主权项 |
1. A device for filling or creating a void within a construction medium, the device comprising:
a body, the body comprising at least one inflatable body portion, each inflatable body portion comprising of one or more inflatable cavity, at least one valve member fluidly connected to the one or more inflatable cavity to control flow of fluid into and inflate said cavity, wherein, in-use, the one or more inflatable cavity is/are shaped to substantially fill or create the void in a construction medium when in an inflated state. |