Dams

Hydro electric dams are a unique challenge to concrete waterproofing. When we consider that a dam is composed of 3 main components 1) A dam made of concrete under heavy hydrostatic pressure to create a water reservoir allowing a significant waterfall even during low water periods, 2) Feeder canals often made of concrete to carry water to the plant operation and 3) The plant itself which uses the waterfall to turn turbines that are used in the generation of electricity.

In constructing and maintaining structures subject to heavy hydrostatic pressures use of waterproofing systems can be critical. The right system such as Hydronil´s admix will effectively stop water penetration even under heavy hydrostatic pressure stopping corrosion of the reinforcing steel. Using Hydronil admix in the construction of the concrete within a dam also leads to other advantages such as reduced heat of hydration which in large volume pours is critical to reduce shrinkage cracking. Hydronil´s crack repair systems and concrete waterproofing systems also provide significant advantages in application and long term effectiveness.

Bridges & Flyovers

Bridges and Flyovers, an important part of the transportation infrastructure, and although they are not subject to high hydrostatic pressure as many water retaining concrete structures, waterproofing has proven to be important. Even minimal permeability will allow water, deicing salts and a wide variety of water borne contaminates to enter the concrete resulting in spalling, cracking, AAR/SAR reaction and corrosion of the reinforcing steel. A good example of this is in the United States where more than 200,000 bridges in warm, dry climates were not waterproofed and over time have deteriorated. It is expected that the cost for replacement or repair will be in excess of 2 billion dollars. Factoring in concretes natural tendency to   micro-crack over time, surface wear, and contaminant ingress through water, over time an untreated bridge can be a costly and inconvenient problem.

Hydronil´s unique MICT technology applied during construction or at a later time can eliminate all deterioration due to water ingress. Even the spalling created by AAR/SAR can be stopped through the use of Hydronil crystalline technology.

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