Silica fume as high-strength admixture in concrete industry

Silica fume as high-strength admixture in concrete industry

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The use of micro-silica fume as adulterating agent in the concrete industry is the earliest, most successful and widely used fields in the comprehensive utilization of micro-silica fume. Because microsilica has the characteristics of fine particles, large specific surface area, high purity of SiO2, strong volcanic ash activity and other…
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Microsilica for Alumina–Mullite Ceramic Composites

Microsilica for Alumina–Mullite Ceramic Composites

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Mullite(3Al2O3.2SiO2) is a ceramic material with high temperature stability, high temperature creep resistance, high temperature mechanical properties and excellent chemical stability, low temperature expansion and good electrical insulation. As high-temperature refractory material and composite materials, mullite is widely used in such fields as national defense, industry and civil use. The…
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95u grade microsilica factory

95u grade microsilica factory

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Microsilica 95 grade is dry silica fume available in two main forms: 95U, 95D. Microsilica Chemical composition and phtsical properties are regularly tested by SGS and international standards. Standards: American Society for Testing and Materials European Committee for Standardisation. 95u grade microsilica index items standard value: SiO2(Silicon Dioxide) Min. 95.0%…
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CE standard microsilica

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CE certification is a symbol of safety compliance rather than quality certification mark. It is the main requirement that forms the core of the European directives. CE standard microsilica: Microsilica , also called silica fume.it is a byproduct of producing silicon metal or ferrosilicon alloys. Silicon metal and alloys are…
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CSA standard microsilica in building concrete

CSA standard microsilica in building concrete

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CSA standard: CSA A5 – Portland Cement; CSA A8 – Masonry Cement; CSA A23.5 – Supplementary Cementing Materials; CSA A362 – Blended Hydraulic Cement; CSA A363 – Cementitious Hydraulic Slag; CSA A456.1 – Chemical Test Methods for Hydraulic Cement, Supplementary Cementing Materials, and Hydraulic Slag; CSA A456.2 – Physical Test…
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ASTM C1240 Silica Fume in Cementitious Mixtures

ASTM C1240 Silica Fume in Cementitious Mixtures

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ASTM Standards: C109/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens) C114 Test Methods for Chemical Analysis of Hydraulic Cement C125 Terminology Relating to Concrete and Concrete Aggregates C138 / C138M concrete density (unit weight), production and determination of gas content C135 Test…
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Density of microsilica

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The bulk density of silica fume depends on the degree of densification in the silo and varies from 130 (undensified) to 600kg/m3 (densified). The specific gravity of silica fume is generally in the range of 2.2 to 2.3. Condensed silica fume is essentially silicon dioxide in noncrystalline (amorphous) form. Since…
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Silica fume as fibre cement additive

Silica fume as fibre cement additive

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Microsilica, or silica fume, is an amorphous type of silica dust mostly collected in baghouse filters as by-product of the silicon and ferro-silicon production. Microsilica consists of spherical particles with an average particle size of 150 nm and a specific surface area of typically 20 m2/g. The chemical and physical…
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