Prefabricated concrete slab device suitable for vehicles up to 3.5 tonnes whose weight is less than 50 kg per slab

摘要

The invention relates to a particular device for prefabricated concrete slabs suitable for light vehicles up to 3.5 tonnes, characterized by: on the one hand, a slab (a) of format 50 centimeters by 50 centimeters by 8 centimeters thick, whose formulation is: sand 0/4 to 50%, gravel 4/6 to 15%, sand 0/2 to 8.7%, polypropylene fiber to 0.2%, steel fiber S30 / 50 to 4 %, binders of the calcium carbonate type at 4.6% and Cem II according to standard EN 197-1 at 17.5%; on the other hand, a stud (b) placed at the four corners of the slab, according to the principle that a stud can receive 4 corners of slabs, and that the diameter (c) of the stud is at least 0.75 times the width of the slab. Figure for the abstract: Fig. 1