This system contains one ZLB-09 taper thread machine and couplers, it can be used to connect rebar of HRB335/400,φ16mm-φ40mm.The mechanical property of the joint can meet requirements of standard:ACI318-89, ACI359-86, ACI349-89, BS8110-97, DIN1045. Meanwhile, according to requirements of Chinese standard JGJ107-96 and JGJ109-96, the mechanical property of joint can reach grade II.
The taper thread system has following advantages:
1), Can be prepared on or off site;
2), No special skill is required;
3), Easy and rapid to install;
4), It can link bars, which can not be rolled, with a right and left thread coupler.