Alcance
This document provides a guideline for the selection of a proper grout material to repair water leakage through cracks and other deformities in concrete structures. The factors relevant to the quality control of maintenance and repair of water-leakage cracks are as the following;a) conditions of water-leakage cracks;b) performance requirements for repair materials;c) different types of repair materials (grouts);d) procedures followed to select the appropriate repair materials;e) execution of different types of repair methods;f) performance assessments of applied materials and methods;g) data collection.This document does not include any details on the repair of dry cracks and the causes of cracks. The details on dry crack repair are covered in ISO 16311-4.A flow chart for maintenance of water-leakage cracks is shown in Figure 1.