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| 1 | Rebound Hammer Test |
| 2 | Conducting the rebound hammer test with required instruments/ equipment by preparing the surface ofRCC structural members such as beams, columns, slabs etc. by chipping theplastered surface/ finishing/ cladding to expose the concrete, smoothening the area using carborundum stoneall in terms of relevant IS code : 13311-1992(Part 2) oras directed. The quoted rate shall be inclusive of cost of all tool & tackles,restoration of the test area/spots after conduct oftest with matching paint, associated sundry work etc. (contractor shall visit the site for inspection before quote). |
| 3 | UPV ( Ultrasonic Pulse Velocity ) Test |
| 4 | Conducting the UPV test with required instruments/equipment by preparing thesurface of RCC structural members such as beams, columns, slabs etc. by chipping the plastered surface/ finishing/ cladding to expose the concrete, smoothening the area using carborundum stone all in terms of relevant IS code : 516 ( Part 5, Section 1 ) or as directed. The quoted rate shall be inclusive of cost of all tool & tackles, restoration of the test area/spots after conduct oftest with matching paint, associated sundry work etc.. (contractor shall visit the site for inspection before quote). |
| 5 | Carbonation Depth Test |
| 6 | Preparing the surface of RCC structural member such as beams, columns, slabs, water tank walls & slab etc. by chipping the plastered surface/ finishing/ cladding to expose the concrete, cutting etc. as per relevant code, and conducting carbonation test at various depth as directed by consultant using phenolphthalein of specified concentration to assess depth of carbonation. The ratio of Carbonation depth to cover depth is also to be measured tocheck the intensity of carbonation attack on steel bar. The quoted rate shall be inclusive of cost of all tool & tackles, restoration of the test area/spots after conduct oftest with matching paint, associated sundry work etc. (contractor shall visit the site for inspection before quote). |
| 7 | Half Cell Potential Test for corrosion mapping |
| 8 | Measuring the Half Cell Potential reading with wheel electrode at the nodes of pre-marked grid points on concrete surface in a suitable grid for determining the probability of corrosion activity of embedded steel reinforcement in concrete with specified half-cell electrode in accordance with latest IS code and after moistening concrete surface withwater. The quoted rate shall include surface preparation, moistening concrete surface for assessing the percentage risk of corrosion in the reinforcement, measuring the half-cell/surface potentials at selected locations on RCC members of the structures covered under the study to understand the extent of reinforcementcorrosionand contour mapping of corrosion, plotting thehalf-cell potential readings in graphical presentation with potential contours plotted in terms of probable risk of corrosion of steel bar in all the three categories of flats with proper documented report. The quoted rate shall be inclusive of cost of all tool & tackles, restoration of the test area/spots after conduct oftest with matching paint, associated sundry work etc.. (contractor shall visit the site for inspection before quote). |
| 9 | Cover Meter Test |
| 10 | Measuring the exact concrete cover and steel reinforcement using the alternating magnetic fields. The test result should indicate required cover thickness and estimated size of the bar if the depth of the cover is known. The test result should also indicate quality of the cover. Cover tests are to be done in accordance with the IS 1199 and IS 516 |
| 11 | Preparation of BoQ |
| 12 | Preparing the bill of quantity, tender document and CAD drawing (which shows distressed areas) for the proposed structural rehabilitation work to be undertaken |
| 13 | Periodical Visits |
| 14 | Periodical visit during execution of the proposed structural rehabilitation works (10 visits)a.Before starting the structural repair works – 2 visits b. During the structural repair works – 5 visits.c. After completion of the structural repair works – 3 visits |
| 15 | Visual Inspection |
| 16 | Visual inspection regarding the structural assessment of the buildings and the proposed structural rehabilitation to be undertaken |
| 17 | Assessment after structural rehabilitation work |
| 18 | Conditional assessment after the completion of the proposed structural rehabilitation work buy undertaking 1/3 the NDT test indicated in the original testing. |
