Fast, Permanent Repairs In Stage I,

Fast, Permanent Repairs In Stage I, the contractor Quieros Galvão experienced problems with the elevated aqueducts resulting in thermal/dry shrinkage cracks every 2 meters – more than 2,000 linear meters of leaking cracks. Quieros Galvão engineers recalled a presentation given by Xypex distributor, MC Bauchemie, several months earlier and contacted them for assistance in how best to address the leaks. Due to the extent of the shrinkage cracking, resin injection was discounted as a repair solution. Other technologies were considered but, as they required significant and time-consuming surface preparation, would not fulfill the requirement to keep the project on schedule. Additionally, as the continuous supply of water was essential to the region, future shutdowns for maintenance would not be possible and so a highly durable solution was required.