The high strength grout is the result of over 3 years of joint development, the primary purpose of which has been to deliver significant and quantifiable improvements in productivity and safety when grouting offshore structures.
MasterFlow 9800 is set to revolutionize offshore grouting, by introducing a high strength grout with unrivalled operational advantages. The material is able to be shipped and stored in silos rather than bags, facilitating quayside storage in all weathers, more flexibility in deck layout and no requirement for bag or container lifting during grouting operations and dockside resupplies.
The MasterFlow 9800 grout system uses an upgraded version of FoundOcean’s Recirculating Jet Mixer (RJM). The delivery rates when using an RJM are upwards of 20m³/hr and therefore faster grouting of the annulus can be achieved, saving valuable offshore operating days. The closed circuit between the cement silo and RJM mixer, along with the continuous mixing process, also minimizes overage, as well as reducing dust.
The material offers a number of superior properties, including excellent early strength development, even at cold temperatures, and high fatigue resistance. When combined with its operational advantages, these properties have the potential to provide significant cost optimization for the foundation installation, whilst ensuring the durability of the grouted connection.
Filed Under: News, Offshore wind