AWS was engaged to sort out an existing problem at Woolworths Doncaster which had been an issue for years. Through concrete x-raying and water testing we were able to determine that this was the site of an old escalator which was not evident with the current structure. With a solution that was designed by AWS we cut back the concrete and with a combination of combi joint, construction grout and polyurea membrane we were able to once and for all solve the problem.