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| 1 | PHASE-I |
| 2 | VISUAL SURVEY |
| 3 | Visual inspection for surface damages, damage classification.The visual inspection shall largely cover area of high distress, corrasion, moisture, leakage, abnormal variations in structure, algae and fungus growth, efforescence, etc.Visual inspection would be documented in the form of worksheets, photographic records, and distress over drawings. |
| 4 | REBOUND HAMMER TEST |
| 5 | For determining the estimated compressive strenth of concrete and uniformity of concrete in terms of surface hardness as per IS 13311 (Part-2)-1992, ASTM C805-02, BS 6089 :1981 and BS 1881 :Part 202, BS-EN :13791, also establishing correlation chart between rebound hammer and other confirmatory test for having estimated in situ strength of concrete if required.In absence of the confirmatory test strength data wil be generated on the basis of empirical formula (obtained from the calibration chart) but those results will have 25% variation as per IS 516 Part-5/Section-4 |
| 6 | ULTRASONIC PULSE VELOCITY TEST |
| 7 | For ascertaining the quality of concrete, unifromity of concrete in terms of soundness and density of concrete as per IS 13311 (Part-I)-1992, ASTM : C597-83, BS 6089 : 1981 and BS 1881 : Part 203 and BS EN : 13791 : also establishing correclation chart between USPV and other confirmatory test for having estimated in sity strength of concrete if required |
| 8 | CORE EXTRACTION AND TESTING |
| 9 | Extracting the concrete core samples fololowing the codal provisions; and evaluating the properties (fck value, grade of concrete) in the laboratory from the core samples selected. IS 456:2000, IS 516:1959, IS 1199:2002; ASTM C-42, without encountering any steel reinforcement from the RCC members covered under the study |
| 10 | CARBONATION TEST |
| 11 | Measurement of carbonation depth by phenolphthalein spray test at selected locations (drilled powder sample or concrete core sample as per site condition) on RCC members of the structures covered under the study to see the depth of carbonation as per BS EN 14630 :2006, BS EN 13295:2004. Cover depth is also measured at the same location to know the ration of Carnonation depth to cover depth to check whether structure is in incubation period or deterioration period. |
| 12 | HALF CELL POTENTIAL TEST |
| 13 | To check the corrosion level of TMT bars |
| 14 | RCC SCANNING FOR BEAM AND SLAB |
| 15 | TO check the diameter of TMT bars for Slab, Beam and Column |
| 16 | PREPARATION AS BUILT ARCHITECTURE |
| 17 | Preparation of As Built Architecture Drawings |
| 18 | PHASE-II |
| 19 | STRUCTURAL ANALYSIS & DESIGN |
| 20 | Preparation of Structurral drawings and methodology for retrofitting works and Recommendations. Issue of Stability certificate, when structure found safe Assesses a building\"s safety and integrity.Report preparation details the findings and suggestions for improvements, Repair Scheme and Retrofitting Design. Vetting of structural design and drawings from IIT or reputed Govt. Engineering College as pert direction of Enginer-in -Charge. |
| 21 | BOQ |
| 22 | Preparation of BOQ and Estimate as per DSR and Market rate of non-schedule items with analysis. |
| 23 | Note : The financial calculation of the subject work catered in two phases i.e. Phase-I & Phase-II.Phase-I test for structural stability and Phase-II for further analysis and preparation of BOQ.If the first phase test report will found negative then Phase-II fund will be utilised otherwise Phase-I cost will be consider in this case. |
