On Curtis Island north of Brisbane, Australia, there is a modern LNG plant that turns coal seam gas into liquid natural gas (LNG). Coal seam gas is natural gas that is found in underground coal deposits.
On the premises of Australia Pacific LNG, Australia's largest producer of coal seam gas, three LNG tanks were built in which the gas is stored at a temperature of -162°C. The subcontractor STRABAG-DYWIDAG LNG Technology received the design and engineering contract for a total of four 140,000 m³ LNG tanks.
Cryogenic strand tendons in GDP plastic ducts
DSI supplied cryogenic DYWIDAG Strand Tendons with MA Anchorages as ring tendons for the horizontal post-tensioning of the two exterior reinforced concrete tanks. Type 19-0.6" DYWIDAG Strand Tendons were used in the horizontal direction and Type 15-0.6" DYWIDAG Strand Tendons were used as vertical tendons. All of the DYWIDAG Strand Tendons were inserted in GDP plastic ducts.