PERFOMANCE BASED MAINTENANCE CONTRACT ON ALL ROADS- UNDER SUB DIVISION DEOSAR DISTT- SINGRAULI (M.P.) (TOTAL LENGTH 42.22 KM.)

2.2 Clearing and Grubbing Road Land Clearing and grubbing road land including uprooting rankvegetation, grass, bushes, shrubs, saplings and trees having girth up to 300 mm, removal of stumps of trees cut earlier and disposal ofunserviceable materials and stacking of serviceable material up to a lead of 1000 metres including removal and disposal of top organicsoil not exceeding 150 mm in thickness.

10.1 Repair to pot holes and removal of loose material, trimming of sides, cleaning of surface by providing tack coat with bitumen emulsion, 20 mm thick pre-mix carpet using catonic bitumen emulsion @ 21.5 kg per 10 sqm and seal coat type B with bitumen emulsion @ 10kg per 10 sqm as per technical specification and compacting with three wheeled 80-100 kN Static Roller

10.19 Crack stitching with inclined tie bar (cross Stitching) used for cracks in reasonably good condition in order to arrest movement of slab and slabs pieces by making primer verticals holes,, alternative inclined hole, cleaning the hole through oil free compressor and filled with epoxy resin in enough quality that will coat HYSD bar confirming IS 1786 of 12 mm dia in every hole also groone shall be made along with line cracks display spalling and filled with a low viscocity resin or fire epoxy mortar following the method specified IRC SP 83:2008.

10.13 Repair of joint Grooves with Epoxy Mortar Repair of spalled joint grooves of contraction joints, construction joint, longitudinal joints and expansion joints in concrete pavements using epoxy mortar or epoxy concrete.

10.14 Repair of old Joints Sealant Removal of existing sealant and re-sealing of contraction, construction longitudinal or expansion joints in concrete pavement with fresh sealant material

10.12 Repair to cement concrete road by providing laying & Fixing mortar-based patch master & Liquid rapid harding chemical including cleaning of concrete surface and applying of special bounding liquid

4.2 Crusher Run Macadam Sub Base/Base Course Providing crushed stone aggregate, depositing on a prepared surface by hauling vehicles, spreading and mixing with a motor grader, watering and compacting with a vibratory roller as per clause 410 to form a layer of sub-base/Base in accordance to Table No. 400-14, 400-15 and as per clause of section 407 of specifications.

4.3 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 in accordance to Table No. 400-12, 400-13 and as per clause of section 406 of specifications.

5.1 Prime coat Providing and applying primer coat with bitumen emulsion on prepared surface of granular Base including cleaning of road surface and spraying primer at the rate of 0.75 kg/sqm using mechanical means as per clause 502 of specifications.

5.3 Providing and applying tack coat with catonic bitumen emulsion (RS-1) using emulsion pressure distributor on the prepared bituminous/granular surface cleaned with mechanical broom and as per relevant clauses of section-503 of specifications. (i) @ 0.25 kg per sqm (normal bituminous surfaces)