BT renewal coat SV museum Tirumala

Providing and applying tack coat with bitumen emulsion (Rapid setting) at the rate of 0.20 kg per sq.m using emulsion pressure distributor, on the prepared bituminous / granular surface cleaned with mechanical broom and Air compressor 250 cfm etc., as per Technical specification No.503 MORTH directed by Engineer-in-charge during execution.

Providing and laying Bituminous macadam of specified compacted thickness using VG30 grade bitumen on prepared surface with specified IRC size HBG crushed stone aggregates of (specified grading premixed with bituminous binder) grading conforming to Table 500-7 for base course, including loading of aggregates with F.E. loader and Hot mixing of stone aggregates and bitumen in Hot mix plant 40-60 TPH capacity, transporting the mixed material to the site, laid over a previously prepared surface with mechanical paver finisher to the required grade, level & alignment and rolled as per clauses 501.60 and 501.70 using Smooth wheeled roller 8-10 tonnes for initial break down rolling and Vibratory roller 8-10 tonnes for intermediate rolling and Finish rolling with 6-8 tonnes Smooth wheeled tandem roller to achieve the desired compaction as per Technical specification No.504 of MORTH including cost of cleaning with air compressor 250 cfm, all labour, materials, hire charges of machinery, loading, unloading and conveyance etc., but excluding cost of prime/tack coat as per specification vide clause No. 504 of MORTH (5th Revision) etc., complete in all respects and as directed by Engineer-in-charge during execution with the following materials.

Note: 1. Although the rollers are required only for 3 hrs as per norms of output, but the same have to be available at site for 6 hrs as the Hot mix plant and paver will take six hours for mixing and paving the output of 450 tonnes considered in this analysis. To cater for the idle period of these roller there usage rates have been multiplied by a factor of 0.65

2. Quantity of Bitumen has been taken for estimate purpose. The actual quantity will depend upon job mix formula.

3. Labour for traffic control, watch and ward and other miscellaneous duties at site including sundries have been included in administrative overheads of the contractor.

4. In case of bitumen emulsion usage the above rates vary.

Grading II (19 mm nominal size) Layer thickness - 50 to 75mm with 3.4% of Bitumen by weight of total mix.

Providing and laying Bituminous concrete of specified thickness by Hot mix plant 100-120 TPH capacity using bitumen of grade VG30, IRC size HBG crushed stone aggregates of specified grading, premixed with bituminous binder and filler (Qurry Rubbish) conforming to Table 500-17 & Table 500-9, transporting the hot mix to work site, laying with a mechanical paver finisher to the required grade, level and alignment rolling with smooth wheeled 8-10 tonne, vibratory 8-10 tonne and tandem 6-8 tonne rollers to achieve the desired compaction as per Specification vide Clause No.507 of MORTH (5th Revision) etc., complete in all respects and as directed by the Engineer-in-charge during execution.

Note : 1. Although the rollers are required only for 3 hrs as per norms of output, but the same have to be available at site for 6 hrs as the Hot mix plant and paver will take six hours for mixing and paving the output of 450 tonnes considered in this analysis. To cater for the idle period of these roller there usage rates have been multiplied by a factor of 0.65.

2. Quantity of Bitumen has been taken for analysis purpose. The actual quantity will depend upon job mix formula.

3. Labour for traffic control, watch and ward and other miscellaneous duties at site including sundries have been included in administrative overheads of the contractor.

4. The individual density for each size of aggregates to be used for construction I.e.,37.5-25 mm, 25-10 mm etc., should be found in the laboratory and accordingly the quantities should be amended for use in field. The average density of 1.5 tonne/cu.m is only a reference density in this Data Book.

5. The individual percentage of aggregates should be calculated from the total weight of dry aggregates I.e., excluding the weight of bitumen. The weight of filler will also be 2 per cent by weight of dry aggregates.

- do - Grading - II 13.2mm (Nominal Size) Layer thickness - 30 to 40mm with bitumen binder @ 5.4% minimum by weight of total mix

Providing and laying of Hot applied Thermoplastic Compound 2.5 mm thick including with Reflectorising Glass Beads @ 250gms per Sqm area, thickness of 2.5 mm is exclusive of surface applied Glass Beads as per IRC:35, including cost and conveyance of material, labour charges, hire charges of machinery, for finished item of work. The material should be of BERGER make (as per MORTH 803). The finished surface to be level, uniform and free from steaks and holes as per specification 803 MORTH. on Bituminous surface

Supply of Retro reflective tapes having width of 50 mm+/- 5 mm/0mm and length roll of Yellow/Red/White colours to site work. (3M India make or equivalent).

Supplying & Fixing of Moulded Shanks Raised Pavement Markers( Twin moulded Shamks/Studs) made of polycarbonate and ABS moulded body and reflective panels with micro prismatic lens capable of providing total internal reflection of the light entering the lens face and shall support a load of 16000 kg tested in accordance to ASTM D 4280 Type H and complying to Specifications of Category A of MORTH . The height, width and length shall not exceed 50 mm, 100 mmand 100 mm and with minimum reflective area of 13 Sqcm on each side and the slope to the base shall be 35 +,/- 5 degree. The strength of detachment of the integrated cylindrical shanks, (of diameter not less than 19 +/- 2 mm and height not less than 30+/- 2 mm) from the body is to be a minimum value of 700 Kg. Fixing shall be by drilling holes on the road for the twin shanks to go inside, without nails and using epoxy resin based adhesive as per manufacture’s recommendation and complete as directed by the Engineer during thye execution

Rupees One Crore Seventeen Lakh(s) Sixty Six Thousand One Hundred Four And Paise Eighty Five Only