| 摘要 |
The present invention relates to joint filler and a filling device for a permeable block for a sidewalk and a road which comprise a means mixed with joint sand filled in gaps between permeable blocks at a prescribed ratio to expand a volume when absorbing water in an early stage to allow the permeable blocks to push each other by the volume expansion means and stabilize the gaps between the permeable blocks in the early stage to prevent a gap on any one side from spreading or narrowing to uniformly arrange the gaps between the permeable blocks and allow stable construction. According to the present invention, the joint filler for a permeable block prevents permeable blocks laid on a sidewalk in a transverse and a longitudinal direction from moving and correctly positions the permeable blocks by filling gaps between the permeable blocks with joint sand. A volume expansion means which expands a volume thereof when water infiltrates thereinto, maintains a shape thereof once expanded, and does not absorb water again is mixed with the joint sand. The gaps between the permeable blocks are filled with the joint sand in which the volume expansion means is mixed to allow the volume expansion means to absorb water to expand the volume to prevent the permeable blocks from moving in all direction and fix the permeable blocks by the volume expansion means expanded in all directions of the permeable blocks. |
