particular specifications (road works) - CIDCO Maharashtra Ltd.

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CIDCO OF MAHARASHTRA LTD C.A.No.01/CIDCO/SE(KHR)/EE(KHR-I)/2010–11 Pg. No. 412 14.5 HANDLING AND TRANSPORTATION: i) The coated bars shall be securely bound together using a buffer material (padding) and it is desirable that the bent bars shall supplied with some canny cover. ii) When loading and unloading of bundles of coated bars, it shall be preferable lift them with a strong back, spreader bar multiple supports etc. To avoid external bending nylon slings at 2 or 3 points shall be used. iii) The bundles of bars shall not be dropped. iv) If damage had occurred to the coating during transportation it must be repaired before rusting occurs. 14.6 SPECIFICATIONS FOR PATCH REPAIRING OF COATING DAMAGES a) Coating repair is required when peeling off and other damages occur during fabrication or handling. b) The patch repair shall be done at site using the same coating material as per manufacturer’s recommendations. c) It is essential to ensure a minimum coating thickness of 150 microns at all the repaired portions before embedding in concrete. 14.7 SPECIFICATION FOR CUTTING, BENDING AND WELDING OF COATED REBARS AT FIELD. i) It is desirable that the coated rods shall be bent gradually. ii) In the field, the cut and welded portions of the coated rebars shall be repaired by the same formulations.
CIDCO OF MAHARASHTRA LTD C.A.No.01/CIDCO/SE(KHR)/EE(KHR-I)/2010–11 Pg. No. 413 iii) The cut ends of the coated rebars shall be repaired by the same formulation. iv) It is advisable that the binding wires shall also be coated by the same formulation. 14.8 SAFETY PRECAUTIONS AND GUIDELINES To be followed during the preparation and application of the cement polymer composite coating (A know how released by CECRI). (i) A solvent resistant hand gloves must be used during the handling of chemicals. (ii) Face masks should be worn during the preparation and application. (iii) Other safety measures should be adopted for the persons handling solvents, chemicals, finished products and during application. (iv) Closed sand blasting unit shall be used to avoid dust spreading. (v) Aprons should be made preferably from plastics and rubber must be used. (vi) The containers containing chemicals and finished products shall be properly sealed. (vii) Adequate safety measures should be adopted for field operations. (viii) In general, all the safety measures should be followed as per Industrial safety regulations.
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