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| 1 | REBOUND HAMMER TEST :- 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, 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 will be generated on the basis of empirical formula (obtained from the calibration chart) but those results will have 25% variation as per IS 13311 Part 2 1992. |
| 2 | ULTRASONIC PULSE VELOCITY TEST :- Ascertaining the quality of concrete, uniformity of concrete in terms of soundness and density of concrete as per IS 13311 (Part-1) -1992, ASTM: C597-83, BS 6089: 1981 and BS 1881: Part 203 and BS EN: 13791; also establishing correlation chart between USPV and other confirmatory test for having estimated in- situ strength of concrete if required. |
| 3 | COVER CARBONATION TEST :- Cover carbonation test for 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 Carbonation depth. |
| 4 | RESISTIVITY TEST :- Resistivity test is required to be carried out with resistivity meter test to determination or estimation of the likelihood of corrosion due to poor quality of concrete, correlation to chloride permeability, determination of zonal requirements for cathodic protection systems, Identification of areas within a structure most susceptible to chloride penetration as per BS EN 12696:2000, RILEM TC-154, AASHTO T277 RCP, AASHTO T259, ASTM C 1202 97. |
| 5 | PH and Chloride : PH Value (to check alkanity of concrete) as per relevant B.S. 5328,ACI 201.2R-92 and ACI-318-99, IS 456:2000, BS 811. |
| 6 | CORE EXTRACTION TESTING by :- Extracting the concrete core samples following the coda provisions; and evaluating the properties (fck value, grade of concrete) in the laboratory from the core samples selected. IS456:2000; IS 516:1959, IS 1199:2002; ASTM C-42, without encountering any steel reinforcement from the RCC members covered under the study at specified locations by site in-charge with portable power driven core cutting equipment.Note : Core cutting area to be repaired by the contractor after samples are taken for testing) |
| 7 | VISUAL SURVEY :- Visual inspection for surface damages, damage classification. The visual inspection shall largely cover areas of high distress, corrosion, 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. Simple tools and instruments like camera with flash light, magnifying glass, binoculars, chisel and hammer, etc shall be used for measuring the distresses as per site requirement. |
| 8 | REPORT INTERPRETATION AND RECOMMENDATION :- Preparing and submitting comprehensive report consisting of findings from visual inspection, test data, interpretation of results, conclusions and final recommendations along with sketch indicating the location of the test in 5 sets. Recommendation part does not include the DPR or BOQ related to the project. Evaluation and presentation on recommendations/suggestions for approval measures of NESCO/ICM/EAG final submission. The HD quality site photographs and Video shall be provided to employer in a good quality of CD/DVD/USB hard disk along with softcopy but any data generated from the patented software can\"t be edited so those files can\"t be provided in the editable format.Note : complete reprot to be vetted by Govt Engineering college IIT/NIT/NITTR Chandigarh.The bidder should quote the rate inclusive of transportation, boarding, lodging and surface prep to conduct the test. |
