Reduces permeability, concrete shrinkage, and cracking
Resists capillary moisture ingress
Remains permanently active
Self-seals hairline shrinkage cracks up to 0.5 mm in width
Resists positive and negative pressure as well as high hydrostatic pressure up to 16 bar head
Increases the durability of concrete
Krysta Leak-proof is an integral crystalline waterproofing admixture used in making concrete and mortar to become impervious and durable. It is a capillary waterproofing compound available in dry powder form and added to the concrete mix at the time of batching.
It consists of selective cementitious material, ultrafine silica aggregate and various active and proprietary reactive chemicals used as permanently active waterproofing treatment for concrete and mortar. This active additive reacts with moisture and by-products of cement hydration from concrete to form millions of needle like crystals. These crystals grow and deposit throughout the pores and voids in concrete and permanently blocking and reduces water permeability and which forms an impervious barrier to liquids thereby protecting the concrete and steel reinforcement.
It is non-toxic and contains no dangerous chemicals in its composition with a shelf life of 6 months. It prevents water seepage/leakage in any part of the building, water tank, basement, sewage & water treatment tanks, manholes, tunnels, underground vaults, foundation walls and parking decks, etc.
It protects against spalling, efflorescence, pop outs and other damages caused by weathering, bleeding of salts and internal expansion.
For regular constructions, the commonly used cements are:
It is a permanent waterproofing method & becomes integral part of the concrete. Whenever any form of water/moisture enters the concrete, be it from new cracks or pores, the crystalline technology triggers new crystals to grow and seal the pores inside the concrete & hence water molecules/ moisture & harmful chemicals like chlorides and sulphates cannot penetrate through the concrete & it also protects the concrete against carbonation & reduces chloride diffusion & it also protects reinforcing steel from corrosion, but it allows the concrete to breath.
For small mixes, add Krysta Leakproof compound to the aggregates and mix for 2-3 minutes prior to adding cement and water.
For plant mixed material add Krysta Leakproof compound to 65-75% of the pre-batches water and mixing for 2-3 minutes prior to adding the remaining batched ingredients and mix 4-6 min in accordance with standard practice.
In transit mixer, Krysta Leakproof compound is dispersed in water and add to transit mixers on site just prior to placing. The minimum mixing time is 4-6 minutes at agitating speed.
Note:Refer product brochure, Technical data sheet and Material Safety data sheet for further details
The crystalline system for concrete waterproofing is substantially different from traditional barrier products (cementitious membrane, bitumen, acrylic, siloxane, etc).