LOW VISCOSITY HIGH STRENGTH INJECTABLE GROUT
Hind ERS 21 is a two component solvent free low viscous fast curing epoxy resin system comprising of Component A (Resin) and Component B (Hardener). It is designed especially for pressure injection into concrete for carrying structural repairs and base plate grouting. Hind ERS 21 is supplied in pre-measured quantities, and conforms to BS-6319.
Hind ERS 21 is ready to use for pressure injection
into concrete for structural repairs and filling up gaps in base plate
in bridges, factory shed etc. The system possess the properties like low
viscosity, non-shrink, free flowing and pourable, hence it find various
usages in sealing of crack through injection operation, in expansion
joint, floor joint, pavement joint and base plate grouting, etc.
Hind ERS 21 is very useful in concrete such as
- It can be injected into extremely fine cracks and small cavities.
- It has high compressive strength, tensile and flexural strength.
- Excellent bonding and adhesion.
- For filling up gaps of small height between Concrete & Base Plate.
- No shrinkage during curing.
- Like all epoxy resin system it has high chemical resistance.
- Cured material is not brittle and remains slightly flexible.
- Reduce thermal expansion co efficient thus improves thermal conductivity.
Surface Preparation: Before application surface
preparation is important, surface should be cleaned, dry, free from
loose particles, oil, grease or other foreign materials, injection
nipples are fixed in a square grid maximum 500 to 800 mm c/c depending
on the cracks and nature of concrete, if required for effective
treatment, the grid may be reduced. Before the injection starts all
cracks and crevices are to be sealed with Hind ERS 21 mortar and surface sealing is to be done for other porous areas.
Mix 1 part by wt of Component B (Hardener) with 2 parts by wt of Component A (Resin) i.e. Mixing Ratio = Component A: Component B = 2:1 (by wt). Mix
at least 5 minutes to uniform color without any steak using a drill and
paddle mixed (speed 200 RPM) so as to avoid any entrapped air. Comp B
is to be poured in Comp A and stirred gently.
Injection: The grout mixture should be pumped by a
positive displacement plunger type pump. Inject at slow and even
pressure through the injecting nipples till refusal or when the grout
oozes out from nipple immediately adjacent to or above the one being
Clean all tools & equipment immediately after use with, Xylene, Toluene or suitable solvent.
|Mixed ratio||(Resin) Comp A: (Hardener) Comp B = 2:1 (by wt)|
|Density||1070 to 1090 kg/ m3|
|Pot life||60 minutes at 27 °C|
|Compressive strength at 27 °C||35N/ mm2 (min) in 24 hrs.
80 N/ mm2 (min) in 7 days.|
|Tensile strength at 27 °C||15 – 20 N/ mm² in 7 days.|
|Flexural strength 27 °C||30 – 40 N/ mm² in 7 days.|
|Shrinkage||Practically no shrinkage.|
|Chemical resistance||Chemically resists by wide range of chemicals and oils.|
3, 6, 12 Kg Kit or as required.
12 months if it is in unopened condition. Should be stored in a cool dry place away from direct sunlight.
Hind ERS 21 is non-toxic but ingestion is to be
avoided. Any splashes to the skin must be washed with water. If contact
with eyes occurs, wash well immediately with water and seek medical