| 摘要 |
The prefabricated blocks consist of a right-angled prismatic slab with a trapezoid vertical section, and an upper face forming a ramp (3). The slab has a base (1) which is embedded in the road, the blocks being assembled side-by-side across the road. The thickness (b) of the base is greater than the maximum thickness (r) of the ramp. The blocks are manufactured from high-strength concrete with aggregates, and are press-moulded. USE/ADVANTAGE - For making road humps and raised footpaths. Press-moulded to give constant size, and easy to instal and handle because of smaller size. |
