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CONCRETE PIPES AND MANHOLESwww.cpi-worldwide.com CPI %u2013 Concrete Plant International %u2013 5 | 2025 137this time with 20% less cement. Here, too, no irregularities were observed. The usual grinding work on the spigot end also produced the usual pattern. Finally, the pipe, with 100% reCO2ver aggregate was subjected to the standard crown compression test by the quality assurance authority. Both the requirements of DIN V 1201 and the increased quality requirements of the Federal Association of Concrete Sewer Systems (FBS) were met. The test production demonstrates that the use of 100% RC aggregates processed using the reCO2ver-process is feasible. Further studies, particularly regarding durability, are needed for regular industrial application.SummaryOur built infrastructure, such as the pipe system made of concrete and reinforced-concrete pipes, is a source of raw materials. The pilot project with the Federal Association of Concrete Sewer Systems (FBS) and the R%u00f6ser Group has shown that 100% recycling of concrete rubble is feasible from a production and concrete technology perspective. An important finding was that the quality of raw material processing is crucial for the sustainability of the new concrete. The reCO2ver process enabled 100% reuse of old concrete: a) The cleaned sand and gravel were of almost primary quality and could be used without problems. b) The resulting cement powder could be used as a cement substitute.Concrete technology insights, such as the precise determination of material properties and volumetric analysis of the concrete, help with optimization.Sika supports the concrete circular economy with the reCO2ver process. The provision of the patented process in combination with specialized application technology leads to the safe implementation of this innovative technology. nFURTHER INFORMATIONSika Deutschland CH AG & Co KGKornwestheimer Str. 103-10770439 Stuttgart, GermanyT +49 711 8009 0 info@de.sika.com, www.sika.dewww.sika.com/en/knowledge-hub/reco2ver-concrete-recycling.htmlBundesfachverband Betonkanalsysteme e.V.www.fbs-beton.de/recyclingR%u00f6ser Vertriebs GmbHwww.roeser-gmbh.de/de/produkte/k-reco2verPIPES AND MANHOLESCUSTOM-MADEwww.collespa.com - info@collespa.com+39 0437 552 121Roberto BadellaSales DirectorColle SpAViale Belluno-Lentiai, 5I-32026 BORGO VALBELLUNA(BL)In 30 years, I have come to understand that theonly truly essential component of our work islistening. If Colle SpA's strength lies in itstailor-made service, it is because we havelearned through experience to thoroughlyunderstand our customers' needs, leading toresults that often exceed their expectations.DESIGN, MANUFACTURING, INSTALLATIONTECHNOLOGIES AND EQUIPEMENTS FOR GREAT PRECAST PRODUCTS IN CONCRETE