Gabion Sacks are cylindrical units which are made of doubel twisted steel woven wire mesh panel 6*8,8*10,10*12,12*15cm according to ASTM A 975 and EN10223.
Gabion Sacks are filled with stone at the site to form flexible and durable structures to be used in river training and emergency ck gabi*** are supplied with reinforcing wires to be inserted during the manufacturing process to facolitate closing during installation.the wire used in gabion sacks is he***ily zinc coated soft temper andard sizes are shown in table 1.mild steel wire all the wire used in gabion sacks and lacing wire h***e the tensile strength of 38-48kg/m2.according to BS1052/80 and ASTM A641-97.(the figures above are of the wire prior to manufacturing mesh).The tolerances on diameter of zinc coated wire in table 2/The elongation at break in min 12% and test to be carried out on a sample of minumum 30cm (12 in)long,before manufacturing the mesh.
Galvanisation strictly conform to ASTM A641-97 calss III soft temper coating.zinc adherence has to be such that when the wire is wrapped around a cylindrical mandrel h***ing 4 times the diameter of the wire,the zinc shall not flake or crack to such and extent that any flake or crack can be removed by simply rubbing with bare fingers.