Archaeological Survey Of India Tender

Construction of dry lean cement concrete sub-base over a prepared sub-grade/existing tar road with coarse and fine aggregate (nature sand/VSI grade finely washed curshed sand) 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-incharge, compacting with vibratory roller, finishing, curing and including preparation of sub-grade surface if required etc. complete with fully automatic microprocessor based PLC with SCADA enable reversible Drum Type mixer concrete Batch mix plant (Pan mixer) etc. complete as directed.

Providing and laying in-situ M30 Grade unreinforced plain cement concrete pavement over a prepared sub base 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 batching and mixing plant/non tilting mixer and Weigh batcher as per approved mix design, admixtures, transporting to site, spreading, laying with approved make paver, compacted and finished in a continuous operation, 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 mm at bottom and 40 mm at top with depth of 75mm and maintaining the same throughout curing period by any other method approved by Engineer-in-charge.

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 in-charge.

Providing to contraction joints polysuphide sealant (Pouring grade) confirming to BS: 5212-1989 into sawed groove widened at top for sealant reservoir of specified size and shape as per detailed drawing including fixing Polyethylene foam back errod of required diameter (approx. 25% larger than the initial 3m One Metric ton 04mm. joint) over laid 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 sealant is applied and applying primer. (A) Contraction and longitudinal joints (15 mm. deep x 8 mm wide)

Providing and fixing in position TMT FE 500, 25mm dia dowel bars precoated with anticorrosive epoxy paint of required Dia. 60cms Long and at 50.00cm. C/C and wherever directed including handling, straightening, necessary cutting supported by TMT FE500, chairs with proper alignment by using properly designed assembly of Bulk heads lubricating half-length with bituminous paint as directed etc. complete.

Providing and fixing in position TMT FE 500, tie bars precoated with anticorrosive epoxy paint of 12mm dia. 70cms long and at 60.00 cm. 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 TMT FE500, chairs with proper alignment etc. complete.

Removal and re-fixing existing fixed heavy duty inter locking concrete RUBBER MOULD GLOSSY PAVING BLOCKS of 60 millimeter thickness on a bed of crushed sand of 25 to 30 millimeter thick including striking joints and cleaning etc. for maintaining level of existing paver blocks with newly laid cement concrete road etc. complete as directed. (using 100% crushed sand)

GST 18%