Board Of Secondary Education Tender

Demolishing stone rubble masonry manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in- Charge:In cement mortar.

Surface dressing of the ground including removing vegetation and in-equalities not exceeding 15 cm deep and disposal of rubbish, lead upto 50 m and lift upto 1.5 m. All kinds of soil.

Earth work in surface excavation not exceeding 30 cm in depth but exceeding 1.5 m in width as well as 10 sqm on plan including disposal of excavated earth upto 50 m lead and lift upto 1.5 m, disposed soil to be levelled and neatly dressed : All kinds of soil

Earth work in excavation by mechanical means (Hydraulic excavator )/ manual means over areas (exceeding 30cm in depth. 1.5m in width as well as 10 sqm on plan) including dressing of sides and ramming of bottom disposal of excavated earth, lead upto 50m and lift upto 1.5m, disposed earth to be levelled and neatly dressed. (No extra lift is payable if work is done by mechanical means). All kinds of soil

Transportation By Mechanical Transport including loading , unloading and stacking.Lime, moorum, building rubbish cum

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :

With 20mm nominal size graded stone aggregate. M 20 – Grade concrete

With 40mm nominal size graded stone aggregate. Nominal Mix -1 Cement : 3 sand : 6 graded stone aggregate (M 10)

Providing and laying in position specified grade of reinforced cement concrete (with 20mm nominal size graded stone aggregate) excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level :M 20 –Grade Concrete

Reinforced cement concrete work (with 20mm nominal size graded stone aggregate) in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, posts and struts etc. above plinth level and up to floor two level excluding cost of centering, shuttering, finishing and reinforcement :M 20 –Grade Concrete

Reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding including cost of binding wire up to floor two level including all wastage etc. complete.Thermo-Mechanically Treated bars. (TMT/TMX) FE 500D conforming to IS 1786.

Centering and shuttering including strutting, propping etc. and removal of form for :

Foundations, footings, bases of columns, etc. for concrete up to plinth level.

Walls (any thickness) including attached pilasters butteresses, plinth beams and string courses etc.up to plinth level. Upto plinth level.

Supplying and filling in plinth under floors including watering ramming consolidating in layers not exceeding 20cm in depth and dressing complete. With hard muram having CBR 12 % at under floors including watering, ramming and compacting (minimum compaction 95% of MDD) in layers not exceeding 20cm in thickness and dressing complete. (Note:- maximum thickness of this layer to be provided shall be 30cm)

Supplying and filling in plinth with crusher stone dust / coarse sand under floors including, watering, ramming consolidating in layers not exceeding 20cm in depth and dressing complete

Filling available excavated earth (excluding hard rock/Ordinary rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m.

Brick work with well burnt chimney bricks in bulls patent trench kiln manufactured by ghol process, crushing strength not less than 40kg /cm2 and water absorption not more than 15% in foundation and plinth i/c curing etc complete.Cement mortar 1:6 (1 cement : 6 sand)

Brick work with well burnt chimney bricks in bulls patent trench kiln manufactured by ghol process ,crushing strength not less than 40kg /cm2 and water absorption not more than 15% in superstructure above plinth level and up to floor two level i/c curing etc complete.Cement mortar 1:6 (1 cement : 6 sand)

Brick work with fly ash lime bricks (FALG Bricks) conforming to IS:12894-2002, in super structure above plinth level up to floor II level in :having 100 kg / cm2 average compressive strength, Cement mortar 1:6 (1 cement : 6 sand)

Providing and laying autoclaved aerated fly ash cement concrete (AAC) masonry blocks (Sizes in mm length 400,500,600, Height 200, 250,300. Width 100, 150, 200, 250) conforming to IS 2185 Part 3, having compressive strength not less than 30 Mpa ( Grade II) and the block is jointed with cement mortar 1:6 (1 cement : 6 sand) or with polymer midified cement mortar ( make such as Magicrete, Fairmate, Ball Endura, Letecrete, or equivalent) as per ASTMC 1660-09 applied in uniform thickness of 2 to 3 mm in horizontal and verticals joints using special trowel, polymer modified mortar having minimum compressive strength and minimum splitting tensile strength of not less than 5MPa amd 0.34 Mpa respectively as per ASTM international standard including racking out joints. the surface of masonry units (AAC-Block) should be slightly wet prior to application of jointing mortar . Block should be gently pressed down using a rubber mallet to expel out entrapped air and the masonry shall be cured for seven days for cement mortar and two days for polymer mdoified moreat. ist layer of masonry block shall be placed placed on perfectly leveled surface, which if required, shall be leveled with M-20 cement concrete at plinth or floor level. Masonry shall have 80 mm thick RCC band with M-20 cement concrete and 2 bars of 8mm dia. Such bands shall be spaced at interval of maximum 1.8 meter in vertical direction and maximum 4.5 meter in horizontal direction. RCC bands shall be measured with AAC block masonry. Rates includes all materials including steel bars, wastages, scaffolding and all labour etc. complete.AAC masonry in polymer modified mortar

Providing and fixing on wall face Rigid Unplasticised rigid PVC (upvc) Single socketed rain water pipes conforming to IS : 13592 Type A including jointing with seal ring conforming to IS : 5382 leaving 10 mm gap for thermal expansion.75 mm diameter (minimum wall thickness 1.8mm)

12 mm cement plaster of mix : 1:6 (1 cement : 6 sand)

18 mm cement plaster in two coats under layer 12 mm thick cement plaster 1:5 (1 cement : 5 sand) finished with a top layer 6mm thick cement plaster 1:4 (1 cement : 4 sand).

