DRRD/SOPD(FDR)/2019-20

Amount

Granular Sub-Base with Coarse Graded Material (Table:- 400- 2) (Construction of granular sub-base by providing coarse 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 vibratory roller to achieve the desired density,complete as per cl. 401 (with an initial lead of 5 km) for grading- II Material

Water Bound Macadam (Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of screening/binding material to fillup the interstices of coarse aggregate, watering and compacting to the reqd. density (with an initial lead of 5.0 km). By Manual Means : Grading- III, Using Screening Type-B (11.2mm Agg.).

Providing and laying Interlocking Concrete Block Pavement (ICBP) conforming to IS:15658-2006 including all lead and lift complete as per technical specification and as directed. 80mm thick interlocking precast blocks having compressive strength of 40N/sq.mm.

Excavation for Structures (Earth work in excavation of foundation of structures as per drawing and technical specification, including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and backfilling with approved material. Ordinary soil : Manual means, upto 3m depth

Sand Filling in Foundation Trenches as per Drawing & Technical Specification

PCC 1:3:6 in Foundation (Plain cement concrete 1:3:6 nominal mix in foundation with crushed stone aggregate 40 mm nominal size mechanically mixed, placed in foundation and compacted by vibration including curing for 14 days).

Plain/Reinforced cement concrete, in open foundation complete as per drawing and technical specification including steel shuttering formwork. With plasticiser (Masterplast PL-1/SPL-2 or equivalent), air entraining and water reducing plasticiser (Masterplast PAE or equivalent) and accelerating plasticiser (Masterplast ACPL or equivalent) conforming to IS-9103-1999. RCC Grade M20, Using concrete mixer.

Reinforcement in Foundation: Supplying, fitting and placing TMT IS:1786 Fe500 D bar reinforcement in foundation complete as per drawing and technical specifications. TMT-IS 1786 (Fe-500 D) Primary Producer (TATA/ SAIL/Esser Steel/Jindal panther steel/Shyam steel or equivalent)

Providing weep holes in Brick masonry/Plain/Reinforced concrete abutment, wing wall/return wall with 100 mm dia AC pipe, extending through the full width of the structure with slope of 1V :20H towards drawing foce. Complete as per drawing and Technical specification.

Back filling behind abutment, wing wall and return wall complete as per drawing and Technical specification. Sandy material.

Painting Two Coats on New Concrete Surfaces : Painting two coats after filling the surface with synthetic enamel paint in all shades on new plastered concrete surfaces.

NUMAL SAIKIA