Description

Bemsun microsilica, a good admixture for concrete.

1. Microsilica performance in concrete

a. microsilica admixture is usd in in high performance concrete

Performance:
Can prevent concrete from the corrosive chloride and seawater
Improving the high resistivity of concrete
Improving the wear resistance of building, like flight runway, aircraft carrier deck, high speed way
Can improve strong chemical corrosion resistance

b. Microsilica admixture is used in high intensity concrete

Performance:
Improving the compressive strength of concrete to **0MPa
Improving the modulus of elasticity of concrete to ****0MPa
Can make the flexural strength of flight runway to *4MPa with *8days
Apply for projects and precast assault with high early strength

c. Microsilica admixture used in shotcrete concrete

Performance:
Reducing the shotcrete rebound rate loss to *0%
Improving the construction efficiency, one sprayed layer thickness up to *2inch
Strength the resistivity and lower the permeability
Can retain compressive strength and flexural strength


2. Microsilica Specification
SiO2 : *2% min
LOI : 3% max
Moisture : 2.5% max
SO3 : 2% max
MgO : 5% max
Alkali content (Na2O + 0.**8K2O) : 1.5% max
Chloride content : 0.1% max
Free CaO : 1% max
Free SiO2 : 0.4% max
Density : **0 – **0 Kg/m3
**5 Microns : 5% max
Standards : as per ASTMC ***0 2)

3. Microsilica Concrete Admixture application
Microsilica apply in concrete will help to build a durable future into the infrastructure of seaport, high building, reservoir dam, Railway, driver road, bridge, metro, tunnel, airport runway, coal lane and etc