Public Works Department Tender

Providing and laying in-situ Mix-30 Grade unreinforced plain cement concrete pavement over a prepared sub base with 43 grade cement , coarse and fine aggregate ( natural sand/ Vertical Shaft Impactor grade finely washed crushed sand) conforming to IS 383, using fine and coarse aggregates combined gradation as per Table 600-3 of Ministry of Road Transport & Highway 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 at 0.6 meter x 0.6 meter 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.

Cutting transverse contraction joints 3 to 4 millimetre 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 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 to 4 millimetre 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)

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

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

Spreading hard murum/ soft murrum/ gravel or kankar for side width complete

Compacting the hard murum side widths including laying in layers on each side with vibratory roller including artificial watering etc. complete.

Providing and laying cement concrete pipe of Indian Standard 458:2003 Non Pressure-2 class of 450 millimetre diameter in proper line, level and slope including providing and fixing collars in cement mortar 1:2 and curing etc. complete.

Providing and fixing board displaying information, such as 'Name of work, Tender cost, Name of Contractor, Work completion and liability period etc', having rectangular shape of 1.20 meter x 0.90 meter size made out 18 gauge (1.25 millimetre) thick mild steel sheet painted with one coat of Zinc chromate stoving primer and two coats of enamel paint on front side and grey stove enamel on back side and border / messages / symbols etc. with approved colour shade paint complete, on Mild steel angle of size 35 x 35 x 3 millimetre frame with properly cross braced Mild steel angles of size 35 millimetre x 35 millimetre x 3 millimetre duly painted including Two Mild steel angle iron posts of size 65 millimetre x 65 millimetre x 6 millimetre, 3.65 meter long painted with alternate black and white bands of 25 centimetre width including all fixtures etc.and fixing the boards in 1:4:8 concrete block of size 60 centimetre x 60 centimetre x 75 centimetre including, excavation, refilling, transportation, and labour etc complete. Spec. No. As directed by Engineer in Charge