SPECIAL REPAIRS TO ROSE TANK PRE SETTLING TANK AERATION CHANNELS RAPID SAND FILTER AND OH TANK AT FILTER HOUSE AT DSSC WELLINGTON

Amount

Dismantling floor, hearth or wall tiling including cement mortar bedding (but not backing), removing serviceable tiles to store and rubbish outside MD lalnd.

Demolition of concrete in ground floors and pavings n exc 15 cm thickness (below or above ground level) and removing debris out side MD land as dirceted.

Demolition of Concrete of any description and in any position complete removing debris out MD land and directed.as in etc specifically and as directed

Demolition of brickwork or stone/boulder masonry, built in lime mortar including all quoins, arches, pillars, etc, but excluding ashlar facings, dressed stonework and precast concrete articles

Dismantling wrought iron or mild steel work of any description not otherwise provided for all as specified and as directed

Taking down cement or cement lime plaster of any description on brick or stone walls concrete surface etc including racking out joints, hacking for key, scrubbing down with water etc, complete including removing rubbish outside MD land all as specified and as directed.

M&L for V groove of 10mm wide and 30mm deep or up to the extend of joint/crack present at site over joint /crack line using electrically operated angle grinder with diamond concrete saw blade and cleaning it by air blower as directed by the Engr In Charge.The groove shall be cut on the concrete surface along the joint /crack over RCC structure to be executed by the authorised applicator of the manufacture complete all as specified and directed.

M&L for examining the weak concrete portion of RCC member of any description by tapping with light hammer and marking of the loose concrete area of structural element in straight line geometrical forms ,grooving the edges same with grinder up to 5-10mm depth and drilling holes in honey comb portions for installing PVC nozzles of 12mm dia complete all as specifed as per manufactur inctruction.

M&L for sealing of exposed ' V' groove of 10mm wide and 30mm deep with sikaguard 694 F(I) or quick fix or equiavalent solvent -free ,moisture tolerant ,thixotropic ,two part structural adhesive including level the surafce with cement mortar(1:4) complete

M&L for drilling holes of 12mm dia up to 100mm deep holes in structural members at the interval of 300 mm in staggered manner or along the joints & crack line in reinforced concrete (RCC) structural element including cleaning of the holes by air blower and inserting 12mm dia NRV (Non Returnable Valve) nozzle compatible with epoxy injector and machined external end to receive the out let of grouting gun including fix inside the hole by applying thixotrpic epoxy adhesive Sikadur 31 IN Re arm Instaplug /quick fix to ensure complete sealing and allow curing system for minimum 8 Hrs before grouting including nozzle projections including making necessary levelling/making good the epoxy surface through necessary grinding,levelling etc all as directed.

M&L for injection grouting of conctruction joints with non shrink cement slurry admixed with epoxy grouting Cebex 100 of M/S Fosroc Chemical/Sika Grout -214 IN @300 mm C/C including opening of cracks to a groove of size 12mm x12mm ,nozzle at 300mm C/C including of opening of cracks to be grooved of size 10mm x10mm and fixing of nozless with fast setting plugging compound Renderoc plug,cutting the extra lenth of nozzle after grouting all in complete as per manufactires instructions including the necessary scafolding as required and as directed by the Engr In Charge.

M & L for two coats of Sika Topseal 107 or Aqua Arm top Guard inside of the wall & floor of the tank.(two componenets shall be ready to use polymer modified cementatious coating).First coat shall be applied horizondally and second coat shall be applied vertically(Thickeness of the coating shall be not less than 1.5mm) complete all as specified and directed. Not: Water ponding test shall be carried out after the stage of application of two coats)

Material and labour for applying two coats of Aqua Arm Tank Coat ,a water based epoxy coating for portable water on all over the concrete surface from inside and leave the treated surface for 6-8 hrs for dry and apply 2nd coat and and allow the surface to cure for 24 hrs.The thickness of the two coat(After application) shall be not less than 400 microns complete all as specified as manufacture instruction .(The applcator shalll be from authorised Manufacture only)

M &L for coloured Glazed ceramic tiles in vertical surfaces 300x 450x 7mm/300x600x7mm thick set and jointed in neat cement slurry and pointed in colour cement to match set in 10mm thick CM 1:3 complete all as specified and as directed. Make : Rac Ceramics/Somay/Khazaria

M & L for Non - skid Ceramic tiles 7 to 8 mm thick (square/rectangular) area of each tile exceeding 0.06 sqm but not exceeding 0.11 sqm, in floors etc. set and jointed in neat cement slurry and pointed in white or coloured cement to match over 15mm thickscreed bed in CM 1:6 complete all as specified and as directed.Make : Rac Ceramics/Somay/Khazaria

M & L for precast solid block masonry exceeding 10 cms in width, (with plain or interlocking joints as directed), 1:3:6 type C0 (using 12.5mm graded aggregate) and set in cement mortar 1:6 all as specified and as directed.

