1 of 18  Construction of Giresun Wastewater Treatment Plant  Tender Dossier Volume 3 Employer’s Requirements  Section 06: Concrete and Steel Works  tensile properties and the wire fabric also for weld shear strength. No steel reinforcement shall be used  in the Works until the testing results have been approved by the Engineer. If ordered by the Engineer,  test procedures shall be repeated at the Contractor's expense for any new supply of reinforcement dur- ing the course of the Works.  All reinforcement shall be clean and free from pit corrosion, loose rust, mill scale, paint, oil, grease,  adhering earth, or any other material that may impair the bond between the concrete and the rein- forcement or that which may cause corrosion of the reinforcement or may be detrimental to the quality  of the concrete.  Storage of reinforcement shall be on racks or supports clear of the ground. Different types and sizes of  reinforcement shall be kept separate.  6.2.2 Bending and cutting schedules  The Contractor shall prepare for his own use bar bending schedules and bar lists, cutting schedules and  sheet lists for wire fabrics for each individual structure from the information given in the approved  working Drawings and in the herewith Employer’s Requirements, and shall be responsible for ensur- ing that correct information is given when ordering reinforcement. Copies of these schedules, lists and  orders shall be submitted to the Engineer for his approval. Steel bar supports shall be included in the  bending schedules.  The approval of the bar bending and cutting schedules, lists and orders shall not relieve the Contractor  of his responsibility to execute the reinforcement fixing in accordance with the Drawings and/or ac- cording to the requirements specified in TS 500 and the code for buildings to be built in disaster areas  2007.  Reinforcement shall be protected at all times from damage, and when placed in the structure shall be  free from dirt, loose mill scale, rust scale, paint, oil or other foreign substance. All reinforcing steel  shall be carefully cleaned of all set or partially set concrete, shutter oil or paint which may have been  deposited during the construction of adjacent works.  Steel reinforcement shall be cut from straight bars free from kinks and bends or other damage and  shall be bent cold by experienced competent workmen. Bars of diameter greater than 12 mm shall be  bent in a bending machine designed for the purpose and approved by the Engineer. Any reinforcing  bar that has already been bent shall not be re-bent at the place of the previous bend.  Wire fabric reinforcement shall be cut straight from the sheets. The use of off-cuts in the Works will  not be permitted.  Lapping bars and wire fabrics shall be permitted when necessary and approved by the Engineer. No  welding of reinforcement shall be carried out.  Unless otherwise specified, lap length of bars shall be at least fifty (50) times the diameter of the larg- er bar, and laps shall be positioned in a staggered pattern.  Laps on adjacent section of wire fabrics shall generally be carried out as follows:  6_Vol3_d4.3_Section 6 Concrete and steel works_en_GIR_rev6.docx  6.2.6 Lapping of bars and wire fabrics  6.2.4 Bending of bars  6.2.5 Cutting of wire fabrics  6.2.3 Protection and cleaning 