Description

Bemsun microsilica, which it is a good admixture for cement industries, concrete plant, readymix plant



1. Micro silica 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. Micro Silica admixture in Cement performance
Microsilica is used as an admixture for cement-based concrete,mortar,refractory castable. When you mixed the proportion amount of microsilica in cement-based concrete, mortar, refractory castable, then it can provide you pefect peformance
as following:
A. Significantly increased compression, bending, impermeability, anticorrosive,anti-shock and wearable for cement-based
concrete, mortar, refractory castable.
B. With water retention, prevent segregation, bleeding, and significantly reducing the role of concrete pumping resistance
C. Significantly extend the service life of concrete. Especially used in chloride, polluted erosion,sulfate attack, high humi
dity and other harsh environments, can improve the durability of concrete double or even several times
D. Significantly reduction in jet landing castable concrete and ash, rasie a single spray layer thickness.
E. Is the necessary component of high-strength concrete and have already applied in C**0 cement-based conrete
F. With above five times the efficacy of cement, can improve the durability and lower the cost in ordinary cement concrete castable
G. Effectively prevent the occurrence of concrete alkali aggregate reaction
H. Improve the compactness of cast refractory material. When coexist with Al2O3, more easy to generate mullite phase and enhance its
high temperature strength, thermal shock resistance.

3. Micro silica 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 Cement Admixture application

Microsilica apply in cement & 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