The technical embodiment is simple in that the main steel body of the anchor is completely surrounded by a fabric sock injected with a cementitious fluid grout.
The anchor is located in an over-sized drill hole joining the materials to be anchored together. The fluid grout is injected under pressure through the middle of the anchor, until it reaches the remote end. There, it passes through a series of grout flood holes into the fabric sock. The entire assembly inflates like a balloon.
The excess milk of the grout and bonding agent passes through the fabric sock, both fixing and providing a mechanical bond to the parent material. Variation in the size and shape of the individual components enable the basic method to be easily adapted to meet a designer’s requirements.