tender for silver college road, annual plan-perambra gp - 60/25 - -silver college road in ward 12-general civil work sl. no. item description 1 road work 2 3.1:preparation of foundation for embankment
scarifying existing granular surface to a depth of 50 mm by manual means
scarifying existing granular surface to a depth of 50 mm and disposal of scarified material with a lift upto 3 m and leads upto 1000 m as per technical specification clause 301.4. 3 3.5.3:excavation in soil using hydraulic excavator and tippers with disposal upto 1000 m
excavation for roadwork in soil with hydraulic excavator of 0.9 cum bucket capacity including cutting and loading in tippers, trimming bottom and side slopes, in accordance with requirements of lines, grades and cross-sections, and transporting to the embankment location with a lift upto 1.5 m and lead upto 1000 m as per technical specification clause 302.3 4 4.1.a.1:granular sub-base with well graded material (table 400.1)(a) by mix in place methodconstruction of granular sub-base by providing well graded material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at omc, and compacting with smooth wheel roller to achieve the desired density, complete as per technical specification clause 401.(i) for grading i material 5 75.5.2.2pb:tack coat - with packed bitumen ratesproviding and applying tack coat with bitumen emulsion (rs-1) using emulsion distributor at the rate of 0.25 to 0.30 kg per sqm on the prepared dry and hungry bituminous surface cleaned with hydraulic broom as per technical specification clause 503. 6 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. 7 75.5.6.a.1.2pb:surface dressing using bituminous (penetrations grade / modified bitumen) binder - bitumen s-65 - packed bitumen ratesproviding 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.(a) by manual meanscase - i: nominal chipping size 13.2 mmii bitumen s-65 8 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) 9 75.8.1:providing plain cement concrete for road work cc 1:2:4 (1 cement: 2 fine aggregate: 4course aggregate) laid to required slope and camber in panels (@ 3 m c/c) as requiredincluding compaction, finishing and tamping etc .complete. max. size of courseaggregate not exceeding 25mm , mixed in concrete mixer etc complete as perspecification (i) nominal mix (1:2:4) 10 75.8.1.1:providing plain/reinforced concrete(1 cement:2 fine aggregate: 4 course aggregate) forsubstructure as per drawings and technical specifications clause 802, 803, 1202 & 1203as required including compaction, finishing and tamping etc .complete. max. size ofcourse aggregate not exceeding 25mm , mixed in concrete mixer etc complete as perspecification (i) nominal mix (1:2:4)