Improvement To Dahivali Bendshil Chiknyachiwadi Devlyachiwadi Road, VR 98, Taluka Ambernath, District Thane.

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. MORTH 301

Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing to proper grade and camber, applying and brooming requisite type of screening/ binding Materials to fill up the interstices of coarse aggregate, watering and compacting with Vibratory roller. to the required density. By Mechanical Means - Grading I (Using Screening Type A (13.2) mm Aggregate)

Construction of dry lean cement concrete Sub- base over a prepared sub-grade with coarse and fine aggregate conforming to IS: 383, the size of coarse aggregate not exceeding 25 mm, , cement content not to be less than 150 kg/ cum, optimum moisture content to be determined during trial length construction, concrete strength not to be less than 10 Mpa at 7 days, mixed in a batching plant/ Weigh batch mixer, transported to site with all leads and lifts, laid with a paver with electronic sensor /by suitable means as approved by Engineer-in-charge , compacting with vibratory roller, finishing, curing and including preparation of sub-grade surface if required etc. complete.

Providing and laying 125 micron Low Density Polyethylene (LDPE) sheet confirming to IS 3395 : 1997 below concrete pavement including all materials and labour complete.

Providing and laying in-situ M30 Grade unreinforced plain cement concrete pavement with max 20%fly Ash (Fly-ashup to20%by weight of Cement)over a prepared subbase with 43 grade cement ,coarse and fine aggregate (natural sand/VSI grade finely washed crushed sand)conforming to IS 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 vataincement Mortar1:[email protected] m centre to centre ,admeasuring 80mm at bottom and 40mm at top with depth of 75mm and maintaining the same throughout curing period by any other method approved by Engineer-in-charge.with fully automaticmicroprocess or based PLC with SCADA enable dreversible Drum Type mixer/concrete Batch mixplant(Pan mixer) etc. complete.

Cutting transverse contraction joints 3 to 4 mm wide and depth 60mm. .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 mm. wide at top having depth of 15 mm. as directed by Engineer incharg

Providing to contraction joints polysuphide sealent (Pouring grade) confirming to BS : 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.

Supplying hard murum/ kankar at the road site, including conveying and stacking complete.

Spreading hard murum for side width etc. complete

Providing and laying concrete pipes of I.S.NP. class of 300mm diameter in proper line, level and slope including necessary collars, excavation, laying, fixing with collars in cement mortar 1:1 and refilling the trench complete.Bd.V.41, Page No. 573