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- They say time is money; see for yourself how the PRO-RING system dramatically reduces the time and equipment required to construct or reconstruct a single manhole adjustment. Manhole repair sites can be opened and closed in a single day or in a few hours, depending on pavement type and site conditions. Closure results in significant savings and minimizes the impact on traffic when it is necessary to close traffic lanes or streets to complete the work. The use of the PRO-RING system may result in as much as 20% to 30% overall savings when considering the expected 50 Year Design Life.
4027F10 40X27X1 PRO-RING ROUND FINISH
- Made from expanded polypropylene (EPP), a high-strength, energy-absorbing plastic
- Meets or exceeds AASHTO HS-25 load requirements
- Meets or exceeds material properties per ASTM D4189-13
- Meets or exceeds the requirements of ASTM C1244 (vacuum test)
- Meets or exceeds the requirements of ASTM C969 (exfiltration test)
- Excellent UV resistance
- Not damaged or compromised when in direct contact to 285º F HMA (Hot Mix Asphalt)
- Approximately 1/20th the weight of concrete grade rings, making it very easy to handle and install
- Height1 inInside Diameter27 inMaterialPolypropyleneOutside Diameter40 inManufacturerCretexManufacturer #40-27F-100Nominal Size27 inSeriesPRO-RINGShapeRoundTypeFinish