Tender for Structural stability, soil investigation and NDT tests for S and D Building at Polymer Terminal, PPMC

Amount

Tender for Structural stability, soil investigation and NDT tests for S&D Building at Polymer Terminal, PPMC

Visual Survey:- Visual inspection for surface damages, cracks, flaking, coloration, local weaknesses, etc. and their damage classification. Simple tools and instruments like camera with flash light, magnifying glass, binoculars, and gauge for crack width measurement, chisel and hammer, etc shall be used for measuring the distresses. The visual inspection shall largely cover areas of high distress, cracks and their location, moisture, leakage, abnormal variations in structure, algae and fungus growth, efflorescence, etc. Visual inspection would be documented in the form of worksheets, photographic records, and distress over drawings etc.

Rebound Hammer Test: For determining the estimated compressive strength of concrete and uniformity of concrete in terms of surface hardness as per IS 13311 (Part-2)-1992, ASTM C 805-02, BS 6089:1981 and BS 1881: Part 202, BSEN:13791, also establishing correlation chart between rebound hammer and other confirmatory test for estimated in-situ strength of concrete if required.

Ultrasonic Pulse Velocity Test: for ascertaining the quality of concrete, soundness and density of concrete, uniformity of concrete in terms of density as per IS 13311 (Part-1)-1992, ASTM: C597-83, BS 6089: 1981 and BS 1881: Part 203 and BSEN:13791

Crack Pattern Analysis: Crack depth and crack width be will be measured by Ultrasonic Pulse Velocity system, mapping of crack pattern, classification of cracks and cause analysis of crack propagation as per ACI 318, 201, IS 456.

Excavation of Foundation:- Excavation of foundation to cross check the details foundation, pattern of foundation, size, depth from the floor level and distress measurements i.e. crack depth measurements. Crack depth and crack width be will be measured by Ultrasonic Pulse Velocity system, mapping of crack pattern, classification of cracks and cause analysis of crack propagation as per ACI 318, 201, IS 456.

Re-concreting of Excavated foundation: - After completion of Visual Inspection, Testing and taking foundation details, The foundation will be re-fill by soil and re-concreting by the same grade of materials.

Soil Standard Penetration Test:- Conduct three Standard Penetration Test (SPT) in the Bore holes marked on the drawing. Carrying out Geotechnical Investigation up to design/required depth or up to hard rock whichever is earlier to understand the bearing capacity at each structure’s location to assess the stability of structure, Proper bore log data shall be maintained at each site, and bearing capacity of each soil strata and sieve analysis would be carried out for each location.

Report and Interpretation: Preparing and submitting comprehensive report consisting of findings from visual inspection, test data, interpretation of results, and final conclusions along with sketch indicating the location of the test.

Structural Stability Analysis:- To check the vulnerability analysis, structural deficiencies and structural stability analysis of overall structure, In the structural analysis of existing structure, we will use the results of NDT of the materials/available properties of existing materials in STAAD Pro V8i or manually whichever is preferred as per IS456, IS1893 and loading as perIS875. (For grade of concrete less than M15 manual calculation will be preferred).

Repair/Retrofitting Methodology: Repairing Methodology and retrofitting scheme for structural serviceability and safety, periodic maintenance scheme, futuristic protection of structure. The recommendation for structural repair and rehabilitation to the structures shall have detailed technical specifications, materials to be used and design details, vulnerability indices and order of urgency to repair.

Bill of Quantity (BOQ) Document Preparation:- Cost analysis for strengthening of structure to make it suitable for serviceability, Bill of Quantity (BOQ), Rate analysis, Material Specification and execution methodology with complete execution drawings and sketches.

KBP CIVIL ENGINEERING SERVICES