To bring the walkways into use again required a flexible floor screed strong enough to resist deterioration, as well as coping with the bridge opening and closing and heavy foot traffic.

• 让它重新使用需要一个有弹性的地面沙浆层，足够坚固可以抵御退化，并且同时可以承受大桥的关闭和繁忙的行人。