ADDN/ALTN TO TECH FLT DISPERSAL AND DRAINAGE AT AF STN TEZPUR CONTENTS

Excavation in trenches exc 1.5mtr deep and n.exc 1.5m wide and getting out soft/loose soil, complete all as specified and as directed.

Demolition of existing cement concrete of any description and in any position not otherwise specifically provided for, by following manners (a) cutting of PCC with mechanical method to seprate the demolition portion of hardstading then demolition of cutting portion by manual or mechanical method and disposed rubbish outside the MOD land, complete all as specified and as directed .

Material and labour for hardcore of gauge not exceeding 63 mm of broken granite stone, deposited, spread and levelled in layers not exceeding 15 cm thick, watered and rammed to a true surface, complete all as specified and as directed.

Material and labour for mass concrete in M20 (1:1.5:3) (Nominal mix) using 40mm graded stone aggregate as in floor, path complete all as specified and as directed

Material and labour for 200mm reinforced concrete pipes, class NP3 laid in trenches and jointed with collars, complete all as specified and as directed.

Material and labour for Concrete bed to 200 mm bore drain pipes including packing under and haunching against the sides of pipes after they are laid and tested, in PCC 1:3:6, type C-2, using 40 mm graded crushed stone aggregates, complete all as specified and as directed.

Material and labour for cement concrete in surface channel dain in PCC 1:3:6 type C-2 (using 40mm graded stone aggregate), complete all as specified and as directed.

Material and labour for Brickwork with subclass `A' bricks, straight or curved on plan exc 6m mean radius, built in cement mortar 1:4 as in drain, manholes, foundation, wall etc, complete all as specified and as directed.

Material and labour for extra for forming fair finished drain or channel 45cm inner girth in cement concrete, using extra cement, including forms, moulds, mitred/stopped end etc, complete all as specified and as directed.

Material and labour for redering 15mm thick in CM (1:4) on fair faces of brick work or concrete surface to be finished even and smooth without using extra cement, complete all as specified and as directed.