TN-18 Work No.01

Excavation for roadway in earth, soil of all sorts, sand, gravel or soft murum including dressing section to the required grade, camber and side slopes and conveying the excavated materials with all lifts upto a lead of 50 metre and spreading for embankment or stacking as directed.

Excavation for roadway in hard murum and boulder including dressing section to the required grade, camber and side slopes and conveying the excavated materials with all lifts upto a lead of 50m.and spreading for embankment or stacking as directed.

Providing earth work in embankment with approved materials obtained from departmental land upto lead of 50 meter including all lifts, laying in layers of 20 centimeter to 30 centimeter thickness breaking clods, dressing to the required lines, curves, grades & section, watering and compaction with vibratory roller to achieve not less than 97 % of standard proctor density etc. complete. (Material obtained from departmental Land)

Construction of granular sub-base by providing close graded Material, mixing in a mechanical mix plant at OMC, carriage of mixed Material to work site, spreading in uniform layers with motor grader/ Paver on prepared surface and compacting with vibratory roller to achieve the desired density, complete as per clause 401 -- Plant Mix Method and Grading - I Material

Providing and laying in-situ M40 Grade unreinforced plain cement concrete pavement with max 20% fly Ash ( Fly-ash upto 20% by weight of Cement) over a prepared sub base with 43 grade cement , coarse and fine aggregate ( natural sand/ VSI grade finely washed crushed sand) conforming to Indian Standards 383, using fine and coarse aggregates combined gradation as per Table 600-3 of MORTH Specification 2013, mixed in a Tilting type Concrete Mixer as per approved mix design, admixtures, spreading, laying compacting and finished in a continuous operation without paver machine, finishing to lines and grades as directed by Engineer-in-charge and curing by curing compound /by providing cement vata in cement Mortar 1:8 @0.6m X 0.6m centre to centre, admeasuring 80 millimetre at bottom and 40 millimetre at top with depth of 75 millimetre and maintaining the same throughout curing period by any other method approved by Engineer-in-charge.

Wet Mix Macadam -- Providing, laying, spreading and compacting graded stone aggregate to wet mix macadam specification including premixing the Material with water at OMC in mechanical mix plant carriage of mixed Material by tipper to site, laying in uniform layers with paver in sub- base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density. Laying By Grader/Paver.

Providing and fixing in position Thermo Mechanical Treatment Ferrous material 500, 32 millimetre diametre dowel bars precoated with anticorrosive epoxy paint of required Dia. 60 centimeters Long and at 30.00 centimeters C/C and wherever directed including handling, straightening, necessary cutting supported by Thermo Mechanical Treatment Ferrous materia 500, chairs with proper alignment by using properly designed assembly of Bulkheads lubricating half length with bituminous paint as directed etc. complete.

Providing and fixing in position Thermo Mechanical Treatment Ferrous 500, tie bars precoated with anticorrosive epoxy paint of 12 millimetre diametre. 70 centimeters long and at 30.00 centimeters C/C and wherever directed including handling, straightening wrapping with paper of approved quality for half length, necessary cutting, handling, straightening , supported by assembly of Thermo Mechanical Treatment Ferrous 500, chairs with proper alignment etc. complete.

Cutting transverse contraction joints 3 to 4 millimeter wide and depth 60 millimetre in concrete slab using concrete cutting machine with diamond studded saw within 48 hours of casting of bay / slab etc. complete including subsequent widening of the groove 8 to 10 millimetre wide at top having depth of 15 millimetre as directed by Engineer incharge.

Providing to contraction joints polysuphide sealent (Pouring grade) confirming to British Standards : 5212 - 1989 into sawed groove widened at top for sealent reservoir of specified size and shape as per detailed drawing including fixing Polyethylene foam backer rod of required diameter (appraox. 25% larger than the initial 3 mm.to 4 mm. joint) overlaid with bond breaking tape as per detailed drawing. Item includes cleaning the joints with water jet / air compressor and allowing joint to become thoroughly dry before sealent is applied and applying primer. (A) Contraction and longitudinal joints (15 millimetre. deep x 8 millimetre wide)