The icing on the cake: how to spend well and sewer rehabilitation money well and chamber

Rehabilitation of sanitary sewers is associated with the need to repair wells or chambers as well. How to select the right repair and corrosion protection technology can be difficult, as a number of different factors have to be taken into account, such as flow rate, distance of wastewater transport, gradients and sedimentation, type of wastewater, intensity of corrosive agents, current condition of the facility, planned changes in operation, etc. One of the most important is the limitation of natural sewer ventilation in order to reduce odour nuisance in the urban environment. Such a change of use, perceived as insignificant, unfortunately has significant consequences. In combination with the wrong choice of renovation technology, it results in rapid structural degradation and a negative evaluation of the entire renovation project. The presentation will discuss the causes of possible problems negatively affecting the durability of existing and renovated manholes and sewer chambers, the advantages and limitations of available technologies, typical problems to be solved when designing such a repair. This will be complemented by a case study showing the process from inspection and condition assessment also including the costs of possible technologies.

Graduate of Warsaw University of Technology, Faculty of Civil Engineering, majoring in construction of building and engineering structures and postgraduate studies in trenchless technologies in environmental engineering at Kielce University of Technology. Designer with a licence to design in the construction and civil engineering specialisation without limitations.
For many years associated as a product manager of trenchless technologies and regional manager with the manufacturer of construction chemicals MC-Bauchemie Sp. z o.o., Co-founder of the Construction Materials Laboratory at Centrum Badań i Certyfikacji Sp. z o.o., where he is responsible for the accreditation process and development of expert opinions. Currently, he also runs the TS Tomasz Szczepański Engineering Office, where he develops technical documentation on the diagnosis and assessment of the technical condition of reinforced concrete structures and renovation projects for water and sewage facilities and hydraulic engineering structures.