Assessment of the long-term effectiveness of horizontal injection waterproofing of concrete

The paper presents the results of experimental studies of the moisture content of concrete samples under the influence of NaCl (sodium chloride), conducted 14 years after the installation of horizontal injection waterproofing. The purpose is to evaluate the effectiveness of horizontal injection waterproofing of concrete structures during long-term operation. During the experiment, changes in moisture level were monitored in both the dry and wetted zones of the samples. The results show that after long-term exposure to an aggressive environment, the moisture level above the horizontal waterproofing remained stable and within the normal range of the reference samples. This confirms the effectiveness of the applied injection technology. The conducted experiment demonstrates that horizontal injection waterproofing is a reliable method for protecting concrete structures from moisture over the long term.