STRUCTURAL SOUNDNES NON DESTRUCTIVE TESTING OF BUILDINGS STRUCTURES LOCATED UNDER AOR OF HQ GNA UNDER GE (NW) VASCO

Amount

To carry out the detailed assessment of soundness and extent of distress of all structural members in the existing identified Qtrs/ Bldgs (G to G+4) and to prepare report of damages involved and to propose repair work. Final report be submitted to HQ CWE (Navy) Vasco duly verified by any competent Govt agency. Following tests are required to be conducted to assess the distress or any other tests required as per site condition:- 1. Rebound Hammer Test 2. Ultrasonic Pulse Velocity Test 3. Core cutting Tests 4. pH, Chloride and Sulphide tests 5. Half Cell Potential Tests 6. Carbonation Depth 7. Cover meter test 8.Visual Inspection and Photography. 9.GPR Scanning for checkingof RFT. 10. Any other test, if required. Notes for Item No.1:- (a) All these tests should be well distributed amongst all the members (beam/column and slab) in plan as well as at floor levels (b) The scope of work must include structural analysis to ascertain present day seismic safety status of the structures.

(c) Repair and rehabilitation measures must be suggested by consultant both from strength and durability point of view by taking cognizance of NDT and structural analysis. (d) Based on the interpretation of the results, the corrective actions required alongwith the detailed steps of the methodology of the repair work to be done including technical and material specification shall be suggested in written advice in triplicate with soft copies. (e) The report shall be submitted to CWE (N) Vasco for approval through GE (NW) Vasco. (f) The core cutting area shall be restored using high strength epoxy concrete without any extra cost. (g) Following shall deemed to be included in the quoted rates for the items:- (i) Mobilization and demobilization of tools / equipment and personnel required to execute the work as per specification and normal Engineering practice. (ii) Lodging and boarding for personnel at contractors own cost. (iii) Quoted rate include for all prevailing taxes. (iv) All the material, labour and equipment required for carry out the tests. (v) Vetting of structural audit report from IIT/NIT/Govt Engg College.

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