TIGOCRETE IG 225 : NON-SHRINK PRESSURE GROUT (NSPG)

Areas of Application:

• For injection grouting in–RCC slabs, Sunken slabs
• RCC walls of water tanks, swimming pools
• Basements for waterproofing purpose
• Concrete Duct grouting
• Rock and soil anchoring
• Pre-placed aggregates and tunnel lining
• Crack ­filling in structural enforcement
• For structural strengthening in repairs

Method of Application: CEMENTITIOUS INJECTION GROUTING.

Surface Preparation: The areas that requires injection grouting should be prepared thoroughly and locations of grout must be ­ finalized. Drill hole of required size into the structure and ­ x grouting nozzle. Allow nozzle to set for 24 hours.

Mixing: Take the appropriate amount of water and then add cement and mix for 3-5 minutes with a drill mixer (for small jobs) or a paddle type mortar mixer (for large jobs) at 150 – 200 rpm. Add required quantity of TIGOCRETE IG 225 and mix for another 3-5 minutes until a consistent mix is achieved.

Application: Carry out injection grouting either by gravity or with grouting pump using the mixed material.

Cementitious Bed Grouting ~ Surface Preparation:

The areas that require grouting should be prepared thoroughly, Remove dirt, dust, loos particles & coating. Make the surface SSD condition for at least 24 hrs. Remove excess water.

Mixing: Mix 1 bag [50 Kg] OPC – 53 grade cement with 100 Kg of clean & dry ­ ne sand [0 – 2mm] in

a pan / concrete mixer. Add TIGOCRETE IG 225 & mix for 2 minutes. Add water, 20 – 25 Ltrs [as per

w/p ratio – 0.2 to 0.25], under mixing & mix for 3-5 minutes to get homogeneous ‑ owing mortar.

 Pour the mixed grout over prepared SSD surface, and allow it to cure for 24 hrs before

curing with wet hessian cloth.

Shrinkage – Produces a shrinkage compensating cement slurry.

Permeability – Delivers reduced water-cement ratio of cementitious grouts & the mix has reduced permeability to water.

Flow ability – Provides good ‑ flowable grout mix, can be easily injected by gravity or with the help of pressurized injection pumps.

Durability – Increases the durability of repaired structures.

Corrosion – Chloride and iron free, hence no chance of corrosion.

Setting time – Does not affect the setting time of cement.

Strength – Does not affect the strength of cement, in fact increases the same

• Number of holes and diameter to be decided at the site
• Grouting pressure should be adjusted at the site depending on the nature of the problem and the thickness of the structural member
• Properly seal the nozzles, with suitable adhesive/sealant / polymer modi­fied mortar
• Do not dilute the injection grout with more water, it will reduce the strength.

Colour: Brownish grey powder

Bulk density: 0.70 – 0.80 gm/cc

Shrinkage: NIL.

Dosage: 250 gms per 50 kg cement.

Packing: 13.5 kg.

Coverage: 50 kg cement and 250 Gms of TIGOCRETE IG 225 will give 26-34 ltrs. yield, when used with a water: cement ratio of 0.30 to 0.45.

Shelf Life & Storage: Shelf life is 12 months from the date of manufacturing in unopened condition. Store in a cool & dry place.

Health & Safety Precautions: Use rubber hand gloves & safety goggles, while using TIGOCRETE IG 225. In case of contact with skin, wash with plenty of water. Keep out of reach of children.