LOAD TRANSFER EFFICIENCY IN INTERLOCKING BLOCK PAVEMENTS WITH JOINT AND BEDDING SAND

Interlocking block (IL block) pavement is constructed by a dry laying method in which sand is used for the leveling course and joints. In recent years, the most commonly used blocks have been those 60 mm or greater in thickness, whether tile or natural stone. There is a growing tendency to place such material on bedding sand layer over the granular base course, as is done with concrete flag pavement. Dry laying methods are economically superior to wet laying methods, which use material such as mortar, because 1) skilled workers are not needed, 2) products can be reused, and 3) the construction period can be reduced. Because of these numerous advantages, dry laying methods will be increasingly used for block pavements in the future.