| 摘要 |
An arrangement in concrete blocks, which are intended to be positioned end- to- end to form barriers for e.g. roadways and parking lots. the concrete blocks(1) have an elongate shape with an essentially triangular cross-sectional configuration with rounded side walls, and are interconnected by means of T- shaped metal pieces(4, 5), the latter being secured in the end faces of the blocks (1) during the casting thereof and formed with cross-bars (4', 5') the interconnection of the blocks (1) being effected in that two such cross-bars at adjoining end faces of two concrete blocks. Positioned end- to –end are enclosed by a tubular member (8), whereby the blocks are locked together. the blocks may be provided with a deivces(31) widening their upper part and increasing the ability of the block to guide vehicles softly back to the roadway. |
