Patent ID: 7198426

Claim:
A prefabricated road median wall, provided along a median line of a road to divide the road into two sections according to directions of vehicles traveling on the road, comprising: a plurality of unit blocks, each of said unit blocks has a first end and a second end, the first end having a coupling protrusion and the second end having a coupling groove; wherein the unit blocks are stackable and the coupling grooves of the second ends of said unit blocks are axially aligned along a first vertical length of the median wall, when the stackable unit blocks are assembled on atop another; wherein the unit blocks include a material made by crushing tires into particles having predetermined sizes and wherein said unit blocks have a predetermined height so as to be easily carried and handled and stacked sequentially with a plurality of support holes vertically formed through each of the plurality of unit blocks, so that the support holes of the unit blocks that are axially aligned communicate with each other; a plurality of locking bolts passing through an uppermost unit block to couple the stacked said unit blocks together, thus forming a median wall body; and a plurality of anchor posts, each of the anchor posts including an internal thread provided on an inner surface of an upper end of the anchor posts, the internal thread cooperating with an external thread on each of the locking bolts wherein a lower portion of the anchor posts can be embedded in the road while a remaining part of the anchor posts extend above the road through the plurality of support holes of the plurality of vertically stackable unit blocks, thus supporting the median wall body on the road wherein at least one of: a longitudinally elongated protrusion and a matching longitudinally elongated groove, are respectively provided on upper and lower contact surfaces of said unit blocks, wherein when assembled, the respective longitudinally elongated protrusions and grooves engage one another.