sand-cement bases

Today, all the more significant share in the network of highways is occupied by roads with Portland cement concrete pavements. Materials stabilized with Portland cement are increasingly used under rigid pavements, therefore the problem of correct thickness of the basis is of a great importance. Soil cement and gravel-cement bases have considerable dispersion, which leads to a significant increase in the bearing capacity of concrete pavement.

Permanent increasing of loading on road surfaces requires a permanent increase their bearing capacity. In research paper presented experimental results of test specimens of concrete road surfaces on cement-sand bases. The experimental tests were conduct at laboratory of department highways and bridges at Lviv Polytechnic National University. The specimens were at scale 1:3 and included six plates by sizes 2×1 m united in construction by joint type. The full-length research object was 6 m and width 2 m. Two middle plates were testing to destruction specimens.