Bond breaker for joint sealant, Civil Engineering

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Joint sealant must be designed and constructed to allow free extension and compression during the opening and closure of joints. In case joint sealants are attached to joint filler so that movement is prohibited they can barely perform their intended functions to seal joints against water and debris entry. Polyethylene tape is generally used as bond breaker tape.

To facilitate free movement, it can be achieved by adding bond breaker tape in-between the joint filler andjoint sealant. Primers can be applied to the sides of joints to provide a good bond between them.

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Fig. Bond breaker tape for concrete joints.


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