NAME OF WORK:NDT OF CERTAIN BUILDING AT NAD, MO GOA, INHS JEEVANTI AND SWIMMING POOL UNDER GE GOMANTAK VASCO.
Sl. No.
Item Description
1
Visual inspection and photography performing a visual survey of the building and recording/maping on drawing to assess extent of spelled concrete, cracked concrete, honey combing, reinfocement corrosion, delaminated concrete etc, taking photographs and videos to collect evidence of damage to structure.
2
Ultrasonic pulse velocity test for RCC structure in accordance with IS:13311 Part-1 1992 by portable ultrasonic non destructive digital test equipment including chipping out plaster at strategic locations.
3
Rebound hammer test :- Rebound hammer test in accordance with IS:13311 Part-2 1992 by portable rebound hamme equipment at strategic locations.
4
Core test :- Core cutting and compression test for RCC structure in accordance with IS:516 on RCC members. 70 mm core cutting in reinforcement concrete, core filling by speialized epoxy material/micro concrete with bond coat at strategic locations.
5
Reinforcement mapping :- Reinforcement mapping test on RCC members to assess covers, spacing of bars including approximate diameter at strategic locations.
6
Chemical test for RCC structure in accordance with IS 456 2000 using ready made kits and reagents. Sample collected will be from half cell/carbonation powder. (i) Determination of PH value. (ii) Determination of water soluble sulphates. (iii) Determination of water soluble chlorides contents at strategic locations.
7
Half cell potential test for RCC structure in accordance with ASTM C876 half cell potential to assess the probability of corrosion of reinforcement at strategic locations.
8
Carbonation test for RCC structure in accordance with BS 1881-201-1986 clause 2.22 corbonation test to measure extent of carbonation from the concrete surface at strategic locations.
9
Carrying out Pull-out Test at site including drilling hole up to 200 mm in column/beam at all heights and levels, cleaning the hole with water pressure jet, inserting steel bars of max 750 mm length, filling hole by Hilti chemical grout of HIT RE-500 for different bar dia. all complete as directed by Engineer-in-Charge.( Test load shall be given at the time of testing depending upon the grouting length and grade of concrete, testing shall be done by the Manufacturer of chemicals as per their specifications and as directed by EIC )
10
To check & confirm present status of structure on basis on NDT results & visual inspection.
11
To provide recommendation for structrue repairs and technical specification. Preparingbill of quantities for the repair etc. All as specified and directed.
12
Vetting of report from government engineering college.
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