tender for annual plan-ptdu- 437/25-nariveli valavukayam road maintenance ward 17-general civil work - retarring and culvert 2 75.5.5.a.1pb:modified penetration macadam 50 mm thick using bitumen s-65 - packed bitumen ratesconstruction of penetration macadam over prepared base by providing a layer of compacted crushed coarse aggregate using chips spreader with alternate applications of bituminous binder and key aggregates and rolling with a three wheel 80-100 kn static roller to achieve the desired degree of compaction as per technical specification clause 506. 3 od430362/2024-2025:tack coat - with packed bitumen rates <br> providing and applying tack coat with bitumen emulsion (rs-1) using emulsion distributor at the rate of 0.20 to 0.30 kg per sqm on the prepared bituminous surface cleaned with hydraulic broom as per technical specification clause 503. 4 75.5.6.b.1.2pb:surface dressing using bituminous (penetrations grade / modified bitumen) binder - bitumen s-65 - packed bitumen rates
providing and laying surface dressing as wearing course consisting of a layer of bituminous binder laid on the prepared surface, followed by a cover of crushed stone aggregates of specified size and rolling with three wheel 80-100 kn static roller including cleaning the road surface as per technical specification clause 507.
(b) by mechanical means
case i: nominal chipping size 13.2 mm
(ii) bitumen (s-65) 5 75.5.11.1.a.2pb:mix seal surfacing - manual means - type a - bitumen s-65 - packed bitumen ratesproviding, laying and rolling of close-graded premix surfacing material of 20 mm thickness composed of 11.2 mm to 0.9 mm (type-a) or 13.2 mm to 0.9 mm (type-b) aggregates using penetration grade bitumen to required line, grade and level to serve as wearing course on a previously prepared base, including mixing in a suitable plant, laying and rolling with a three wheel 8-10 kn static roller and finishing to required level and grades as per technical specification clause 509by manual meanstype a(ii) bitumen (s-65) 6 2.5.2.b:dismantling of structures dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including t&p and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000 m as per technical specification clause 202. (ii) by mechanical means (b) reinforced cement concrete 7 11.1.1.1:excavation for structuresearthwork in excavation for structures as per drawing and technical specifications clause 305.1 including setting out, construction of shoring and bracing, removal of stumps and other deleterious material and disposal upto a lead of 50 m, dressing of sides and bottom and backfilling in trenches with excavated suitable material.i. ordinary soil(i) upto 3 m depth 8 11.4.1.1:providing concrete for plain/reinforced concrete in open foundations complete as per drawings and technical specifications clause 802, 803, 1202 & 1203i. p.c.c grade m 10(i) nominal mix 1:3:6 9 12.5.1.1:plain/reinforced cement concrete in substructure complete as per drawings and technical specification clauses 802, 804, 805, 806, 807, 1202 ans 1204for height upto 5 mi. p.c.c grade m 15(i) nominal mix (1:2.5:5) 10 13.1.2:providing and laying reinforced cement concrete in superstructure as per drawing and technical specifications clauses 800, 1205.4 and 1205.5r.c.c m 25 11 13.1.1.1:providing and laying reinforced cement concrete in superstructure as per drawing and technical specifications clauses 800, 1205.4 and 1205.5i. r.c.c grade m 20(i) for nominal mix 1:2:4 12 11.8:supplying, fitting and placingtmt bar reinforcement in foundation complete as per drawings and technical specifications clauses 1000 and 1202 13 13.3:supplying, fitting and placing tmt bar reinforcement in superstructure complete as per drawing and technical specifications clauses 1002,1010 and 1202 14 od463424/2024-2025:surface dressing of the ground in all kinds of soil including removing vegetation and in -equalities not exceeding 15cm 15 75.8.1.1.a:providing plain cement concrete for wearing coat cc 1:2:4 (1 cement: 2 fine aggregate:4 course aggregate) laid to required slope as required including compaction, finishingand tamping etc .complete. max. size of course aggregate not exceeding 25mm , mixedin concrete mixer etc complete as per specification (i) nominal mix (1:2:4)