Improvement of drainage faciility in Guwahati University campus.

Earth work in embankment by manual means by truck carriage in ordinary/normal soil excluding sandy and rocky soil free from roots & vegetation and filling in uniform layers not exceeding 25 cm thick including ploughing or roughening or benching the seats, removing all debris, breaking clods up to 4cm cube, dressing as per design section, etc. complete as directed.(10% deduction will be made from the section measured quantities of the completed and compacted on account of shrinkage ) For initial lead up to 1 Km and for all lifts

For every Km extra lead beyond initial lead of 1 Km & up to 10 Km. (Distance = 9 km)

For every Km extra lead beyond initial lead of 10 Km & up to 20 Km. (Distance = 10 km)

Labour for ramming with cast iron rammer to proper compaction including watering if necessary, etc. complete as directed. Ordinary soil

Collection of sand gravel from approved quarry containing 60% sand and 40% gravel free from disintegrated and flaky pieces of vegetation and other deleterious matters, adherent coating etc. including stacking in suitable stacks at quarry site etc. complete as directed.

Labour charge for laying of soling stone, brick bats, broken stone metal, sand gravel etc. on approach road including ramming dressing the seat and local carriage of materials up to a distance of 60 m complete as directed.

Turfing with grass sods of largest possible rectangles of 12 cm. minimum thickness placed closely includingdressing earth pegging with Jati bamboo split, watering till the grass grows for a lead up to 90 m and all lifts, etc. complete as directed.

Construction of whole bamboo single palisading with matured Jati bamboo stacks 7.5cm to 100 mm dia.,15 cm clear apart 1.20m to 1.80m above ground and 1.00m to 1.20m below ground with Jati bamboo inclined struts fixed 1.2m to 1.5m apart tied with three rows of horizontal half Jati bamboo kamies with cane/wire of 16G to 18 G etc. complete as directed. (Using Bhaluka Bamboo at the rate of 8.67 nos./Rm &Jati Bamboo at the rate of 2.40 nos./Rm)

Earth work in excavation of drainage channel to the proper grade and slopes as required including disposing the excavated debris/soil to a safe distance of minimum 50 m distance, etc. complete as directed. For lead upto 50 m and all lifts. Wet & Sticky Soil

Collection of blasted boulder of size 23cm. to 30cm in average and minimum weight 30Kg having i. Specific gravity not less than 2.65, ii. Aggregate Chrushing< 30% (Wearing) &< 45% (Non - wearing) iii. Impact Value(%) max <30% (Wearing) &< 45% (Non - wearing) and iv. Abrasion Value(%) <30% (Wearing) &< 50% (Non - wearing) (Materials conforming to IS 2386 part III & IV 1963) and free from dust, dirt and other foreign materials including local carriage and stacking in regular measurable stacks of approximate 1 (One) m. height at site, etc. complete as directed. (10% under sized (minimum 10 cm) boulder is allowable for packing/filling the gaps occurred during execution of works). (15% deduction will be made from the stack measured quantities on account of void)