750Kg/M3 Micro Silica Fume Concrete For Oil Field Cementing
92% Densified Micro Silica Fume for High-strength Concrete, Oil Field Cementing, Bridges
1. Micro Silica Fume Introduction
92% Densified Microsilica ( Silica Fume Grade 92 ) is a pozzolanic material that consists primarily of fine silicon dioxide particles in a non-crystalline form, the min silicon dioxide (SiO2) is 92%. Our 92% condensified silica fume is strictly complied with ASTM C-1240 silica fume standard. Densified Silica Fume is the most revolutionary concrete additive to have been developed in recent times.
2. Specifications
| Analysis | Result | ||||
| SF85 | SF88 | SF90 | SF92 | SF94 | |
| SiO2(%) | 86.16 | 88.56 | 91.56 | 93.67 | 96.93 |
| Fe2O3(%) | 0.7 | 0.65 | 0.35 | 0.2 | 0.2 |
| Al2O3(%) | 0.38 | 0.26 | 0.22 | 0.2 | 0.2 |
| CaO+MgO(%) | 0.4 | 0.36 | 0.36 | 0.3 | 0.3 |
| K2O+Na2O(%) | 0.3 | 0.28 | 0.2 | 0.2 | 0.2 |
| Moisture(%) | 1.77 | 1.66 | 1.66 | 0.82 | 0.91 |
| Loss on lgnition(L.O.I)@975℃ (%) | 3.6 | 2.92 | 2.07 | 1.92 | 1.91 |
3. General advantages
Strength Economy:
● Increased compressive strength.
● Increased flexural strength.
● Greater strength development.
● Potentially smaller structural section.
● Less rebound & wastage in shortcreting increase productivity.
Durability General:
● Increased concrete density.
● Improved impremeability to agressive agent.
● Reduced susceptibility to sulphate attack & alkali-aggregate expansion.
● Improved cohesiveness reduces segregation & pumpability.
● Reduced bleeding allows early finishing.
4. Package
25kg/ plastic bag, 950kg/ jumbo bag,1000kg/ jumbo bag
5. Applications
Densified Silica Fume products include: (630-680 kg/m³)
Strength Economy:
– Increased compressive strength.
– Increased flexural strength.
– Greater strength development.
– Potentially smaller structural section.
– Less rebound & wastage in shortcreting increase productivity.
– Cement replacement opportunities.
Durability General:
– Increased concrete density.
– Improved impremeability to agressive agent.
– Reduced susceptibility to sulphate attack & alkali-aggregate expansion.
– Improved cohesiveness reduces segregation & pumpability.
– Reduced bleeding allows early finishing.
– Improved finishing & electrical resistivity.
Due to many benefits imparted to concrete, it is highly recommemded for use in the following application :
– Mining & Tunnelling.
– High rise buildings.
– For producing all concrete products including readymix concrete.
– Motorways, bridges & dams etc
Refractory
High Temperature: Microsilica reacts with alumina forming mullite which gives a castable high strength at up to 1700 degree.
Heat Up: Improved green strength
Flow: Reduced water demand when casting
Dense Castables: Void filling for density for lower permeability, higher strength and higher thermal conductivity
Other
– Casting
– Insulation
– Non cementitious building products
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