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Portugal, Braga, Underground Parking

Object
Underground Parking, Braga, Portugal 
Fields of application
Injection of expansion joints
Description
Heavily leaking expansion joints on underground car parking underneath external garden and the building walls. First the joint was sealed with KÖSTER KB-FIX 5 and injected with KÖSTER IN 7 to stop the running water and create a temporary barrier. After the injection only small areas where still having drops of water and the concrete beams remained wet. After the injection the applicator used unwoven oakum and soaked it with a solution of 50/50 water and KÖSTER PUR Gel, and stuffed the pieces into the expansion joint to create an elastic sealant inside the joint. Afterwards, the concrete beams and surrounding walls were mechanically cleaned and then primed with KÖSTER Polysil TG 500 followed by 3 layers of KÖSTER NB 1 Grey. In the end the last layer was hardened with KÖSTER Polysil TG 500. The applicator left the site for 3 days to allow the full curing of the materials. After 3 days the joint flanks where cleaned and prepared with KÖSTER FS Primer 2K and lastly the expansion joint (3 cm wide) was sealed with the joint sealant KÖSTER Joint Sealant FS-V Grey. 
Product applied
KÖSTER 1C Injection Pump
KÖSTER FS Primer 2C
KÖSTER IN 7
KÖSTER Joint Sealant FS-V grey
KÖSTER KB-Fix 5
KÖSTER NB 1 Grey
KÖSTER Polysil TG 500
KÖSTER PUR Cleaner
KÖSTER PUR Gel
KÖSTER Superpacker 13 mm x 115 mm CH
Contractor
J. Prudêncio Lda 
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