The Manual is organized as follows: Chapters 1 and 2 provide basic information explaining what silica fume is and how it is used in concrete. The specific gravity of silica fume is 2.20-2.30.

Its specific surface area is to be 20,000 sq.meters / kg. Particle size is less than 1 micron with average diameter of 0.1 micron. The shape of the particle is spherical. It should be in Amorphous in nature. Silica fume is available in the following states (see Figure 6): As is bulk powder: Due to the low specific gravity of silica fume (~2.2), the bulk powder becomes very bulky and difficult to handle and transport.
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The bulk density of the as-produced silica fume ranges from 130 to 430 kg/m 3. Compacted or densified silica fume and slurried silica fume have a bulk density that can range from 200 to 600 and 1300 to 1400 kg/m 3, respectively (ACI-Committee-234, 2006). Silica fume is sold in powder form but is more commonly available in a liquid. Silica fume is used in amounts between 5% and 10% by mass of the total cemen- titious material. It is used in applications where a high degree of impermeability is needed (Fig.

Silica Fume used in this study brought from Shisher Export House, Raipur,(C.G.).
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using of silica fume will reduce the content of cement in the concrete mix. also, it will increase durability of structure and this, in turn, will reduce maintenance. this will have help in preserving the resources and Scope. 1.1 This specification covers silica fume for use in concrete and other systems containing hydraulic cement.

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Table 1: Physical properties of expansive soil, micro silica fume. Property. Expansive Soil Micro silica fume.