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The Bridge Deck Waterproofing Systems, generally consists of 3 main layers viz. the concrete slab/ main deck, the layer of mastic and the final concrete/bitumen road. The mastic is required to bond the final road with the bridge deck. During the construction of the main deck, dusting is frequently observed, due to which the mastic layer has a weak bond with the main deck. The weak bond can lead to cracking/delimitation of the road.
It is observed that water often reaches up to the reinforcement bars of the bridge deck and erodes it. Hence it is essential to waterproof the bridge deck to prevent the erosion of the reinforcement bars, and to make the deck dust proof to enhance the bond between the mastic layer and the deck. When Flexi-Crete PCS is applied on the deck, it will not allow water to reach up to the reinforcement in the bridge deck, making the deck last longer. In addition to this it will also protect the deck from the carbonation process. In case of bridges across a portion of a sea, it is essential to waterproof the piers and the splash zones, as they are in constant contact with water. the corrosive sea water enters the concrete and causes the reinforcement to rust.
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