1.Non-bleeding and non-segregating 2.Low permeability 3.Lightweight 4.Increased resistance to attack from chlorides, acids

Microsilica is used in a variety of cementitious repair products.  Mortars or grouts modified with Microsilica can be tailored to perform in many different applications—overhead and vertical mortars benefit from Microsilica’s ability to increase surface adhesion.  Microsilica dramatically improves cohesiveness making it ideal for use in underwater grouts, decreases permeability in grouts used for post-tensioning applications and increases the resistance to aggressive chemicals.

ROPERTIES&SPECIFICATIONS

MODEL    GSM-85D

PROPERTIES
State	Non-amorphous Ultrafine (non-crystalline) poweder
Color	Grey to medium grey powder
Bulk density-Densified	500-700KG/M3
Bulk density-Undensified	200-350KG/M3
SPECIFICATIONS
SiO2(Silicon Dioxide)	Min.85.0%
H2O	Max.1.0%
Loss on ignition	Max.3%
Fe2O3	Max.0.5%
Al2O3	Max 0.45%
CaO	Max.0.70%
Cl	Max.0.09%
Specific surface (m2/g)	>18 & < 27
Retained on 45micron sieve	Max.6.0%
Pozzolanic Activity Index	105%@28d  85%@7d

Silica fume for in Repair Mortars & Grouts