Construction of ist house for Ecology department at KFRI

Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including disposal of excavated earth, lead up to 50 m and lift up to 1.5 m, disposed earth to be levelled and neatly dressed. All kinds of soil

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level: 1:3:6 ( 1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size)

Solid block masonry using pre cast solid blocks (Factory made) of size 30x20x15 cm or nearest available size confirming to IS 2185 part I of 1979 for foundation and plinth with thickness 15cm in: CM 1:6 ( 1 cement :6 coarse sand) etc complete

Filling with contractor's own earth ( excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20 cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift up to 1.5 m as per direction of site Engineer-in-charge

Steel work in built up G I tubular ( round, square or rectangular hollow tubes etc.) trusses 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

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

supplying and fixing all side walls with 200micron UV stabilized, 5 layer 90% transmission polyfilm on the GI frmae works using double spring locking 0.8mm thick, smooth edges, flat bottom and PVC coated zig-zag springs of 2.2mm dia and excettents elasticity without damaging the poly film. The channels fixed on the trussess using self drill screws galvanized with hex washer.

12mm cement plaster finished with a floating coat of neat cement of mix :1:4(1cement : 4 fine sand)

Providing and fixing PVC pipes, fittings including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step PVC solvent cement and testing of joints complete as per direction of Engineer-in-Charge 25 mm dia 10Kgf/ cm2- Internal work- Exposed on wall

suppying and fixing LLDPE 16mm dia with Gl wire for supporting pipe tying and fixing including testing of joints complete as per direction of Engineer-in-Charge

supplying and fixing screen filter (1") useful to prevent dirt entering into drip irrigation water supply line. The 120 mesh stainless steel screen filter prevents Dirt, Algae and small particles of Minerals entering into the supply lines .(1")

supplying and fixing fourway fogger emitter leakproof sanp,fit joint,fine droplets of average 70 micrones 5.41ph artoperating pressure,3.5 bar

Providing and placing on terrace (at all floor levels) polyethylene water storage tank :ISI 12701 marked, with cover and suitable locking arrangement and making necessary holes for inlet, outlet and overflow pipes but without fittings and the base support for tank. Circular Tank

Supply and filling floor with 25mm metal including all cost of material, labour for spreadng etc. complete.

Supplying and fixing shadenet of 75% light cut type to the ceiling of the hardening unit including cutting stitching into required dimension, fixing to GI wire by movable pattern, including all cost of materials like shadenet, GI wire, etc. complete .

Providing & fixing Poly carbonate multi wall plain sheet 6 mm thick as approved by the Engineer in charge and should be supplied in a single length of 12m or as decide by the Engineer in charge. The sheets shall be fixed using self drilling/self tapping screw of size (5.5x55mm) with EPDM seal complete upto any pitch in horizontal/vertical curved surfaces, but excluding the cost of purlins, rafters, trusses, and including cutting to size and shapes where ever required.

Supply and installation of pump 0.5Hp (CG, V-Guard, ISI) with all accessories.

Cyclic timer for Humidity/ irrigation : Specific for fogging, misting system, controlled by timer, to avoid the water logging codition in the poly house. Specification:- 0-999 Min/sec on, 0-999 min/sec off automatic cycling, accuracy quartz. Power output can be directly drive misting unit load upto 4.4 KVA. input 200V to 240 V A.C, phase single, 50 Hz. Ambient 4 c to 50 c, RH upto 90%