Construction of Maintenance Room and Combined Gas Cylinder and Compressor Room at North Bengal Dental College and Hospital , Darjeeling NIT/7/26-27

Clearing compound premises of shurbs, plants, jungles etc. by cutting and removing as directed (Specific permission of Engineer-in-Charge prior to execution will be necessary). (Payment to be made on area cleared)

Surface Dressing of the ground in any kind of soil including removing vegetation inequalities not exceeding 15 cm depth and disposal of the rubbish within a lead upto 75 m as directed.

Dismantling all types of masonry excepting cement concrete plain or reinforced, stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m a) In ground floor including roof.

Dismantling R.C. floor, roof, beams etc. including cutting rods and removing rubbish as directed within a lead of 75 m. including stacking of steel bars, (a) In ground floor including roof.

Earth work in excavation of foundation trenches or drains, in all sorts of soil (including mixed soil but excluding laterite or sandstone) including removing, spreading or stacking the spoils within a lead of 75 m. as directed. The item includes necessary trimming the sides of trenches, levelling, dressing and ramming the bottom, bailing out water as required complete. (a) Depth of excavation not exceeding 1,500 mm.

Earth work in filling in foundation trenches or plinth with good earth, in layers not exceeding 150 mm. including watering and ramming etc. layer by layer complete. (Payment to be made on the basis of measurement of finished quantity of work) (a) With earth obtained from excavation of foundation.

Removal of rubbish,earth etc. from the working site and disposal of the same beyond the compound, in conformity with the Municipal / Corporation Rules for such disposal, loading into truck and cleaning the site in all respect as per direction of Engineer in charge

(A) Filling in foundation or plinth by silver sand in layers not exceeding 150 mm as directed and consolidating the same by thorough saturation with water, ramming complete including the cost of supply of sand. (payment to be made on measurement of finished quantity)

Pre-Constructional Anti- termite measures :- Anti-termite treatment to the top surface of the consolidated earth within plinth walls with chemical emulsion by admixing Imidacloprid emulsifiable concentrates (105ml in 50 lits.) with water @ 5 lits per sqm of the surface before sand bed or sub-grade is laid. Hole upto 50 mm to 75 mm deep at 150 mm centre to centre both ways shall be made with 12mm dietre mild steel rod on the surface to fecilitate saturation of the soil with the chemical emulsion. The work should be carried out as per specification described in 7.2.3 of code IS -6313 (part II) 2013. (Mode of measurement will be plan area plinth treated.

Ordinary Cement concrete (mix 1:2:4) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement,if any, in ground floor as per relevant IS codes.(a) Pakur Variety