![]() ![]() ![]() In refurbishment situations brought about by the inevitable breakdown and failure of the cement based jointing mortars the Local Authorities and their professional advisors are faced with some significant problems to replace the deteriorated and broken down jointing i.e. The traditional lime and/or cement based paving jointing materials, even the modern polymer modified and pre-batched / prebagged ones, are unable to cope with the new stresses imposed by these additional and severe loading and exposure requirements. So apart from the old requirements of dealing with exposure to weathering, pedestrian and relatively light wheeled vehicle traffic, these additional demands are imposed on them. #Ncc integrity plus plusHowever, nowadays they are also exposed to the frequent use of de-icing salts in winter, plus the frequent use of mechanical street cleaning machines and other forms of high-pressure water jet cleaning. Indeed, the fact that they are generally able to do so, is a credit to the competence of our past British City Architects and Engineers and their structural integrity. ![]() Therefore, the historic stone paving and its original lime and / or cement based traditional jointing mortar is no longer trafficked by hand or horse and ox drawn carts that they were originally designed and built to accommodate, but much more heavily and frequently by modern traffic including heavy articulated vehicles of up to 40 tonnes. ![]()
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