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ETA-21_0054_mit_aBG_incl._Cover.pdf
supplied by Macalloy Ltd. The load measuring system employed, shall have an appropriate calibration certificate, not older than 6 months. Macalloy jacks are calibrated against calibrated and certified load cells prior to being despatched from Macalloy premises. The load cells are calibrated against a [...] the bar is taken up. A correlation between force and extension can be made by making use of the Modulus of Elasticity value given on the bar test certificate. Note that when stressing short tendons, the errors in measuring extension are larger than those measured for long tendons. The stressing operation [...] grout inlet. Air is then vented via an air vent or similar duct or grout saddle with grout vent. The grout inlet should generally be positioned at the lower end of the tendon and the air vent at the higher end. If the tendon is horizontal, it is acceptable to grout as shown. For horizontal tendons with couplers[...]