ASSECHMUR

Bossong injected anchors with sock and Presstec grout with TBOS bars. Stainless steel threaded bars. Couplers, turnbuckers, nuts, standard end and architectural end plates.

Bossong injected anchors with sock and Presstec grout with GBOS bars. Stainless steel bars fully threated. Stainless steel smooth bars. Couplers, turnbuckers, nuts, standard end and architectural end plates.

Over the last recent years a greater and greater attention to the existing building heritage and to the activities aimed to the preservation of both buildings with high architectural value and those belonging to the category of traditional buildings has been developed. Among the restoring interventions of existing buildings there are often strengthening works, in which one provides the embedment of metal anchors into masonry or wood stitching of cracks, bonding between reinforcement metal anchors and the existing structures, tierod or reinforcement ring put to contain the action of pushing elements such as arches and vaults, connection between floor slabs and outside masonry walls, embedding of anchorages inside the walls in order to increase their resistance and the global behaviour of structures also for seismic upgrading.

Bossong anchors are embedded into boreholes made in the masonry to be strengthened through drilling machines with diamond bits, that work only with rotation movement in order to avoid vibration and percussion effects on the masonry. Depending on the type of masonry and on the particular setting of the site drilling works can be done with water or air cooling or with techniques that help to avoid the spread of cooling liquids. The choice of the drilling technique is decisive when works are done in unique and precious settings where painting, ancient plasters and stuccoes are present and have to be saved and preserved. The borehole diameter is designed according to anchors size it is usually about three times the steel bar diameter; the length of the anchor is another parameter to be evaluated for the right choice of the borehole diameter.