{"id":15537,"date":"2026-05-01T09:54:27","date_gmt":"2026-05-01T09:54:27","guid":{"rendered":"https:\/\/robusttech.site\/agro\/?page_id=15537"},"modified":"2026-08-21T04:46:50","modified_gmt":"2026-08-21T04:46:50","slug":"silica-fume","status":"publish","type":"page","link":"https:\/\/robusttech.site\/agro\/products\/silica-fume\/","title":{"rendered":"Silica Fume"},"content":{"rendered":"\t\t
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Silica Fume \n
(Known as Micro Silica) <\/h2>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\tSilica fume is a highly pozzolanic material that is used to enhance mechanical and durablity properties of concrete. It may be added directy to concrete as an individual ingredient or in a blend of portland cement and silica fume.

Initial use of silica fume in concrete was mostly for cement replacement, along with water-reducing admixtures (wras). Eventually, the availablity of high- range water – reducing admixtures (hrwras, often referred to as superplasticizers) allowed new possibilities for use of silica fume to produce high levels of performance.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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USES:<\/h4>

Micro concrete, high strength concrete, hydro electric power station, nuclear power station, petroleum referineries, construction of multi stroyed buildings, concrete roads for highways, water dams, tunnels, cement industries etc.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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ADVANTAGES:<\/h4>

Sulphate resistence, chloride resistence, reduce alkalic silica reaction, improve concrete workabilty, reduce slump loss, reduce segregation, reduce bleeding and plastic shrinkage crack, reduce concrete carbonation.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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DISADVANTAGES:<\/h4>

Do not use 10% above dose, reason is usage of 10% above silica reduces concrete strength and ductility.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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PROPERTIES:<\/h4>

SPECIFIC GRAVITY : 2.20 \u2013 2.23 <\/strong>
BULKS DENSITY : 375 \u2013 420 Kg\/m3 <\/strong>
SIO2 : ABOVE 85 % <\/strong>
LOSS ON IGNITION : < THAN 2.30 % <\/strong>
MOISTURE CONTENT : < THAN 1.0 % <\/strong>
COMPLIANCE WITH INTERNATIONAL STANDARD LIKE BS 13263 Part-1, ASTM C-1240, IS \u2013 15388.<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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DOES:<\/h4>\n5.0 % – 10.0 % BY WEIGHT OF CEMENT REPLACEMENT. AND IF ANY POZZOLONIC ADMIXTURE USED LIKE FLYASH,
5%-10% BT WEIGHT OF CEMENT WITHOUT REPLACEMENT.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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\u00a0PACKING:<\/h4>

The product is supplied in 25 kg single lined hdpe bag.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t

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HEALTH & SAFETY INSTRUCTION:<\/h4>

Silica fume is non-toxic nature, splashes of slilcafume on skin or eyes should be washed of with clean running water.in the event of prolonged irritation, medical attention shall be sought immeditely.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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HS CODE: 25239090<\/h4>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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GRADES:<\/h4>\t\t\t\t\t\t\t\t<\/div>\n\t\t
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Grade 1:- Sio2 above 80%<\/h6>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Grade 2:- Sio2 above 90%<\/h6>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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TECHNICAL SUPPORT:<\/h4>

Greenfield Tech Projects<\/h5>