In June 2001, the runway of the NATO Airport Plovdiv in Bulgaria had to be repaired. The old pavement structure consisted of old rigid concrete slabs which were constructed without longitudinal hinge joints. This resulted in warping cracks occurring in both longitudinal and transverse direction.
Polyfelt technical assistance and experience was sought to provide the most economical solution. After analysis, it was determined to use a combination of Polyfelt PGM-G 50/50 and PGM-G 100/100 for taxiway and runway in order to prevent the propagation of reflective cracks from the old concrete pavement to the new asphalt concrete overlay.
Polyfelt PGM-G was supplied in rolls of 1m width. Installation was carried out buy using a manual laying machine. In total, 50,000m2 PGM-G 50/50 and 70,000m2 PGM-G 100/100 were used.