SLABS FOR AERODROME PAVEMENT,PAG
|Design specifications||Grade||Size, mm|
In the modern world airfield pavement slabs PAG are made of high-density concrete. They are a popular choice for assembling surfaces of permanent or temporary airfields (aircraft platform, runways and others). Airfield pavement slabs PAG are often used to build motorways and platforms for heavy vehicles as well as large terminals and other installations. Airfield pavement slabs PAG boast better durability and reliability than pavement slabs PDN. Quite often airfield pavement slabs are used to erect tower cranes. Apart from that, these days airfield pavement slabs PAG are widely used for warehouse floors and other industrial areas.
Airfield pavement slabs PAG are reliable, safe and long-lasting from the point of view of contact of the surface and the vehicle. Airfield pavement slabs are easy and fast to install. This quality is vital as all airfield pavement slabs are used under heavy traffic.
All airfield pavement slabs are coded asPAG . The latter stands for smooth airfield pavement slab. The figure after PAG describes the thickness of the slab in millimeters. The range of airfield pavement slabs comprises PAG -14 and PAG -18. They are designed for increased load.
|PAG - 18||
Peculiarities of manufacturing airfield pavement slabs PAG
All PAG slabs are made as prestressed reinforced concrete slabs six meters long and two meters wide. They are made in line with the state standard GOST 25912. With the design temperature of 60C below zero the instantaneous functional stress of airfield pavement slabs is estimated at 75 tonnes per square meter.
The slabs are labeled with letters and digits, which are separated by a hyphen: PAG -14 and PAG -18. The former stands for smooth airfield pavement slab while the latter describes the thickness of the slab in centimeters.
The label can also contain the grade of reinforcing bars — Ат-V. Standardized handling strength of the concrete is equal to standardized transfer strength. The concrete grade boasts 70% compression resistance. Freeze-thaw durability must be at least F200.
All airfield pavement slabs PAG can serve a long time thanks to reinforced concrete. Prestressed bars reduce deflection, prevent cracks and largely reduce steel consumption as well as the dead weight of concrete elements.
Large temperature variations and ground motion can reduce the usability of many roads fast. Airfield pavement slabs can provide lasting quality for heavy traffic.
The state standard GOST 13015.4 must be observed during the transportation of PAG -14 and PAG -18 slabs. The slabs are supposed to be transported only in the horizontal position, a stack of ten slabs at most, with at least 50mm thick wooden planks in between. Only one slab can be lifted if the butt joint is used to lift the slab. Three slabs can be lifted at most if special rigging equipment is used without touching the butt joint.