PROVN OF PCC APROACH ROAD AND SPL REPAIRS TO BITUMINOUS

Amount

Surface excavation to required camber and gradient not exceeding 30 cms deep and averaging 15cms deep and getting out in any type of soil, complete all as specified.

Hard core of broken stone or boulders of gauge not exc. 63mm deposited, spread and levelled in layers not exc. 15cm thick, watered and rammed to a true surface, all as specified.

Machine pressed precast concrete interlocking paver block any shape and size confirming to IS 15658-2006 of 80 mm thickness, M-40 Grade with grey cement and pigment laid over and including 50mm thick sand cushion, joints of tiles filled with dry sand and compacted with mechanical vibrator and 75mm thick PCC M-10, type C-1, using 20mm graded crushed stone aggregate complete all as specified and directed. (Note:- Cost of sand and PCC sub base M-10 shall be deemed to be included in unit rate quoted by Bidder).

Plain cement concrete M-15, nominal mix, B-1 using 20mm graded mechanically crushed stone aggregate as, in lintels upto 1.5 metre clear span, steps, seismic and other similar bends, coping, bands plates for serving hold fasts, filling in mild steel frames etc. and the like including weathering slighting rounded or chamfered angles and throating complete all as specified. Note:- (i) The unit rate include for use of form work (straight or curved). (ii) Volume occupied by bond stone shall be deducted from stone masonry volume.

Removal of excavated material (soil) to a distance n.exc 50 metres and depositing where directed at a level n.exc 1.5m above the starting point complete all as specified and directed.

Repair to pot holes any depth not exc. 1 Sqm each including sweeping free from dust and mud or water, scoring sunken surfaces in roads, path etc. cutting around edges to at least 25 mm in depth, making good by filling in and including screened & graded road metal watering & well ramming, complete all as specified and directed.

Preparing water bound macadam surfaces by brushing with wire brushes for removing caked mud etc sweeping with brooms and finally the cleaned surfaces with power sweeper or compressor to remove all loose dirt etc, applying evenly a priming/ tack coat with bituminous primer using paving bitumen (VG-10) at 10 kg per 10 sq metre of road surface, laying bituminous premix semi dense asphaltic concrete 40mm consolidated thickness with 5.5% binder content by weight of total mix using 20mm crushed stone aggregate rolled and compacted to required camber and gradient with 8 to 10 tonne power roller, complete all as specified and directed.

Preparing existing black top surfaces by brushing with wire brushes for removing caked mud etc. sweeping with brooms and finally fanning the cleaned surfaces with power sweeper or compressor to remove all loose dirt etc., applying evenly a priming/ tack coat with bituminous primer using paving bitumen (VG-10) at 5 kg per 10 sq metre of road surface, laying bituminous premix semi dense asphaltic concrete 40mm consolidated thickness with 5.5% binder content (VG-30) by weight of total mix using 20mm crushed stone aggregate rolled and compacted to required camber and gradient with 8 to 10 tonne power roller, complete all as specified and directed. Note for Serial Item No 7 & 8:- Bituminous premix semi dense asphaltic concrete shall be mixed in hot mix plant, transported and premix carpet shall be laid in single layer with self propelled mechanical paver, rolled with vibrator roller. Paving bitumen shall not be issued under Sch 'B'

Marking lines, dashes, arrows etc of width 10 cms on black top/ concrete surfaces of road using hot applied thermo plastic road marking paint 2.5 mm thick (white/ gold, yellow) mixed with radium glass beads @ 250gm/ Sqm with automatic machine to provide reflectivity and night vision (approx temp being 200°C at the time of laying) including cleaning the surface of all dirt, dust and other foreign material complete all as specified. Note:- Road marking lines at the centre of road shall not be continuous, whereas the lines at outer sides of road shall be continuous i.e in one length.

GEMINI ENTERPRISES

BHARDWAJ BUILDERS