07Mar 2018 by admin
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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07Mar 2018 by admin

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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03Mar 2018 by admin
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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03Mar 2018 by admin
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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28Feb 2018 by admin

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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24Feb 2018 by admin
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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24Feb 2018 by admin
Microsilica technical data sheet

Microsilica technical data sheet

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Microsilica powder for concrete is the original silica fume product. High quality, consistent properties and lightness of colour are the special characteristics of Microwhite. Elkem microsilica Specifications: microsilica for concrete: microsilica grade 970D microsilica grade 940 microsilica grade 920E microsilica grade 920 ASTM microsilica for refractory: microsilica grade 971 microsilica…
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23Feb 2018 by admin

Silica fume concrete seminar report

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INTRODUCTION The use of pozzolanic materials is an old as that of the art of concrete construction. It was recognized long time age, that the suitable pozzolona used in appropriate amount, modify certain properties of fresh and hardened mortars and concretes. It has been amply demonstrated that the best pozzolona…
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