BRAILLE BLOCK WITH BUILT-IN ELECTRONIC TAG

摘要

PROBLEM TO BE SOLVED: To provide a Braille block with favorably built-in electronic tags. SOLUTION: A colored concrete layer 11 having protruding parts on its surface is formed, a rear part concrete layer 13 is formed just below the colored concrete layer 11, and the electronic tags 14 sealing between the concrete layers 11 and 13 by resin and forming many holes 15 are incorporated therebetween to form Braille block with built-in electronic tag.