For overall dampness
If the dampness is present all over with minimum dripping leakage, the same shall be treated with crystalline product from the Dr. Fixit Range. Dr. Fixit Krystalline is an active system, which penetrates in the body of concrete and reacts with the free lime and moisture to form insoluble crystals.
Prepare mix of Dr. Fixit Krystalline by adding 2 parts of water to 5 parts of Krystalline powder. Apply the mix with stiff nylon brush over the entire wet area at the rate of 12 to 15 sqft per coat per kg of mixed material. Apply 2nd coat at the same rte after 3 to 4 hours of application of 1st coat. The final coat shall be left as it is to cure for 15 days.
Dr. Fixit Krystalline shall not be applied when the surface is dry. For filling the construction joints and other cavities, mix 5 part of Dr. Fixit Krystalline in 1 part of water and fill the paste in the joint / groove with the help of trowel.
For Dripping Leakage
All the dripping leakage points shall be grouted with foam injection system. For this Dr. Fixit PU Foam Injection 150 shall be used. Refer standard specification for grouting with foam injection.
When the surface is fairly dried after the application of Krystalline system, all the construction joints shall be grouted with cement slurry admixed with Dr. Fixit Pidicrete AM, an expansive additive at 750 mm c/c. Refer standard specification for details.
The use of PU foam injection can be restricted to areas having severe leakage only. For rest of the locations, grouting with cement slurry admixed with Pidicrete AM shall be done.
Once the entire area is treated, all the grouting nozzles shall be cut and the holes shall be filled with Polymer Modified Mortar. Remove excess Krystalline from the surface before carrying out any plaster or tiling work.
Broken concrete areas shall be repaired with Polymer Modified Mortar as per standard specifications before plastering is done. |