8455 REPAIRS TO PLASTERINGS, MASONRY WORKS AND CLEANING OFSEWAGE LINES, SEPTIC TANKS, MANHOLES and ITS CONNECTING WORKS ETC AT TECHNICAL AREA OF NSTL UNDER AGE (I) RnD NSTL, VISAKHAPATNAM

Amount

Cutting down the plants/ trees of girth n.exc. 15cm from roof tops/ sides of external walls of building, chajja, wall junctions & at junctions of rain water/ waste water pipes including taking out the roots entered in to wall/ slab surfaces; making good surfaces with PCC 1:2:4 type B0 or cement mortar (1:2) including repairing the GI/ CI/ PVC pipe joints which were affected due to cutting/ taking out process after applying suitable herbicide including making good the disturbed surfaces to match the adjoining surfaces complete with necessary scaffolding/ staging/ Jhula etc, with all necessary safety precautions up to 4 storey height complete all as directed and as specified.

Framed work such as grills, gratings, etc.. with ends of bars shouldered and/or riveted, or forged into spikes; framed guard bars; barred iron doors; ladders; framed balusters; walk ways; railings; framework of water tanks and similar work conforming to Fe.290.Gde-E-165

Taking down cement or cement lime plaster on brick or stone walls etc incl raking out joints, hacking for key scrubbing down with water etc.

M&L rendering 5mm thick with WPC over 10 mm thick on concrete surfaces or fair face of brick work or PCC block masonry in CM 1:4 finishing the surfaces fair and even

M&L for preparation of new plastered surfaces of walls and applying two coats of weather proof exterior emulsion over a coat of exterior primer complete all as specified. [Make of Exterior emulsion: 'Weather Shield Powerflexx' of M/s ICI Dulux/ 'Apex Ultima' of M/s Asian Paints/ 'WeatherCoat Long Life' of M/s Berger Paints]

M&L for preparation of new surfaces of walls over alkali resitant primer & applying two coats of cement base paint.

Providing and applying plaster of paris putty of 2 mm thickness over plastered surface to prepare the surface even and smooth.

M&L for preparing old plastered surfaces of walls by brooming down and applying one coat of cement base paint all as specified.

Excavating in trenches n. exc. 1.5m wide and n. exc. 1.5m in depth for foundation etc. or for shafts, wells, cesspits, manholes, pier holes etc. n. exc. 10sq.m. on plan and n. exc. 1.5m in depth and getting out in hard/ dense soil all as specified.

Excavating in trenches n. exc. 1.5m wide and depth exc. 1.5m but n.exc. 3.00m for foundation etc. or for shafts, wells, cesspits, manholes, pier holes etc. n. exc. 10sq.m. on plan and getting out in hard/ dense soil all as specified.

Removing excavated materials to a distance not exc. 50m and depositing where directed at a level n.exc 1.50m above the starting point all as specified.

Returning, filling in including spreading leveling watering and well ramming in layers not exc. 25cm in any type of soil all as specified.

Demolition of PCC of any description in any position

M&L for plain cement concrete 1:4:8 type D2 (using 40mm graded stone aggregate) as in foundation filling and mass concrete all as specified and as directed.

M&L for plain cement concrete 1:2:4 type B1 (using 20mm graded stone aggregate) as in channel benching concrete etc. all as specified and as directed.

Demolition of brick work or stone masonry built in cement mortar including all quoins, arches, pillars, etc complete all as directed.

M&L for brick work with fly ash bricks straight or curved on plan exc. 6m mean radius using modular bricks built in cement mortar (1:6) all as specified.

Demolition of reinforced cement concrete (reinforcement cut as required to facilitate demolition) of any description and in any position not otherwise specifically provided for all as specified.

M&L Providing precast cement concrete 1:2:4 type B1 (using 20mm graded stone aggregate) in landings, cover slabs (for man holes etc.) chullah hoods, chajjas, water troughs, mangers, shelves and similar articles with plain faces set in cement mortar 1:4 complete all as specified and as directed. [Note: Reinforcement shall be measured and paid separately under relevant item of this BOQ]

S&F high strength deformed TMT steel bars 10mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia all as specified and as directed.

S&F high strength deformed TMT steel bars 6 to 8mm dia, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia all as specified and as directed.

M&L PCC type C1, 1:3:6 (20mm graded aggregate) including formwork as in coping.

M&L for extra for forming fair finished drain or channel of any inner girth in cement concrete using extra cement including forms moulds mitred/stopped end etc.

M&L for concrete bed to drain pipes of 150mm bore dia including packing under, and haunching against the sides of pipes after they are laid and tested; in cement concrete 1:3:6, type C2 all as specified.

S&F UPVC Soil, Waste pipes Type 'B' conforming to IS 13592-1992, 150mm internal dia single socketed in any length with rubber ring joints laid in trenches/ floors complete including taking up existing unserviceable drain pipes all as specified and as directed

Supply and laying in trenches DWC HDPE flexible pipe of 195mm internal dia Class SN-4 with socket & spigot joints conforming to IS 16098 (Part-2) along with connected accessories like couplers, bends, end caps etc. for sewage application all as specified and as directed.

Supply and lay Reinforced concrete pipes 450mm bore, class NP2, laid and jointed complete with collars including taking up/ down existing damaged pipes.

Removing carefully cover slab of manholes of any size, depth n.exc. 1.0m and removing the scum/ sludge including any organic or inorganic matter, washing down with water for smooth functioning of sewage line, removing the sludge obtained from cleaning to a distance not exceeding 50 mtr and buried in ground to a depth not less than 1 metre, and setting the man hole covers in position after inspection etc. all as directed

All as per Item No. 28 here in before but manhole of depth exc. 1.0m but n.exc. 2.0m

Taking out carefully precast RCC cover slabs of septic tank/ filter bed of any capacity, taking out scum/ sludge including liquid using mobile tanker equipped with sludge pump etc. and depositing off at places earmarked by GVMC authorities outside MD land, cleaning the tank with water, bleaching powder etc. clearing the bushes, vegetation etc. up to a distance of 2 mtr from outer edge all around the septic tank, including placing in position and setting the cover slabs with cement sand mortar (1:6) after inspection etc. complete all as directed.

Clearing out blockage from WC up to manhole with cleaning rod including removing all materials from P trap of WC and disposing off complete all as directed.

Clearing out blockage from Floor trap/ Nahani trap up to manhole with cleaning rod including removing all materials from the trap and disposing off complete including removing and refixing the grating all as directed.

Cleaning of blockage existing sewage lines of 100mm to 150mm dia by rodding from one manhole to next manhole and washing with fresh water including removing all sludge from the sewage lines and disposed off properly outside the MD land complete all as directed.

Cleaning of blockage existing sewage lines of 200mm to 300mm dia by rodding from one manhole to next manhole and washing with fresh water including removing all sludge from the sewage lines and disposed off properly outside the MD land complete all as directed.

ROHITH INFRA

K R VARMA

RAVI VARMA JAMPANA

G Srinivas Rao