KAVASSU REPAIR MC

Kavassu Repair MC is composed on specially processed cements containing micro silica and additives. Kavassu Repair MC is supplied as a ready to use grout requiring addition of precise quantity of water at site @ 0.15 to 0.17 for pourable Consistency and 0.175 for flowable consistency. (4.25 Liters / 25kg grout). Kavassu Repair MC has excellent flow properties and will not shrink after placing and it is suitable for gap widths of between 5mm-65mm. Due to its self leveling property, it is easily flows to reach the un reachable portion of the area for placing. It gives High early strength with pre plasticized action property.

Bolt Pockets: Depending on the size of the bolt pockets, 50-100% cleaned 10mm baby aggregates by weight of grout consumption may be incorporated to economize on grout and also to keep the heat of hydration low. When the thickness exceeds 100mm 150mm, our technical department may be contacted for advice. There must be at least 15 hours gap between bolt pocket and under base plate grouting sequences.Base plates: Leak proof strong form work must be provided to withstand operational stresses while grouting and all edges must be sealed with Kavassu Repair MC troweling consistency to arrest the grout from flowing out of form work. The sealed edges must be strong enough to resist.

Repair Mortar: It is to be applied with mixing of water, with Kavassu Repair MC in prescribed ratio (0.15 to 0.17).

Surface Preparation:
1. All contaminated surfaces must be cleaned thoroughly and all contaminations fully removed by chemical or mechanical methods.
2. All bolt pockets and under bases must be free from dust, laitance and of sound substrate. If needed, substrate must be hacked to provide extra mechanical key.
3. Just before the repairing procedure is to commence, all water must be removed completely leaving the concrete surface only damp.

Mixing: Mechanical mixing using a paddle mixer or concrete mixer is only recommended. No hand mixing is permitted.
1. Place 80% of the water required in a concrete mixer (100% water in case of a paddle mixer).
2. Slowly add the required amount of Kavassu Repair MC while mixing continuously for 1 minute. Add balance quantity of water (20%) and mix for 3 to 5 min. max.

Bolt Grouting: The mixed grout must be placed immediately from one side only to avoid air pockets. Hydrostatic head of 150-250mm must be provided to enable the free flowing of grout under base plate. Grouting must be continuous until the cavity is completely filled to the desired level. All exposed areas must be restrained by covering with wooden plates or polythene sheets with sand sprinkled on top of the sheet.

Repair Mortar: Wet mix repair mortar must be placed over the affected portions with the help of spatula or any other necessary tools. Repair Mortar must be applied continuously until the cavity of honeycombing is completely filled up to the finished surface. All exposed areas must be restrained by covering with wet Hessian cloth.

Curing: 12 hours after grouting/repairing all grouted/repaired areas must be cured with wet Hessian cloth(keep wet always) or water ponding wherever possible for a minimum 7 days period. Cleaning: All equipment and tools must be rinsed with water immediately after use and then dried.

Storage Life: Kavassu Repair MC has a minimum shelf life of 6 months if stored in a dry enclosed area in unopened bags.

Handling Precautions: Kavassu Repair MC is non-hazardous. However inhalation of dust should be avoided while handling.