PROVN/ ADDN/ ALTN TO DRAINS/ SEPTIC TANK/ SOAKAGE WELL AT CERTAIN LOCATIONS AT AF STN AWANTIPUR

Amount

Excavation in trenches n.exc 1.5 m wide and n exc 1.5 depth for foundations etc and getting out in any type of soil, complete all as specified and directed.

Plain Cement Concrete Type C2 1:3:6 ( using 40 mm graded granite stone aggregte) in surface channels and drains mass concrete, complete all as specified and directed.

M&L Brick work with sub class B bricks, straight or curved on plan exc 6m mean radius built in CM 1:6 Complete all as Specified and directed.

Plain cement concrete type B1 1:2:4 ( using 20 mm graded aggregate) copings, bed plates and the like including weathering, slightly rounded or chamfered angles and throating, complete all as specified and directed.

M/L for 15 mm thick rendering on brick masonray surfaces in cm 1:4 including finished even and smooth without using extra cement, complete all as specified and directed.

Returing, filling in including spreading, levelling , watering and well ramming in layers n exc 25 cm thick with soils, complete all as specified and directed.

Removing of excavated material exc 50 m but n exc 250m and depositing where directed at level n exc 1.5 m above the starting point, complete all as specified and directed.

Extra for forming fair finished drain or channel 30 cm inner girth in cement concrete using extra cement including forms molds, mitered/stopped ends etc., complete all as specified and directed.

Precast cement concrete (1: 1/2:3) M20 type A-1 (using 20 mm graded stone aggregate ) as in cover slabs set in cement morter (1:4), complete all as specified and directed.

High strength deformed TMT bars 10mm dia of grade Fe 500/500D steel bars and over cut to length bent to shape required including crancking, bending spiraly for hooping for columns, hooking ends and binding with mild steel wire (annealed) not less than 0.9mm dia, or securing with clips, complete all as specified and directed.

RCC septic tank designed to carry sewage and sullage water, excavation in any type of soil PCC 1:4:8 below foundation, RCC M-30 design Mix in wall, Base slab, baffle walls and roof slab including beams etc with vent shaft, manhole opening with cover connection etc, complete with effective depth of 1.5 meter and overall depth of 3 meter for 100 users conventinal type, complete all as specified and directed. REF TD DRAWING :- CEPZ/ STD-199/ 20 (SHEET 1/2 & 2/2)” Note:- “ M-30 design wiil be used for all RCC Work whatever it is shown on Drawings”.

Soakage well excavation in any type of soil, foundation in PCC 1:3:6 walls of honey combed masonary with top ring of M-25 concrete including intercepting chamber and screen chamber made of brick masonary in CM, RCC cover slab in M25/SFRC cover, interconnecting pipe of RCC/DWC complete filled with brick bats of size. Size of soakage well 1.8m dia x 3.0 m effective depth, complete all as specified and directed. REF TD DRAWING :- CE/AF/STD-15/2000 (SHEET 1/2)

Sand filling under floorings/pavement spread and levelled in layers n.exc 15cm thick complete including watering and consolidation, complete all as specified and directed.

Machine pressed precast conctete interlocking paver block any shape and size confirming to IS 15658-2006 of 80 mm thickness M-40 Grade ® with Grey cement and pigment, complete all as specified and directed.

S&F PVC (SWR) pipes single socketed,110mm bore, in any length with rubber ring joints fixed to wall and floor, complete all as specified and directed.

Supply and fixing for double wall corrugated HDPE non pressure pipe suitable for sewage/ waste etc of size DN/ID 200mm, dim 195mm and wall thick e4 min-1.5mm and e5 min-1.00mm all as per IS16098 (part-2), including jointing rings and necessary machinery to joint the sewers in-situ in trenches, including preparation of internal surface, complete all as specified and directed. Note:- Excavation and earth work including return filling shall be measured and paid separately.

Cutting into existing manholes for connecting new drains 200mm dia, making good to pipes and rendering, cutting out existing benching for and forming channel (1/2 round or 3/4 section) in plain cement concrete 1:2:4, type B-1 using 20mm graded crushed stone aggregate, finishing surfaces and reforming benching as required, complete all as specified and directed.

M&L for RCC pipes of 300 mm bore dia, class NP3, laid and jointed complete with collars, with and including testing and demolition of existing pipes, complete all as specified and directed.

M/S BASHIR AHMAD AND SONS (BID ID -3253198)

M/S ABBAS M. ENTERPRISES (BID ID -3254646)

M/S SUHEEL CONSTRUCTIONS (BID ID -3255742)

BHAT CONTRACTORS AND GENERAL ORDER SUPPLIERS (BID ID -3261086)

M/s Gh Qadir and Sons (BID ID -3255559)

nazir Ahmad Dar and sons (BID ID -3254624)