M & L for for precast solid block masonry 10 cms in width, (with plain or interlocking joints as directed), 1:3:6 type C1 (using 20mm graded aggregate) and set in cement mortar 1:4 all as specified and as directed.

M & L for Rendering in CM (1:6) 15 mm thick on fair faces of brick/ concrete surfaces finished even and smooth without using extra cement all as specified and as directed.

M & L for Rendering in CM (1:4) 10 mm thick on fair faces of brick/ concrete surfaces finished even and smooth without using extra cement all as specified and as directed.

M & L for PCC 1:3:6 type C1 (using 20mm graded aggregate) in seismic and other similar bands, plinth courses, string courses, lacing courses, parapets and railings upto 60 cm in height, copings, kneelers, apex stones, bed plates, water troughs and the like including weathering, slightly rounded or chamfered angles and throating, as directed.

M & L for M&L for MS 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 complete all as directed.

M&L for complete removal of external finish on old plasterd surface of RCC members like dome/Columns etc of OH or semi UG water storage tank surafce including necessary scafolding and apply ,one coat of exterior wall primer and two coats of Exterior Emulsion anti fungal weather proof paint APEX ULTIMA of Asian Paint or WEATHER COAT SMOOTH of Berger complete all as per manufacturer instruction as directed height up to 15 M.

M&L Preparing newly plastered surfaces of external walls and applying exterior wall putty of 3mm thick for smoothness, one coat of exterior wall primer and two coats of Exterior Emulsion anti fungal weather proof paint APEX ULTIMA OF Asian Paint or WEATHER COAT SMOOTH of Berger complete all as per manufacturer instruction as directed.

M&L for complete removal of external finish on old plastered surface of RCC members like dome/Columns etc of OH or semi UG water storage tank surafce including necessary scafolding and apply ,two coat of exterior wall primer and two coats of Exterior Emulsion anti fungal weather proof paint APEX ULTIMA OF Asian Paint or WEATHER COAT SMOOTH of Berger complete all as per manufacturer instruction as directed height exceeding 15 M but not exeeding 30M .

Material and labour charges for chipping the spalled and old concrete removing loosely adhering particles using wire brushes and make the structure for the application of micro concrete complete complying with standard specification including lead and lift for an average thickness of 50 mm including disposal of debris to out side MD land. (Note : 1. The cleaning of the bar shall be done such that no rust shall be present after removal of rust from the bar. 2. Removal of concrete which is defective shall be right round the bar, which is going behind the thickness shall be included)

M&L for exposing the existing reinforcement bars fully in the repair area and remove all loose scales and corrosion deposits using Rust Remover and apply the surface exposed reinforcement with a reinforcement epoxy Re arm coat -ZP .

Material and labour for apply one coat of Re-arm super bond epoxy resin on the old surface of concrete in order to obtain the bonding between old and new concrete

M&L for cement concrete mix 1:2:4 type B 0 (using 12.5mm graded stone aggregate) as in Slab supported in walls, beams and columns in floors, roofs, landings, balconies, canopies, deck slabs and inshelves and the like etc complete all as specified.

Material and labour for 10mm thick plaster in CM (1:3) and mix with Aqua Arm bond latex as per manufactures instructyion complete including foinish the surface evedn and fair complete all as directed by the Engr In charge.

Formwork to sides of plinth beam, column tie beam etc, including even and smooth finish complete all as specified.

M&L for 75mm thick PCC 1:4:8 type D2 (40 mm graded aggregate) as in Sub base floor finished even and fair as in sub base of floor etc all as directed by the Engineer In Charge.

S&F Chequered cement concrete tiles 30cm x 30cm x 25mm thick, set, jointed and pointed in neat cement slurry in floors with grey cement and pigments over 20 mm thick screed bed in CM 1:6 complete all as specified and as directed.

M&L for Cement concrete PCC 1:3:6 type C2 (40 mm graded aggregate) in surface channels and drains including necessary form work and forming fair finished the surface complete all as specified and as directed.

M & L for preparation of new steel and iron surfaces of any description not other wise described over 10 cm width or girth and applying two coats of synthetic enamel paint over one coat of primer red oxide complete all as specified and directed.

M & L for preparation of old painted surfaces of steel and iron surfaces of any description not other wise described over 10 cm width or girth and applying one coat of synthetic enamel paint complete all as specified and directed Engr-in-Charge.

M & L for preparation of old plastered/painted cement concrete surfaces applying one coat of synthetic enamel paint complete all as specified and as directed.

Supplying and fabricating and placing in position of new TMT bars of any dia by welding or inserting by drilling holes and embeded in epoxy grout bonding agent of hilti or equivalent for all existing reinforcement repair works in any position wherever necessary complete all as specified and as directed by Engineer-in-charge. Note: The lap provided shall be 15 cm on either side of bar which has lost its sectional area.

M & L for Painting lines, dashes, arrows, letters,etc. on roads, pavements and the like exc 10cm wide applying adequate number of coats with road marking paint, white or golden yellow including preparation of surfaces complete all as specified and as directed.

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