{"id":65987,"date":"2023-03-08T09:02:56","date_gmt":"2023-03-08T09:02:56","guid":{"rendered":"https:\/\/bkp-berolina.de\/sanierung-von-sonderprofil-ast-und-bkp-ueberzeugen-durch-akribie-und-flexibilitaet\/"},"modified":"2023-03-08T09:23:24","modified_gmt":"2023-03-08T09:23:24","slug":"rehabilitation-of-discharge-pipe-with-a-special-profile-ast-and-bkp-impress-with-meticulousness-and-flexibility","status":"publish","type":"post","link":"https:\/\/bkp-berolina.de\/en\/rehabilitation-of-discharge-pipe-with-a-special-profile-ast-and-bkp-impress-with-meticulousness-and-flexibility\/","title":{"rendered":"Rehabilitation of discharge pipe with a special profile: AST and BKP impress with meticulousness and flexibility"},"content":{"rendered":"

[vc_row][vc_column][vc_column_text]Last year, AST Grupo rehabilitated a total of 2,347 meters of a sewage pipe with Berolina-HF-Liners in Asturias, Spain. So far so normal. The fact that the box profiles of the discharge pipe sewers, which primarily measure 1,400 x 1,000 mm, have different dry weather gutters, a number of step joints and crossing lines in the crown area made it an ambitious undertaking. But thanks to tireless the commitment and meticulous preparation, AST mastered the renovation in two project phases with the support of BKP Berolina GmbH & Co. KG and JBP Composites S.L brilliantly.<\/strong><\/p>\n

AST Grupo had to plan one of the largest liner rehabilitation measures ever carried out in northern Spain precisely. Thorough cleaning work enabled inspection of the sewers reaches to determine which liner design would be most appropriate for the project and what the requirements for the liners to be installed should be. When selecting the product, AST Grupo opted for BKP’s Berolina-HF-Liner due to its high mechanical properties, special extension behaviour and low cross-section loss. The flexible design of the liner enabled rehabilitation to be carried out in line with the special profile and the fulfillment of all the requirements that the project entailed.<\/p>\n

The teams from all three companies involved in the rehabilitation then met to review the inspection data and determine the most appropriate liner for each pipe. After the consultation, custom-made liners were produced in the BKP factory in Velten near Berlin and delivered directly to the construction site in Asturias.<\/p>\n

After thorough preparation of the job site, the installation of the liners could start. A 6-tonne winch was used to pull the hoses into the host pipes to be renovated on site. The liner ends were sealed with end-cans and the curing process after the UV light sources had been introduced could begin. Particular attention was paid to the special profile when setting up the liner. They were carefully and incrementally calibrated with compressed air to ensure that the fiberglass layers could slide past each other during the inflation process. The Berolina-HF-Liners are ideally adapted to the special profile of the pipes to be renovated, leading to a result in this case that delivered excellent performance in the pipe, was more than just its visual appearance.[\/vc_column_text][vc_empty_space]