Providing and laying damp-proof course 50mm thick with cement concrete 1:2:4 (1 cement : 2 sand : 4 graded stone aggregate 20mm nominal size).

Forming groove of uniform size 20 or 15 mm wide and 15 mm deep in the top layer of washed stone grit plaster as per approved pattern using wooden battens, nailed to the under layer including removal of wooden battens, repair to the edges of panels and finishing the groove complete as per specifications and direction of the Engineer-in-charge :

Providing and fixing broken glass in cement mortar 1.3 including cost of mortar, over compound walls.

Providing and applying white cement based putty of average thickness 1 mm, of approved brand over the plastered wall surface to prepare the surface even and smooth i/c all cost of material, labour and scaffold etc in all position complete.

Applying priming coats with primer of approved brand and manufacture, having low VOC (Volatile Organic Compound) content.With water thinnable cement primer on wall surface having VOC content less than 50 grams/litre.

Providing and Applying Roto Wall finishing system being a dispersion of inorganic fillers, calcite, pure silica, quartz and broad spectrum fungicides stabilized by an acrylic co-polymer, to be applied by means of customized trowels (one for incorporating material on base and spreading and other for finishing) in single coat with a coating thickness of 2.0-2-2.5mm on a cured smooth level plaster without keying, by the approved applicator of manufacturer, of the approved shade as per directions for usage all inclusive including primer coat on the base.

Finishing walls by any mechanical or manual means with Premium Acrylic Smooth exterior paint (Premium exterior) of required shade including all scaffolding. New work (Two or more coat applied @1.67ltr/10sqm over and including one coat undiluted exterior waterproofing coating @ 2.39 litre/10 sqm with crack bridging ability of upto 0.5mm on horizontal surfaces with an elongation of 150% and water proofing of upto 3 bars on vertical surface)

Structural steel work using M.S. flats, angles, channels I-section, H- section etc. riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

Providing and fixing concertina coil fencing with punched tape concertina coil 600 mm dia 10 metre openable length (total length 90 m), having 50 nos rounds per 6 metre length, upto 3 m height of wall with existing angle iron 'Y' shaped placed 2.4m or 3.00m apart and with 9 horizontal R.B.T. reinforced barbed wire, stud tied with G.I. staples and G.I. clips to retain horizontal, including necessary bolts or G.I. barbed wire tied to angle iron, all complete as per direction of Engineer-in charge, with reinforced barbed tape(R.B.T.) / Spring core (2.5 mm thick) wire of high tensile strength of 165 kg/ sq mm with tape (0.52 mm thick) and weight 43.478 gm/ metre (cost of M.S. angle, C.C. blocks shall be paid separately).

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade: Two or more coats on new work.

Providing and laying half round RCC pipes class (light duty) with collars jointed with stiff mixture of cement mortar in the proportion of 1:2 (1 cement : 2 sand) including testing of joints etc. complete : Excavation to be paid seperataly. 300 mm dia. Half round R.C.C. Pipe

Steel work in built up M.S. tubular section (round, square or rectangular hollow tubes etc.) trusses/frame work etc. including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete.Hot finished welded type tubes

Providing and laying factory made chamfered edge Cement Concrete paver blocks of required colour strength, thickness pattern, surface texture (smooth/rough) and size/shape, conforming to 15658-2006 IS marked made by table vibratory method using PU mould, laid in required colour and pattern over 50mm thick compacted bed of stone dust, compacting and proper embedding/ laying of inter locking paver blocks into the bedding layer through vibratory compaction by using plate vibrator, filling the joints with sand and cutting of paver blocks as per required size and pattern, finishing and sweeping extra sand including locking edges in 0.30 mm with courtyards, porch with M 15 cement concrete in footpath, parks, lawns, drive ways or light traffic parking etc. complete as per manufacturer's specifications and direction of Engineer-inCharge.60 mm thick C.C. paver block of M-35 grade

Providing and laying at or near ground level factory made kerb stone of M-25 grade cement concrete in position to the required line, level and curvature, jointed with cement mortar 1:3 (1 cement: 3 sand), including making joints with or without grooves (thickness of joints except at sharp curve shall not to more than 5mm), including making drainage opening wherever required complete etc. as per direction of Engineer-in-charge (length of finished kerb edging shall be measured for payment). (Precast C.C. kerb stone shall be approved by Engineer-in-charge).