A method and system for constructing a concrete waterstop joint between first and second concrete portions. The method may include applying a continuous longitudinal cementitious and reactive waterproofing grout strip to a joint area of the first concrete portion and then forming the second concrete...http://www.google.es/patents/US8122677?utm_source=gb-gplus-sharePatente US8122677 - Method and system for constructing a concrete waterstop joint and use of a cementitious and reactive waterproofing grout strip
Method and system for constructing a concrete waterstop joint and use of a ...